Adam Crystal, Chief Medical Officer at C4 Therapeutics, Inc. (CCCC), sold 28,288 shares at $45.32 ($1.3M) on 2021-10-01, disclosed to the SEC on 2021-10-05.
Open-market sale of $1.3M CCCC by Chief Medical Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $44.25 | 1,712 | $76K | 5.9% |
| 2 | $45.32 | 8,176 | $371K | 28.8% |
| 3 | $45.32 | 8,176 | $371K | 28.8% |
| 4 | $45.99 | 5,112 | $235K | 18.3% |
| 5 | $45.99 | 5,112 | $235K | 18.3% |
| Total | $45.50 avg | 28,288 |
| $1.3M |
| 100% |
| Filing → |
| TNGX | SELL | 2026-08-05 | $736K | — | Filing → |
| TNGX | SELL | 2026-07-02 | $799K | — | Filing → |
| TNGX | SELL | 2026-06-03 | $618K | — | Filing → |