Douglass Brian Robb has filed 4 insider transactions across 1 company since December 2025.
Most recent transaction: a tax payment of 334 shares of REPLIGEN CORP ($RGEN) on May 07, 2026.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 7, 2026 | REPLIGEN CORP | $RGEN | Douglass Brian Robb | CHIEF PRODUCT OFFICER | F | Common Stock | 334 | $126.43 | 7,985.0000 | 56,290,749 | 4.01% | 0.00% |
| March 2, 2026 | REPLIGEN CORP | $RGEN | Douglass Brian Robb | CHIEF PRODUCT OFFICER | F | Common Stock | 221 | $124.97 | 8,319.0000 | 56,290,749 | 2.59% | 0.00% |
| Dec. 31, 2025 | REPLIGEN CORP | $RGEN | Douglass Brian Robb | CHIEF PRODUCT OFFICER | A | Common Stock | 2288 | $0.00 | 8,540.0000 | 56,290,749 | 36.60% | 0.00% |
| Dec. 31, 2025 | REPLIGEN CORP | $RGEN | Douglass Brian Robb | CHIEF PRODUCT OFFICER | A | Stock Option (Right to Buy) | 2143 | $0.00 | 2,143.0000 | 56,290,749 | 9999.99% | 0.00% |