Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2026-10-05 Sale | 2026-10-06 4:18 pm | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 5,535 | $187.29 | $1,036,654 | 54,193 (Direct) | View |
| 2026-09-24 Sale | 2026-09-25 4:09 pm | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 12,946 | $190 | $2,459,740 | 70,061 (Direct) | View |
| 2026-09-21 Sale | 2026-09-22 4:07 pm | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 5,426 | $180 | $976,680 | 53,795 (Direct) | View |
| 2026-09-04 Sale | 2026-09-08 4:13 pm | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 3,035 | $165.9 | $503,507 | 48,369 (Direct) | View |
| 2026-08-20 Sale | 2026-08-21 4:06 pm | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 5,426 | $180 | $976,680 | 65,098 (Direct) | View |
| 2026-07-16 Sale | 2026-07-17 4:40 pm | REPLIGEN CORP | RGEN | Garland Jason K CFO | 530 | $150 | $79,500 | 18,829 (Direct) | View |
| 2026-06-25 Sale | 2026-06-26 4:05 pm | REPLIGEN CORP | RGEN | Garland Jason K CFO | 733 | $145 | $106,285 | 19,359 (Direct) | View |
| 2026-04-21 Sale | 2026-04-22 1:26 pm | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 3,832 | $140 | $536,480 | 54,246 (Direct) | View |
| 2025-12-17 Sale | 2025-12-18 4:30 pm | REPLIGEN CORP | RGEN | DAWES KAREN A Director | 275 | $161 | $44,275 | 91,821 (Direct) | View |
| 2025-11-25 Sale | 2025-11-26 4:30 pm | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 7,041 | $170 | $1,196,970 | 35,898 (Direct) | View |
| 2025-11-18 Sale | 2025-11-19 4:30 pm | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 2,191 | $151.21 | $331,301 | 21,520 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-10-05 Exercise | 2026-10-06 4:18 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 4,202 | $154.96 | 54,193 (Direct) | View |
| 2026-10-05 Exercise | 2026-10-06 4:18 pm | N/A 2033-10-02 | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 4,202 | $0 | 54,193 (Direct) | View |
| 2026-10-02 Tax Withholding | 2026-10-05 4:01 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 1,248 | $181.7 | 47,121 (Direct) | View |
| 2026-09-25 Tax Withholding | 2026-09-28 4:05 pm | N/A N/A | REPLIGEN CORP | RGEN | Garland Jason K CFO | 421 | $189.68 | 18,408 (Direct) | View |
| 2026-09-24 Exercise | 2026-09-25 4:09 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 8,404 | $154.96 | 70,061 (Direct) | View |
| 2026-09-24 Exercise | 2026-09-25 4:09 pm | N/A 2033-10-02 | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 12,946 | $0 | 70,061 (Direct) | View |
| 2026-09-24 Exercise | 2026-09-25 4:09 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 4,542 | $155.38 | 70,061 (Direct) | View |
| 2026-09-21 Exercise | 2026-09-22 4:07 pm | 2027-09-03 2034-09-03 | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 5,426 | $0 | 53,795 (Direct) | View |
| 2026-09-21 Exercise | 2026-09-22 4:07 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 5,426 | $141.79 | 53,795 (Direct) | View |
| 2026-09-03 Tax Withholding | 2026-09-08 4:13 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 2,842 | $169.61 | 48,369 (Direct) | View |
| 2026-03-05 Option Award | 2026-09-02 4:18 pm | N/A N/A | REPLIGEN CORP | RGEN | Hughes Violetta CHIEF ACCOUNTING OFFICER | 2,466 | $0 | 6,331 (Direct) | View |
| 2026-09-01 Tax Withholding | 2026-09-02 4:18 pm | N/A N/A | REPLIGEN CORP | RGEN | Hughes Violetta CHIEF ACCOUNTING OFFICER | 277 | $170.02 | 6,331 (Direct) | View |
| 2026-08-20 Exercise | 2026-08-21 4:06 pm | N/A 2034-09-03 | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 5,426 | $0 | 65,098 (Direct) | View |
| 2026-08-20 Exercise | 2026-08-21 4:06 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 5,426 | $141.79 | 65,098 (Direct) | View |
| 2026-05-14 Option Award | 2026-05-18 4:05 pm | 2027-05-14 2036-05-14 | REPLIGEN CORP | RGEN | Madaus Martin D Director | 3,234 | $0 | 10,631 (Direct) | View |
| 2026-05-14 Option Award | 2026-05-18 4:05 pm | 2027-05-14 2036-05-14 | REPLIGEN CORP | RGEN | Konstantinov Konstantin Director | 3,234 | $0 | 6,128 (Direct) | View |
| 2026-05-14 Option Award | 2026-05-18 4:05 pm | 2027-05-14 2036-05-14 | REPLIGEN CORP | RGEN | EGLINTON MANNER CARRIE Director | 3,234 | $0 | 7,700 (Direct) | View |
| 2026-05-14 Option Award | 2026-05-18 4:05 pm | 2027-05-14 2036-05-14 | REPLIGEN CORP | RGEN | Mhatre Rohin Director | 3,234 | $0 | 7,253 (Direct) | View |
| 2026-05-14 Option Award | 2026-05-18 4:05 pm | 2027-05-14 2036-05-14 | REPLIGEN CORP | RGEN | Pax Margaret Director | 3,234 | $0 | 5,250 (Direct) | View |
| 2026-05-14 Option Award | 2026-05-18 4:05 pm | 2027-05-14 2036-05-14 | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 3,234 | $0 | 42,290 (Direct) | View |
| 2026-05-14 Option Award | 2026-05-18 4:05 pm | 2027-05-14 2036-05-14 | REPLIGEN CORP | RGEN | DAWES KAREN A Director | 3,234 | $0 | 95,055 (Direct) | View |
| 2026-05-14 Option Award | 2026-05-18 4:05 pm | 2027-05-14 2036-05-14 | REPLIGEN CORP | RGEN | BARTHELEMY NICOLAS Director | 3,234 | $0 | 7,675 (Direct) | View |
| 2026-05-07 Exercise | 2026-05-08 2:48 pm | N/A 2027-05-18 | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 2,434 | $0 | 41,490 (Direct) | View |
| 2026-05-07 Exercise | 2026-05-08 2:48 pm | N/A N/A | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 2,434 | $38.76 | 41,490 (Direct) | View |
| 2026-05-07 Tax Withholding | 2026-05-08 2:39 pm | N/A N/A | REPLIGEN CORP | RGEN | Douglass Brian Robb CHIEF PRODUCT OFFICER | 334 | $126.43 | 7,985 (Direct) | View |
| 2026-03-05 Option Award | 2026-03-23 12:00 pm | N/A 2036-03-05 | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 10,953 | $0 | 25,731 (Direct) | View |
| 2026-03-05 Option Award | 2026-03-23 11:53 am | N/A 2036-03-05 | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 50,024 | $0 | 83,968 (Direct) | View |
| 2026-03-05 Option Award | 2026-03-23 11:53 am | N/A 2036-03-05 | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 16,066 | $0 | 33,738 (Direct) | View |
| 2026-03-05 Option Award | 2026-03-23 11:51 am | N/A 2036-03-05 | REPLIGEN CORP | RGEN | Garland Jason K CFO | 16,066 | $0 | 28,407 (Direct) | View |
| 2026-03-04 Tax Withholding | 2026-03-05 1:28 pm | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 62 | $125.84 | 17,672 (Direct) | View |
| 2026-03-04 Option Award | 2026-03-05 1:28 pm | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 125 | $0 | 17,672 (Direct) | View |
| 2026-03-04 Tax Withholding | 2026-03-05 1:25 pm | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 42 | $125.84 | 14,778 (Direct) | View |
| 2026-03-04 Option Award | 2026-03-05 1:25 pm | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 125 | $0 | 14,778 (Direct) | View |
| 2026-02-27 Tax Withholding | 2026-03-03 2:02 pm | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 1,478 | $128.73 | 17,609 (Direct) | View |
| 2026-03-02 Tax Withholding | 2026-03-03 2:02 pm | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 2,433 | $124.97 | 17,609 (Direct) | View |
| 2026-02-27 Tax Withholding | 2026-03-03 1:39 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 344 | $128.73 | 33,944 (Direct) | View |
| 2026-03-02 Tax Withholding | 2026-03-03 1:39 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 1,610 | $124.97 | 33,944 (Direct) | View |
| 2026-03-02 Tax Withholding | 2026-03-03 1:38 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 9,897 | $124.97 | 89,062 (Direct) | View |
| 2026-02-27 Tax Withholding | 2026-03-03 1:33 pm | N/A N/A | REPLIGEN CORP | RGEN | Garland Jason K CFO | 327 | $128.73 | 12,341 (Direct) | View |
| 2026-03-02 Tax Withholding | 2026-03-03 1:33 pm | N/A N/A | REPLIGEN CORP | RGEN | Garland Jason K CFO | 715 | $124.97 | 12,341 (Direct) | View |
| 2026-02-27 Tax Withholding | 2026-03-03 1:30 pm | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 444 | $128.73 | 14,695 (Direct) | View |
| 2026-03-02 Tax Withholding | 2026-03-03 1:30 pm | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 923 | $124.97 | 14,695 (Direct) | View |
| 2026-03-02 Tax Withholding | 2026-03-03 12:48 pm | N/A N/A | REPLIGEN CORP | RGEN | Douglass Brian Robb CHIEF PRODUCT OFFICER | 221 | $124.97 | 8,319 (Direct) | View |
| 2025-12-31 Option Award | 2026-01-12 4:32 pm | N/A 2035-12-31 | REPLIGEN CORP | RGEN | Douglass Brian Robb CHIEF PRODUCT OFFICER | 4,431 | $0 | 10,683 (Direct) | View |
Ownership | 2026-01-12 4:30 pm | N/A N/A | REPLIGEN CORP | RGEN | Douglass Brian Robb CHIEF PRODUCT OFFICER | 0 | $0 | 16,252 (Direct) | View |
| 2025-12-16 Exercise | 2025-12-17 4:30 pm | N/A 2026-05-11 | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 3,366 | $0 | 39,988 (Direct) | View |
| 2025-12-16 Exercise | 2025-12-17 4:30 pm | N/A N/A | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 3,366 | $26.12 | 39,988 (Direct) | View |
| 2025-12-04 Other | 2025-12-08 4:30 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 2,000 | $0 | 100,959 (Direct) | View |