Insider · CIK 0001789545
Richard William Scalzo
Files at CBIO (CRESCENT BIOPHARMA, INC.), DYN (Dyne Therapeutics, Inc.). First filing Nov 18, 2024, latest Sep 18, 2026.
Where the trades landed
Last year at the 2 companies this insider has traded most, with each buy and sell on the bar it happened.
DYN: Dyne Therapeutics, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
CBIO: CRESCENT BIOPHARMA, INC.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 17Weak | CRESCENT BIOPHARMA, INC. | $10k 568 shares | -3% | - | |
| 10Weak | Dyne Therapeutics, Inc. | $15k 1,343 shares | -1% | - | |
| 10Weak | Dyne Therapeutics, Inc. | $11k 917 shares | -1% | - | |
| 9Weak | Dyne Therapeutics, Inc. | $35k 2,488 shares | -2% | - | |
| 16Weak | Dyne Therapeutics, Inc. | $41k 1,455 shares | -1% | - | |
| 18Weak | Dyne Therapeutics, Inc. | $77k 2,735 shares | -3% | - |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 16, 2026 | CBIO CRESCENT BIOPHARMA, INC. | SOpen-market sale Ordinary Shares10b5-1 | -568 | $17.90 | $10k | 19,730 | 24 d ago |
| Dec 15, 2025 | CBIO CRESCENT BIOPHARMA, INC. | AGrant or award Ordinary Shares | +14,422 | - | - | 14,422 | Dec 17, 2025 |
| Dec 15, 2025 | CBIO CRESCENT BIOPHARMA, INC. | AGrant or award Ordinary Shares | +5,000 | - | - | 19,422 | Dec 17, 2025 |
| Dec 15, 2025 | CBIO CRESCENT BIOPHARMA, INC. | AGrant or award Stock Option (Right to Buy)derivative | +57,688 | $0.00 | $0 | 57,688 | Dec 17, 2025 |
| Mar 11, 2025 | DYN Dyne Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -1,343 | $11.38 | $15k | 122,330 | Mar 13, 2025 |
| Mar 5, 2025 | DYN Dyne Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -917 | $11.83 | $11k | 123,673 | Mar 7, 2025 |
| Feb 18, 2025 | DYN Dyne Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -2,488 | $13.95 | $35k | 124,590 | Feb 18, 2025 |
| Dec 11, 2024 | DYN Dyne Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -1,455 | $28.12 | $41k | 127,078 | Dec 11, 2024 |
| Dec 4, 2024 | DYN Dyne Therapeutics, Inc. | AGrant or award Common Stock | +32,700 | $0.00 | $0 | 128,533 | Dec 6, 2024 |
| Dec 4, 2024 | DYN Dyne Therapeutics, Inc. | AGrant or award Stock option (right to buy)derivative | +52,300 | $0.00 | $0 | 52,300 | Dec 6, 2024 |
| Nov 18, 2024 | DYN Dyne Therapeutics, Inc. | SOpen-market sale Common Stock10b5-1 | -2,735 | $28.20 | $77k | 95,833 | Nov 18, 2024 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.