Mark Mossler plan to sell securities of C4 Therapeutics, Inc. under Form 144

Mark Mossler filed Form 144 to notify SEC of plan to sell 9087 units of C4 Therapeutics, Inc. securities around 2026-05-27, with aggregate market value of $35,484.74. The total outstanding units is 110567222.0. The amount planned to be sold represents 0.01% of total outstanding units;