KURIYEL RALF has filed 26 insider transactions across 1 company since February 2024.
Most recent transaction: a grant/award of 5669 shares of REPLIGEN CORP ($RGEN) on March 05, 2026.
Activity breakdown: 0 open-market purchases and 4 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 5, 2026 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | A | Stock Option (Right to Buy) | 5669 | $0.00 | 5,669.0000 | 56,290,749 | 9999.99% | 0.01% |
| March 5, 2026 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | A | Common Stock | 5284 | $0.00 | 20,062.0000 | 56,290,749 | 35.76% | 0.01% |
| March 4, 2026 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 42 | $125.84 | 14,778.0000 | 56,290,749 | 0.28% | 0.00% |
| March 4, 2026 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | A | Common Stock | 125 | $0.00 | 14,820.0000 | 56,290,749 | 0.85% | 0.00% |
| Feb. 27, 2026 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 444 | $128.73 | 15,618.0000 | 56,290,749 | 2.76% | 0.00% |
| March 2, 2026 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 923 | $124.97 | 14,695.0000 | 56,290,749 | 5.91% | 0.00% |
| March 3, 2025 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | A | Stock Option (Right to Buy) | 4542 | $0.00 | 4,542.0000 | 0 | 9999.99% | 0.00% |
| March 3, 2025 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | A | Common Stock | 4826 | $0.00 | 16,448.0000 | 0 | 41.52% | 0.00% |
| March 3, 2025 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 386 | $155.38 | 16,062.0000 | 0 | 2.35% | 0.00% |
| Feb. 27, 2025 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 391 | $156.54 | 11,622.0000 | 0 | 3.25% | 0.00% |
| Feb. 24, 2025 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 275 | $164.74 | 12,013.0000 | 0 | 2.24% | 0.00% |
| Aug. 2, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | S | Common Stock | 6973 | $159.36 | 12,288.0000 | 0 | 36.20% | 0.00% |
| Aug. 2, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | M | Common Stock | 175 | $86.10 | 12,463.0000 | 0 | 1.42% | 0.00% |
| Aug. 2, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | S | Common Stock | 175 | $158.85 | 12,288.0000 | 0 | 1.40% | 0.00% |
| Aug. 2, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | M | Stock Option (Right to Buy) | 175 | $0.00 | 0.0000 | 0 | 0.00% | 0.00% |
| Aug. 1, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | S | Common Stock | 4465 | $165.67 | 19,261.0000 | 0 | 18.82% | 0.00% |
| May 14, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 534 | $163.34 | 23,726.0000 | 0 | 2.20% | 0.00% |
| March 11, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | S | Common Stock | 3517 | $193.73 | 24,260.0000 | 0 | 12.66% | 0.00% |
| March 11, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | M | Common Stock | 1271 | $86.10 | 27,777.0000 | 0 | 4.80% | 0.00% |
| March 11, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | M | Stock Option (Right to Buy) | 1271 | $0.00 | 0.0000 | 0 | 0.00% | 0.00% |
| March 7, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 386 | $195.72 | 26,506.0000 | 0 | 1.44% | 0.00% |
| March 4, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 135 | $193.99 | 26,892.0000 | 0 | 0.50% | 0.00% |
| March 1, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | F | Common Stock | 453 | $191.79 | 27,027.0000 | 0 | 1.65% | 0.00% |
| Feb. 29, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | A | Common Stock | 404 | $0.00 | 27,480.0000 | 0 | 1.49% | 0.00% |
| Feb. 27, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | A | Stock Option (Right to Buy) | 3497 | $0.00 | 3,497.0000 | 0 | 9999.99% | 0.00% |
| Feb. 27, 2024 | REPLIGEN CORP | $RGEN | KURIYEL RALF | Senior VP, R&D | A | Common Stock | 3520 | $0.00 | 27,076.0000 | 0 | 14.94% | 0.00% |