Karen A Dawes insider trades: Repligen (RGEN) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Karen reports to the SEC
and 1 more company
Open-market buys and sales
33 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Dec 17, 2025 | RGEN | ↓ Sell | 275 | $161.00 | $44K | Direct | Dec 18, 2025 (1d) |
| Feb 27, 2024 | RGEN | ↓ Sell | 1,000 | $193.35 | $193K | Direct | Feb 28, 2024 (1d) |
| Aug 29, 2023 | RGEN | ↓ Sell | 850 | $171.38 | $146K | Direct | Aug 30, 2023 (1d) |
| Sep 9, 2022 | RGEN | ↓ Sell | 775 | $227.17 | $176K | Direct | Sep 9, 2022 (0d) |
| May 25, 2022 | RGEN | ↓ Sell | 14,715 | $150.51 | $2.2M | Direct | May 26, 2022 (1d) |
| Nov 10, 2021 | RGEN | ↓ Sell | 4,783 | $263.93 | $1.3M | Direct | Nov 12, 2021 (2d) |
| Nov 2, 2021 | RGEN | ↓ Sell | 2,400 | $303.94 | $729K | Direct | Nov 4, 2021 (2d) |
| Sep 14, 2021 | RGEN | ↓ Sell | 274 | $294.26 | $81K | Direct | Sep 15, 2021 (1d) |
| Sep 1, 2021 | RGEN | ↓ Sell | 3,459 | $283.91 | $982K | Direct | Sep 2, 2021 (1d) |
| Aug 18, 2021 | RGEN | ↓ Sell | 18,956 | $254.18 | $4.8M | Direct | Aug 19, 2021 (1d) |
| Jul 20, 2021 | RGEN | ↓ Sell | 4,585 | $202.09 | $927K | Direct | Jul 22, 2021 (2d) |
| Jul 13, 2021 | RGEN | ↓ Sell | 1,520 | $202.23 | $307K | Direct | Jul 15, 2021 (2d) |
| May 11, 2021 | RGEN | ↓ Sell | 285 | $176.85 | $50K | Direct | May 13, 2021 (2d) |
| May 4, 2021 | VACC | ↑ Buy | 1,700 | $17.00 | $29K | Direct | May 6, 2021 (2d) |
| Jun 18, 2020 | RGEN | ↓ Sell | 18,705 | $115.20 | $2.2M | Direct | Jun 22, 2020 (4d) |
| May 20, 2020 | RGEN | ↓ Sell | 517 | $139.44 | $72K | Direct | May 21, 2020 (1d) |
| May 18, 2020 | RGEN | ↓ Sell | 1,600 | $137.78 | $220K | Direct | May 19, 2020 (1d) |
| May 8, 2020 | ASRT | ↓ Sell | 15,834 | $0.79 | $13K | Direct | May 11, 2020 (3d) |
| Apr 20, 2020 | RGEN | ↓ Sell | 12,200 | $104.57 | $1.3M | Direct | Apr 22, 2020 (2d) |
| Feb 21, 2020 | RGEN | ↓ Sell | 4,000 | $98.70 | $395K | Direct | Feb 24, 2020 (3d) |
| Jun 17, 2019 | RGEN | ↓ Sell | 1,295 | $77.35 | $100K | Direct | Jun 19, 2019 (2d) |
| Jun 13, 2019 | ASRT | ↓ Sell | 12,500 | $3.18 | $40K | Direct | Jun 14, 2019 (1d) |
| Dec 3, 2018 | ASRT | ↓ Sell | 8,421 | $4.84 | $41K | Direct | Dec 4, 2018 (1d) |
| May 11, 2018 | RGEN | ↓ Sell | 20,000 | $41.80 | $836K | Direct | May 15, 2018 (4d) |
| Mar 21, 2017 | RGEN | ↓ Sell | 2,521 | $34.12 | $86K | Direct | Mar 22, 2017 (1d) |
| Jun 21, 2013 | RGEN | ↑ Buy | 1,000 | $7.70 | $8K | Direct | Jun 21, 2013 (0d) |
| Mar 6, 2013 | DEPO | ↑ Buy | 2,000 | $5.96 | $12K | Direct | Mar 6, 2013 (0d) |
| Aug 12, 2011 | RGEN | ↑ Buy | 10,000 | $3.49 | $35K | Direct | Aug 15, 2011 (3d) |
| Jun 14, 2011 | RGEN | ↑ Buy | 4,500 | $3.57 | $16K | Direct | Jun 15, 2011 (1d) |
| Jun 14, 2011 | DEPO | ↑ Buy | 1,000 | $8.23 | $8K | Direct | Jun 15, 2011 (1d) |
| Dec 1, 2008 | RGEN | ↑ Buy | 2,000 | $3.50 | $7K | Direct | Dec 3, 2008 (2d) |
| Dec 1, 2008 | DEPO | ↑ Buy | 5,000 | $1.44 | $7K | Direct | Dec 2, 2008 (1d) |
| Sep 1, 2006 | RGEN | ↑ Buy | 2,000 | $3.33 | $7K | Direct | Sep 5, 2006 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other RGEN insiders
Open-market trades in the last 12 months
About Karen A Dawes's insider trades
Karen A Dawes is an insider at Repligen (RGEN). Since Sep 1, 2006, Karen has reported 9 open-market purchases worth $129K and 24 sales worth $17.2M on SEC Form 4. In the last 12 months: 1 sale ($44K).
Their filings also include grants and awards (47 filings), option exercises (16 filings), shares withheld for taxes (3 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every RGEN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.