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

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Trinseo PLC insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Han HendriksSVP CHIEF TECHNOLOGY OFFICER2025-10-032,067$2.33
$4.82kSell
Johanna FrischVP AND TREASURER2025-09-302,194$2.35
$5.16kSell
Roger GreeneVP GLOBAL CONTROLLER PAO2025-09-251,617$2.57
$4.16kSell
Matthew FarrellDirector2025-08-1448,609$2.43
$118.12kBuy
Matthew FarrellDirector2025-08-1326,391$2.45
$64.66kBuy
Matthew FarrellDirector2025-08-1225,000$2.29
$57.25kBuy
Jeffrey J. CoteDirector2025-06-2110,310$3.73
$38.46kSell
Jeffrey J. CoteDirector2025-06-2110,310$3.73
$38.46kSell
Jeffrey J. CoteDirector2025-06-2110,310$3.73
$38.46kSell
Leener Pierremarie DeDirector2025-06-2120,001$3.73
$74.60kSell

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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 Chu207.34%74,542,370$108.83MInsider
Felix Hauser133.35%47,941,031$69.99MInsider
Aurelien Vasseur133.34%47,939,134$69.99MInsider
Stephen M. Zide103.76%37,305,848$54.47MInsider
Michel Plantevin103.68%37,274,052$54.42MInsider
Seth Meisel103.67%37,272,803$54.42MInsider
Stephen F. Thomas103.67%37,271,464$54.42MInsider
Mg Investment Management Ltd64.24%23,095,132$33.72MInsider
Mg PLC21.21%7,625,044$11.13MInstitution
Nut Tree Capital Management LP9.74%3,500,000$5.11MInstitution

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TSE vs Specialty Chemical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
TSE7.40%92.60%Net SellingNet Buying
NTIC21.19%78.81%Net BuyingNet Buying
ALTO22.06%21.42%Net SellingNet Buying
LOOP3.29%96.71%Net BuyingNet Buying
BGLC0.06%99.94%
View Top Specialty Chemical Stocks

Trinseo Stock Ownership FAQ

Who owns Trinseo?

Trinseo (NYSE: TSE) is owned by 76.99% institutional shareholders, 963.10% Trinseo insiders, and 0.00% retail investors. Brian Chu is the largest individual Trinseo shareholder, owning 74.54M shares representing 207.34% of the company. Brian Chu's Trinseo shares are currently valued at $108.83M.

If you're new to stock investing, here's how to buy Trinseo stock.
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