Trinseo PLC — Director's Dealing 2021

Feb 19, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Trinseo S.A. (TSE)
CIK: 0001519061
Period of Report: 2021-02-17

Reporting Person: Ni James Mingyu (VP, Latex Binders)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-17	Ordinary Shares	A	1509	—	Acquired	1509	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-17	Ordinary Shares	$61.06	A	4002	Acquired	2030-02-17	Ordinary Shares (4002)	Direct

Footnotes

F1: Represents ordinary shares issuable pursuant to RSU award that will vest in full on the third anniversary of the grant date.

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