Pierre-Marie De Leener - Jun 21, 2025 Form 4 Insider Report for Trinseo PLC (TSE)

Role
Director
Signature
/s/ Angelo Chaclas, Attorney-in-Fact
Stock symbol
TSE
Transactions as of
Jun 21, 2025
Transactions value $
-$74,604
Form type
4
Date filed
6/24/2025, 04:15 PM
Previous filing
Jun 25, 2024

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
De Leener Pierre-Marie Director C/O TRINSEO PLC, 440 EAST SWEDESFORD ROAD, SUITE 301, WAYNE /s/ Angelo Chaclas, Attorney-in-Fact 2025-06-24 0001423137

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TSE Ordinary Shares Tax liability -$74.6K -20K -35.6% $3.73 36.2K Jun 21, 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld by the Company to pay taxes due following the vesting of previously granted restricted stock units.