Senior insider sale
Chief Accounting Officer at C4 THERAPEUTICS, INC. — senior position signals high conviction
$112.2K
28.61K shares
What this filing means
MOSSLER MARK plans to sell 28.61K shares of C4 THERAPEUTICS, INC. valued at approximately $112.2K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 8/12/2026ACC: 0001950047-26-008039
Officer· Chief Accounting Officer
Since Feb 2026
28.61K
Shares to sell
$112.2K
Approx. market value
19.52K
Acquired (3 months)
1
Planned
1 completed
Securities Acquired — Last 3 Months1
Stock Option Exercise
Cash
8/12/2026
19.52KTotal acquired19.52K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
8/12/2026 | Stock Option Exercise Cash | 19.52K | — |
| Total | 19.52K | ||
Planned & Completed Dispositions2
Completed
—Completed
Units to sell
9.09K
Market value
$35.5K
5/27/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
19.52K
Market value
$76.7K
8/12/2026
Total
Units
28.61K
Value
$112.2K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
5/27/2026 | 9.09K | $35.5K | — | Completed |
| Planned — Approximate Date | ||||
8/12/2026 | 19.52K | $76.7K | NASDAQ | Planned |
| Total | 28.61K | $112.2K | ||