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Filed pursuant to Rule 424(b)(5)
Registration Statement No. 333-145282
 
Prospectus Supplement No. 2
(To Prospectus dated August 15, 2007)
 
7,400,000 Shares
 
(MANKIND LOGO)
 
MannKind Corporation
 
Common Stock
 
 
 
We are offering 7,400,000 shares of our common stock. Our common stock is quoted on The NASDAQ Global Market under the symbol “MNKD”. The last reported sale price of our common stock on The NASDAQ Global Market on August 4, 2009 was $8.13 per share.
 
As part of this offering, the underwriters are selling an aggregate of 1,000,000 shares of our common stock to our chairman, chief executive officer and principal stockholder, Alfred E. Mann, at a price of $8.11 per share (equal to the market value of our common stock immediately preceding the pricing of this offering as determined by applicable Nasdaq rules).
 
Investing in our common stock involves risk. See “Risk Factors” beginning on page S-4 of this prospectus supplement.
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
 
                 
 
    Per Share     Total  
 
Public Offering Price
  $ 7.35     $ 47,040,000  
Price to Mr. Mann
  $ 8.11     $ 8,110,000  
Underwriting Discounts and Commissions (1)
  $ 0.28     $ 1,792,000  
Proceeds to Us, Before Expenses, from Shares Sold to the Public
  $ 7.07     $ 45,248,000  
Proceeds to Us, Before Expenses, from Shares Sold to Mr. Mann
  $ 8.11     $ 8,110,000  
 
(1) The underwriters will not receive any underwriting discounts and commissions on the sale of shares to Mr. Mann.
 
We have granted the underwriters a 30-day option to purchase up to an additional 960,000 shares of our common stock solely to cover over-allotments of shares, if any. If the underwriters exercise this option in full, the total underwriting discounts and commissions will be $2,060,800, and our total proceeds, before expenses, will be $60,145,200.
 
We expect to deliver the shares of our common stock to the underwriters on or about August 10, 2009.
 
 
Jefferies & Company
 
Sole Book-Running Manager
 
Rodman & Renshaw, LLC
 
Prospectus Supplement dated August 5, 2009


 

 
Table of Contents
 
         
    Page
 
Prospectus Supplement
       
    S-ii  
    S-1  
    S-4  
    S-5  
    S-6  
    S-7  
    S-8  
    S-11  
    S-13  
    S-13  
    S-13  
    S-13  
       
Prospectus
       
Summary
    1  
Risk Factors
    2  
The Securities We May Offer
    2  
Ratio of Earnings to Fixed Charges
    4  
Special Note Regarding Forward-Looking Statements
    5  
Use of Proceeds
    5  
Description of Common Stock
    6  
Description of Warrants
    8  
Description of Debt Securities
    11  
Legal Ownership of Securities
    16  
Plan of Distribution
    19  
Legal Matters
    20  
Experts
    21  
Where You Can Find More Information
    21  
Incorporation by Reference
    21  
 


Table of Contents

 
About This Prospectus Supplement
 
 
This prospectus supplement and the accompanying prospectus dated August 15, 2007 are part of a registration statement that we filed with the Securities and Exchange Commission, or SEC, utilizing a “shelf” registration process. This prospectus supplement and the accompanying prospectus relate to the offer by us of shares of our common stock to certain investors. We provide information to you about this offering of shares of our common stock in two separate documents that are bound together: (1) this prospectus supplement, which describes the specific details regarding this offering; and (2) the accompanying prospectus, which provides general information, some of which may not apply to this offering. Generally, when we refer to this “prospectus,” we are referring to both documents combined. If information in this prospectus supplement is inconsistent with the accompanying prospectus, you should rely on this prospectus supplement. Our business, financial condition, results of operations and prospects may have changed since the dates of the accompanying prospectus or this prospectus supplement, as applicable. You should read this prospectus supplement, the accompanying prospectus and any free writing prospectus when making your investment decision. You should also read and consider the information in the documents we have referred you to under the headings “Where You Can Find More Information” and “Important Information Incorporated by Reference” in this prospectus supplement.
 
You should rely only on information contained in or incorporated by reference into this prospectus supplement and the accompanying prospectus and any free writing prospectus. We have not, and the underwriters have not, authorized anyone to provide you with information that is different. We are offering to sell and seeking offers to buy shares of our common stock only in jurisdictions where offers and sales are permitted. The information contained in this prospectus supplement, the accompanying prospectus, the documents and information incorporated by reference in this prospectus supplement and the accompanying prospectus, and any free writing prospectus are accurate only as of their respective dates, regardless of the time of delivery of this prospectus supplement or of any sale of our common stock.
 
AFRESA® and Technosphere® are our registered trademarks in the United States. We have also applied for or registered company trademarks in other jurisdictions, including Europe and Japan. All other brand names or trademarks appearing in this prospectus supplement and the accompanying prospectus are the property of their respective holders.
 
In this prospectus supplement, unless the context otherwise indicates, the terms “MannKind,” the “Company,” “we,” “our” and “us” or similar terms refer to MannKind Corporation.


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Prospectus Supplement Summary
 
 
The items in the following summary are described in more detail later in this prospectus supplement and in the accompanying prospectus. This summary provides an overview of selected information and does not contain all the information you should consider before investing in our common stock. Therefore, you should read the entire prospectus supplement, the accompanying prospectus and any free writing prospectus carefully, including the “Risk Factors” section and other documents or information included or incorporated by reference in this prospectus supplement and the accompanying prospectus before making any investment decision.
 
Our Business
 
MannKind Corporation is a biopharmaceutical company focused on the discovery, development and commercialization of therapeutic products for diseases such as diabetes and cancer. Our lead product candidate is an ultra rapid-acting insulin known as AFRESA, which is also the trade name for the product that we have proposed to the United States Food and Drug Administration, or FDA. In March 2009, we submitted a new drug application, or NDA, to the FDA requesting approval of AFRESA for the treatment of adults with type 1 or type 2 diabetes for the control of hyperglycemia. The FDA accepted our NDA for filing in May 2009. We believe that the performance characteristics, unique kinetics, convenience and ease of use of AFRESA have the potential to change the way diabetes is treated.
 
We believe that a distinguishing characteristic of AFRESA is that it produces a profile of insulin levels in the bloodstream that approximates the insulin profile normally seen in healthy individuals immediately following the beginning of a meal, but which is absent in patients with diabetes. Specifically, AFRESA is rapidly absorbed into the bloodstream following inhalation, reaching peak levels within 12 to 14 minutes. As a result of this rapid absorption, most of the glucose-lowering activity of AFRESA occurs within the first three hours of administration — which is generally when glucose becomes available from a meal — instead of the much longer duration of action observed when insulin is injected subcutaneously. We believe that the relatively short duration of action of AFRESA reduces the need for patients to snack between meals in order to manage ongoing blood glucose excursions. In our clinical trials, we have observed that patients using AFRESA have achieved significant reductions in post-meal glucose excursions and significant improvements in overall glucose control, as measured by decreases in glycosylated hemoglobin, or A1C, levels, without the weight gain typically associated with insulin therapy.
 
We have conducted an extensive clinical program, involving more than 40 different studies of AFRESA. Approximately 5,300 subjects participated in our clinical studies, of which more than 2,900 subjects were administered AFRESA. These studies were conducted in healthy volunteers, patients with type 1 and type 2 diabetes as well as diabetic patients with renal dysfunction, liver dysfunction, chronic obstructive pulmonary disease, asthma and upper respiratory tract infections. In addition, we have completed construction and achieved operational readiness of our production facility in Danbury, Connecticut. We believe that our facility will satisfy the initial commercial demand for AFRESA. The facility also includes expansion space that will allow production capacity to be increased based on anticipated needs during the initial years of commercialization. We are preparing for pre-approval inspection of the facility by the FDA. We will only be able to market AFRESA in the United States once, and if, the FDA approves our application.
 
AFRESA utilizes our proprietary Technosphere formulation technology, which is based on a class of organic molecules that are designed to self-assemble into small particles onto which drug molecules can be loaded. Technosphere technology is not limited to insulin delivery. We believe it represents a versatile drug delivery platform that may allow pulmonary administration of certain drugs that currently require administration by injection. Beyond convenience, we believe the key advantage of drugs inhaled as Technosphere formulations is that they have been shown to be absorbed very rapidly into the arterial circulation.
 
We are also developing therapies for the treatment of different types of cancer, which do not utilize our Technosphere platform. We are currently completing two clinical trials of our therapeutic cancer vaccines. We expect to announce the results of these trials by the end of 2009.


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Corporate Information
 
We were incorporated in the State of Delaware in 1991. Our principal executive offices are located at 28903 North Avenue Paine, Valencia, California 91355, and our telephone number at that address is (661) 775-5300. Our website address is http://www.mannkindcorp.com. Information contained in, or accessible through, our website does not constitute a part of this prospectus supplement or the accompanying prospectus.


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The Offering
 
Common stock offered 7,400,000 shares
 
Common stock to be outstanding immediately after this offering 111,046,376 shares
 
Use of proceeds We intend to use the net proceeds from this offering for general corporate purposes, including clinical trial expenses, research and development expenses, general and administrative expenses, manufacturing expenses, and potential acquisitions of companies and technologies that complement our business.
 
Risk factors You should read the “Risk Factors” section of this prospectus supplement and in the documents incorporated by reference in this prospectus supplement for a discussion of factors to consider before deciding to purchase shares of our common stock.
 
NASDAQ Global Market symbol MNKD
 
The number of shares of common stock to be outstanding after this offering as reflected in the table above is based on the actual number of shares outstanding as of June 30, 2009, which was 103,646,376, and does not include, as of that date:
 
  •  5,476,258 shares of common stock issuable upon the exercise of outstanding stock options with a weighted average exercise price of $7.06 per share;
 
  •  3,595,482 shares of common stock issuable upon the settlement of outstanding restricted stock units;
 
  •  5,117,523 shares of common stock issuable upon the conversion of our outstanding 3.75% senior convertible notes due 2013 at a conversion price of approximately $22.47 per share;
 
  •  2,882,873 shares of common stock reserved for issuance upon the exercise of outstanding warrants with a weighted average exercise price of $12.23 per share; and
 
  •  9,487,966 shares of common stock available for future grant under our 2004 equity incentive plan, 2004 non-employee directors’ stock option plan and 2004 employee stock purchase plan.
 
To the extent that any of these options or warrants are exercised, restricted stock units are settled, convertible notes are converted, new options or restricted stock units are issued under our equity incentive plans or we issue additional shares of common stock in the future, there will be further dilution to new investors.
 
Except as otherwise indicated, all information in the prospectus supplement assumes no exercise by the underwriters of their over-allotment option.
 
Sale of Common Stock in this Offering to Alfred E. Mann
 
As part of this offering, the underwriters are selling an aggregate of 1,000,000 shares of our common stock to our chairman, chief executive officer and principal stockholder, Alfred E. Mann at a price of $8.11 per share (equal to the market value of our common stock immediately preceding the pricing of this offering as determined by applicable Nasdaq rules). The underwriters will not receive any underwriting discounts and commissions on the sale of shares to Mr. Mann.


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Risk Factors
 
 
You should consider carefully the risks described below, and in the section entitled “Risk Factors” contained in our quarterly report on Form 10-Q for the fiscal quarter ended June 30, 2009, together with other information in this prospectus supplement, the accompanying prospectus and the information and documents incorporated by reference in this prospectus supplement and the accompanying prospectus, as well as any free writing prospectus, before you make a decision to invest in our common stock. If any of the following events actually occur, our business, operating results, prospects or financial condition could be materially and adversely affected. This could cause the trading price of our common stock to decline and you may lose all or part of your investment. The risks described below are not the only ones that we face. Additional risks not presently known to us or that we currently deem immaterial may also affect our business operations.
 
Risks Related to this Offering
 
Management will have broad discretion as to the use of the proceeds from this offering, and we may not use the proceeds effectively.
 
We intend to use the net proceeds from this offering for general corporate purposes, including clinical trial expenses, research and development expenses, general and administrative expenses, manufacturing expenses, and potential acquisitions of companies and technologies that complement our business. Accordingly, our management will have broad discretion as to the application of the net proceeds from this offering, and could spend the proceeds in ways that do not necessarily improve our operating results or enhance the value of our common stock.


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Special Note Regarding Forward-Looking Statements
 
 
This prospectus supplement, the accompanying prospectus, and the documents incorporated by reference herein and therein contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. These statements relate to future events or to our future financial performance and involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from any future results, performances or achievements expressed or implied by the forward-looking statements. Forward-looking statements include, but are not limited to statements about:
 
  •  the progress, timing and results of clinical trials and research and development efforts involving our product candidates;
 
  •  the submission of applications for and receipt of regulatory clearances and approvals;
 
  •  our ability to successfully protect our intellectual property;
 
  •  our plans to conduct future clinical trials or research and development efforts;
 
  •  our expectations about partnering, marketing and commercializing our product candidates; and
 
  •  economic conditions, both generally and those specifically related to the biotechnology industry.
 
In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “could,” “would,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “projects,” “predicts,” “potential” and similar expressions intended to identify forward-looking statements. These statements reflect our current views with respect to future events and are based on assumptions and subject to risks and uncertainties. Given these uncertainties, you should not place undue reliance on these forward-looking statements. We discuss many of these risks in greater detail in the documents incorporated by reference herein, including under the heading “Risk Factors”. Also, these forward-looking statements represent our estimates and assumptions only as of the date of the document containing the applicable statement.
 
Unless required by law, we undertake no obligation to update or revise any forward-looking statements to reflect new information or future events or developments. Thus, you should not assume that our silence over time means that actual events are bearing out as expressed or implied in such forward-looking statements. Before deciding to purchase our common stock, you should carefully consider the risk factors incorporated by reference herein, in addition to the other information set forth in this prospectus supplement, the accompanying prospectus and in the documents incorporated by reference herein and therein.


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Use of Proceeds
 
 
We estimate that the net proceeds from the sale of the 7,400,000 shares of common stock we are offering will be approximately $53.0 million. If the underwriters exercise the over-allotment option in full, the net proceeds of the shares we sell will be approximately $59.7 million. “Net proceeds” is what we expect to receive after paying the underwriting discounts and commissions and other expenses of this offering.
 
We intend to use the net proceeds from this offering for general corporate purposes, including clinical trial expenses, research and development expenses, general and administrative expenses, manufacturing expenses, and potential acquisitions of companies and technologies that complement our business.
 
As of the date of this prospectus supplement, we cannot specify with certainty all of the particular uses of the proceeds from this offering. Accordingly, we will retain broad discretion over the use of such proceeds. Pending the use of the net proceeds from this offering as described above, we intend to invest the net proceeds in investment-grade, interest-bearing instruments.


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Dilution
 
 
Our net tangible book deficit on June 30, 2009 was approximately $19.3 million, or $0.19 per share of common stock. “Net tangible book deficit” is total assets minus the sum of liabilities and intangible assets. “Net tangible book deficit per share” is net tangible book deficit divided by the total number of common stock shares outstanding.
 
After giving effect to the sale of 1,000,000 shares of common stock offered by us in this offering to Mr. Mann as described elsewhere in this prospectus supplement at a price of $8.11 per share, our pro forma net tangible book deficit on June 30, 2009 would have been $11.2 million, or $0.11 per share of common stock.
 
After giving further effect to the sale of the remaining 6,400,000 shares of common stock offered by us in this offering at the public offering price of $7.35 per share, our pro forma as adjusted net tangible book value on June 30, 2009 would have been $33.7 million, or $0.30 per share of common stock. The adjustments made to determine pro forma as adjusted net tangible book value per share are the following:
 
  •  an increase in total assets to reflect the net proceeds (net of underwriting discounts and commissions of approximately $1.8 million and estimated offering expenses of approximately $0.4 million) of the offering as described under “Use of Proceeds”; and
 
  •  the addition of the number of shares offered by this prospectus supplement to the number of shares outstanding as of June 30, 2009.
 
 
The following table illustrates the pro forma as adjusted increase in net tangible book value of $0.49 per share and the dilution (the difference between the offering price per share and net tangible book value per share) to new investors:
 
         
 
Public offering price per share
  $ 7.35  
Net tangible book deficit per share on June 30, 2009
  $ 0.19  
Increase in net tangible book value per share attributable to Mr. Mann’s purchase in this offering
  $ 0.08  
Further increase in net tangible book value per share attributable to the other new investors’ purchase in this offering
  $ 0.41  
Pro forma as adjusted net tangible book value per share on June 30, 2009, after giving effect to the offering
  $ 0.30  
Dilution per share to new investors in the offering
  $ 7.05  
 
The following table shows the difference between existing stockholders and new investors with respect to the number of shares purchased from us, the total consideration paid and the average price paid per share.
 
                                         
 
    Shares Purchased     Total Consideration     Average Price  
    Number     Percent     Amount     Percent     Per Share  
 
Existing stockholders
    103,646,376       93.3 %   $ 1,141,216,000       95.4 %   $ 11.01  
New investors (Mr. Mann)
    1,000,000       0.9 %   $ 8,110,000       0.7 %   $ 8.11  
New investors (others)
    6,400,000       5.8 %   $ 47,040,000       3.9 %   $ 7.35  
                                         
Total
    111,046,376       100 %   $ 1,196,366,000       100 %   $ 10.77  
                                         
 
The above discussion and tables are based on 103,646,376 common shares outstanding at June 30, 2009, and do not include, as of that date:
 
  •  5,476,258 shares of common stock issuable upon the exercise of outstanding stock options with a weighted average exercise price of $7.06 per share;
 
  •  3,595,482 shares of common stock issuable upon the settlement of outstanding restricted stock units;
 
  •  5,117,523 shares of common stock issuable upon the conversion of our outstanding 3.75% senior convertible notes due 2013 at a conversion price of approximately $22.47 per share;
 
  •  2,882,873 shares of common stock reserved for issuance upon the exercise of outstanding warrants with a weighted average exercise price of $12.23 per share; and
 
  •  9,487,966 shares of common stock available for future grant under our 2004 equity incentive plan, 2004 non-employee directors’ stock option plan and 2004 employee stock purchase plan.


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Underwriting
 
 
Under the terms and subject to the conditions contained in an underwriting agreement, dated August 5, 2009, by and among the company and the underwriters named below, for whom Jefferies & Company, Inc. is acting as representative, the underwriters have agreed to purchase, and we have agreed to sell to them, the number of shares of common stock indicated in the table below:
 
         
 
    Number
 
Underwriters   of Shares  
 
Jefferies & Company, Inc. 
    5,000,000  
Rodman & Renshaw, LLC
    2,400,000  
Total
    7,400,000  
 
The underwriters are offering the common stock subject to their acceptance of the shares from us and subject to prior sale. The underwriting agreement provides that the obligations of the underwriters to pay for and accept delivery of the common stock offered by this prospectus supplement are subject to the approval of certain legal matters by their counsel and to certain other conditions. The underwriters are obligated to take and pay for all of the common stock if any such shares are taken.
 
As part of this offering, the underwriters are selling an aggregate of 1,000,000 shares of our common stock to our chairman, chief executive officer and principal stockholder, Alfred E. Mann. The underwriters will not receive any underwriting discounts and commissions on the sale of common stock to Mr. Mann.
 
Option to Purchase Additional Shares
 
We have granted to the underwriters an option, exercisable for 30 days from the date of this prospectus supplement, to purchase up to an aggregate of 960,000 additional shares of common stock at the same price as they are paying for the shares shown in the table above. The underwriters may exercise this option at any time and from time to time, in whole or in part, within 30 days after the date of this prospectus supplement.
 
Commission and Expenses
 
The underwriters have advised us that they propose to offer the common stock to the public at the public offering price set forth on the cover page of this prospectus supplement and to certain dealers at that price less a concession not in excess of $0.10 per share. After the offering, the public offering price and concession to dealers may be reduced by the representative. No such reduction shall change the amount of proceeds to be received by us as set forth on the cover page of this prospectus supplement. The shares are offered by the underwriters as stated herein, subject to receipt and acceptance by them and subject to their right to reject any order in whole or in part.
 
The following table shows the public offering price, the per share and total underwriting discounts and commissions payable to the underwriters by us and the proceeds, before expenses, to us from shares sold to the public and shares sold to our officers and directors.
 
                 
 
    Per Share     Total  
 
Public offering price
  $ 7.35     $ 47,040,000  
Underwriting discounts and commissions paid by us (1)
  $ 0.28     $ 1,792,000  
Proceeds to us, before expenses, from shares sold to the public
  $ 7.07     $ 45,248,000  
Proceeds to us, before expenses, from shares sold to Mr. Mann
  $ 8.11     $ 8,110,000  
 
 
(1)  The underwriters will not receive any underwriting discounts and commissions on the sale of our shares to Mr. Mann.
 
The underwriters have agreed that with respect to the purchase by Rodman & Renshaw, LLC of 960,000 shares of common stock subject to the over-allotment option, Rodman & Renshaw, LLC will pay Jefferies & Company, Inc.


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an amount equal to 78.125% of the excess of the price at which Rodman & Renshaw, LLC sells such shares to the public over the price paid to us by Rodman & Renshaw, LLC for such shares.
 
We estimate expenses payable by us in connection with the offering of common stock, other than the underwriting discounts and commissions referred to above, will be approximately $0.4 million.
 
Indemnification
 
We have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act, or to contribute to payments that the underwriters may be required to make in respect of those liabilities.
 
Lock-up Agreements
 
We and our executive officers and directors have agreed, subject to specified exceptions, not to directly or indirectly:
 
•  offer, pledge, assign, encumber, announce the intention to sell, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, or otherwise transfer or dispose of, any common stock or any securities convertible into or exercisable or exchangeable for common stock owned either of record or beneficially in accordance with the rules and regulations of the Securities and Exchange Commission, or
 
•  enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the common stock, whether any such transaction described herein or above is to be settled by delivery of common stock or such other securities, in cash or otherwise; or
 
•  make any demand for or exercise any right with respect to, the registration of any common stock or any security convertible into or exercisable or exchangeable for common stock.
 
This restriction terminates after the close of trading of the shares on and including the 60 days after the date of this prospectus supplement. However, subject to certain exceptions, in the event that either (i) during the last 17 days of the 60-day restricted period, we issue an earnings release or material news or a material event relating to us occurs or (ii) prior to the expiration of the 60-day restricted period, we announce that we will release earnings results during the 16-day period beginning on the last day of the 60-day restricted period, then in either case the expiration of the 60-day restricted period will be extended until the expiration of the 18-day period beginning on the date of the issuance of an earnings release or the occurrence of the material news or event, as applicable.
 
Jefferies & Company, Inc. may, on behalf of the underwriters, at any time or from time to time before the termination of the 60-day period, without notice, release all or any portion of the securities subject to lock-up agreements. There are no existing agreements between the underwriters and any of our stockholders who will execute a lock-up agreement, providing consent to the sale of shares prior to the expiration of the lock-up period.
 
Listing
 
Our common stock is listed on the NASDAQ Global Market under the trading symbol “MNKD”.
 
Electronic Distribution
 
This prospectus supplement and the accompanying prospectus in electronic format may be made available on websites or through other online services maintained by the underwriters of the offering, or by their affiliates. Other than the prospectus in electronic format, the information on the underwriters’ websites and any information contained in any other website maintained by any underwriter is not part of the prospectus or the registration statement of which this prospectus supplement forms a part, has not been approved and/or endorsed by us or the underwriters in their capacity as underwriters and should not be relied upon by investors.


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Price Stabilization, Short Positions and Penalty Bids
 
Until the distribution of the shares of common stock is completed, SEC rules may limit the underwriters from bidding for and purchasing shares.
 
In connection with this offering, the underwriters may engage in transactions that stabilize, maintain or otherwise make short sales of our common stock and may purchase our common stock on the open market to cover positions created by short sales. Short sales involve the sale by the underwriters of a greater number of shares than they are required to purchase in this offering. “Covered” short sales are sales made in an amount not greater than the underwriters’ option to purchase additional shares in this offering. The underwriters may close out any covered short position by either exercising their option to purchase additional shares or purchasing shares in the open market. In determining the source of shares to close out the covered short position, the underwriters will consider, among other things, the price of shares available for purchase in the open market as compared to the price at which they may purchase shares through the option to purchase additional shares. “Naked” short sales are sales in excess of the option to purchase additional shares. The underwriters must close out any naked short position by purchasing shares in the open market. A naked short position is more likely to be created if the underwriters are concerned that there may be downward pressure on the price of the shares in the open market after pricing that could adversely affect investors who purchase in this offering. A “stabilizing bid” is a bid for or the purchase of common stock on behalf of the underwriters in the open market prior to the completion of this offering for the purpose of fixing or maintaining the price of the shares of common stock. A “syndicate covering transaction” is the bid for or purchase of common stock on behalf of the underwriters to reduce a short position incurred by the underwriters in connection with the offering.
 
Similar to other purchase transactions, the underwriters’ purchases to cover the syndicate short sales may have the effect of raising or maintaining the market price of our shares or preventing or retarding a decline in the market price of our shares. As a result, the price of our shares may be higher than the price that might otherwise exist in the open market.
 
In connection with this offering, the underwriters may also engage in passive market making transactions in our common stock on the NASDAQ Global Market in accordance with Rule 103 of Regulation M during a period before the commencement of offers or sales of shares of our common stock in this offering and extending through the completion of distribution. A passive market maker must display its bid at a price not in excess of the highest independent bid of that security. However, if all independent bids are lowered below the passive market maker’s bid, that bid must then be lowered when specified purchase limits are exceeded.
 
None of we or the underwriters makes any representation or prediction as to the direction or magnitude of any effect that the transactions described above may have on the price of our common stock. In addition, none of we or the underwriters makes any representation that the underwriters will engage in these transactions or that any transaction, if commenced, will not be discontinued without notice.
 
Affiliations
 
In the future, the underwriters and their affiliates may provide various investment banking, commercial banking, financial advisory and other services to us and our affiliates for which services they have received, and may in the future receive, customary fees. In the course of their businesses, the underwriters and their affiliates may actively trade our securities or loans for their own account or for the accounts of customers, and, accordingly, the underwriters and their affiliates may at any time hold long or short positions in such securities or loans.


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Notice to Investors
 
European Economic Area
 
In relation to each Member State of the European Economic Area which has implemented the Prospectus Directive (as defined below) (each, a “Relevant Member State”), with effect from and including the date on which the Prospectus Directive is implemented in that Relevant Member State (the “Relevant Implementation Date”) an offer of our common stock to the public may not be made in that Relevant Member State prior to the publication of a prospectus in relation to our common stock which has been approved by the competent authority in that Relevant Member State or, where appropriate, approved in another Relevant Member State and notified to the competent authority in that Relevant Member State, all in accordance with the Prospectus Directive, except that an offer to the public in that Relevant Member State of any shares of our common stock may be made at any time under the following exemptions under the Prospectus Directive if they have been implemented in the Relevant Member State:
 
(a) to legal entities which are authorized or regulated to operate in the financial markets or, if not so authorized or regulated, whose corporate purpose is solely to invest in securities;
 
(b) to any legal entity which has two or more of (1) an average of at least 250 employees during the last financial year; (2) a total balance sheet of more than €43,000,000 and (3) an annual net turnover of more than €50,000,000, as shown in its last annual or consolidated accounts;
 
(c) to fewer than 100 natural or legal persons per Relevant Member State (other than qualified investors as defined in the Prospectus Directive); or
 
(d) in any other circumstances falling within Article 3(2) of the Prospectus Directive, provided that no such offer of our common stock shall result in a requirement for the publication by us or any underwriter of a prospectus pursuant to Article 3 of the Prospectus Directive.
 
For the purposes of this provision, the expression an “offer of our common stock to the public” in relation to any shares of our common stock in any Relevant Member State means the communication in any form and by any means of sufficient information on the terms of the offer and our common stock to be offered so as to enable an investor to decide to purchase or subscribe our common stock, as the same may be varied in that Member State by any measure implementing the Prospectus Directive in that Member State and the expression “Prospectus Directive” means Directive 2003/71/EC and includes any relevant implementing measure in each Relevant Member State.
 
United Kingdom
 
Shares of our common stock may not be offered or sold and will not be offered or sold to any persons in the United Kingdom other than to persons whose ordinary activities involve them in acquiring, holding, managing or disposing of investments (as principal or as agent) for the purposes of their businesses or otherwise in circumstances which have not resulted or will not result in an offer to the public in the United Kingdom within the meaning of the Financial Services and Markets Act 2000, or the FSMA.
 
In addition, any invitation or inducement to engage in investment activity (within the meaning of section 21 of the FSMA) in connection with the issue or sale of shares of our common stock may only be communicated or caused to be communicated in circumstances in which Section 21(1) of the FSMA does not apply to us. Without limitation to the other restrictions referred to herein, this prospectus supplement is directed only at (1) persons outside the United Kingdom or (2) persons who:
 
(a) are qualified investors as defined in section 86(7) of FSMA, being persons falling within the meaning of article 2.1(e)(i), (ii) or (iii) of the Prospectus Directive; and
 
(b) are either persons who fall within article 19(1) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended, or Order, or are persons who fall within article 49(2)(a) to (d) (“high net worth companies, unincorporated associations, etc.”) of the Order; or


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(c) to whom it may otherwise lawfully be communicated in circumstances in which Section 21(1) of the FSMA does not apply.
 
Without limitation to the other restrictions referred to herein, any investment or investment activity to which this offering circular relates is available only to, and will be engaged in only with, such persons, and persons within the United Kingdom who receive this communication (other than persons who fall within (2) above) should not rely or act upon this communication.
 
Germany
 
Any offer or solicitation of securities within Germany must be in full compliance with the German Securities Prospectus Act (Wertpapierprospektgesetz — WpPG). The offer and solicitation of securities to the public in Germany requires the publication of a prospectus that has to be filed with and approved by the German Federal Financial Services Supervisory Authority (Bundesanstalt für Finanzdienstleistungsaufsicht — BaFin). This prospectus supplement has not been and will not be submitted for filing and approval to the BaFin and, consequently, will not be published. Therefore, this prospectus supplement does not constitute a public offer under the German Securities Prospectus Act (Wertpapierprospektgesetz). This prospectus supplement and any other document relating to our common stock, as well as any information contained therein, must therefore not be supplied to the public in Germany or used in connection with any offer for subscription of our common stock to the public in Germany, any public marketing of our common stock or any public solicitation for offers to subscribe for or otherwise acquire our common stock. This prospectus supplement and other offering materials relating to the offer of our common stock are strictly confidential and may not be distributed to any person or entity other than the designated recipients hereof.
 
Sweden
 
This is not a prospectus under, and has not been prepared in accordance with the prospectus requirements provided for in, the Swedish Financial Instruments Trading Act [lagen (1991:980) om handel med finasiella instrument] nor any other Swedish enactment. Neither the Swedish Financial Supervisory Authority nor any other Swedish public body has examined, approved, or registered this document.


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Legal Matters
 
 
The validity of the issuance of the securities offered hereby will be passed upon by our counsel, Cooley Godward Kronish LLP, San Diego, California. The underwriters are being represented in connection with this offering by Latham & Watkins LLP, San Diego, California.
 
Experts
 
 
The financial statements incorporated in this Prospectus by reference from the Company’s Annual Report on Form 10-K for the year ended December 31, 2008, and the effectiveness of MannKind Corporation’s internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports, which are incorporated herein by reference. Such financial statements have been so incorporated in reliance upon the reports of such firm given upon their authority as experts in accounting and auditing.
 
Where You Can Find More Information
 
 
We have filed with the SEC a registration statement on Form S-3 under the Securities Act with respect to the shares of common stock we are offering under this prospectus supplement. This prospectus supplement and the accompanying prospectus do not contain all of the information set forth in the registration statement and the exhibits to the registration statement. For further information with respect to us and the securities we are offering under this prospectus supplement, we refer you to the registration statement and the exhibits and schedules filed as a part of the registration statement. We also file annual, quarterly and current reports, proxy statements and other information with the SEC. You may read and copy the registration statement, as well as any other material we file with the SEC, at the SEC’s Public Reference Room at 100 F Street, NE, Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for more information on the Public Reference Room. The SEC maintains an Internet site that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC, including MannKind. The SEC’s Internet site can be found at http://www.sec.gov.
 
Important Information Incorporated by Reference
 
 
The SEC allows us to “incorporate by reference” into this prospectus supplement the information we file with it, which means that we can disclose important information to you by referring you to those documents. Information incorporated by reference is part of this prospectus supplement. Later information filed with the SEC will update and supersede this information. The SEC’s Internet site can be found at http://www.sec.gov.
 
We incorporate by reference the documents listed below and any future filings made with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act until this offering is completed:
 
  •  our annual report on Form 10-K for the year ended December 31, 2008, which was filed on February 27, 2009, and amended on August 4, 2009;
 
  •  our quarterly reports on Form 10-Q for the quarter ended March 31, 2009, which was filed on May 4, 2009, and for the quarter ended June 30, 2009, which was filed on August 3, 2009;
 
  •  our current reports on Form 8-K (other than the information furnished rather than filed) which were filed on February 27, 2009, March 9, 2009, March 17, 2009, May 19, 2009, June 9, 2009, June 22, 2009 and August 4, 2009; and
 
  •  the description of our common stock set forth in our registration statement on Form 8-A, filed with the SEC on July 23, 2004, including any amendments or reports filed for the purposes of updating this description.


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You may request a copy of these filings, at no cost, by contacting us at:
 
Investor Relations
MannKind Corporation
28903 North Avenue Paine
Valencia, CA 91355
(661) 775-5300
 
In accordance with Rule 412 of the Securities Act, any statement contained in a document incorporated by reference herein shall be deemed modified or superseded to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or supersedes such statement.


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PROSPECTUS
 
$350,000,000
 
(MANNKIND CORPORATION LOGO)
 
MANNKIND CORPORATION
 
COMMON STOCK
WARRANTS
DEBT SECURITIES
 
 
 
 
From time to time, we may sell up to an aggregate of $350,000,000 of our common stock, warrants or debt securities. We will specify in any accompanying prospectus supplement the terms of any offering.
 
Our common stock is traded on the NASDAQ Global Market under the trading symbol “MNKD.” The applicable prospectus supplement will contain information, where applicable, as to other listings, if any, on the NASDAQ Global Market or other securities exchange of the securities covered by the prospectus supplement.
 
Our principal executive offices are located at 28903 North Avenue Paine, Valencia, California 91355, and our telephone number at that address is (661) 775-5300.
 
You should read this prospectus and any prospectus supplement carefully before you invest.
 
 
 
 
INVESTING IN OUR SECURITIES INVOLVES A HIGH DEGREE OF RISK. SEE THE SECTIONS ENTITLED “RISK FACTORS” IN OUR MOST RECENT ANNUAL REPORT ON FORM 10-K AND IN OUR MOST RECENT QUARTERLY REPORT ON FORM 10-Q, BOTH AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND BOTH OF WHICH ARE INCORPORATED HEREIN BY REFERENCE IN THEIR ENTIRETY.
 
 
 
 
This prospectus may not be used to offer or sell any securities unless accompanied by a prospectus supplement.
 
The securities may be sold directly by us to investors, through agents designated from time to time or to or through underwriters or dealers. For additional information on the methods of sale, you should refer to the section entitled “Plan of Distribution.” If any underwriters are involved in the sale of any securities with respect to which this prospectus is being delivered, the names of such underwriters and any applicable discounts or commissions and over allotment options will be set forth in a prospectus supplement. The price to the public of such securities and the net proceeds we expect to receive from such sale will also be set forth in a prospectus supplement.
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
 
The date of this Prospectus is August 15, 2007.


 

 
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You should rely only on the information contained or incorporated by reference in this prospectus and any applicable prospectus supplement. We have not authorized anyone to provide you with information different from that contained or incorporated by reference in this prospectus and any applicable prospectus supplement. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained or incorporated by reference in this prospectus and any applicable prospectus supplement. You must not rely on any unauthorized information or representation. This prospectus is an offer to sell and is seeking offers to buy only the securities offered hereby, but only under circumstances and in jurisdictions where it is lawful to do so. You should assume that the information contained in this prospectus is accurate only as of the date on the front of this prospectus and that any information we have incorporated by reference or included in any prospectus supplement is accurate only as of the date given in the document incorporated by reference or the prospectus supplement, as applicable, regardless of the time of delivery of this prospectus, any applicable prospectus supplement or any sale of our securities. Our business, financial condition, results of operations and prospects may have changed since that date.
 
Technosphere® and MedTone® are our registered trademark in the United States. We have also applied for or registered company trademarks in other jurisdictions, including Europe and Japan. This document also contains trademarks and service marks owned by other companies that are the property of their respective owners. Use or display by us of other parties’ trademarks, trade dress or products in this prospectus is not intended to, and does not imply a relationship with, or endorsements or sponsorship of, us by the trademark or trade dress owners.
 
 
 
 
ABOUT THIS PROSPECTUS
 
This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission, or SEC, using a “shelf” registration process. Under this shelf registration process, we may sell common stock, warrants or debt securities in one or more offerings up to a total dollar amount of $350,000,000. This prospectus provides you with a general description of the securities we may offer. Each time we sell common stock, warrants or debt securities, we will provide a prospectus supplement that will contain more specific information about the securities offered. We may also use a prospectus supplement to add, update or change any of the information contained in this prospectus or in the documents we have incorporated by reference into this prospectus. This prospectus, together with any applicable prospectus supplement and the materials we have incorporated by reference into this prospectus and the prospectus supplement, includes all material information relating to this offering. Please carefully read both this prospectus and any applicable prospectus supplement together with the additional information described below under “Where You Can Find More Information” before buying any securities in this offering.


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SUMMARY
 
The following summary provides an overview of selected information relating to this offering and does not contain all the information that you should consider before investing in our securities. You should carefully read this prospectus, all documents incorporated by reference, any prospectus supplement, and the additional information described under the caption “WHERE YOU CAN FIND MORE INFORMATION,” beginning on page 21, before buying securities in this offering. References in this prospectus to “MannKind,” the “Company,” “we,” “us” and “our” refer to MannKind Corporation and its subsidiary, on a consolidated basis, unless the context requires otherwise.
 
MannKind Corporation
 
MannKind Corporation is a biopharmaceutical company focused on the discovery, development and commercialization of therapeutic products for patients with diseases such as diabetes and cancer. Our lead investigational product candidate, the Technosphere Insulin System, is currently in Phase 3 clinical trials in the United States, Europe and Latin America to study its safety and efficacy in the treatment of diabetes. This dry powder therapy consists of our proprietary Technosphere particles onto which insulin molecules are loaded. These loaded particles are then aerosolized and inhaled into the deep lung using our proprietary MedTone inhaler. We believe that the performance characteristics, unique kinetics, convenience and ease of use of the Technosphere Insulin System may have the potential to change the way diabetes is treated.
 
In particular, we have observed in our clinical trials to date that the Technosphere Insulin System produces a profile of insulin levels in the bloodstream that approximates the insulin profile normally seen in healthy individuals immediately following the beginning of a meal, but which is absent in patients with diabetes. Specifically, Technosphere Insulin is rapidly absorbed into the bloodstream following inhalation, reaching peak levels within 12 to 14 minutes. As a result of this rapid onset of action, most of the glucose-lowering activity of Technosphere Insulin occurs within the first three hours of administration — which is generally the time in which glucose becomes available from a meal — instead of the much longer duration of action observed when insulin is injected subcutaneously. We believe that the relatively short duration of action of Technosphere Insulin reduces the need for patients to snack between meals in order to manage ongoing blood glucose excursions. In our clinical trials, we have observed that patients using Technosphere Insulin have achieved significant reductions in post-meal glucose excursions and significant improvements in overall glucose control, as measured by decreases in glycosylated hemoglobin, or HbA1c, levels, without the weight gain typically associated with insulin therapy.
 
In our clinical trials to date, we have observed no difference in pulmonary function between patients treated with Technosphere Insulin and patients treated with standard diabetes care. However, the longest study that we have completed so far is a six-month trial. In September 2006, we completed patient enrollment in a pivotal, two-year, Phase 3, safety study of the Technosphere Insulin System that compares the pulmonary function of diabetes patients randomized to either Technosphere Insulin or standard diabetes care. We have completed patient enrollment in three other major Phase 3 clinical trials, two of which are pivotal efficacy trials. Based on our discussions with the Food and Drug Administration, we plan to accumulate two years of controlled safety data before we file a new drug application for the Technosphere Insulin System. We anticipate that our entire clinical trial program, including several special population studies, will involve more than 4,500 patients. Larger populations and longer durations of exposure may be necessary depending on the safety profile of our product.
 
Our Technosphere Insulin System utilizes our proprietary Technosphere formulation technology, which is based on a class of organic molecules that are designed to self-assemble into small particles onto which drug molecules can be loaded. We are also developing additional Technosphere-based products for the delivery of other drugs. In May 2007, we initiated a clinical trial in healthy individuals for a second Technosphere product, MKC-253. This trial is being conducted in Europe. MKC-253 is a Technosphere formulation of glucagon-like peptide 1, or GLP-1, that we are evaluating for safety, tolerability, and pharmacokinetics. GLP-1 is a hormone secreted in the small intestine and colon in response to food intake. GLP-1 in healthy individuals is known to stimulate insulin secretion and slow gastric emptying. Patients with type 2 diabetes often exhibit a lower level of GLP-1 secretion. In addition to these products, we are developing therapies for the treatment of solid tumor cancers. We initiated a Phase 1 clinical trial of a therapeutic cancer vaccine in January 2007.


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We are a development stage enterprise and have incurred significant losses since our inception in 1991. As of June 30, 2007, we have reported accumulated net losses of $933.0 million. To date, we have not generated any product revenues and have funded our operations primarily through the sale of equity securities.
 
We do not anticipate sales of any product prior to regulatory approval and commercialization of our Technosphere Insulin System. We currently do not have the required approvals to market any of our product candidates, and we may not receive any approvals. We may not be profitable even if we succeed in commercializing any of our product candidates. We expect to make substantial and increasing expenditures and to incur additional operating losses for at least the next several years as we:
 
  •  continue the clinical development and commercialization of our Technosphere Insulin System for the treatment of diabetes;
 
  •  expand our manufacturing operations for our Technosphere Insulin System to meet our currently anticipated commercial production needs;
 
  •  expand our other research, discovery and development programs;
 
  •  expand our proprietary Technosphere platform technology and develop additional applications for the pulmonary delivery of other drugs; and
 
  •  enter into sales and marketing collaborations with other companies, if available on commercially reasonable terms, or develop these capabilities ourselves.
 
Our business is subject to significant risks, including but not limited to the risks inherent in our ongoing clinical trials and the regulatory approval process, the results of our research and development efforts, competition from other products and technologies and uncertainties associated with obtaining and enforcing patent rights.
 
Risk Factors
 
An investment in our securities involves a high degree of risk. Prior to making a decision about investing in our securities, you should carefully consider the specific risk factors discussed in the sections entitled “Risk Factors” contained in any applicable prospectus supplement and our filings with the SEC and incorporated by reference in this prospectus, together with all of the other information contained in this prospectus, any applicable prospectus supplement, or incorporated by reference in this prospectus. These risks and uncertainties are not the only risks and uncertainties we face. Additional risks and uncertainties not presently known to us, or that we currently view as immaterial, may also impair our business. If any of the risks or uncertainties described in our SEC filings or any prospectus supplement or any additional risks and uncertainties actually occur, our business, financial condition and results of operations could be materially and adversely affected. In that case, the trading price of our securities could decline and you might lose all or part of your investment.
 
The Securities We May Offer
 
We may offer shares of our common stock, various series of debt securities and/or warrants to purchase any of these securities, with a total value of up to $350,000,000, from time to time under this prospectus at prices and on terms to be determined by market conditions at the time of offering. This prospectus provides you with a general description of the securities we may offer. Each time we offer a type or series of securities, we will provide a prospectus supplement that will describe the specific amounts, prices and other important terms of the securities, including, to the extent applicable:
 
  •  designation or classification;
 
  •  aggregate principal amount or aggregate offering price;
 
  •  maturity, if applicable;
 
  •  original issue discount, if any;
 
  •  rates and times of payment of interest, dividends or other payments, if any;


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  •  redemption, conversion, exercise, exchange or sinking fund terms, if any;
 
  •  ranking;
 
  •  restrictive covenants, if any;
 
  •  voting or other rights, if any; and
 
  •  certain federal income tax considerations.
 
A prospectus supplement also may add, update or change information contained in this prospectus or in documents we have incorporated by reference. However, no prospectus supplement shall offer a security that is not registered and described in this prospectus at the time of its effectiveness.
 
This prospectus may not be used to offer or sell securities unless it is accompanied by a prospectus supplement.
 
We may sell the securities directly to or through agents, underwriters or dealers. We, and our agents, dealers or underwriters, reserve the right to accept or reject all or part of any proposed purchase of securities. If we do offer securities through agents or underwriters, we will include in the applicable prospectus supplement:
 
  •  the name of those agents or underwriters;
 
  •  applicable fees, discounts and commissions to be paid to them;
 
  •  details regarding over-allotment options, if any; and
 
  •  the net proceeds to us.
 
Common Stock.  We may issue shares of our common stock from time to time. Holders of our common stock are entitled to one vote per share on all matters submitted to a vote of stockholders. Subject to any preferences of any of our preferred stock that may be outstanding, holders of our common stock are entitled to dividends when and if declared by our board of directors.
 
Warrants.  We may issue warrants for the purchase of common stock or debt securities in one or more series, from time to time. We may issue warrants independently or together with common stock or debt securities, and the warrants may be attached to or separate from these securities. In this prospectus, we have summarized certain general features of the warrants. We urge you, however, to read the prospectus supplement related to any series of warrants being offered, as well as the warrant agreements that contain the terms of the warrants. Forms of the warrant agreements and forms of warrants containing the terms of the warrants being offered have been filed as exhibits to the registration statement of which this prospectus is a part, and supplemental agreements and forms of warrants containing the terms of the warrants being offered will be filed as exhibits to the registration statement of which this prospectus is a part or will be incorporated by reference from reports we file with the SEC.
 
We will evidence each series of warrants by warrant certificates that we will issue under a separate agreement. We will enter into the warrant agreements with a warrant agent. Each warrant agent will be a bank that we select. We will state the name and address of the warrant agent in the applicable prospectus supplement relating to a particular series of warrants.
 
Debt Securities.  We may offer debt securities from time to time, in one or more series, as either senior or subordinated debt or as senior or subordinated convertible debt. The senior debt securities will rank equally with any other unsecured and unsubordinated debt. The subordinated debt securities will be subordinate and junior in right of payment, to the extent and in the manner described in the instrument governing the debt, to all of our senior indebtedness. Convertible debt securities will be convertible into or exchangeable for our common stock or our other securities. Conversion may be mandatory or at the lender’s option and would be at prescribed conversion rates.
 
The debt securities will be issued under one or more documents called indentures, which are contracts between us and a national banking association, as trustee. In this prospectus, we have summarized certain general features of the debt securities. We urge you, however, to read the prospectus supplement related to the series of debt securities being offered, as well as the complete indentures that contain the terms of the debt securities. Indentures have been


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filed as exhibits to the registration statement of which this prospectus is a part, and supplemental indentures and forms of debt securities containing the terms of debt securities being offered will be filed as exhibits to the registration statement of which this prospectus is a part or will be incorporated by reference from reports we file with the SEC.
 
RATIO OF EARNINGS TO FIXED CHARGES
 
The following table sets forth our ratio of earnings to fixed charges for the periods indicated:
 
                                                 
                        Six Months
                        Ended
    Fiscal Year Ended December 31,   June 30,
    2002   2003   2004   2005   2006   2007
 
Ratio of earnings to fixed charges
                                   
 
For the purpose of this table, “earnings” consist of income (loss) from continuing operations before income taxes, extraordinary items, cumulative effect of accounting changes, equity in net losses of affiliates and fixed charges and “fixed charges” consist of interest expense and the portion of operating lease expense that represents interest. For the fiscal years ended December 31, 2002, 2003, 2004, 2005 and 2006, and the six months ended June 30, 2007, we had no earnings. Our earnings for those periods were insufficient to cover fixed charges by $206.3 million, $65.9 million, $76.0 million, $114.3 million, $228.8 million and $143.1 million, respectively.


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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
 
Statements contained in this prospectus, in the documents incorporated by reference herein and in any prospectus supplement that are not strictly historical in nature are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. These forward-looking statements are subject to the “safe harbor” created by Section 27A of the Securities Act and Section 21E of the Exchange Act and may include, but are not limited to, statements about:
 
  •  the progress or success of our research, development and clinical programs;
 
  •  the timing of completion of enrollment in our clinical trials, the timing of the interim analyses and the timing or success of the commercialization of our Technosphere Insulin System, or any other products or therapies that we may develop;
 
  •  our ability to market, commercialize and achieve market acceptance for our Technosphere Insulin System, or any other products or therapies that we may develop;
 
  •  our ability to protect our intellectual property and operate our business without infringing upon the intellectual property rights of others;
 
  •  our estimates for future performance; our estimates regarding anticipated operating losses, future revenues, capital requirements and our needs for additional financing;
 
  •  scientific studies and the conclusions we draw from them; and
 
  •  our ability to successfully enter into strategic business collaborations.
 
In some cases, you can identify forward-looking statements by terms such as “anticipates,” “believes,” “could,” “estimates,” “expects,” “goal,” “intends,” “may,” “plans,” “potential,” “predicts,” “projects,” “should,” “will,” “would,” the negative of these words and words or similar expressions intended to identify forward-looking statements. These statements reflect our views as of the date on which they were made with respect to future events and are based on assumptions and subject to risks and uncertainties. The underlying information and expectations are likely to change over time. Given these uncertainties, you should not place undue reliance on these forward-looking statements as actual events or results may differ materially from those projected in the forward-looking statements due to various factors, including, but not limited to, those set forth under the heading “Risk Factors” in any applicable prospectus supplement and in our SEC filings. These forward-looking statements represent our estimates and assumptions only as of the date of the document containing the applicable statement.
 
You should rely only on the information contained, or incorporated by reference, in this prospectus, the registration statement of which this prospectus is a part, the documents incorporated by reference herein, and any applicable prospectus supplement and understand that our actual future results may be materially different from what we expect. We qualify all of the forward-looking statements in the foregoing documents by these cautionary statements. Unless required by law, we undertake no obligation to update or revise any forward-looking statements to reflect new information or future events or developments. Thus, you should not assume that our silence over time means that actual events are bearing out as expressed or implied in such forward-looking statements. Before deciding to purchase our securities, you should carefully consider the risk factors discussed here or incorporated by reference, in addition to the other information set forth in this prospectus, any accompanying prospectus supplement and in the documents incorporated by reference.
 
USE OF PROCEEDS
 
Except as described in any prospectus supplement, we currently intend to use the net proceeds from the sale of the securities offered hereby to fund the costs of our clinical trials program and other research and development activities and expand our manufacturing operations, both on-going and planned, and for general corporate purposes, including working capital and repayment of outstanding indebtedness. We may also use a portion of the net proceeds to in-license, invest in or acquire businesses or technologies that we believe are complementary to our own, although we have no current plans, commitments or agreements with respect to any acquisitions as of the date


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of this prospectus other than our agreement to license certain technology from the Technion Research and Development Foundation Ltd, an Israeli corporation affiliated with the Technion-Israel Institute of Technology. Pending these uses, we intend to invest the net proceeds in investment-grade, interest-bearing securities.
 
DESCRIPTION OF COMMON STOCK
 
Our authorized capital stock consists of 150,000,000 shares of common stock, $0.01 par value, and 10,000,000 shares of preferred stock, $0.01 par value. As of June 30, 2007, there were 73,485,839 shares of common stock outstanding and no shares of preferred stock outstanding.
 
Voting Rights
 
Each holder of our common stock is entitled to one vote for each share on all matters submitted to a vote of our stockholders, including the election of our directors. Under our certificate of incorporation and bylaws, our stockholders will not have cumulative voting rights. Accordingly, the holders of a majority of our outstanding shares of common stock entitled to vote in any election of directors can elect all of the directors standing for election, if they should so choose. In all other matters, an action by our common stockholders requires the affirmative vote of the holders of a majority of our outstanding shares of common stock entitled to vote.
 
Dividends
 
Subject to preferences that may be applicable to any outstanding shares of our preferred stock, holders of our common stock are entitled to receive ratably any dividends our board of directors declares out of funds legally available for that purpose. Any dividends on our common stock will be non-cumulative.
 
Liquidation, Dissolution or Winding Up
 
If we liquidate, dissolve or wind up, the holders of our common stock are entitled to share ratably in all assets legally available for distribution to our stockholders after the payment of all of our debts and other liabilities and the satisfaction of any liquidation preference granted to the holders of any outstanding shares of our preferred stock.
 
Rights and Preferences
 
Our common stock has no preemptive, conversion or subscription rights. There are no redemption or sinking fund provisions applicable to our common stock. The rights, preferences and privileges of the holders of our common stock are subject to, and may be adversely affected by, the rights of the holders of any outstanding shares of our of preferred stock, which we may designate and issue in the future.
 
Anti-Takeover Effects of Provisions of Delaware Law and Our Certificate of Incorporation and Bylaws
 
Delaware takeover statute
 
We are subject to Section 203 of the Delaware General Corporation Law, or DGCL, which regulates acquisitions of some Delaware corporations. In general, Section 203 prohibits, with some exceptions, a publicly held Delaware corporation from engaging in a “business combination” with an “interested stockholder” for a period of three years following the date of the transaction in which the person became an interested stockholder, unless:
 
  •  the board of directors of the corporation approved the business combination or the other transaction in which the person became an interested stockholder prior to the date of the business combination or other transaction;
 
  •  upon consummation of the transaction that resulted in the person becoming an interested stockholder, the person owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding shares owned by persons who are directors and also officers of the corporation and shares issued under employee stock plans under which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or


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  •  on or subsequent to the date the person became an interested stockholder, the board of directors of the corporation approved the business combination and the stockholders of the corporation authorized the business combination at an annual or special meeting of stockholders by the affirmative vote of at least 662/3% of the outstanding stock of the corporation not owned by the interested stockholder.
 
Section 203 of the DGCL generally defines a “business combination” to include any of the following:
 
  •  any merger or consolidation involving the corporation and the interested stockholder;
 
  •  any sale, transfer, pledge or other disposition of 10% or more of the corporation’s assets or outstanding stock involving the interested stockholder;
 
  •  in general, any transaction that results in the issuance or transfer by the corporation of any of its stock to the interested stockholder;
 
  •  any transaction involving the corporation that has the effect of increasing the proportionate share of its stock owned by the interested stockholder; or
 
  •  the receipt by the interested stockholder of the benefit of any loans, advances, guarantees, pledges or other financial benefits provided by or through the corporation.
 
In general, Section 203 defines an “interested stockholder” as any person who, together with the person’s affiliates and associates, owns, or within three years prior to the determination of interested stockholder status did own, 15% or more of a corporation’s voting stock.
 
Section 203 of the DGCL could depress our stock price and delay, discourage or prohibit transactions not approved in advance by our board of directors, such as takeover attempts that might otherwise involve the payment to our stockholders of a premium over the market price of our common stock.
 
Certificate of incorporation and bylaw provisions
 
Our certificate of incorporation and bylaws include a number of provisions that may have the effect of deterring hostile takeovers or delaying or preventing changes in our control or our management, including, but not limited to the following:
 
  •  Our board of directors can issue up to 10,000,000 shares of preferred stock with any rights or preferences, including the right to approve or not approve an acquisition or other change in our control.
 
  •  Our certificate of incorporation provides that all stockholder actions must be effected at a duly called meeting of holders and not by written consent.
 
  •  Our bylaws provide that special meetings of the stockholders may be called only by the Chairman of our board of directors, by our Chief Executive Officer, by our board of directors upon a resolution adopted by a majority of the total number of authorized directors or, under certain limited circumstances, by the holders of at least 5% of our outstanding voting stock.
 
  •  Our bylaws provide that stockholders seeking to present proposals before a meeting of stockholders or to nominate candidates for election as directors at a meeting of stockholders must provide timely notice in writing and also specify requirements as to the form and content of a stockholder’s notice. These provisions may delay or preclude stockholders from bringing matters before a meeting of our stockholders or from making nominations for directors at a meeting of stockholders, which could delay or deter takeover attempts or changes in our management.
 
  •  Our certificate of incorporation provides that, subject to the rights of the holders of any outstanding series of preferred stock, all vacancies, including newly created directorships, may, except as otherwise required by law, be filled by the affirmative vote of a majority of directors then in office, even if less than a quorum. In addition, our certificate of incorporation provides that our board of directors may fix the number of directors by resolution.
 
  •  Our certificate of incorporation does not provide for cumulative voting for directors. The absence of cumulative voting may make it more difficult for stockholders who own an aggregate of less than a majority of our voting stock to elect any directors to our board of directors.


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These and other provisions contained in our certificate of incorporation and bylaws are expected to discourage coercive takeover practices and inadequate takeover bids. These provisions are also designed to encourage persons seeking to acquire control of us to first negotiate with our board of directors. However, these provisions could delay or discourage transactions involving an actual or potential change in control of us or our management, including transactions in which our stockholders might otherwise receive a premium for their shares over market price of our stock and may limit the ability of stockholders to remove our current management or approve transactions that our stockholders may deem to be in their best interests and, therefore, could adversely affect the price of our common stock.
 
Transfer Agent and Registrar
 
The transfer agent and registrar for our common stock is Mellon Investor Services. Mellon Investor Services’ address is 400 South Hope Street, Suite 400, Los Angeles, California 90071.
 
DESCRIPTION OF WARRANTS
 
The following description, together with the additional information we include in any applicable prospectus supplement, summarizes the material terms and provisions of the warrants that we may offer under this prospectus, which may consist of warrants to purchase common stock or debt securities and may be issued in one or more series. Warrants may be offered independently or together with common stock or debt securities offered by any prospectus supplement, and may be attached to or separate from those securities. While the terms we have summarized below will generally apply to any future warrants we may offer under this prospectus, we will describe the particular terms of any warrants that we may offer in more detail in the applicable prospectus supplement. The terms of any warrants we offer under a prospectus supplement may differ from the terms we describe below.
 
We will issue the warrants under a warrant agreement which we will enter into with a warrant agent to be selected by us. We have filed forms of the warrant agreements and the related warrant certificates for each type of warrant we may offer under this prospectus as exhibits to the registration statement of which this prospectus is a part. We use the term “warrant agreement” to refer to any of these warrant agreements. We use the term “warrant agent” to refer to the warrant agent under any of these warrant agreements. The warrant agent will act solely as an agent of ours in connection with the warrants and will not act as an agent for the holders or beneficial owners of the warrants.
 
The following summaries of material provisions of the warrants and the warrant agreements are subject to, and qualified in their entirety by reference to, all the provisions of the warrant agreement applicable to a particular series of warrants. We urge you to read the applicable prospectus supplement related to the warrants that we sell under this prospectus, as well as the complete warrant agreements that contain the terms of the warrants.
 
General
 
We will describe in the applicable prospectus supplement the terms relating to a series of warrants.
 
If warrants for the purchase of common stock are offered, the applicable prospectus supplement will describe the following terms, to the extent applicable:
 
  •  the offering price and the aggregate number of warrants offered;
 
  •  the total number of shares that can be purchased if a holder of the warrants exercises them;
 
  •  the number of shares of common stock that can be purchased if a holder exercises the warrant and the price at which such common stock may be purchased upon exercise, including, if applicable, any provisions for changes to or adjustments in the exercise price and in the securities or other property receivable upon exercise;
 
  •  the terms of any rights to redeem or call, or accelerate the expiration of, the warrants;
 
  •  the date on which the right to exercise the warrants begins and the date on which that right expires;


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  •  certain federal income tax consequences of holding or exercising the warrants; and
 
  •  any other specific terms, preferences, rights or limitations of, or restrictions on, the warrants.
 
If warrants for the purchase of debt securities are offered, the applicable prospectus supplement will describe the following terms, to the extent applicable:
 
  •  the offering price and the aggregate number of warrants offered;
 
  •  the currencies in which the warrants are being offered;
 
  •  the designation, denominations and terms of the series of debt securities that can be purchased if a holder exercises a warrant;
 
  •  the principal amount of the series of debt securities that can be purchased if a holder exercises a warrant and the price at which and currencies in which such principal amount may be purchased upon exercise;
 
  •  the terms of any rights to redeem or call the warrants;
 
  •  the date on which the right to exercise the warrants begins and the date on which such right expires;
 
  •  certain federal income tax consequences of holding or exercising the warrants; and
 
  •  any other specific terms, preferences, rights or limitations of, or restrictions on, the warrants.
 
Warrants will be in registered form only.
 
If the warrants are offered attached to common stock or debt securities, the applicable prospectus supplement will also describe the date on and after which the holder of the warrants can transfer them separately from the related common stock or debt securities.
 
A holder of warrant certificates may exchange them for new certificates of different denominations, present them for registration of transfer and exercise them at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement. Until any warrants to purchase common stock are exercised, holders of the warrants will not have any rights of holders of the underlying common stock, including any rights to receive dividends or to exercise any voting rights, except to the extent set forth under “Warrant Adjustments” below. Until any warrants to purchase debt securities are exercised, the holder of the warrants will not have any of the rights of holders of the debt securities that can be purchased upon exercise, including any rights to receive payments of principal, premium or interest on the underlying debt securities or to enforce covenants in the applicable indenture.
 
Exercise of Warrants
 
Each holder of a warrant is entitled to purchase the number of shares of common stock or principal amount of debt securities at the exercise price described in the applicable prospectus supplement. After the close of business on the day when the right to exercise terminates (or a later date if we extend the time for exercise), unexercised warrants will become void.
 
A holder of warrants may exercise them by following the general procedure outlined below:
 
  •  delivering to the warrant agent the payment required by the applicable prospectus supplement to purchase the underlying security;
 
  •  properly completing and signing the reverse side of the warrant certificate representing the warrants; and
 
  •  delivering the warrant certificate representing the warrants to the warrant agent within five business days of the warrant agent receiving payment of the exercise price.
 
If you comply with the procedures described above, your warrants will be considered to have been exercised when the warrant agent receives payment of the exercise price, subject to the transfer books for the securities issuable upon exercise of the warrant not being closed on such date. After you have completed those procedures and subject to the foregoing, we will, as soon as practicable, issue and deliver to you the common stock or debt securities


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that you purchased upon exercise. If you exercise fewer than all of the warrants represented by a warrant certificate, a new warrant certificate will be issued to you for the unexercised amount of warrants. Holders of warrants will be required to pay any tax or governmental charge that may be imposed in connection with transferring the underlying securities in connection with the exercise of the warrants.
 
Amendments and Supplements to the Warrant Agreements
 
We may amend or supplement a warrant agreement without the consent of the holders of the applicable warrants to cure ambiguities in the warrant agreement, to cure or correct a defective provision in the warrant agreement, or to provide for other matters under the warrant agreement that we and the warrant agent deem necessary or desirable, so long as, in each case, such amendments or supplements do not materially adversely affect the interests of the holders of the warrants.
 
Warrant Adjustments
 
Unless the applicable prospectus supplement states otherwise, the exercise price of, and the number of securities covered by, a common stock warrant will be adjusted proportionately if we subdivide or combine our common stock. In addition, unless the applicable prospectus supplement states otherwise, if we without receiving payment:
 
  •  issue capital stock or other securities convertible into or exchangeable for common stock, or any rights to subscribe for, purchase or otherwise acquire any of the foregoing, as a dividend or distribution to holders of our common stock;
 
  •  issue any evidence of our indebtedness or rights to subscribe for or purchase our indebtedness to holders of our common stock; or
 
  •  issue common stock or additional stock or other securities or property to holders of our common stock by way of spinoff, split-up, reclassification, combination of shares or similar corporate rearrangement,
 
then the holders of common stock warrants will be entitled to receive upon exercise of the warrants, in addition to the securities otherwise receivable upon exercise of the warrants and without paying any additional consideration, the amount of stock and other securities and property such holders would have been entitled to receive had they held the common stock issuable under the warrants on the dates on which holders of those securities received or became entitled to receive such additional stock and other securities and property.
 
Except as stated above, the exercise price and number of securities covered by a common stock warrant and the amounts of other securities or property to be received, if any, upon exercise of those warrants, will not be adjusted or provided for if we issue those securities or any securities convertible into or exchangeable for those securities, or securities carrying the right to purchase those securities or securities convertible into or exchangeable for those securities.
 
Holders of common stock warrants may have additional rights under the following circumstances:
 
  •  certain reclassifications, capital reorganizations or changes of the common stock;
 
  •  certain share exchanges, mergers, or similar transactions involving us and which result in changes of the common stock; or
 
  •  certain sales or dispositions to another entity of all or substantially all of our property and assets.
 
If one of the above transactions occurs and holders of our common stock are entitled to receive stock, securities or other property with respect to or in exchange for their securities, the holders of the common stock warrants then outstanding will be entitled to receive upon exercise of their warrants the kind and amount of shares of stock and other securities or property that they would have received upon the applicable transaction if they had exercised their warrants immediately before the transaction.


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DESCRIPTION OF DEBT SECURITIES
 
The following description, together with the additional information we include in any applicable prospectus supplement, summarizes the material terms and provisions of the debt securities that we may offer under this prospectus. While the terms we have summarized below will apply generally to any future debt securities we may offer under this prospectus, we will describe the particular terms of any debt securities that we may offer in more detail in the applicable prospectus supplement. The terms of any debt securities we offer under a prospectus supplement may differ from the terms we describe below. However, no prospectus supplement shall fundamentally change the terms that are set forth in this prospectus or offer a security that is not registered and described in this prospectus at the time of its effectiveness.
 
We will issue the senior debt securities under the senior indenture that we will enter into with the trustee named in the senior indenture. We will issue the subordinated debt securities under the subordinated indenture that we will enter into with the trustee named in the subordinated indenture. We have filed forms of these documents as exhibits to the registration statement which includes this prospectus. We use the term “indentures” in this prospectus to refer to both the senior indenture and the subordinated indenture.
 
The indentures will be qualified under the Trust Indenture Act of 1939, as amended, or Trust Indenture Act. We use the term “debenture trustee” to refer to either the trustee under the senior indenture or the trustee under the subordinated indenture, as applicable.
 
The following summaries of material provisions of the senior debt securities, the subordinated debt securities and the indentures are subject to, and qualified in their entirety by reference to, all the provisions of the indenture applicable to a particular series of debt securities. We urge you to read the applicable prospectus supplements related to the debt securities that we sell under this prospectus, as well as the indenture that contains the terms of the debt securities. Except as we may otherwise indicate, the terms of the senior indenture and the subordinated indenture are identical.
 
General
 
We will describe in each applicable prospectus supplement the terms relating to a series of debt securities, including:
 
  •  the title;
 
  •  the principal amount being offered, and if a series, the total amount authorized and the total amount outstanding;
 
  •  any limit on the amount that may be issued;
 
  •  whether or not we will issue the series of debt securities in global form, the terms and who the depositary will be;
 
  •  the maturity date;
 
  •  whether and under what circumstances, if any, we will pay additional amounts on any debt securities held by a person who is not a United States person for tax purposes, and whether we can redeem the debt securities if we have to pay such additional amounts;
 
  •  the annual interest rate, which may be fixed or variable, or the method for determining the rate and the date interest will begin to accrue, the dates interest will be payable and the regular record dates for interest payment dates or the method for determining such dates;
 
  •  whether or not the debt securities will be secured or unsecured, and the terms of any secured debt;
 
  •  the terms of the subordination of any series of subordinated debt;
 
  •  the place where payments will be payable;
 
  •  restrictions on transfer, sale or other assignment, if any;


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  •  our right, if any, to defer payment of interest and the maximum length of any such deferral period;
 
  •  the date, if any, after which, and the price at which, we may, at our option, redeem the series of debt securities pursuant to any optional or provisional redemption provisions and the terms of those redemptions provisions;
 
  •  the date, if any, on which, and the price at which we are obligated, pursuant to any mandatory sinking fund or analogous fund provisions or otherwise, to redeem, or at the holder’s option to purchase, the series of debt securities and the currency or currency unit in which the debt securities are payable;
 
  •  whether the indenture will restrict our ability or the ability of our subsidiaries to:
 
  •  incur additional indebtedness;
 
  •  issue additional securities;
 
  •  create liens;
 
  •  pay dividends or make distributions in respect of our capital stock or the capital stock of our subsidiaries;
 
  •  redeem capital stock;
 
  •  place restrictions on our subsidiaries’ ability to pay dividends, make distributions or transfer assets;
 
  •  make investments or other restricted payments;
 
  •  sell or otherwise dispose of assets;
 
  •  enter into sale-leaseback transactions;
 
  •  engage in transactions with stockholders or affiliates;
 
  •  issue or sell stock of our subsidiaries; or
 
  •  effect a consolidation or merger;
 
  •  whether the indenture will require us to maintain any interest coverage, fixed charge, cash flow-based, asset-based or other financial ratios;
 
  •  a discussion of certain material or special United States federal income tax considerations applicable to the debt securities;
 
  •  information describing any book-entry features;
 
  •  provisions for a sinking fund purchase or other analogous fund, if any;
 
  •  whether the debt securities are to be offered at a price such that they will be deemed to be offered at an “original issue discount” as defined in paragraph (a) of Section 1273 of the Internal Revenue Code;
 
  •  the denominations in which we will issue the series of debt securities, if other than denominations of $1,000 and any integral multiple thereof; and
 
  •  any other specific terms, preferences, rights or limitations of, or restrictions on, the debt securities, including any additional events of default or covenants provided with respect to the debt securities, and any terms that may be required by us or advisable under applicable laws or regulations.
 
Conversion or Exchange Rights
 
We will set forth in the applicable prospectus supplement the terms on which a series of debt securities may be convertible into or exchangeable for our common stock or our other securities. We will include provisions as to whether conversion or exchange is mandatory, at the option of the holder or at our option. We may include provisions pursuant to which the number of shares of our common stock or our other securities that the holders of the series of debt securities receive would be subject to adjustment.


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Consolidation, Merger or Sale
 
The indentures do not contain any covenant that restricts our ability to merge or consolidate, or sell, convey, transfer or otherwise dispose of all or substantially all of our assets. However, any successor to or acquiror of such assets must assume all of our obligations under the indentures or the debt securities, as appropriate. If the debt securities are convertible for our other securities or securities of other entities, the person with whom we consolidate or merge or to whom we sell all of our property must make provisions for the conversion of the debt securities into securities that the holders of the debt securities would have received if they had converted the debt securities before the consolidation, merger or sale.
 
Events of Default Under the Indenture
 
The following are events of default under the indentures with respect to any series of debt securities that we may issue:
 
  •  if we fail to pay interest when due and payable and our failure continues for 90 days and the time for payment has not been extended or deferred;
 
  •  if we fail to pay the principal, premium or sinking fund payment, if any, when due and payable and the time for payment has not been extended or delayed;
 
  •  if we fail to observe or perform any other covenant contained in the debt securities or the indentures, other than a covenant specifically relating to another series of debt securities, and our failure continues for 90 days after we receive notice from the debenture trustee or holders of at least 25% in aggregate principal amount of the outstanding debt securities of the applicable series; and
 
  •  if specified events of bankruptcy, insolvency or reorganization occur.
 
If an event of default with respect to debt securities of any series occurs and is continuing, other than an event of default specified in the last bullet point above, the debenture trustee or the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series, by notice to us in writing, and to the debenture trustee if notice is given by such holders, may declare the unpaid principal of, premium, if any, and accrued interest, if any, due and payable immediately. If an event of default specified in the last bullet point above occurs with respect to us, the principal amount of and accrued interest, if any, of each issue of debt securities then outstanding shall be due and payable without any notice or other action on the part of the debenture trustee or any holder.
 
The holders of a majority in principal amount of the outstanding debt securities of an affected series may waive any default or event of default with respect to the series and its consequences, except defaults or events of default regarding payment of principal, premium, if any, or interest, unless we have cured the default or event of default in accordance with the indenture. Any waiver shall cure the default or event of default.
 
Subject to the terms of the indentures, if an event of default under an indenture shall occur and be continuing, the debenture trustee will be under no obligation to exercise any of its rights or powers under such indenture at the request or direction of any of the holders of the applicable series of debt securities, unless such holders have offered the debenture trustee reasonable indemnity. The holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the debenture trustee, or exercising any trust or power conferred on the debenture trustee, with respect to the debt securities of that series, provided that:
 
  •  the direction so given by the holder is not in conflict with any law or the applicable indenture; and
 
  •  subject to its duties under the Trust Indenture Act, the debenture trustee need not take any action that might involve it in personal liability or might be unduly prejudicial to the holders not involved in the proceeding.
 
A holder of the debt securities of any series will only have the right to institute a proceeding under the indentures or to appoint a receiver or trustee, or to seek other remedies if:
 
  •  the holder has given written notice to the debenture trustee of a continuing event of default with respect to that series;


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  •  the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series have made written request, and such holders have offered reasonable indemnity to the debenture trustee to institute the proceeding as trustee; and
 
  •  the debenture trustee does not institute the proceeding, and does not receive from the holders of a majority in aggregate principal amount of the outstanding debt securities of that series other conflicting directions within 90 days after the notice, request and offer.
 
These limitations do not apply to a suit instituted by a holder of debt securities if we default in the payment of the principal, premium, if any, or interest on, the debt securities.
 
We will periodically file statements with the debenture trustee regarding our compliance with specified covenants in the indentures.
 
Modification of Indenture; Waiver
 
We and the debenture trustee may change an indenture without the consent of any holders with respect to specific matters:
 
  •  to fix any ambiguity, defect or inconsistency in the indenture;
 
  •  to comply with the provisions described above under “Consolidation, Merger or Sale”;
 
  •  to comply with any requirements of the SEC in connection with the qualification of any indenture under the Trust Indenture Act;
 
  •  to add to, delete from or revise the conditions, limitations, and restrictions on the authorized amount, terms, or purposes of issue, authentication and delivery of debt securities, as set forth in the indenture;
 
  •  to provide for the issuance of and establish the form and terms and conditions of the debt securities of any series as provided under “General”, to establish the form of any certifications required to be furnished pursuant to the terms of the indenture or any series of debt securities, or to add to the rights of the holders of any series of debt securities;
 
  •  to evidence and provide for the acceptance of appointment hereunder by a successor trustee;
 
  •  to provide for uncertificated debt securities and to make all appropriate changes for such purpose;
 
  •  to add to our covenants such new covenants, restrictions, conditions or provisions for the protection of the holders, and to make the occurrence, or the occurrence and the continuance, of a default in any such additional covenants, restrictions, conditions or provisions an event of default; or
 
  •  to change anything that does not materially adversely affect the interests of any holder of debt securities of any series.
 
In addition, under the indentures, the rights of holders of a series of debt securities may be changed by us and the debenture trustee with the written consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of each series that is affected. However, we and the debenture trustee may only make the following changes with the consent of each holder of any outstanding debt securities affected:
 
  •  extending the fixed maturity of the series of debt securities;
 
  •  reducing the principal amount, reducing the rate of or extending the time of payment of interest, or reducing any premium payable upon the redemption of any debt securities; or
 
  •  reducing the percentage of debt securities, the holders of which are required to consent to any amendment, supplement, modification or waiver.


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Discharge
 
Each indenture provides that we can elect to be discharged from our obligations with respect to one or more series of debt securities, except for specified obligations, including obligations to:
 
  •  register the transfer or exchange of debt securities of the series;
 
  •  replace stolen, lost or mutilated debt securities of the series;
 
  •  maintain paying agencies;
 
  •  hold monies for payment in trust;
 
  •  recover excess money held by the debenture trustee;
 
  •  compensate and indemnify the debenture trustee; and
 
  •  appoint any successor trustee.
 
In order to exercise our rights to be discharged, we must deposit with the debenture trustee money or government obligations sufficient to pay all the principal of, any premium and interest on, the debt securities of the series on the dates payments are due.
 
Form, Exchange and Transfer
 
We will issue the debt securities of each series only in fully registered form without coupons and, unless we otherwise specify in the applicable prospectus supplement, in denominations of $1,000 and any integral multiple thereof. The indentures provide that we may issue debt securities of a series in temporary or permanent global form and as book-entry securities that will be deposited with, or on behalf of, The Depository Trust Company or another depositary named by us and identified in a prospectus supplement with respect to that series. See “Legal Ownership of Securities” for a further description of the terms relating to any book-entry securities.
 
At the option of the holder, subject to the terms of the indentures and the limitations applicable to global securities described in the applicable prospectus supplement, the holder of the debt securities of any series can exchange the debt securities for other debt securities of the same series, in any authorized denomination and of like tenor and aggregate principal amount.
 
Subject to the terms of the indentures and the limitations applicable to global securities set forth in the applicable prospectus supplement, holders of the debt securities may present the debt securities for exchange or for registration of transfer, duly endorsed or with the form of transfer endorsed thereon duly executed if so required by us or the security registrar, at the office of the security registrar or at the office of any transfer agent designated by us for this purpose. Unless otherwise provided in the debt securities that the holder presents for transfer or exchange, we will make no service charge for any registration of transfer or exchange, but we may require payment of any taxes or other governmental charges.
 
We will name in the applicable prospectus supplement the security registrar, and any transfer agent in addition to the security registrar, that we initially designate for any debt securities. We may at any time designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for the debt securities of each series.
 
If we elect to redeem the debt securities of any series, we will not be required to:
 
  •  issue, register the transfer of, or exchange any debt securities of that series during a period beginning at the opening of business 15 days before the day of mailing of a notice of redemption of any debt securities that may be selected for redemption and ending at the close of business on the day of the mailing; or
 
  •  register the transfer of or exchange any debt securities so selected for redemption, in whole or in part, except the unredeemed portion of any debt securities we are redeeming in part.


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Information Concerning the Debenture Trustee
 
The debenture trustee, other than during the occurrence and continuance of an event of default under an indenture, undertakes to perform only those duties as are specifically set forth in the applicable indenture. Upon an event of default under an indenture, the debenture trustee must use the same degree of care as a prudent person would exercise or use in the conduct of his or her own affairs. Subject to this provision, the debenture trustee is under no obligation to exercise any of the powers given it by the indentures at the request of any holder of debt securities unless it is offered reasonable security and indemnity against the costs, expenses and liabilities that it might incur.
 
Payment and Paying Agents
 
Unless we otherwise indicate in the applicable prospectus supplement, we will make payment of the interest on any debt securities on any interest payment date to the person in whose name the debt securities, or one or more predecessor securities, are registered at the close of business on the regular record date for the interest.
 
We will pay principal of and any premium and interest on the debt securities of a particular series at the office of the paying agents designated by us, except that unless we otherwise indicate in the applicable prospectus supplement, we will make interest payments by check that we will mail to the holder or by wire transfer to certain holders. Unless we otherwise indicate in a prospectus supplement, we will designate the corporate trust office of the debenture trustee in the City of New York as our sole paying agent for payments with respect to debt securities of each series. We will name in the applicable prospectus supplement any other paying agents that we initially designate for the debt securities of a particular series. We will maintain a paying agent in each place of payment for the debt securities of a particular series.
 
All money we pay to a paying agent or the debenture trustee for the payment of the principal of or any premium or interest on any debt securities that remains unclaimed at the end of two years after such principal, premium or interest has become due and payable will be repaid to us, and the holder of the debt security thereafter may look only to us for payment thereof.
 
Governing Law
 
The indentures and the debt securities will be governed by and construed in accordance with the laws of the State of New York, except to the extent that the Trust Indenture Act is applicable.
 
Subordination of Subordinated Debt Securities
 
The subordinated debt securities will be unsecured and will be subordinate and junior in priority of payment to certain of our other indebtedness to the extent described in a prospectus supplement. The subordinated indenture does not limit the amount of subordinated debt securities that we may issue. It also does not limit us from issuing any other secured or unsecured debt.
 
LEGAL OWNERSHIP OF SECURITIES
 
We can issue securities in registered form or in the form of one or more global securities. We describe global securities in greater detail below. We refer to those persons who have securities registered in their own names on the books that we or any applicable trustee maintain for this purpose as the “holders” of those securities. These persons are the legal holders of the securities. We refer to those persons who, indirectly through others, own beneficial interests in securities that are not registered in their own names, as “indirect holders” of those securities.
 
As we discuss below, indirect holders are not legal holders, and investors in securities issued in book-entry form or in street name will be indirect holders.
 
Book-Entry Holders
 
We may issue securities in book-entry form only, as we will specify in the applicable prospectus supplement. This means securities may be represented by one or more global securities registered in the name of a financial institution that holds them as depositary on behalf of other financial institutions that participate in the depositary’s


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book-entry system. These participating institutions, which are referred to as participants, in turn hold beneficial interests in the securities on behalf of themselves or their customers.
 
Only the person in whose name a security is registered is recognized as the holder of that security. Securities issued in global form will be registered in the name of the depositary or its participants. Consequently, for securities issued in global form, we will recognize only the depositary as the holder of the securities, and we will make all payments on the securities to the depositary. The depositary passes along the payments it receives to its participants, which in turn pass the payments along to their customers who are the beneficial owners. The depositary and its participants do so under agreements they have made with one another or with their customers; they are not obligated to do so under the terms of the securities.
 
As a result, investors in a book-entry security will not own securities directly. Instead, they will own beneficial interests in a global security, through a bank, broker or other financial institution that participates in the depositary’s book-entry system or holds an interest through a participant. As long as the securities are issued in global form, investors will be indirect holders, and not legal holders, of the securities.
 
Street Name Holders
 
We may terminate a global security or issue securities in non-global form. In these cases, investors may choose to hold their securities in their own names or in “street name.” Securities held by an investor in street name would be registered in the name of a bank, broker or other financial institution that the investor chooses, and the investor would hold only a beneficial interest in those securities through an account he or she maintains at that institution.
 
For securities held in street name, we will recognize only the intermediary banks, brokers and other financial institutions in whose names the securities are registered as the holders of those securities, and we will make all payments on those securities to them. These institutions pass along the payments they receive to their customers who are the beneficial owners, but only because they agree to do so in their customer agreements or because they are legally required to do so. Investors who hold securities in street name will be indirect holders, not legal holders, of those securities.
 
Legal Holders
 
Our obligations, as well as the obligations of any applicable trustee and of any third parties employed by us or a trustee, run only to the legal holders of the securities. We do not have obligations to investors who hold beneficial interests in global securities, in street name or by any other indirect means. This will be the case whether an investor chooses to be an indirect holder of a security or has no choice because we are issuing the securities only in global form.
 
For example, once we make a payment or give a notice to the holder, we have no further responsibility for the payment or notice even if that holder is required, under agreements with depositary participants or customers or by law, to pass it along to the indirect holders but does not do so. Similarly, we may want to obtain the approval of the holders to amend an indenture, to relieve us of the consequences of a default or of our obligation to comply with a particular provision of the indenture or for other purposes. In such an event, we would seek approval only from the legal holders, and not the indirect holders, of the securities. Whether and how the holders contact the indirect holders is up to the legal holders.
 
Special Considerations for Indirect Holders
 
If you hold securities through a bank, broker or other financial institution, either in book-entry form or in street name, you should check with your own institution to find out:
 
  •  how it handles securities payments and notices;
 
  •  whether it imposes fees or charges;
 
  •  how it would handle a request for the holders’ consent, if ever required;


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  •  whether and how you can instruct it to send you securities registered in your own name so you can be a holder, if that is permitted in the future;
 
  •  how it would exercise rights under the securities if there were a default or other event triggering the need for holders to act to protect their interests; and
 
  •  if the securities are in book-entry form, how the depositary’s rules and procedures will affect these matters.
 
Global Securities
 
A global security is a security that represents one or any other number of individual securities held by a depositary. Generally, all securities represented by the same global securities will have the same terms.
 
Each security issued in book-entry form will be represented by a global security that we deposit with and register in the name of a financial institution or its nominee that we select. The financial institution that we select for this purpose is called the depositary. Unless we specify otherwise in the applicable prospectus supplement, The Depository Trust Company, New York, New York, known as DTC, will be the depositary for all securities issued in book-entry form.
 
A global security may not be transferred to or registered in the name of anyone other than the depositary, its nominee or a successor depositary, unless special termination situations arise. We describe those situations below under “Special Situations When a Global Security Will Be Terminated.” As a result of these arrangements, the depositary, or its nominee, will be the sole registered owner and legal holder of all securities represented by a global security, and investors will be permitted to own only beneficial interests in a global security. Beneficial interests must be held by means of an account with a broker, bank or other financial institution that in turn has an account with the depositary or with another institution that does. Thus, an investor whose security is represented by a global security will not be a legal holder of the security, but only an indirect holder of a beneficial interest in the global security.
 
If the prospectus supplement for a particular security indicates that the security will be issued in global form only, then the security will be represented by a global security at all times unless and until the global security is terminated. If termination occurs, we may issue the securities through another book-entry clearing system or decide that the securities may no longer be held through any book-entry clearing system.
 
Special Considerations for Global Securities
 
As an indirect holder, an investor’s rights relating to a global security will be governed by the account rules of the investor’s financial institution and of the depositary, as well as general laws relating to securities transfers. We do not recognize an indirect holder as a legal holder of securities and instead deal only with the depositary that holds the global security.
 
If securities are issued only in the form of a global security, an investor should be aware of the following:
 
  •  An investor cannot cause the securities to be registered in his or her name and cannot obtain non-global certificates for his or her interest in the securities, except in the special situations we describe below.
 
  •  An investor will be an indirect holder and must look to his or her own bank or broker for payments on the securities and protection of his or her legal rights relating to the securities, as we describe above.
 
  •  An investor may not be able to sell interests in the securities to some insurance companies and to other institutions that are required by law to own their securities in non-book-entry form.
 
  •  An investor may not be able to pledge his or her interest in a global security in circumstances where certificates representing the securities must be delivered to the lender or other beneficiary of the pledge in order for the pledge to be effective.
 
  •  The depositary’s policies, which may change from time to time, will govern payments, transfers, exchanges and other matters relating to an investor’s interest in a global security. We and any applicable trustee have no


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  responsibility for any aspect of the depositary’s actions or for its records of ownership interests in a global security. We and the trustee also do not supervise the depositary in any way.
 
  •  The depositary may, and we understand that DTC will, require that those who purchase and sell interests in a global security within its book-entry system use immediately available funds, and your broker or bank may require you to do so as well.
 
  •  Financial institutions that participate in the depositary’s book-entry system, and through which an investor holds its interest in a global security, may also have their own policies affecting payments, notices and other matters relating to the securities. There may be more than one financial intermediary in the chain of ownership for an investor. We do not monitor and are not responsible for the actions of any of those intermediaries.
 
Special Situations when a Global Security Will Be Terminated
 
In a few special situations described below, the global security will terminate, and interests in it will be exchanged for physical certificates representing those interests. After that exchange, the choice of whether to hold securities directly or in street name will be up to the investor. Investors must consult their own banks or brokers to find out how to have their interests in securities transferred to their own name, so that they will be direct holders. We have described the rights of holders and street name investors above.
 
The global security will terminate when the following special situations occur:
 
  •  if the depositary notifies us that it is unwilling, unable or no longer qualified to continue as depositary for that global security and we do not appoint another institution to act as depositary within 90 days;
 
  •  if we notify any applicable trustee that we wish to terminate that global security; or
 
  •  if an event of default has occurred with regard to securities represented by that global security and has not been cured or waived.
 
The applicable prospectus supplement may also list additional situations for terminating a global security that would apply only to the particular series of securities covered by the prospectus supplement. When a global security terminates, the depositary, and not we or any applicable trustee, is responsible for deciding the names of the institutions that will be the initial direct holders.
 
PLAN OF DISTRIBUTION
 
We may sell the common stock, warrants or debt securities to or through underwriters or dealers, through agents, or directly to one or more purchasers. A prospectus supplement or supplements will describe the terms of the offering of the securities, including:
 
  •  the name or names of any underwriters, if any;
 
  •  the purchase price of the securities and the proceeds we will receive from the sale;
 
  •  any over-allotment options under which underwriters may purchase additional securities from us;
 
  •  any agency fees or underwriting discounts and other items constituting agents’ or underwriters’ compensation;
 
  •  any public offering price;
 
  •  any discounts or concessions allowed or reallowed or paid to dealers; and
 
  •  any securities exchange or market on which the securities may be listed.
 
Only underwriters named in the prospectus supplement are underwriters of the securities offered by the prospectus supplement.


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If underwriters are used in the sale, they will acquire the securities for their own account and may resell the securities from time to time in one or more transactions at a fixed public offering price or at varying prices determined at the time of sale. The obligations of the underwriters to purchase the securities will be subject to the conditions set forth in the applicable underwriting agreement. We may offer the securities to the public through underwriting syndicates represented by managing underwriters or by underwriters without a syndicate. Subject to certain conditions, the underwriters will be obligated to purchase all of the securities offered by the prospectus supplement. Any public offering price and any discounts or concessions allowed or reallowed or paid to dealers may change from time to time. We may use underwriters with whom we have a material relationship. We will describe in the prospectus supplement, naming the underwriter, the nature of any such relationship.
 
We may sell securities directly or through agents we designate from time to time. We will name any agent involved in the offering and sale of securities and we will describe any commissions we will pay the agent in the prospectus supplement. Unless the prospectus supplement states otherwise, our agent will act on a best-efforts basis for the period of its appointment.
 
We may authorize agents or underwriters to solicit offers by certain types of institutional investors to purchase securities from us at the public offering price set forth in the prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on a specified date in the future. We will describe the conditions to these contracts and the commissions we must pay for solicitation of these contracts in the prospectus supplement.
 
We may provide agents and underwriters with indemnification against civil liabilities related to this offering, including liabilities under the Securities Act, or contribution with respect to payments that the agents or underwriters may make with respect to these liabilities. Agents and underwriters may engage in transactions with, or perform services for, us in the ordinary course of business.
 
All securities we offer, other than common stock, will be new issues of securities with no established trading market. Any underwriters may make a market in these securities, but will not be obligated to do so and may discontinue any market making at any time without notice. We cannot guarantee the liquidity of the trading markets for any securities.
 
Any underwriter may engage in overallotment, stabilizing transactions, short covering transactions and penalty bids in accordance with Regulation M under the Exchange Act. Overallotment involves sales in excess of the offering size, which create a short position. Stabilizing transactions permit bids to purchase the underlying security so long as the stabilizing bids do not exceed a specified maximum. Short covering transactions involve purchases of the securities in the open market after the distribution is completed to cover short positions. Penalty bids permit the underwriters to reclaim a selling concession from a dealer when the securities originally sold by the dealer are purchased in a covering transaction to cover short positions. Those activities may cause the price of the securities to be higher than it would otherwise be. If commenced, the underwriters may discontinue any of the activities at any time.
 
Any underwriters who are qualified market makers on the NASDAQ Global Market may engage in passive market making transactions in the common stock, warrants and debt securities on the NASDAQ Global Market in accordance with Rule 103 of Regulation M, during the business day prior to the pricing of the offering, before the commencement of offers or sales of the securities. Passive market makers must comply with applicable volume and price limitations and must be identified as passive market makers. In general, a passive market maker must display its bid at a price not in excess of the highest independent bid for such security; if all independent bids are lowered below the passive market maker’s bid, however, the passive market maker’s bid must then be lowered when certain purchase limits are exceeded.
 
LEGAL MATTERS
 
The validity of the securities being offered hereby will be passed upon for us by Cooley Godward Kronish LLP, San Diego, California.


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EXPERTS
 
The financial statements, the related financial statement schedules, and management’s report on the effectiveness of internal control over financial reporting incorporated in this prospectus by reference from the Company’s Annual Report on Form 10-K have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports, which are incorporated herein by reference, and have been so incorporated in reliance upon the reports of such firm given upon their authority as experts in accounting and auditing.
 
WHERE YOU CAN FIND MORE INFORMATION
 
We are a reporting company and file annual, quarterly and current reports, proxy statements and other information with the SEC. We have filed with the SEC a registration statement on Form S-3 under the Securities Act with respect to the securities we are offering under this prospectus. This prospectus, which constitutes a part of the registration statement, does not contain all of the information set forth in the registration statement or the exhibits which are part of the registration statement. For further information with respect to us and the securities we are offering under this prospectus, we refer you to the registration statement and the exhibits and schedules filed as a part of the registration statement. You may read and copy any document we file with the SEC at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for more information about the operation of the Public Reference Room. Our SEC filings are also available at the SEC’s website at www.sec.gov. We maintain a website at www.mannkindcorp.com. Information contained in our website does not constitute a part of this prospectus.
 
INCORPORATION BY REFERENCE
 
The SEC allows us to “incorporate by reference” information that we file with it, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is an important part of this prospectus. Information in this prospectus supersedes information incorporated by reference that we filed with the SEC prior to the date of this prospectus, while information that we file later with the SEC will automatically update and supersede the information in this prospectus. We incorporate by reference into this registration statement and prospectus the documents listed below, and any future filings we will make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of the initial registration statement but prior to effectiveness of the registration statement and after the date of this prospectus but prior to the termination of the offering of the securities covered by this prospectus (other than current reports or portions thereof furnished under Item 2.02 or Item 7.01 of Form 8-K):
 
  •  our Annual Report on Form 10-K for the year ended December 31, 2006;
 
  •  our Quarterly Reports on Form 10-Q for the quarters ended March 31, 2007 and June 30, 2007;
 
  •  our Current Reports on Form 8-K filed on February 26, 2007, June 18, 2007 and August 3, 2007; and
 
  •  the description of our common stock set forth in our registration statement on Form 8-A, filed with the SEC on July 23, 2004, including any amendments or reports filed for the purposes of updating this description.
 
We will furnish without charge to you, on written or oral request, a copy of any or all of the documents incorporated by reference, including exhibits to these documents. You should direct any requests for documents to:
 
Investor Relations
MannKind Corporation
28903 North Avenue Paine
Valencia, CA 91355
(661) 775-5300


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7,400,000 Shares
 
(MANNKIND CORPORATION LOGO)
 
MannKind Corporation
 
Common Stock
 
 
 
 
Jefferies & Company
 
Sole Book-Running Manager
 
Rodman & Renshaw, LLC
 
 
 
 
 
Prospectus Supplement dated August 5, 2009