Michelle Robertson is CFO at Editas Medicine, Inc. (EDIT). They have made 14 open-market trades across 3 companies since 2019, most recently 2026-05-21.
CIK 0001755098
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 14 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VSTM | 52,666 | $457K |
| MNTA | 6,813 | $358K |
| EDIT | 106,610 | $252K |
| GERN | 27,500 | $32K |
| Total | $1.1M |
Shares reported on the most recent Form 4, priced at the 2026-05-26 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| GERN | SELL | 2026-02-18 | 2026-02-19 | $1.94 | $19K | -24.2% | -18.7% | -33.7% |
| EDIT | SELL | 2023-05-11 | 2023-05-15 | $9.87 | $9K | -7.1% | +13.5% | -11.3% |
| EDIT | SELL | 2023-03-03 | 2023-03-06 | $8.89 | $2K | -0.8% | -20.0% | +10.3% |
| EDIT | SELL | 2023-02-13 | 2023-02-15 | $9.67 | $41K | -10.9% | -17.5% | -5.9% |
| EDIT | SELL | 2023-01-10 | 2023-01-12 | $8.16 | $14K | +4.5% | +14.8% | -26.9% |
| EDIT | SELL | 2022-12-05 | 2022-12-06 | $10.23 | $2K | +7.9% | -6.0% | -10.0% |
| EDIT | SELL | 2022-09-06 | 2022-09-08 | $15.01 | $3K | -9.9% | -27.3% | -39.0% |
| EDIT | SELL | 2022-06-03 | 2022-06-06 | $11.54 | $18K | -10.6% | +26.0% | +25.7% |
| EDIT | SELL | 2022-03-03 | 2022-03-07 | $17.33 | $13K | +8.8% | +24.4% | -27.0% |
| EDIT | SELL | 2022-01-11 | 2022-01-13 | $25.70 | $45K | -17.1% | -26.5% | -12.7% |
| EDIT | SELL | 2021-08-09 | 2021-08-10 | $60.00 | $150K | -1.1% | +5.6% | -33.5% |
| EDIT | SELL | 2021-06-28 | 2021-06-30 | $50.00 | $125K | -23.4% | -26.8% | -8.3% |
| EDIT | SELL | 2021-01-12 | 2021-01-13 | $78.27 | $245K | -17.6% | -21.3% | -43.4% |
| MNTA | SELL | 2019-10-25 | 2019-10-29 | $15.00 | $102K | +4.3% | +6.7% | +82.9% |
| MNTA | SELL · 10b5-1 | 2019-10-18 | 2019-10-21 | $13.83 | $41K | +6.8% | +6.3% | +99.2% |
| MNTA | SELL · 10b5-1 | 2019-02-14 | 2019-02-19 | $13.10 | $9K | +4.4% | +0.4% | -9.0% |
| MNTA | SELL · 10b5-1 | 2019-02-13 | 2019-02-14 | $12.70 | $18K | +13.2% | +15.1% | +9.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.