CIK 0000730272 · Large accelerated filer
REPLIGEN CORP
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- RGEN
- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 042729386
- Phone
- 7814499560
- Business address
- 41 SEYON STREET, BUILDING 1, SUITE 100, WALTHAM, MA, 02453
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $5,953,260
- in 5 filings, $6.0M under 10b5-1 plans
Net −$5,953,260. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-03-02 | Hunt Anthony Director | Shares withheld for taxes | −9,897 | $124.97 | $1.2M | 89,062 |
| 2026-03-02 | Garland Jason K CFO | Shares withheld for taxes | −715 | $124.97 | $89K | 12,341 |
| 2026-03-02 | KURIYEL RALF Senior VP, R&D | Shares withheld for taxes | −923 | $124.97 | $115K | 14,695 |
| 2026-03-02 | Douglass Brian Robb CHIEF PRODUCT OFFICER | Shares withheld for taxes | −221 | $124.97 | $28K | 8,319 |
| 2026-02-27 | Bylund James Chief Operating Officer | Shares withheld for taxes | −1,478 | $128.73 | $190K | 20,042 |
| 2026-02-27 | Loeillot Olivier Chief Executive Officer | Shares withheld for taxes | −344 | $128.73 | $44K | 35,554 |
| 2026-02-27 | Garland Jason K CFO | Shares withheld for taxes | −327 | $128.73 | $42K | 13,056 |
| 2026-02-27 | KURIYEL RALF Senior VP, R&D | Shares withheld for taxes | −444 | $128.73 | $57K | 15,618 |
| 2025-12-31 | Douglass Brian Robb CHIEF PRODUCT OFFICER | Grant or award | +2,288 | 8,540 | ||
| 2025-12-31 | Douglass Brian Robb CHIEF PRODUCT OFFICER | Grant or award · Stock Option (Right to Buy) | +2,143 | 2,143 | ||
| 2025-12-17 | DAWES KAREN A Director | Sale | −275 | $161.00 | $44K | 91,821 |
| 2025-12-16 | MUIR GLENN P Director | Option exercise | +3,366 | $26.12 | $88K | 36,622 |
| 2025-12-16 | MUIR GLENN P Director | Option exercise · Stock Option (Right to Buy) | +3,366 | 3,366 | ||
| 2025-12-04 | Hunt Anthony Director | Other disposition | −2,000 | 98,959 | ||
| 2025-11-25 | Loeillot Olivier Chief Executive Officer | Sale 10b5-1 | −7,041 | $170.00 | $1.2M | 35,898 |
| 2025-11-18 | Bylund James Chief Operating Officer | Sale | −2,191 | $151.21 | $331K | 21,520 |
| 2025-11-13 | Hunt Anthony Director | Sale | −1,784 | $151.01 | $269K | 98,959 |
| 2025-11-13 | Hunt Anthony Director | Sale | −2,100 | $152.17 | $320K | 96,859 |
| 2025-11-13 | Hunt Anthony Director | Sale | −2,923 | $153.14 | $448K | 93,936 |
| 2025-11-13 | Hunt Anthony Director | Sale | −2,500 | $154.32 | $386K | 91,436 |
Page 4 of 11 · 215 trades