Karen A. Dawes serves as Executive at REPLIGEN CORP, where they oversee executive responsibilities. Since joining the company, Karen A. Dawes has executed 145 insider transactions totaling $19.1M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 17, 2025 involved selling 275 shares valued at $44.3K.
Karen A. Dawes currently holds 91,821 shares of REPLIGEN CORP (RGEN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Karen A. Dawes has been a net seller of RGEN stock. They have purchased $128.6K and sold $19.0M worth of shares.
Karen A. Dawes's most recent insider trade was on Dec 17, 2025, when they sold 275 shares at $161.00 per share.
Get notified when new Form 4 filings are submitted
| $67.71 |
| Discretionary |
| May 16, 2024 | RGEN | $0 | Award | 803 | $N/A | Discretionary |
| Feb 27, 2024 | RGEN | $194.6K | Option Exercise | 4,626 | $42.07 | Discretionary |
| Feb 27, 2024 | RGEN | $193.3K | Sale | 1,000 | $193.35 | Discretionary |
| Aug 29, 2023 | RGEN | $133.9K | Option Exercise | 7,392 | $18.12 | Discretionary |
| Aug 29, 2023 | RGEN | $145.7K | Sale | 850 | $171.38 | Discretionary |
| May 18, 2023 | RGEN | $0 | Award | 798 | $N/A | Discretionary |
| Sep 9, 2022 | RGEN | $176.1K | Sale | 775 | $227.17 | Discretionary |
| May 26, 2022 | RGEN | $0 | Award | 644 | $N/A | Discretionary |
| May 25, 2022 | RGEN | $1.2M | Sale | 7,677 | $150.19 | Discretionary |
| May 25, 2022 | RGEN | $113.4K | Sale | 742 | $152.84 | Discretionary |
| May 25, 2022 | RGEN | $285.3K | Sale | 1,875 | $152.14 | Discretionary |
| May 25, 2022 | RGEN | $278.9K | Sale | 1,845 | $151.14 | Discretionary |
| May 25, 2022 | RGEN | $384.3K | Sale | 2,576 | $149.18 | Discretionary |
| Nov 10, 2021 | RGEN | $68.8K | Sale | 255 | $269.94 | Discretionary |
| Nov 10, 2021 | RGEN | $93.4K | Sale | 349 | $267.75 | Discretionary |
| Nov 10, 2021 | RGEN | $129.6K | Sale | 486 | $266.72 | Discretionary |
| Nov 10, 2021 | RGEN | $129.5K | Sale | 488 | $265.27 | Discretionary |
| Nov 10, 2021 | RGEN | $88.8K | Sale | 336 | $264.21 | Discretionary |
| Nov 10, 2021 | RGEN | $272.2K | Sale | 1,038 | $262.28 | Discretionary |
| Nov 10, 2021 | RGEN | $61.6K | Sale | 236 | $261.10 | Discretionary |
| Nov 10, 2021 | RGEN | $120.0K | Sale | 462 | $259.75 | Discretionary |
| Nov 10, 2021 | RGEN | $124.9K | Option Exercise | 4,783 | $26.12 | Discretionary |
| Nov 10, 2021 | RGEN | $3.8K | Sale | 14 | $271.28 | Discretionary |
| Nov 10, 2021 | RGEN | $294.6K | Sale | 1,119 | $263.23 | Discretionary |
| Nov 2, 2021 | RGEN | $134.7K | Sale | 446 | $301.97 | Discretionary |
| Nov 2, 2021 | RGEN | $161.5K | Sale | 532 | $303.48 | Discretionary |
| Nov 2, 2021 | RGEN | $37.7K | Sale | 124 | $304.23 | Discretionary |
| Nov 2, 2021 | RGEN | $214.1K | Sale | 700 | $305.91 | Discretionary |