FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person *   Diedrich Robert P 2. Date of Event Requiring Statement (Month/Day/Year) 05/19/2010 3. Issuer Name and Ticker or Trading Symbol FIRST MIDWEST BANCORP INC [FMBI] (Last) (First) (Middle) ONE PIERCE PLACE, SUITE 1500 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP, Trust Division Manager 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) ITASCA, IL 60143 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 25,893 D   Common Stock 2,147 I By IRA Common Stock 9,207 I By Profit Sharing Plan Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-Qualified Stock Option (right to buy) (1)	  (2)	02/21/2011	Common Stock	2,100	$ 22.5	D	Â
Non-Qualified Stock Option (right to buy) (1)	  (3)	02/20/2012	Common Stock	3,425	$ 28.695	D	Â
Non-Qualified Stock Option (right to buy) (1)	  (4)	02/19/2013	Common Stock	3,928	$ 26.255	D	Â
Non-Qualified Stock Option (right to buy) (1)	  (5)	02/24/2014	Common Stock	3,309	$ 32.715	D	Â
Non-Qualified Stock Option (right to buy) (1)	  (6)	02/23/2015	Common Stock	3,350	$ 33.61	D	Â
Non-Qualified Stock Option (right to buy) (1)	  (7)	02/22/2016	Common Stock	8,766	$ 33.92	D	Â
Non-Qualified Stock Option (right to buy) (1)	  (8)	02/21/2017	Common Stock	8,271	$ 38.62	D	Â
Non-Qualified Stock Option (right to buy) (1)	  (9)	02/20/2018	Common Stock	13,581	$ 28.095	D	Â
Phantom Stock under NQ Retirement Plan	  (10)	  (10)	Common Stock	1,388	$ (10)	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Diedrich Robert P ONE PIERCE PLACE SUITE 1500 ITASCA, IL 60143	Â	Â	  EVP, Trust Division Manager	Â

Signatures

/S/ Robert P. Diedrich		05/19/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Granted under the Amended and Restated First Midwest Bancorp, Inc. Omnibus Stock and Incentive Plan.
(2)	The stock option vests in two equal annual installments specifically on February 21, 2003 and February 21, 2004, respectively.
(3)	The stock option vests in two equal annual installments specifically on February 20, 2004 and February 20, 2005, respectively.
(4)	The stock option vests in two equal annual installments specifically on February 19, 2005 and February 19, 2006, respectively.
(5)	The stock option vests in two equal annual installments specifically on February 24, 2006 and February 24, 2007, respectively.
(6)	The stock option vests in two equal annual installments specifically on February 23, 2007 and February 23, 2008, respectively.
(7)	The stock option vests in two equal annual installments specifically on February 22, 2008 and February 22, 2009, respectively.
(8)	The stock option vests in two equal annual installments specifically on February 21, 2009 and February 21, 2010, respectively.
(9)	The stock option vests in two equal annual installments specifically on February 20, 2010 and February 20, 2011, respectively.
(10)	Shares of phantom stock acquired under the Nonqualified Retirement Plan have a 1-for-1 conversion ratio and are payable in cash upon distribution to the Participant in accordance with the terms of the Plan.

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