Trinseo PLC — Director's Dealing 2017

Mar 6, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Trinseo S.A. (TSE)
CIK: 0001519061
Period of Report: 2017-03-03

Reporting Person: Chaclas Angelo N. (See Remarks)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-03-03	Ordinary Shares	M	15780	$18.14	Acquired	37260	Direct
2017-03-03	Ordinary Shares	M	7991	$26.97	Acquired	45251	Direct
2017-03-03	Ordinary Shares	S	23771	$71.4023	Disposed	21480	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-03-03	Option to Purchase Ordinary Shares	$18.14	M	15780	Disposed	2024-02-27	Ordinary Shares (15780)	Direct
2017-03-03	Option to Purchase Ordinary Shares	$26.97	M	7991	Disposed	2025-02-22	Ordinary Shares (7991)	Direct

Footnotes

F1: Represents the weighted average sale price for price increments ranging from $70.80 to $72.00, inclusive. The reporting person undertakes to provide to Trinseo S.A., any security holder of Trinseo S.A., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.