February 27, 2026 · Form 4 insider transaction
van Kessel Bregje sold 6,064 shares of Trinseo Corp at $0.23 per share, a transaction worth $1.4K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 4 days after the transaction.
Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units.