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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 Chu207.10%74,542,370$37.27MInsider
Felix Hauser133.19%47,941,031$23.97MInsider
Aurelien Vasseur133.19%47,939,134$23.97MInsider
Stephen M. Zide103.65%37,305,848$18.65MInsider
Michel Plantevin103.56%37,274,052$18.64MInsider
Seth Meisel103.55%37,272,803$18.64MInsider
Stephen F. Thomas103.55%37,271,464$18.64MInsider
Mg Investment Management Ltd64.16%23,095,132$11.55MInsider
Mg PLC21.18%7,625,044$3.81MInstitution
Nut Tree Capital Management LP9.72%3,500,000$1.75MInstitution

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TSE vs Specialty Chemical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
TSE7.20%92.80%Net SellingNet Selling
SNES8.89%67.17%Net SellingNet Selling
YMAT0.49%0.00%
BGLC0.13%99.87%
BSLK0.95%99.05%Net SellingNet Selling
View Top Specialty Chemical Stocks

Trinseo Stock Ownership FAQ

Who owns Trinseo?

Trinseo (NYSE: TSE) is owned by 74.59% institutional shareholders, 962.01% Trinseo insiders, and 0.00% retail investors. Brian Chu is the largest individual Trinseo shareholder, owning 74.54M shares representing 207.10% of the company. Brian Chu's Trinseo shares are currently valued at $35.03M.

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