Karen A. Dawes is Director at REPLIGEN CORP (RGEN). They have made 31 open-market trades across 4 companies since 2006, most recently 2026-05-14.
CIK 0001261506
9 open-market purchases totalling $129K since 2006, against 22 sales. Across 9 scored buys the stock is up 2.1% at ninety days, and 1.3 points ahead of the S&P over the same stretch.
9 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| RGEN | 92,816 | $16.3M |
| ASRT | 84,589 | $2.0M |
| DEPO | 12,867 | $94K |
| VACC | 1,700 | $9K |
| PDLI | 2,250 | $6K |
| Total | $18.4M |
Shares reported on the most recent Form 4, priced at the 2026-05-18 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 11% | 100% | 100% |
| Avg Move | -14.1% | +2.5% | +2.1% |
| Alpha | -8.7% | +2.2% | +1.3% |
| Scored | 9 | 9 | 9 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RGEN | SELL | 2025-12-17 | 2025-12-18 | $161.00 | $44K | +3.5% | +3.2% | -25.7% |
| RGEN | SELL | 2024-02-27 | 2024-02-28 | $193.35 | $193K | -2.0% | -7.2% | -20.5% |
| RGEN | SELL | 2023-08-29 | 2023-08-30 | $171.38 | $146K | -8.9% | -8.2% | -9.4% |
| RGEN | SELL | 2022-09-09 | 2022-09-09 | $227.17 | $352K | -11.0% | -10.3% | -25.0% |
| RGEN | SELL | 2022-05-25 | 2022-05-26 | $150.51 | $4.4M | +4.8% | +3.4% | +44.1% |
| RGEN | SELL | 2021-11-10 | 2021-11-12 | $263.91 | $2.5M | +4.6% | -0.5% | -25.5% |
| RGEN | SELL | 2021-11-02 | 2021-11-04 | $304.01 | $1.4M | +1.1% | -6.9% | -23.3% |
| RGEN | SELL | 2021-09-14 | 2021-09-15 | $294.26 | $81K | +3.6% | -10.0% | -14.8% |
| RGEN | SELL | 2021-09-01 | 2021-09-02 | $283.91 | $2.0M | +3.0% | -5.1% | -3.8% |
| RGEN | SELL | 2021-08-17 | 2021-08-19 | $254.14 | $9.6M | +8.5% | +17.3% | +6.3% |
| RGEN | SELL | 2021-07-20 | 2021-07-22 | $202.09 | $1.9M | +20.7% | +28.9% | +30.0% |
| RGEN | SELL · Routine | 2021-07-13 | 2021-07-15 | $202.23 | $307K | +14.5% | +29.5% | +27.9% |
| RGEN | SELL | 2021-07-13 | 2021-07-22 | $202.23 | $614K | +20.7% | +28.9% | +30.0% |
| RGEN | SELL | 2021-05-11 | 2021-05-13 | $176.85 | $101K | +6.2% | +15.5% | +47.7% |
| VACC | BUY | 2021-05-04 | 2021-05-06 | $17.00 | $29K | +22.3% | +11.8% | +7.7% |
| RGEN | SELL | 2020-06-18 | 2020-06-22 | $115.20 | $4.3M | +6.6% | +14.4% | +19.4% |
| RGEN | SELL | 2020-05-20 | 2020-05-21 | $139.44 | $72K | -9.5% | -15.3% | +5.2% |
| RGEN | SELL | 2020-05-18 | 2020-05-21 | $137.16 | $317K | -9.5% | -15.3% | +5.2% |
| ASRT | SELL · 10b5-1 | 2020-05-08 | 2020-05-11 | $0.79 | $13K | +0.2% | +11.7% | -7.2% |
| RGEN | SELL | 2020-04-20 | 2020-05-21 | $104.57 | $2.6M | -9.5% | -15.3% | +5.2% |
| RGEN | SELL | 2020-02-21 | 2020-02-24 | $98.61 | $759K | +1.2% | -3.9% | +43.9% |
| RGEN | SELL | 2019-06-17 | 2019-06-19 | $77.35 | $200K | +4.7% | +5.6% | -1.4% |
| ASRT | SELL · 10b5-1 | 2019-06-13 | 2019-06-14 | $3.18 | $40K | +11.7% | +6.2% | -56.5% |
| ASRT | SELL | 2018-12-03 | 2018-12-04 | $4.84 | $41K | -15.8% | -15.0% | -10.3% |
| RGEN | SELL | 2018-05-11 | 2018-05-15 | $41.80 | $836K | +3.7% | +6.8% | +17.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.