Mark Mossler

Chief Accounting Officer, C4 Therapeutics (United States).

Companies

C4 Therapeutics (United States)Chief Accounting Officer Sep 19, 2023 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

C4 Therapeutics (United States) CCCC71,916 shares²$207.5K at $2.88Feb 14, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

Feb 14, 2026Shares withheld for tax 3,268 shares at $1.89 of C4 Therapeutics (United States)²
Feb 14, 2026Exercised options 9,420 shares of C4 Therapeutics (United States)²
Feb 13, 2026Granted 56,980 shares of C4 Therapeutics (United States)²
Feb 14, 2025Shares withheld for tax 1,586 shares at $3.18 of C4 Therapeutics (United States)³
Feb 14, 2024Granted 18,290 shares of C4 Therapeutics (United States)⁴

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARC4 Therapeutics (United States), Chief Accounting Officer
2
SEC EDGARC4 Therapeutics (United States) shares after the filing of Feb 14, 2026
3
SEC EDGARForm 4 filed Feb 18, 2025
4
SEC EDGARForm 4 filed Apr 10, 2024