| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 9.3% | $603,552,204 | 5,198,107 | BlackRock, Inc. | 31 Mar 2025 | |||
| PRICE T ROWE ASSOCIATES INC /MD/ | 6.1% | -51% | $436,066,901 | -$471,286,434 | 3,429,547 | -52% | T. Rowe Price Associates, Inc. | 31 Aug 2025 |
| EDDLEMAN ROY T | 4.8% | $314,157,550 | 2,705,689 | Roy T. Eddleman Living Trust | 31 Dec 2024 |
As of 30 Sep 2025, 445 institutional investors reported holding 59,799,482 shares of REPLIGEN CORP - COMMON STOCK (RGEN). This represents 106% of the company’s total 56,222,082 outstanding shares.
The largest institutional shareholders of REPLIGEN CORP - COMMON STOCK (RGEN) together control 70% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 11% | 6,139,730 | +1% | 0.01% | $820,697,703 |
| VANGUARD GROUP INC | 9% | 5,044,191 | -0.65% | 0.01% | $674,257,011 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 6.2% | 3,507,378 | -47% | 0.05% | $468,832,000 |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | 4.9% | 2,755,943 | 2.7% | $368,386,901 | |
| FMR LLC | 4.8% | 2,691,212 | +67% | 0.02% | $359,734,287 |
| STATE STREET CORP | 3.2% | 1,801,536 | +11% | 0.01% | $240,811,317 |
| CITADEL ADVISORS LLC | 3% | 1,684,720 | +58% | 0.18% | $225,196,523 |
| Point72 Asset Management, L.P. | 2.6% | 1,440,721 | -25% | 0.42% | $192,581,197 |
| Holocene Advisors, LP | 2.4% | 1,377,104 | +47% | 0.42% | $184,077,492 |
| Champlain Investment Partners, LLC | 2.4% | 1,339,246 | -4.4% | 1.3% | $179,017,013 |
| Bank of New York Mellon Corp | 2.3% | 1,315,836 | -0.67% | 0.03% | $175,887,845 |
| ALLIANCEBERNSTEIN L.P. | 2% | 1,104,171 | +22% | 0.05% | $147,594,538 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 1,032,439 | +5.3% | 0.01% | $138,029,697 |
| Conestoga Capital Advisors, LLC | 1.7% | 956,913 | -2% | 2.1% | $127,910,561 |
| Invesco Ltd. | 1.6% | 873,040 | -37% | 0.02% | $116,699,257 |
| MILLENNIUM MANAGEMENT LLC | 1.5% | 817,056 | +17% | 0.09% | $109,215,876 |
| DIMENSIONAL FUND ADVISORS LP | 1.4% | 799,510 | +4.1% | 0.02% | $106,825,785 |
| Balyasny Asset Management L.P. | 1.4% | 767,239 | +391% | 0.21% | $102,556,837 |
| Impax Asset Management Group plc | 1.3% | 703,237 | -7.6% | 0.54% | $93,031,780 |
| BROWN CAPITAL MANAGEMENT LLC | 1.2% | 668,858 | -33% | 3.7% | $89,406,249 |
| Stephens Investment Management Group LLC | 1.1% | 598,356 | +14% | 1% | $79,982,247 |
| GENEVA CAPITAL MANAGEMENT LLC | 1.1% | 596,768 | +22% | 1.4% | $79,769,980 |
| T. Rowe Price Investment Management, Inc. | 1% | 572,078 | +2.2% | 0.05% | $76,470,000 |
| DF DENT & CO INC | 0.95% | 534,719 | -8.8% | 0.92% | $71,475,843 |
| AMERIPRISE FINANCIAL INC | 0.91% | 509,611 | +6.1% | 0.02% | $68,119,911 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 1,642,796 | $269,377,770 | +$88,153,885 | $163.86 | 44 |
| 2025 Q3 | 59,799,482 | $7,995,510,806 | +$187,488,207 | $133.67 | 445 |
| 2025 Q2 | 58,417,175 | $7,219,796,205 | +$74,553,209 | $124.38 | 442 |
| 2025 Q1 | 57,398,139 | $7,304,074,046 | +$139,148,092 | $127.24 | 438 |
| 2024 Q4 | 56,237,415 | $8,094,119,798 | +$126,088,019 | $143.94 | 427 |
| 2024 Q3 | 55,319,225 | $8,225,035,102 | +$2,813,655 | $148.82 | 441 |
| 2024 Q2 | 56,097,077 | $7,068,554,308 | -$93,174,903 | $126.06 | 445 |
| 2024 Q1 | 56,079,452 | $10,306,080,578 | -$396,582,655 | $183.92 | 488 |
| 2023 Q4 | 731,082 | $131,517,919 | +$91,850,442 | $179.80 | 5 |
| 2023 Q3 | 56,788,855 | $9,027,253,663 | +$368,155,521 | $159.01 | 430 |
| 2023 Q2 | 54,411,443 | $7,704,060,307 | +$8,980,139 | $141.46 | 437 |
| 2023 Q1 | 53,762,692 | $9,049,151,613 | +$69,185,811 | $168.36 | 438 |
| 2022 Q4 | 52,045,384 | $8,811,980,100 | +$355,886,906 | $169.31 | 429 |
| 2022 Q3 | 49,757,404 | $9,314,767,665 | +$136,192,623 | $187.11 | 413 |
| 2022 Q2 | 49,809,467 | $8,092,371,248 | +$274,229,437 | $162.40 | 382 |
| 2022 Q1 | 48,188,354 | $9,057,191,835 | +$206,442,131 | $188.09 | 424 |
| 2021 Q4 | 46,978,082 | $12,435,000,841 | -$247,603,948 | $264.84 | 481 |
| 2021 Q3 | 47,227,939 | $13,641,071,434 | +$279,156,595 | $288.99 | 467 |
| 2021 Q2 | 46,331,242 | $9,248,968,990 | +$156,545,902 | $199.62 | 422 |
| 2021 Q1 | 45,654,895 | $8,872,284,938 | +$75,587,801 | $194.41 | 451 |
| 2020 Q4 | 45,720,562 | $8,759,482,147 | +$265,984,692 | $191.63 | 439 |
| 2020 Q3 | 44,604,522 | $6,583,007,717 | -$39,413,856 | $147.54 | 381 |
| 2020 Q2 | 45,107,658 | $5,577,956,857 | -$195,603,627 | $123.61 | 361 |
| 2020 Q1 | 45,701,008 | $4,409,982,651 | +$308,388,840 | $96.54 | 296 |
| 2019 Q4 | 43,536,727 | $4,026,405,029 | -$116,718,905 | $92.50 | 294 |
| 2019 Q3 | 44,645,769 | $3,422,654,573 | -$7,846,781 | $76.69 | 292 |
| 2019 Q2 | 44,747,389 | $3,843,255,917 | +$537,670,761 | $85.95 | 264 |
| 2019 Q1 | 39,691,557 | $2,344,839,121 | +$48,456,461 | $59.08 | 239 |
| 2018 Q4 | 39,007,695 | $2,057,025,064 | -$111,267,214 | $52.74 | 233 |
| 2018 Q3 | 40,924,003 | $2,269,627,403 | +$69,214,614 | $55.46 | 193 |
| 2018 Q2 | 40,520,491 | $1,905,799,055 | +$121,610,692 | $47.04 | 186 |
| 2018 Q1 | 37,679,814 | $1,363,320,226 | +$31,538,966 | $36.18 | 178 |
| 2017 Q4 | 36,738,255 | $1,332,950,569 | +$40,398,185 | $36.28 | 174 |
| 2017 Q3 | 36,403,343 | $1,394,672,142 | +$29,811,372 | $38.32 | 186 |
| 2017 Q2 | 33,920,691 | $1,405,622,268 | +$144,432,379 | $41.44 | 192 |
| 2017 Q1 | 32,457,429 | $1,142,458,808 | +$157,883,467 | $35.20 | 177 |
| 2016 Q4 | 32,122,072 | $990,176,738 | +$12,060,982 | $30.82 | 177 |
| 2016 Q3 | 31,853,251 | $961,196,212 | +$47,294,779 | $30.19 | 176 |
| 2016 Q2 | 30,394,996 | $831,660,372 | +$19,862,138 | $27.36 | 180 |
| 2016 Q1 | 29,486,342 | $790,843,927 | +$36,501,853 | $26.82 | 178 |
| 2015 Q4 | 28,418,668 | $803,884,773 | -$42,817,574 | $28.29 | 172 |
| 2015 Q3 | 29,973,390 | $834,757,582 | -$19,609,939 | $27.85 | 186 |
| 2015 Q2 | 29,801,268 | $1,229,834,824 | +$44,354,830 | $41.27 | 170 |
| 2015 Q1 | 29,357,615 | $890,241,268 | +$18,855,390 | $30.36 | 167 |
| 2014 Q4 | 28,790,553 | $570,051,773 | +$24,857,545 | $19.80 | 160 |
| 2014 Q3 | 28,133,298 | $560,133,714 | -$3,441,993 | $19.91 | 161 |
| 2014 Q2 | 28,119,042 | $640,450,743 | +$57,096,627 | $22.79 | 161 |
| 2014 Q1 | 26,217,884 | $337,427,505 | +$14,818,211 | $12.86 | 132 |