Notable Holders of SOURCEFIRE, Inc. (FIRE)
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* Does Not Fully Represent All Holders
| Fund | Title | Shares | % Owned | Source |
|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | COMM STK | 2,969,762 | 10.31% | 13F |
| Fidelity Investments | COM | 2,459,774 | 8.54% | 13F |
| GILDER GAGNON HOWE & CO LLC | COM | 2,336,842 | 8.11% | 13F |
| LORD ABBETT & CO LLC | COM | 1,502,027 | 5.21% | 13F |
| VANGUARD GROUP INC | COM | 1,470,923 | 5.10% | 13F |
| BlackRock Fund Advisors | COM | 1,150,705 | 3.99% | 13F |
| JPMORGAN CHASE & CO | COMMON | 829,384 | 2.88% | 13F |
| Clearbridge Advisors, LLC | COM | 827,218 | 2.87% | 13F |
| BlackRock Institutional Trust Company, N.A. | COM | 729,910 | 2.53% | 13F |
| MASON STREET ADVISORS LLC | COM | 674,494 | 2.34% | 13F |
| Ranger Investment Management, L.P. | COM | 633,393 | 2.20% | 13F |
| GRANAHAN INVESTMENT MANAGEMENT INC/MA | COM | 561,226 | 1.95% | 13F |
| FRIESS ASSOCIATES LLC | COM | 455,700 | 1.58% | 13F |
| DIMENSIONAL FUND ADVISORS LP | COM | 432,140 | 1.50% | 13F |
| BLACKROCK ADVISORS LLC | COM | 403,112 | 1.40% | 13F |
| NORTHERN TRUST CORP | COM | 399,437 | 1.39% | 13F |
| ARBOR CAPITAL MANAGEMENT LLC | COM | 375,200 | 1.30% | 13F |
| Wellington | COM | 373,210 | 1.30% | 13F |
| PALISADE CAPITAL MANAGEMENT LLC/NJ | COM | 369,265 | 1.28% | 13F |
| Stephens Investment Management Group LLC | COM | 342,360 | 1.19% | 13F |
| WELLS FARGO & CO/MN | EQUITY | 341,291 | 1.18% | 13F |
| SANDLER CAPITAL MANAGEMENT | COM | 338,340 | 1.17% | 13F |
| Polar Capital LLP | COM | 329,681 | 1.14% | 13F |
| RS INVESTMENT MANAGEMENT CO LLC | COM | 306,247 | 1.06% | 13F |
| GANNETT WELSH & KOTLER | COMMON | 302,818 | 1.05% | 13F |
| RUSSELL FRANK CO/ | COMMON STOCKS | 291,933 | 1.01% | 13F |
| UBS AG | COM | 287,672 | 1.00% | 13F |
| TEACHERS ADVISORS INC | COM | 265,651 | 0.92% | 13F |
| Perimeter Capital Partners, LLC | COM | 262,624 | 0.91% | 13F |
| NEXT CENTURY GROWTH INVESTORS LLC | 255,869 | 0.89% | 13F | |
| EMERALD ADVISERS INC/PA | COM | 243,631 | 0.85% | 13F |
| PIONEER INVESTMENT MANAGEMENT INC | COMMSTCK | 231,672 | 0.80% | 13F |
| White Elm Capital, LLC | COM | 204,418 | 0.71% | 13F |
| NEEDHAM INVESTMENT MANAGEMENT LLC | COM | 185,000 | 0.64% | 13F |
| WALL STREET ASSOCIATES | COM | 184,700 | 0.64% | 13F |
| OPPENHEIMER FUNDS INC | COM | 180,610 | 0.63% | 13F |
| BALYASNY ASSET MANAGEMENT LLC | COMMON STOCK | 180,000 | 0.62% | 13F |
| AMERIPRISE FINANCIAL INC | COM | 139,060 | 0.48% | 13F |
| BLAIR WILLIAM & CO/IL | COM | 137,870 | 0.48% | 13F |
| TIAA CREF INVESTMENT MANAGEMENT LLC | COM | 136,518 | 0.47% | 13F |
| PUBLIC SECTOR PENSION INVESTMENT BOARD | COMMON | 133,632 | 0.46% | 13F |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | COM | 130,927 | 0.45% | 13F |
| ARTIO GLOBAL MANAGEMENT LLC | COM | 130,761 | 0.45% | 13F |
| PRINCIPAL FINANCIAL GROUP INC | COM | 128,970 | 0.45% | 13F |
| Invesco Ltd. | COMMON | 125,156 | 0.43% | 13F |
| CQS Cayman LP | COM | 125,000 | 0.43% | 13F |
| WASHINGTON CAPITAL MANAGEMENT INC | COM | 124,494 | 0.43% | 13F |
| CREDIT AGRICOLE S A | COM | 109,800 | 0.38% | 13F |
| UBS GLOBAL ASSET MANAGEMENT AMERICAS INC | EQTY US OTC | 106,900 | 0.37% | 13F |
| GIOVINE CAPITAL GROUP LLC | COMMON STOCK | 105,900 | 0.37% | 13F |
| MAPLELANE CAPITAL, LLC (PUT) | COM | 100,000 | 0.35% | 13F |
| BlackRock Investment Management, LLC | COM | 97,155 | 0.34% | 13F |
| Employees Retirement System of Texas | COM | 93,920 | 0.33% | 13F |
| GEODE CAPITAL MANAGEMENT LLC | COM | 93,236 | 0.32% | 13F |
| EMERALD MUTUAL FUND ADVISERS TRUST | COM | 87,917 | 0.31% | 13F |
| Platte River Capital LLC | COM | 87,190 | 0.30% | 13F |
| WEISEL THOMAS PARTNERS ASSET MANAGEMENT LLC | COM | 80,333 | 0.28% | 13F |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | * SOURCEFIRE INC COM | 74,978 | 0.26% | 13F |
| NEW YORK STATE COMMON RETIREMENT FUND | COMMON STOCK | 70,000 | 0.24% | 13F |
| MORGAN STANLEY | COM | 69,546 | 0.24% | 13F |
| AMERICAN CAPITAL MANAGEMENT INC | COM | 67,750 | 0.24% | 13F |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 60,575 | 0.21% | 13F | |
| GUGGENHEIM CAPITAL LLC | COM | 60,025 | 0.21% | 13F |
| SCHWAB CHARLES INVESTMENT MANAGEMENT INC | COM | 58,974 | 0.20% | 13F |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | COM | 58,935 | 0.20% | 13F |
| DAI ICHI LIFE INSURANCE CO., LTD. | COM | 51,516 | 0.18% | 13F |
| CREDIT SUISSE AG/ | COM | 46,633 | 0.16% | 13F |
| AH Lisanti Capital Growth, LLC | COM | 44,250 | 0.15% | 13F |
| 300 NORTH CAPITAL, LLC | COM | 41,480 | 0.14% | 13F |
| BROWN ADVISORY HOLDINGS INC | COM | 36,900 | 0.13% | 13F |
| RHG Capital, L.P. | COM | 36,126 | 0.13% | 13F |
| Lee Munder Capital Group, LLC | COM | 32,401 | 0.11% | 13F |
| COMERICA BANK | COM | 31,974 | 0.11% | 13F |
| BARCLAYS PLC | COM | 25,064 | 0.09% | 13F |
| ING INVESTMENT MANAGEMENT CO | COM | 24,420 | 0.08% | 13F |
| FIL Ltd | COM | 23,900 | 0.08% | 13F |
| AMERICAN INTERNATIONAL GROUP INC | COM | 23,800 | 0.08% | 13F |
| Manulife Asset Management (North America) Ltd | COM | 23,071 | 0.08% | 13F |
| Timber Hill LLC (CALL) | CALL | 21,500 | 0.07% | 13F |
| Magnetar Financial LLC | COM | 21,247 | 0.07% | 13F |
| Goldman Sachs Asset Management, L.P. | CMN | 20,645 | 0.07% | 13F |
| Missouri Valley Partners, Inc. | COM | 18,943 | 0.07% | 13F |
| PARAMETRIC PORTFOLIO ASSOCIATES | Common Stock | 18,133 | 0.06% | 13F |
| KING LUTHER CAPITAL MANAGEMENT CORP | COM | 17,956 | 0.06% | 13F |
| DIAM Co., Ltd. | COM | 17,125 | 0.06% | 13F |
| STATE STREET CORP | COMMON STOCK | 14,612 | 0.05% | 13F |
| PEAK6 Investments, L.P. | COM | 13,700 | 0.05% | 13F |
| Citadel (CALL) | CMN | 13,200 | 0.05% | 13F |
| THRIVENT FINANCIAL FOR LUTHERANS | COM | 11,600 | 0.04% | 13F |
| FIRST TRUST ADVISORS LP | COM | 11,382 | 0.04% | 13F |
| ROYAL BANK OF CANADA \ | COM | 10,513 | 0.04% | 13F |
| BlackRock Group LTD | COM | 9,912 | 0.03% | 13F |
| BlackRock Inc. | COM | 9,900 | 0.03% | 13F |
| OXFORD ASSET MANAGEMENT | COM | 7,929 | 0.03% | 13F |
| CAMDEN PARTNERS HOLDINGS LLC | COM | 7,700 | 0.03% | 13F |
| FBR & Co. | COM | 7,600 | 0.03% | 13F |
| DEUTSCHE BANK AG\ | COM | 7,512 | 0.03% | 13F |
| Spot Trading L.L.C (PUT) | COM | 7,300 | 0.03% | 13F |
| PineBridge Investments Ltd | COM | 6,100 | 0.02% | 13F |
| BlackRock Japan Co. Ltd | COM | 5,423 | 0.02% | 13F |
| FIRST MERCANTILE TRUST CO | COMMON STOCK USD.001 | 3,495 | 0.01% | 13F |
