| 56.67 Data as of May 20 |  +0.21 / +0.37%Today’s Change | 39.50 Today|||52-Week Range 59.49 | +20.01% Year-to-Date |
| Mutual fund holders | 65.33% |
| Other institutional | 55.05% |
| Individual stakeholders | 15.44% |
| 3/31/2013 | WELLS CAPITAL MANAGEMENT, INC. Bought 1.1 Million shares of Sourcefire Inc |
| 3/31/2013 | CITADEL ADVISORS LLC Bought 883.7 Thousand shares of Sourcefire Inc |
| 3/31/2013 | EAGLE ASSET MANAGEMENT, INC. Bought 594.0 Thousand shares of Sourcefire Inc |
| Stockholder | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| BlackRock Fund Advisors | 7.40% | 2,304,447 | 110,060,389 | +124,084 | +5.69% |
| Pyramis Global Advisors LLC | 5.82% | 1,810,295 | 86,459,689 | +61,858 | +3.54% |
| Wells Capital Management, Inc. | 5.77% | 1,794,908 | 85,724,806 | +1,149,808 | +178.24% |
| The Vanguard Group, Inc. | 5.76% | 1,794,456 | 85,703,219 | -6,712 | -0.37% |
| Fidelity Management & Research Co... | 5.11% | 1,591,368 | 76,003,736 | -175,242 | -9.92% |
| T. Rowe Price Associates, Inc. | 4.56% | 1,419,262 | 67,783,953 | -495,600 | -25.88% |
| BT Investment Management Ltd. (In... | 3.77% | 1,173,487 | 56,045,739 | +14,939 | +1.29% |
| Wasatch Advisors, Inc. | 3.54% | 1,101,526 | 52,608,882 | +248,344 | +29.11% |
| Eagle Asset Management, Inc. | 3.31% | 1,030,536 | 49,218,399 | +594,039 | +136.09% |
| Citadel Advisors LLC | 3.21% | 999,744 | 47,747,773 | +883,722 | +761.68% |
| Mutual fund | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| T Rowe Price New Horizons Fund | 4.98% | 1,550,000 | 74,028,000 | +400,000 | +34.78% |
| Fidelity Magellan Fund | 3.94% | 1,224,958 | 58,503,994 | +312,958 | +34.32% |
| Wells Fargo Advantage Growth Fund | 2.97% | 925,000 | 44,178,000 | 0 | 0.00% |
| JOHCM OEIC - Global Select Fund | 2.40% | 747,938 | 35,721,519 | -38,496 | -4.90% |
| ClearBridge Small Cap Growth Fund | 1.98% | 615,988 | 29,419,587 | +26,380 | +4.47% |
| Dynamic Power American Growth Fun... | 1.97% | 612,000 | 29,229,120 | +68,200 | +12.54% |
| iShares Core S&P Small Cap ETF | 1.72% | 534,290 | 25,517,690 | +11,700 | +2.24% |
| Vanguard Small Cap Index Fund | 1.60% | 497,127 | 23,742,786 | +19,124 | +4.00% |
| iShares Russell 2000 Index Fund | 1.50% | 466,937 | 22,300,911 | -6,133 | -1.30% |
| Wasatch Small Cap Growth Fund | 1.39% | 433,812 | 20,718,861 | 0 | 0.00% |
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