Trinseo PLC — Director's Dealing 2025

Mar 14, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Trinseo PLC (TSE)
CIK: 0001519061
Period of Report: 2025-03-12

Reporting Person: Frisch Johanna (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-12	Ordinary Shares	P	1200	$4.28	Acquired	15492	Direct
2025-03-13	Ordinary Shares	P	1100	$4.02	Acquired	16592	Direct
2025-03-14	Ordinary Shares	P	1500	$4.10	Acquired	18092	Direct

Footnotes

F1: Price reflects the weighted average sales price for the sales transaction made on the date reported above. Sales prices ranged from $4.27 to $4.28. The reporting person will provide, upon request by the Staff, the Company, or a security holder of the Company, full information regarding the number of shares sold at each separate price.