| 8.85 Data as of May 17 |  -0.03 / -0.34%Today’s Change | 3.72 Today|||52-Week Range 9.65 | +40.92% Year-to-Date |
| Other institutional | 32.35% |
| Mutual fund holders | 22.48% |
| Individual stakeholders | 16.82% |
| 3/31/2013 | NORTHPOINTE CAPITAL LLC Bought 795.7 Thousand shares of Repligen Corp |
| 3/31/2013 | CADENCE CAPITAL MANAGEMENT LLC Bought 168.9 Thousand shares of Repligen Corp |
| 3/31/2013 | PYRAMIS GLOBAL ADVISORS LLC Bought 107.6 Thousand shares of Repligen Corp |
| Stockholder | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| NorthPointe Capital LLC | 9.91% | 3,103,289 | 27,805,469 | +795,652 | +34.48% |
| Federated Investment Management C... | 8.77% | 2,747,500 | 24,617,600 | 0 | 0.00% |
| BlackRock Fund Advisors | 5.79% | 1,813,488 | 16,248,852 | +69,675 | +4.00% |
| AWM Investment Co., Inc. | 4.53% | 1,417,928 | 12,704,635 | 0 | 0.00% |
| Dimensional Fund Advisors, Inc. | 3.68% | 1,150,672 | 10,310,021 | +1,672 | +0.15% |
| The Vanguard Group, Inc. | 2.55% | 798,376 | 7,153,449 | +12,556 | +1.60% |
| Wellington Management Co. LLP | 1.92% | 599,592 | 5,372,344 | -127,500 | -17.54% |
| SSgA Funds Management, Inc. | 1.69% | 529,041 | 4,740,207 | -13,207 | -2.44% |
| Northern Trust Investments, Inc. | 1.43% | 448,959 | 4,022,673 | -10,883 | -2.37% |
| Renaissance Technologies LLC | 1.36% | 426,302 | 3,819,666 | -122,006 | -22.25% |
| Mutual fund | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| Federated Kaufmann Fund | 8.62% | 2,700,000 | 24,192,000 | 0 | 0.00% |
| Multimanager Small Cap Growth Por... | 1.94% | 606,262 | 5,432,108 | +58,726 | +10.73% |
| iShares Russell 2000 Index Fund | 1.54% | 483,309 | 4,330,449 | -20,946 | -4.15% |
| Vanguard Total Stock Market Index... | 1.31% | 409,388 | 3,668,116 | 0 | 0.00% |
| DFA US Micro Cap Portfolio | 1.04% | 324,883 | 2,910,952 | 0 | 0.00% |
| Vanguard Extended Market Index Fu... | 0.90% | 282,391 | 2,530,223 | 0 | 0.00% |
| iShares Russell 2000 Growth Index... | 0.61% | 191,058 | 1,711,880 | -13,570 | -6.63% |
| DFA US Small Cap Portfolio | 0.49% | 152,105 | 1,362,861 | +2,000 | +1.33% |
| DFA US Targeted Value Portfolio | 0.40% | 124,424 | 1,114,839 | 0 | 0.00% |
| CREF Stock Account | 0.36% | 112,283 | 1,006,056 | 0 | 0.00% |
.
