Richard William Scalzo serves as Executive at Dyne Therapeutics, Inc., where they oversee executive responsibilities. Since joining the company, Richard William Scalzo has executed 58 insider transactions totaling $8.5M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 15, 2025 involved receiving (via award) 5,000 shares valued at $0.
Richard William Scalzo currently holds 19,422 shares of Dyne Therapeutics, Inc. (DYN), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Richard William Scalzo has been a net seller of DYN stock. They have purchased $0 and sold $8.5M worth of shares.
Richard William Scalzo's most recent insider trade was on Dec 15, 2025, when they sold 5,000 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Sep 18, 2024 | DYN | $48.0K | Sale | 1,390 | $34.55 | Planned |
| Sep 11, 2024 | DYN | $46.8K | Sale | 1,468 | $31.89 | Planned |
| Sep 6, 2024 | DYN | $36.0K | Option Exercise | 6,502 | $5.54 | Discretionary |
| Sep 6, 2024 | DYN | $219.1K | Option Exercise | 16,696 | $13.12 | Discretionary |
| Sep 6, 2024 | DYN | $661.8K | Option Exercise | 34,833 | $19.00 | Discretionary |
| Sep 6, 2024 | DYN | $18.6K | Option Exercise | 3,353 | $5.54 | Discretionary |
| Sep 6, 2024 | DYN | $255.6K | Option Exercise | 29,792 | $8.58 | Discretionary |
| Sep 6, 2024 | DYN | $4.0M | Sale | 124,374 | $32.14 | Discretionary |
| Sep 6, 2024 | DYN | $55.5K | Sale | 1,700 | $32.63 | Discretionary |
| Sep 6, 2024 | DYN | $201.0K | Option Exercise | 18,750 | $10.72 | Discretionary |
| Sep 6, 2024 | DYN | $71.3K | Option Exercise | 6,552 | $10.88 | Discretionary |
| Aug 19, 2024 | DYN | $109.9K | Sale | 2,442 | $45.01 | Planned |
| Aug 19, 2024 | DYN | $14.3K | Sale | 310 | $46.00 | Planned |
| Jun 11, 2024 | DYN | $41.7K | Sale | 1,331 | $31.34 | Planned |
| Jun 10, 2024 | DYN | $48.1K | Sale | 1,590 | $30.23 | Planned |
| May 16, 2024 | DYN | $13.2K | Sale | 462 | $28.59 | Planned |
| May 16, 2024 | DYN | $60.0K | Sale | 2,126 | $28.20 | Planned |
| Mar 11, 2024 | DYN | $39.7K | Sale | 1,590 | $24.99 | Planned |
| Mar 11, 2024 | DYN | $27.8K | Sale | 1,082 | $25.70 | Planned |
| Mar 8, 2024 | DYN | $381.8K | Option Exercise | 68,919 | $5.54 | Planned |
| Mar 8, 2024 | DYN | $96.0K | Option Exercise | 17,333 | $5.54 | Planned |
| Mar 8, 2024 | DYN | $778.4K | Sale | 30,755 | $25.31 | Planned |
| Mar 8, 2024 | DYN | $1.5M | Sale | 55,208 | $26.72 | Planned |
| Mar 8, 2024 | DYN | $7.9K | Sale | 289 | $27.33 | Planned |
| Mar 7, 2024 | DYN | $58.8K | Sale | 2,273 | $25.85 | Planned |
| Mar 1, 2024 | DYN | $9.6K | Option Exercise | 9,311 | $1.03 | Planned |
| Mar 1, 2024 | DYN | $246.8K | Sale | 8,747 | $28.22 | Planned |
| Mar 1, 2024 | DYN | $16.2K | Sale | 564 | $28.65 | Planned |