Richard William Scalzo is VP at Dyne Therapeutics, Inc. (DYN). They have made 2 open-market trades across 1 company since 2021, most recently 2026-09-16.
CIK 0001789545
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 2 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CBIO | SELL · 10b5-1 | 2026-09-16 | 2026-09-18 | $17.90 | $10K | -14.1% | — | — |
| CBIO | SELL · 10b5-1 | 2026-06-22 | 2026-06-23 | $17.99 | $20K | -1.4% | -1.0% | -5.6% |
| DYN | SELL · 10b5-1 | 2025-03-11 | 2025-03-13 | $11.38 | $15K | -5.2% | -37.9% | +21.1% |
| DYN | SELL · 10b5-1 | 2025-03-05 | 2025-03-07 | $11.83 | $11K | +2.1% | -38.4% | +15.1% |
| DYN | SELL · 10b5-1 | 2025-02-18 | 2025-02-18 | $13.95 | $35K | -0.4% | -10.2% | -14.6% |
| DYN | SELL · 10b5-1 | 2024-12-11 | 2024-12-11 | $28.12 | $41K | -12.4% | -41.8% | -55.9% |
| DYN | SELL · 10b5-1 | 2024-11-18 | 2024-11-18 | $28.20 | $77K | +6.0% | -15.0% | -52.3% |
| DYN | SELL · 10b5-1 | 2024-09-18 | 2024-09-19 | $34.55 | $48K | -4.7% | -8.2% | -32.7% |
| DYN | SELL · 10b5-1 | 2024-09-11 | 2024-09-11 | $31.89 | $47K | +5.7% | +2.7% | -13.5% |
| DYN | SELL | 2024-09-06 | 2024-09-10 | $32.15 | $8.1M | +15.1% | +2.4% | -9.8% |
| DYN | SELL · 10b5-1 | 2024-08-19 | 2024-08-20 | $45.07 | $234K | -0.8% | -21.7% | -36.9% |
| DYN | SELL · 10b5-1 | 2024-06-10 | 2024-06-11 | $30.74 | $90K | +9.5% | +29.0% | -0.2% |
| DYN | SELL · 10b5-1 | 2024-05-16 | 2024-05-17 | $28.24 | $133K | -1.6% | +0.3% | +44.3% |
| DYN | SELL · 10b5-1 | 2024-03-08 | 2024-03-12 | $26.20 | $4.6M | +3.9% | +0.8% | +15.9% |
| DYN | SELL · 10b5-1 | 2024-03-07 | 2024-03-11 | $25.85 | $118K | +15.1% | +5.8% | +24.3% |
| DYN | SELL · 10b5-1 | 2024-02-29 | 2024-03-01 | $28.03 | $698K | -6.9% | -6.2% | +4.6% |
| DYN | SELL · 10b5-1 | 2024-01-26 | 2024-01-26 | $24.34 | $316K | +3.1% | +15.6% | +13.9% |
| DYN | SELL · 10b5-1 | 2024-01-03 | 2024-01-04 | $18.81 | $489K | -6.4% | +23.0% | +61.7% |
| DYN | SELL · 10b5-1 | 2023-12-14 | 2023-12-14 | $12.02 | $29K | +14.0% | +39.9% | +132.2% |
| DYN | SELL · 10b5-1 | 2023-12-11 | 2023-12-12 | $10.72 | $15K | +15.6% | +50.0% | +133.5% |
| DYN | SELL · 10b5-1 | 2023-12-04 | 2023-12-06 | $12.01 | $31K | +3.7% | +56.2% | +125.0% |
| DYN | SELL · 10b5-1 | 2023-09-18 | 2023-09-20 | $9.41 | $12K | -13.8% | -21.3% | +36.9% |
| DYN | SELL · 10b5-1 | 2023-09-12 | 2023-09-13 | $10.41 | $15K | -6.1% | -11.6% | +18.7% |
| DYN | SELL | 2023-06-13 | 2023-06-15 | $12.71 | $653K | -13.9% | -10.4% | -25.0% |
| DYN | SELL · 10b5-1 | 2023-03-14 | 2023-03-15 | $13.33 | $17K | -13.0% | -27.2% | +3.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.