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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1168195	Sourcefire Inc	FIRE	Services-Computer Processing & Data Preparation (7374)	522289365

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1200878	C John Burris	C/O Sourcefire, Inc. 9770 Patuxent Woods Drive Columbia MD 21046	Chief Executive Officer	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2012-09-12	7,500	$6.77	109,001	No	4	M	Direct
Common Stock	Disposition	2012-09-12	7,500	$55.22	101,501	No	4	S	Direct
Common Stock	Acquisiton	2012-09-13	7,500	$6.77	109,001	No	4	M	Direct
Common Stock	Disposition	2012-09-13	7,500	$55.65	101,501	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2012-09-12	7,500	$0.00	7,500	$6.77
Common Stock	Stock Option (right to buy)	Disposition	2012-09-13	7,500	$0.00	7,500	$6.77

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
265,949		2018-07-14	No	4	M	Direct
258,449		2018-07-14	No	4	M	Direct

Footnotes

Price reflected is the weighted-average sale price for shares sold. The range of sale prices for the transactions reported was $55.1401 to $55.3801 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
Price reflected is the weighted-average sale price for shares sold. The range of sale prices for the transactions reported was $55.50 to $55.79 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
The option vests over a period of four years, with 25% of the shares underlying the option vesting on July 14, 2009, the first anniversary of the date of grant, and the remainder vesting in 36 equal monthly installments thereafter, subject to the reporting person's continuous service with the issuer as of the applicable vesting date.