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 |
|---|---|---|---|---|---|---|
| 2026-08-20 | Loeillot Olivier Chief Executive Officer | Option exercise 10b5-1 | +5,426 | $141.79 | $769K | 59,672 |
| 2026-08-20 | Loeillot Olivier Chief Executive Officer | Sale 10b5-1 | −5,426 | $180.00 | $977K | 54,246 |
| 2026-08-20 | Loeillot Olivier Chief Executive Officer | Option exercise · Stock Option (Right to Buy) 10b5-1 | −5,426 | 10,852 | ||
| 2026-07-16 | Garland Jason K CFO | Sale 10b5-1 | −530 | $150.00 | $80K | 18,829 |
| 2026-06-25 | Garland Jason K CFO | Sale 10b5-1 | −733 | $145.00 | $106K | 19,359 |
| 2026-05-14 | Konstantinov Konstantin Director | Grant or award | +995 | 3,889 | ||
| 2026-05-14 | Konstantinov Konstantin Director | Grant or award · Stock Option (Right to Buy) | +2,239 | 2,239 | ||
| 2026-05-14 | Madaus Martin D Director | Grant or award | +995 | 6,581 | ||
| 2026-05-14 | Madaus Martin D Director | Grant or award · Stock Option (Right to Buy) | +2,239 | 2,239 | ||
| 2026-05-14 | EGLINTON MANNER CARRIE Director | Grant or award | +995 | 5,461 | ||
| 2026-05-14 | EGLINTON MANNER CARRIE Director | Grant or award · Stock Option (Right to Buy) | +2,239 | 2,239 | ||
| 2026-05-14 | MUIR GLENN P Director | Grant or award | +995 | 40,051 | ||
| 2026-05-14 | MUIR GLENN P Director | Grant or award · Stock Option (Right to Buy) | +2,239 | 2,239 | ||
| 2026-05-14 | Mhatre Rohin Director | Grant or award | +995 | 5,014 | ||
| 2026-05-14 | Mhatre Rohin Director | Grant or award · Stock Option (Right to Buy) | +2,239 | 2,239 | ||
| 2026-05-14 | Pax Margaret Director | Grant or award | +995 | 3,011 | ||
| 2026-05-14 | Pax Margaret Director | Grant or award · Stock Option (Right to Buy) | +2,239 | 2,239 | ||
| 2026-05-14 | DAWES KAREN A Director | Grant or award | +995 | 92,816 | ||
| 2026-05-14 | DAWES KAREN A Director | Grant or award · Stock Option (Right to Buy) | +2,239 | 2,239 | ||
| 2026-05-14 | BARTHELEMY NICOLAS Director | Grant or award | +995 | 5,436 |
Page 2 of 11 · 215 trades