Schedule 13G - Form - revised to 10/15/97 bulletin

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

Schedule 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (b)

(Amendment No. )

SOURCEFIRE, INC.

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

83616T108

(CUSIP Number)

12/31/07

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[   ]

Rule 13d-1(b)

[   ]

Rule 13d-1(c)

[X]

Rule 13d-1(d)

(Continued on following pages)




Page 1 of 12 Pages



CUSIP NO. 83616T108

13 G

Page 2 of 12 Pages





1

NAME OF REPORTING PERSON

SEQUOIA CAPITAL FRANCHISE FUND, L.P. (“SCFF”)

I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

94-3324307

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

[   ]

(b)

[X]

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

DELAWARE

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

1,179,895

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

1,179,895

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,179,895

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)

EXCLUDES CERTAIN SHARES

[   ]

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

4.8%

12

TYPE OF REPORTING PERSON

PN








CUSIP NO. 83616T108

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Page 3 of 12 Pages




1

NAME OF REPORTING PERSON

SEQUOIA CAPITAL FRANCHISE PARTNERS, L.P. (“SCFP”)

I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

94-3330616

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

[   ]

(b)

[X]

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

DELAWARE

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

160,894

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

160,894

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

160,894

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)

EXCLUDES CERTAIN SHARES

[   ]

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

0.7%

12

TYPE OF REPORTING PERSON

PN






CUSIP NO. 83616T108

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Page 4 of 12 Pages




1

NAME OF REPORTING PERSON

SCFF MANAGEMENT, LLC (“SCFF LLC”)

 I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

94-3324306

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

[   ]

(b)

[X]

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

DELAWARE

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  SCFF LLC is the General Partner of SCFF and SCFP.

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  SCFF LLC is the General Partner of SCFF and SCFP.

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,340,789

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)

EXCLUDES CERTAIN SHARES

[   ]

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.5%

12

TYPE OF REPORTING PERSON

OO






CUSIP NO. 83616T108

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Page 5 of 12 Pages




1

NAME OF REPORTING PERSON

MICHAEL MORITZ

I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

[   ]

(b)

[X]

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

USA

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  Mr. Moritz is a Managing Member of SCFF LLC.  Mr. Moritz disclaims beneficial ownership of all such shares except to the extent of his individual pecuniary interest therein.

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  Mr. Moritz is a Managing Member of SCFF LLC.  Mr. Moritz disclaims beneficial ownership of all such shares except to the extent of his individual pecuniary interest therein.

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,340,789

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)

EXCLUDES CERTAIN SHARES

[   ]

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.5%

12

TYPE OF REPORTING PERSON

IN





CUSIP NO. 83616T108

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Page 6 of 12 Pages




1

NAME OF REPORTING PERSON

DOUGLAS LEONE

I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

[   ]

(b)

[X]

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

USA

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  Mr. Leone is a Managing Member of SCFF LLC.  Mr. Leone disclaims beneficial ownership of all such shares except to the extent of his individual pecuniary interest therein.

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  Mr. Leone is a Managing Member of SCFF LLC.  Mr. Leone disclaims beneficial ownership of all such shares except to the extent of his individual pecuniary interest therein.

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,340,789

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)

EXCLUDES CERTAIN SHARES

[   ]

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.5%

12

TYPE OF REPORTING PERSON

IN





CUSIP NO. 83616T108

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Page 7 of 12 Pages




1

NAME OF REPORTING PERSON

MARK STEVENS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

[   ]

(b)

[X]

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

USA

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  Mr. Stevens is a Managing Member of SCFF LLC.  Mr. Stevens disclaims beneficial ownership of all such shares except to the extent of his individual pecuniary interest therein.

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  Mr. Stevens is a Managing Member of SCFF LLC.  Mr. Stevens disclaims beneficial ownership of all such shares except to the extent of his individual pecuniary interest therein.

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,340,789

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)

EXCLUDES CERTAIN SHARES

[   ]

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.5%

12

TYPE OF REPORTING PERSON

IN





CUSIP NO. 83616T108

13 G

Page 8 of 12 Pages




1

NAME OF REPORTING PERSON

MICHAEL GOGUEN

I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)

[   ]

(b)

[X]

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

USA

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  Mr. Goguen is a Managing Member of SCFF LLC.  Mr. Goguen disclaims beneficial ownership of all such shares except to the extent of his individual pecuniary interest therein.

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

1,340,789 shares of which 1,179,895 shares are directly held by SCFF and 160,894 shares are directly held by SCFP.  Mr. Goguen is a Managing Member of SCFF LLC.  Mr. Goguen disclaims beneficial ownership of all such shares except to the extent of his individual pecuniary interest therein.

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,340,789

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)

EXCLUDES CERTAIN SHARES

[   ]

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.5%

12

TYPE OF REPORTING PERSON

IN





CUSIP NO. 83616T108

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Page 9 of 12 Pages




ITEM 1.

(a)

Name of Issuer:

Sourcefire, Inc.

(b)

Address of Issuer’s Principal Executive Offices:

9770 Patuxent Woods Drive

Columbia, Maryland  21046

ITEM 2.

(a)

Name of Persons Filing:


Sequoia Capital Franchise Fund, L.P.

Sequoia Capital Franchise Partners, L.P.

SCFF Management, LLC

Michael Moritz (“MM”)

Douglas Leone  (“DL”)

Mark Stevens  (“MS”)

Michael Goguen  (“MG”)


SCFF LLC is the General Partner of SCFF and SCFP.  MM, DL, MS and MG are Managing Members of SCFF LLC.


(b)

Address of Principal Business Office or, if none, Residence:

3000 Sand Hill Road, 4-180

Menlo Park, CA  94025


(c)

Citizenship:

MM, DL, MS, MG:  USA

SCFF LLC, SCFF, SCFP:  Delaware


(d)

Title of Class of Securities:

Common


(e)

CUSIP Number:

83616T108


ITEM 3.

If this statement is filed pursuant to Rules 13d-1(b) or 13d-2(b) or (c), check whether the person filing is a:     

Not applicable

ITEM 4.

Ownership

See rows 5 through 11 of cover pages


ITEM 5.

Ownership of five percent or less of a class

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.  [  ]





CUSIP NO. 83616T108

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Page 10 of 12 Pages




ITEM 6.

Ownership of more than five percent on behalf of another person

Not applicable

ITEM 7.

Identification and Classification of the Subsidiary which acquired the security being reported on by the parent holding company or control person

Not applicable


ITEM 8.

Identification and classification of members of the group

Not applicable

ITEM 9.

Notice of dissolution of group

Not applicable

ITEM 10.

Certification

Not applicable





CUSIP NO. 83616T108

13 G

Page 11 of 12 Pages



SIGNATURE


After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.


Dated:  February 8, 2008


Sequoia Capital Franchise Fund, L.P.

Sequoia Capital Franchise Partners, L.P.

 

By:  SCFF Management, LLC,

their General Partner

 

By:  /s/ Michael Moritz                        

Michael Moritz, Managing Member

 
  
  

 /s/ Michael Moritz                               

Michael Moritz

 

 /s/ Douglas Leone                               

Douglas Leone

 

 /s/ Mark Stevens                                 

Mark Stevens

 

 /s/ Michael Goguen                            

Michael Goguen

 






CUSIP NO. 83616T108

13 G

Page 12 of 12 Pages



EXHIBIT 1


AGREEMENT AS TO JOINT FILING OF SCHEDULE 13G


The undersigned hereby agree that the Schedule 13G relating to shares of Sourcefire, Inc. to which this Agreement as to Joint Filing of Schedule 13G is attached as an exhibit is filed on behalf of each of them.


Date: February 8, 2008


Sequoia Capital Franchise Fund, L.P.

Sequoia Capital Franchise Partners, L.P.

By:  SCFF Management, LLC,

their General Partner

By:  /s/ Michael Moritz                                         

Michael Moritz, Managing Member

 
 

 /s/ Michael Moritz                                                

Michael Moritz

 /s/ Douglas Leone                                                

Douglas Leone

 /s/ Mark Stevens                                                   

Mark Stevens

 /s/ Michael Goguen                                              

Michael Goguen