RGEN · ISSUER CIK 730272
REPLIGEN CORP
Between Aug 1, 2026 and Oct 29, 2026, 4 REPLIGEN CORP insiders reported $0.00 of open-market purchases and $6.0M of sales on SEC Form 4.
↗4 insiders filed
Original Form 4 filings from Aug 1, 2026 to Oct 29, 2026. 5 of 5 sales were reported under a 10b5-1 plan.
$0.00Insider buying
$6.0MInsider selling
−$6.0MNet open-market
Oct 8, 2026Latest filing
| Ticker | Insider | Type | Owned | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 8, 202616:40 | Oct 6, 2026 | RGEN | CHIEF PRODUCT OFFICER | A · Grant | — | +700 | 8,685 | +9% | — | ||
| Oct 6, 202616:18 | Oct 5, 2026 | RGEN | Chief Executive Officer, Director | S · Sell10b5-1 | $187.29 | −5,535 | 45,788 | -11% | −$1.0M | ||
| Oct 6, 202616:18 | Oct 5, 2026 | RGEN | Chief Executive Officer, Director | M · Exercise10b5-1 | $154.96 | +4,202 | 49,990 | +9% | $651K | ||
| Oct 5, 202616:01 | Oct 2, 2026 | RGEN | Chief Executive Officer, Director | F · Tax | $181.70 | −1,248 | 47,121 | -3% | $227K | ||
| Sep 28, 202616:05 | Sep 25, 2026 | RGEN | CFO | F · Tax | $189.68 | −421 | 18,408 | -2% | $80K | ||
| Sep 25, 202616:09 | Sep 24, 2026 | RGEN | Chief Executive Officer, Director | S · Sell10b5-1 | $190.00 | −12,946 | 48,369 | -21% | −$2.5M | ||
| Sep 25, 202616:09 | Sep 24, 2026 | RGEN | Chief Executive Officer, Director | M · Exercise10b5-1 | $155.11 | +12,946 | 52,911 | +32% | $2.0M | ||
| Sep 22, 202616:07 | Sep 21, 2026 | RGEN | Chief Executive Officer, Director | S · Sell10b5-1 | $180.00 | −5,426 | 48,369 | -10% | −$977K | ||
| Sep 22, 202616:07 | Sep 21, 2026 | RGEN | Chief Executive Officer, Director | M · Exercise10b5-1 | $141.79 | +5,426 | 53,795 | +11% | $769K | ||
| Sep 8, 202616:13 | Sep 4, 2026 | RGEN | Chief Executive Officer, Director | S · Sell10b5-1 | $165.90 | −3,035 | 48,369 | -6% | −$504K | ||
| Sep 8, 202616:13 | Sep 3, 2026 | RGEN | Chief Executive Officer, Director | F · Tax10b5-1Late 5d | $169.61 | −2,842 | 51,404 | -5% | $482K | ||
| Sep 2, 202616:18 | Sep 1, 2026 | RGEN | CHIEF ACCOUNTING OFFICER | F · Tax | $170.02 | −277 | 6,331 | -4% | $47K | ||
| Sep 2, 202616:18 | Mar 5, 2026 | RGEN | CHIEF ACCOUNTING OFFICER | A · GrantLate 181d | — | +2,466 | 6,608 | +60% | — | ||
| Aug 21, 202616:06 | Aug 20, 2026 | RGEN | Chief Executive Officer, Director | S · Sell10b5-1 | $180.00 | −5,426 | 54,246 | -9% | −$977K | ||
| Aug 21, 202616:06 | Aug 20, 2026 | RGEN | Chief Executive Officer, Director | M · Exercise10b5-1 | $141.79 | +5,426 | 59,672 | +10% | $769K |