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 |
2024-11-21 Sale | 2024-11-22 4:52 pm | REPLIGEN CORP | RGEN | Hunt Anthony Director | 24,246 | $139.67 | $3,386,439 | 139,840 (Direct) | View |
2024-09-10 Sale | 2024-09-12 11:35 am | REPLIGEN CORP | RGEN | Hunt Anthony Director | 22,191 | $145.37 | $3,225,927 | 164,086 (Direct) | View |
2024-08-02 Sale | 2024-08-05 9:56 pm | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 7,148 | $159.35 | $1,139,016 | 12,288 (Direct) | View |
2024-08-01 Sale | 2024-08-01 8:47 pm | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 4,465 | $165.67 | $739,717 | 19,261 (Direct) | View |
2024-06-14 Purchase | 2024-06-14 6:07 pm | REPLIGEN CORP | RGEN | Madaus Martin D Director | 1,615 | $124.94 | $201,776 | 4,624 (Indirect Direct) | View |
2024-06-14 Purchase | 2024-06-14 5:42 pm | REPLIGEN CORP | RGEN | BARTHELEMY NICOLAS Director | 1,200 | $125.45 | $150,540 | 4,668 (Direct) | View |
2024-06-14 Purchase | 2024-06-14 5:41 pm | REPLIGEN CORP | RGEN | Hunt Anthony Chief Executive Officer | 2,000 | $124.08 | $248,160 | 165,177 (Direct) | View |
2024-05-21 Sale | 2024-05-22 5:14 pm | REPLIGEN CORP | RGEN | Hunt Anthony Chief Executive Officer | 20,072 | $168.26 | $3,377,283 | 163,177 (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 |
2025-03-03 Option Award | 2025-03-04 1:42 pm | N/A 2035-03-03 | REPLIGEN CORP | RGEN | Garland Jason K CFO | 12,491 | $0 | 19,851 (Direct) | View |
2025-03-03 Tax Withholding | 2025-03-04 1:41 pm | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 386 | $155.38 | 20,604 (Direct) | View |
2025-03-03 Option Award | 2025-03-04 1:41 pm | N/A 2035-03-03 | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 9,368 | $0 | 20,604 (Direct) | View |
2025-03-03 Tax Withholding | 2025-03-04 1:30 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 10,142 | $155.38 | 136,301 (Direct) | View |
2025-03-03 Tax Withholding | 2025-03-04 1:29 pm | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 1,239 | $155.38 | 30,015 (Direct) | View |
2025-03-03 Option Award | 2025-03-04 1:29 pm | N/A 2035-03-03 | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 12,491 | $0 | 30,015 (Direct) | View |
2025-03-03 Option Award | 2025-03-04 1:18 pm | N/A 2035-03-03 | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 28,107 | $0 | 60,320 (Direct) | View |
2025-02-27 Tax Withholding | 2025-02-28 4:36 pm | N/A N/A | REPLIGEN CORP | RGEN | Garland Jason K CFO | 316 | $156.54 | 7,360 (Direct) | View |
2025-02-27 Tax Withholding | 2025-02-28 4:30 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 343 | $156.54 | 32,213 (Direct) | View |
2025-02-27 Tax Withholding | 2025-02-28 4:29 pm | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 1,285 | $156.54 | 18,763 (Direct) | View |
2025-02-27 Tax Withholding | 2025-02-28 4:28 pm | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 391 | $156.54 | 11,622 (Direct) | View |
2025-02-27 Tax Withholding | 2025-02-28 4:26 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 2,825 | $156.54 | 146,443 (Direct) | View |
2025-02-24 Tax Withholding | 2025-02-25 10:28 am | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 275 | $164.74 | 12,013 (Direct) | View |
2025-02-24 Tax Withholding | 2025-02-25 10:27 am | N/A N/A | REPLIGEN CORP | RGEN | Bylund James Chief Operating Officer | 543 | $164.74 | 20,048 (Direct) | View |
2025-02-24 Tax Withholding | 2025-02-25 10:18 am | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 2,380 | $164.74 | 149,268 (Direct) | View |
2024-12-05 Exercise | 2024-12-05 8:26 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 11,808 | $33.87 | 160,504 (Direct) | View |
2024-12-05 Exercise | 2024-12-05 8:26 pm | N/A 2028-02-29 | REPLIGEN CORP | RGEN | Hunt Anthony Director | 11,808 | $0 | 160,504 (Direct) | View |
2024-11-21 Exercise | 2024-11-22 4:52 pm | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 24,246 | $33.87 | 139,840 (Direct) | View |
2024-11-21 Exercise | 2024-11-22 4:52 pm | N/A 2028-02-29 | REPLIGEN CORP | RGEN | Hunt Anthony Director | 24,246 | $0 | 139,840 (Direct) | View |
2024-11-20 Tax Withholding | 2024-11-21 2:10 pm | N/A N/A | REPLIGEN CORP | RGEN | Garland Jason K CFO | 367 | $123.41 | 7,676 (Direct) | View |
2024-11-20 Tax Withholding | 2024-11-21 1:32 pm | N/A N/A | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 861 | $123.41 | 32,556 (Direct) | View |
2024-11-19 Exercise | 2024-11-20 2:29 pm | N/A 2025-09-14 | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 19,000 | $0 | 32,283 (Direct) | View |
2024-11-19 Exercise | 2024-11-20 2:29 pm | N/A N/A | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 19,000 | $36.29 | 32,283 (Direct) | View |
2024-09-10 Exercise | 2024-09-12 11:35 am | N/A N/A | REPLIGEN CORP | RGEN | Hunt Anthony Director | 10,000 | $33.87 | 164,086 (Direct) | View |
2024-09-10 Exercise | 2024-09-12 11:35 am | N/A 2028-02-29 | REPLIGEN CORP | RGEN | Hunt Anthony Director | 10,000 | $0 | 164,086 (Direct) | View |
2024-09-03 Option Award | 2024-09-04 8:41 pm | N/A 2034-09-03 | REPLIGEN CORP | RGEN | Loeillot Olivier Chief Executive Officer | 33,909 | $0 | 49,695 (Direct) | View |
2024-09-03 Disposition | 2024-09-04 7:25 pm | N/A 2034-02-27 | REPLIGEN CORP | RGEN | Hunt Anthony Director | 26,203 | $0 | 158,559 (Direct) | View |
2024-08-02 Exercise | 2024-08-05 9:56 pm | N/A 2030-02-27 | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 175 | $0 | 12,288 (Direct) | View |
2024-08-02 Exercise | 2024-08-05 9:56 pm | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 175 | $86.1 | 12,288 (Direct) | View |
2024-08-01 Exercise | 2024-08-01 5:04 pm | N/A 2025-09-14 | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 5,000 | $0 | 13,283 (Direct) | View |
2024-08-01 Exercise | 2024-08-01 5:04 pm | N/A N/A | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 5,000 | $36.29 | 13,283 (Direct) | View |
2024-06-14 Exercise | 2024-06-14 5:33 pm | N/A 2029-05-15 | REPLIGEN CORP | RGEN | DAWES KAREN A Director | 2,953 | $0 | 88,170 (Direct) | View |
2024-06-14 Exercise | 2024-06-14 5:33 pm | N/A N/A | REPLIGEN CORP | RGEN | DAWES KAREN A Director | 2,953 | $67.71 | 88,170 (Direct) | View |
2024-05-16 Option Award | 2024-05-20 7:51 pm | 2025-05-16 2034-05-16 | REPLIGEN CORP | RGEN | Madaus Martin D Director | 2,077 | $0 | 4,385 (Direct) | View |
2024-05-16 Option Award | 2024-05-20 7:32 pm | 2025-05-16 2034-05-16 | REPLIGEN CORP | RGEN | Mhatre Rohin Director | 2,077 | $0 | 4,422 (Direct) | View |
2024-05-16 Option Award | 2024-05-20 7:30 pm | 2025-05-16 2034-05-16 | REPLIGEN CORP | RGEN | Pax Margaret Director | 2,077 | $0 | 2,169 (Direct) | View |
2024-05-16 Option Award | 2024-05-20 7:27 pm | 2025-05-16 2034-05-16 | REPLIGEN CORP | RGEN | Konstantinov Konstantin Director | 2,077 | $0 | 3,297 (Direct) | View |
2024-05-16 Option Award | 2024-05-20 6:53 pm | 2025-05-16 2034-05-16 | REPLIGEN CORP | RGEN | EGLINTON MANNER CARRIE Director | 2,077 | $0 | 4,869 (Direct) | View |
2024-05-16 Option Award | 2024-05-20 6:50 pm | 2025-05-16 2034-05-16 | REPLIGEN CORP | RGEN | BARTHELEMY NICOLAS Director | 2,077 | $0 | 4,844 (Direct) | View |
2024-05-16 Option Award | 2024-05-20 6:50 pm | 2025-05-16 2034-05-16 | REPLIGEN CORP | RGEN | DAWES KAREN A Director | 2,379 | $0 | 89,746 (Direct) | View |
2024-05-16 Option Award | 2024-05-20 6:49 pm | 2025-05-16 2034-05-16 | REPLIGEN CORP | RGEN | MUIR GLENN P Director | 2,077 | $0 | 9,659 (Direct) | View |
2024-05-14 Tax Withholding | 2024-05-15 8:18 pm | N/A N/A | REPLIGEN CORP | RGEN | Gebski Christine See Remarks | 334 | $163.34 | 27,419 (Direct) | View |
2024-05-14 Tax Withholding | 2024-05-15 8:17 pm | N/A N/A | REPLIGEN CORP | RGEN | KURIYEL RALF Senior VP, R&D | 534 | $163.34 | 23,726 (Direct) | View |