NYSE: TSE
Trinseo PLC Stock Ownership - Who owns Trinseo?

Insider buying vs selling

Have Trinseo PLC insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Johanna FrischVP AND TREASURER2025-03-141,500$4.10
$6.15kBuy
Johanna FrischVP AND TREASURER2025-03-131,100$4.02
$4.42kBuy
Johanna FrischVP AND TREASURER2025-03-121,200$4.28
$5.14kBuy
Rainer ScheweSVP SUPPLY CHAIN MFG SVCS2025-02-221,566$5.52
$8.64kSell
Frank A. BozichCEO AND PRESIDENT2025-02-2218,795$5.52
$103.75kSell
Angelo N. ChaclasSVP CLO CCO CORP. SEC.2025-02-213,690$5.52
$20.37kSell
Paula M. CooneySVP CHRO2025-02-217,440$5.52
$41.07kSell
Rainer ScheweSVP SUPPLY CHAIN MFG SVCS2025-02-215,096$5.52
$28.13kSell
Francesca ReverberiSVP EM and Polymer Solutions2025-02-211,163$5.52
$6.42kSell
Han HendriksSVP CHIEF TECHNOLOGY OFFICER2025-02-216,331$5.52
$34.95kSell

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Net Insider Buy/Sell (L12M) Ownership

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TSE Shareholders

What type of owners hold Trinseo PLC stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Brian Chu210.09%74,542,370$245.99MInsider
Felix Hauser135.12%47,941,031$158.21MInsider
Aurelien Vasseur135.11%47,939,134$158.20MInsider
Stephen M. Zide105.14%37,305,848$123.11MInsider
Michel Plantevin105.05%37,274,052$123.00MInsider
Seth Meisel105.05%37,272,803$123.00MInsider
Stephen F. Thomas105.04%37,271,464$123.00MInsider
Mg Investment Management Ltd65.09%23,095,132$76.21MInsider
Mg PLC21.49%7,625,044$25.16MInstitution
Nut Tree Capital Management LP9.86%3,500,000$11.55MInstitution

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TSE vs Specialty Chemical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
TSE6.73%93.27%Net BuyingNet Selling
LWLG27.14%17.87%Net BuyingNet Buying
CMT66.54%27.35%Net SellingNet Buying
NTIC24.60%75.40%Net Buying
ALTO28.41%21.33%Net SellingNet Selling

Trinseo Stock Ownership FAQ

Who owns Trinseo?

Trinseo (NYSE: TSE) is owned by 70.36% institutional shareholders, 975.01% Trinseo insiders, and 0.00% retail investors. Brian Chu is the largest individual Trinseo shareholder, owning 74.54M shares representing 210.09% of the company. Brian Chu's Trinseo shares are currently valued at $231.08M.

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