Institutional shares held 25.4 Million
0 calls
19.3K puts
Total value of holdings $24.7M
$0 calls
$18K puts
Market Cap $33.9M
34,972,600 Shares Out.
Institutional ownership 72.72%
# of Institutions 78


Latest Institutional Activity in TSE

Top Purchases

Q3 2025
Charles Schwab Investment Management Inc Shares Held: 1.51M ($1.46M)
Q3 2025
Icon Advisers Inc Shares Held: 1M ($970K)
Q3 2025
Alta Fundamental Advisers LLC Shares Held: 153K ($148K)
Q3 2025
Voleon Capital Management LP Shares Held: 82.1K ($79.6K)
Q3 2025
Bank Of America Corp Shares Held: 364K ($353K)

Top Sells

Q3 2025
Jpmorgan Chase & CO Shares Held: 26.3K ($25.5K)
Q3 2025
Vanguard Group Inc Shares Held: 756K ($733K)
Q3 2025
Castle Knight Management LP Shares Held: 2.47M ($2.39M)
Q3 2025
D. E. Shaw & Co., Inc. Shares Held: 147K ($143K)
Q3 2025
Two Sigma Investments, LP Shares Held: 35.7K ($34.6K)

About TSE

Trinseo PLC, a materials solutions provider, manufactures and sells plastics and latex binders in the United States, Europe, the Asia-Pacific, and internationally. The company operates through six segments: Engineered Materials, Latex Binders, Base Plastics, Polystyrene, Feedstocks, and Americas Styrenics. The Engineered Materials segment offers rigid compounds, including polycarbonate compounds, acrylonitrile-butadiene-styrene compounds, and PC blends to consumer electronics and medical markets for equipment housing applications; thermoplastic elastomer soft plastic compounds, such as overmolds, sealings, tubing, and films for footwear shoe sole, personal care, consumer electronics, and automotive high-end applications; and PMMA products to building and construction, automotive, medical, and consumer goods applications. The Latex Binders segment provides styrene-butadiene, styrene-acrylate, vinylidene chloride, and butadiene-methacrylate latex products for the commercial and niche carpet markets, as well as performance latex products for the adhesive, building and construction, and technical textile paper markets. The Base Plastics segment offers various compounds and blends for automotive and other applications. This segment also engages in the acrylonitrile-butadiene-styrene, styrene-acrylonitrile, and polycarbonate businesses. The Polystyrene segment provides general purpose polystyrenes and high impact polystyrene for use in appliances, food packaging and food service disposables, consumer electronics, and building and construction materials. The Feedstocks segment offers styrene monomer, a basic building block of plastics. The Americas Styrenics segment provides styrene and polystyrene. The company was incorporated in 2015 and is based in Berwyn, Pennsylvania.


Insider Transactions at TSE

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
1.29M Shares
From 20 Insiders
Grant, award, or other acquisition 1.18M shares
Open market or private purchase 104K shares
Sell / Disposition
194K Shares
From 21 Insiders
Payment of exercise price or tax liability 194K shares

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