Trinseo PLC — Director's Dealing 2024

Feb 23, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Trinseo PLC (TSE)
CIK: 0001519061
Period of Report: 2024-02-21

Reporting Person: Chaclas Angelo N. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-02-21	Ordinary Shares	A	44041	—	Acquired	132007	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-02-21	Options to Purchase Ordinary Shares	$4.40	A	77538	Acquired	2033-02-21	Ordinary Shares (77538)	Direct

Footnotes

F1: Represents ordinary shares issuable pursuant to RSU awards that will vest in three equal annual installments beginning on the first anniversary of the date of grant.

F2: The option vests in three equal annual installments beginning on the first anniversary of the grant date.