David Phillip Stasse Trinseo PLC (TSE) insider trading activity

David Phillip Stasse is EVP AND CFO of Trinseo PLC. Currently has a direct ownership of 279,853 shares of TSE, which is worth approximately $1.33 Million. The most recent transaction as insider was on Feb 27, 2025, when has been sold 123,745 shares (Ordinary Shares) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 280K

70.11% 3M change

70.11% 12M change

Total Value Held $1.33 Million

David Phillip Stasse Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Feb 27 2025	BUY Grant, award, or other acquisition	-	123,745 Added 30.66%	279,853 Ordinary Shares
Feb 21 2025	SELL Payment of exercise price or tax liability	$36,200 $5.52 p/Share	6,558 Reduced 4.03%	156,108 Ordinary Shares
Feb 16 2025	SELL Payment of exercise price or tax liability	$9,483 $5.14 p/Share	1,845 Reduced 1.12%	162,666 Ordinary Shares
Feb 21 2024	BUY Grant, award, or other acquisition	-	60,013 Added 26.73%	164,511 Ordinary Shares
Feb 19 2024	SELL Payment of exercise price or tax liability	$965 $4.78 p/Share	202 Reduced 0.19%	104,498 Ordinary Shares
Feb 19 2024	BUY Grant, award, or other acquisition	-	614 Added 0.58%	104,700 Ordinary Shares
Feb 17 2024	SELL Payment of exercise price or tax liability	$7,007 $4.78 p/Share	1,466 Reduced 1.39%	104,086 Ordinary Shares
Sep 14 2023	BUY Open market or private purchase	$133,350 $8.89 p/Share	15,000 Added 12.44%	105,552 Ordinary Shares
Mar 09 2023	SELL Payment of exercise price or tax liability	$52,281 $22.2 p/Share	2,355 Reduced 2.53%	90,552 Ordinary Shares
Mar 09 2023	BUY Grant, award, or other acquisition	-	8,568 Added 8.44%	92,907 Ordinary Shares
Feb 25 2023	SELL Payment of exercise price or tax liability	$65,439 $24.3 p/Share	2,693 Reduced 3.09%	84,339 Ordinary Shares
Feb 22 2023	BUY Grant, award, or other acquisition	-	38,480 Added 30.66%	87,032 Ordinary Shares
Feb 26 2022	SELL Payment of exercise price or tax liability	$63,077 $53.82 p/Share	1,172 Reduced 2.36%	48,552 Ordinary Shares
Feb 16 2022	BUY Grant, award, or other acquisition	-	5,628 Added 10.17%	49,724 Ordinary Shares
Sep 14 2021	SELL Payment of exercise price or tax liability	$53,933 $47.56 p/Share	1,134 Reduced 2.51%	44,096 Ordinary Shares
Feb 25 2021	SELL Open market or private sale	$1,082,936 $65.45 p/Share	16,546 Reduced 26.78%	45,230 Ordinary Shares
Feb 25 2021	BUY Exercise of conversion of derivative security	$538,241 $32.53 p/Share	16,546 Added 21.13%	61,776 Ordinary Shares
Feb 22 2021	SELL Payment of exercise price or tax liability	$46,706 $64.6 p/Share	723 Reduced 1.57%	45,230 Ordinary Shares
Feb 17 2021	BUY Grant, award, or other acquisition	-	4,471 Added 8.87%	45,953 Ordinary Shares

DPS

David Phillip Stasse

EVP AND CFO

Berwyn, PA

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