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 |
| 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 |
| 2025-11-13 Sale | 2025-11-14 4:30 pm | REPLIGEN CORP | RGEN | Hunt Anthony Director | 20,000 | $154.61 | $3,092,278 | 98,455 (Direct) | View |
| 2025-11-12 Sale | 2025-11-13 4:30 pm | REPLIGEN CORP | RGEN | Hunt Anthony Director | 25,000 | $156.88 | $3,921,940 | 258,087 (Direct) | View |
| 2025-09-10 Sale | 2025-09-11 2:55 pm | REPLIGEN CORP | RGEN | Hunt Anthony Director | 29,111 | $120.52 | $3,508,389 | 283,087 (Direct) | View |
| 2025-08-08 Purchase | 2025-08-12 12:47 pm | REPLIGEN CORP | RGEN | Madaus Martin D Director | 1,800 | $112.13 | $201,830 | 7,397 (Indirect Direct) | View |
| 2025-05-15 Sale | 2025-05-16 3:02 pm | REPLIGEN CORP | RGEN | Hunt Anthony Director | 26,447 | $123.71 | $3,271,688 | 109,854 (Direct) | View |
| 2025-03-17 Sale | 2025-03-19 4:21 pm | REPLIGEN CORP | RGEN | Hunt Anthony Director | 26,756 | $152.51 | $4,080,663 | 338,645 (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 |
| 2026-03-05 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 |
| 2026-03-02 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 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 1:39 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 1,610 | $124.97 | 33,944 (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 1:38 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 9,897 | $124.97 | 89,062 (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 1:33 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 1:30 pm | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 923 | $124.97 | 14,695 (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 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 N/A | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 3,366 | $26.12 | 39,988 (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 |
| 2025-12-04 Other | 2025-12-08 4:30 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 2,000 | $0 | 100,959 (Direct) | View |
| 2025-11-13 Exercise | 2025-11-14 4:30 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 2,952 | $33.87 | 98,455 (Direct) | View |
| 2025-11-13 Exercise | 2025-11-14 4:30 pm | N/A 2028-02-29 | REPLIGEN CORP | RGEN | Hunt Anthony Director | 2,952 | $0 | 98,455 (Direct) | View |
| 2025-11-12 Exercise | 2025-11-13 4:30 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 25,000 | $33.87 | 258,087 (Direct) | View |
| 2025-11-12 Exercise | 2025-11-13 4:30 pm | N/A 2028-03-01 | REPLIGEN CORP | RGEN | Hunt Anthony Director | 25,000 | $0 | 258,087 (Direct) | View |
| 2025-10-02 Tax Withholding | 2025-10-06 10:59 am | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 1,248 | $145.23 | 42,939 (Direct) | View |
| 2025-09-25 Tax Withholding | 2025-09-26 2:30 pm | N/A N/A | REPLIGEN CORP | RGEN | Garland Jason K CFO | 412 | $121.68 | 13,383 (Direct) | View |
| 2025-09-10 Exercise | 2025-09-11 2:55 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 20,000 | $33.87 | 283,087 (Direct) | View |
| 2025-09-10 Exercise | 2025-09-11 2:55 pm | N/A 2028-03-01 | REPLIGEN CORP | RGEN | Hunt Anthony Director | 20,000 | $0 | 283,087 (Direct) | View |
| 2025-09-02 Option Award | 2025-09-04 12:47 pm | N/A 2035-09-02 | REPLIGEN CORP | RGEN | Hughes Violetta CHIEF ACCOUNTING OFFICER | 8,056 | $0 | 8,056 (Direct) | View |
| 2025-09-03 Tax Withholding | 2025-09-04 10:55 am | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 2,506 | $116.18 | 44,187 (Direct) | View |
| 2025-05-15 Option Award | 2025-05-21 3:00 pm | 2026-05-15 2035-05-15 | REPLIGEN CORP | RGEN | BARTHELEMY NICOLAS Director | 2,773 | $0 | 6,241 (Direct) | View |
| 2025-05-15 Option Award | 2025-05-19 8:26 pm | 2026-05-15 2035-05-15 | REPLIGEN CORP | RGEN | Konstantinov Konstantin Director | 2,773 | $0 | 4,694 (Direct) | View |
| 2025-05-15 Option Award | 2025-05-19 8:19 pm | 2026-05-15 2035-05-15 | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 2,773 | $0 | 35,056 (Direct) | View |
| 2025-05-15 Option Award | 2025-05-19 8:16 pm | 2026-05-15 2035-05-15 | REPLIGEN CORP | RGEN | EGLINTON MANNER CARRIE Director | 2,773 | $0 | 6,266 (Direct) | View |
| 2025-05-15 Option Award | 2025-05-19 3:27 pm | 2026-05-15 2035-05-15 | REPLIGEN CORP | RGEN | DAWES KAREN A Director | 2,773 | $0 | 93,896 (Direct) | View |
| 2025-05-15 Option Award | 2025-05-19 3:05 pm | 2026-05-15 2035-05-15 | REPLIGEN CORP | RGEN | Madaus Martin D Director | 2,773 | $0 | 7,397 (Direct) | View |
| 2025-05-15 Option Award | 2025-05-19 2:59 pm | 2026-05-15 2035-05-15 | REPLIGEN CORP | RGEN | Pax Margaret Director | 2,773 | $0 | 3,816 (Direct) | View |
| 2025-05-15 Option Award | 2025-05-19 2:38 pm | 2026-05-15 2035-05-15 | REPLIGEN CORP | RGEN | Mhatre Rohin Director | 2,773 | $0 | 5,819 (Direct) | View |
| 2025-04-01 Tax Withholding | 2025-04-02 10:33 am | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 454 | $128.5 | 23,711 (Direct) | View |
| 2025-03-13 Tax Withholding | 2025-03-20 1:51 pm | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 175 | $142.44 | 24,165 (Direct) | View |
| 2025-03-13 Option Award | 2025-03-20 1:51 pm | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 381 | $0 | 24,165 (Direct) | View |
| 2025-03-17 Exercise | 2025-03-19 4:21 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 21,756 | $59.52 | 338,645 (Direct) | View |
| 2025-03-17 Exercise | 2025-03-19 4:21 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 5,000 | $33.87 | 338,645 (Direct) | View |
| 2025-03-17 Exercise | 2025-03-19 4:21 pm | N/A 2028-03-01 | REPLIGEN CORP | RGEN | Hunt Anthony Director | 26,756 | $0 | 338,645 (Direct) | View |