Susanna Gatti High is COO at Dyne Therapeutics, Inc. (DYN). They have made 7 open-market trades across 2 companies since 2017, most recently 2024-09-18.
CIK 0001691005
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 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DYN | SELL · 10b5-1 | 2024-09-18 | 2024-09-19 | $34.41 | $618K | -4.7% | -8.2% | -32.7% |
| DYN | SELL · 10b5-1 | 2024-09-11 | 2024-09-11 | $31.89 | $336K | +5.7% | +2.7% | -13.5% |
| DYN | SELL · 10b5-1 | 2024-08-19 | 2024-08-20 | $45.07 | $248K | -0.8% | -21.7% | -36.9% |
| DYN | SELL · 10b5-1 | 2024-06-24 | 2024-07-03 | $35.33 | $722K | +30.4% | +20.6% | +2.7% |
| DYN | SELL · 10b5-1 | 2024-06-21 | 2024-06-24 | $35.06 | $2.4M | -3.3% | +23.0% | -2.7% |
| DYN | SELL · 10b5-1 | 2024-06-12 | 2024-06-13 | $33.36 | $2.7M | +2.8% | +31.3% | -1.2% |
| DYN | SELL · 10b5-1 | 2024-06-10 | 2024-06-11 | $30.36 | $2.7M | +9.5% | +29.0% | -0.2% |
| DYN | SELL · 10b5-1 | 2024-05-16 | 2024-05-17 | $28.24 | $141K | -1.6% | +0.3% | +44.3% |
| DYN | SELL · 10b5-1 | 2024-03-08 | 2024-03-13 | $26.59 | $1.6M | -5.6% | -6.4% | +12.1% |
| DYN | SELL · 10b5-1 | 2024-03-07 | 2024-03-11 | $25.85 | $41K | +15.1% | +5.8% | +24.3% |
| DYN | SELL · 10b5-1 | 2023-12-11 | 2023-12-12 | $10.72 | $17K | +15.6% | +50.0% | +133.5% |
| DYN | SELL | 2023-11-02 | 2023-11-02 | $7.40 | $147K | +42.6% | +60.5% | +194.8% |
| DYN | SELL · 10b5-1 | 2023-09-18 | 2023-09-20 | $9.41 | $25K | -13.8% | -21.3% | +36.9% |
| DYN | SELL · 10b5-1 | 2023-09-12 | 2023-09-13 | $10.41 | $17K | -6.1% | -11.6% | +18.7% |
| DYN | SELL · 10b5-1 | 2023-06-13 | 2023-06-14 | $12.43 | $20K | -16.1% | -9.9% | -19.6% |
| DYN | SELL · 10b5-1 | 2023-03-14 | 2023-03-15 | $13.33 | $21K | -13.0% | -27.2% | +3.0% |
| DYN | SELL · 10b5-1 | 2022-12-12 | 2022-12-13 | $10.87 | $8K | -2.0% | -4.7% | +5.4% |
| DYN | SELL · 10b5-1 | 2022-03-11 | 2022-03-14 | $8.73 | $7K | +3.0% | +9.2% | -44.6% |
| DYN | SELL · 10b5-1 | 2021-09-23 | 2021-09-24 | $17.22 | $42K | -6.4% | -14.0% | -21.6% |
| BLUE | SELL | 2018-12-06 | 2018-12-21 | $105.70 | $198K | +17.5% | +38.0% | +72.3% |
| BLUE | SELL | 2018-12-03 | 2018-12-06 | $113.83 | $430K | -4.3% | +5.1% | +33.6% |
| BLUE | SELL | 2018-06-04 | 2018-06-06 | $199.11 | $697K | -5.1% | -8.7% | -11.3% |
| BLUE | SELL | 2018-02-28 | 2018-03-02 | $202.81 | $342K | +6.6% | -21.8% | -13.3% |
| BLUE | SELL | 2018-01-30 | 2018-02-01 | $195.93 | $6.6M | -1.0% | +6.9% | -14.4% |
| BLUE | SELL | 2017-12-01 | 2017-12-05 | $172.15 | $441K | +12.9% | +9.3% | +32.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.