Ownership Summary
Quarter ending 30 Jun, 2026
Trinseo PLC (OTC:TSEOQ) appears in 6 institutional 13F filings for the quarter ending June 2026.
- These investors held 1.3% of outstanding shares in June 2026, up from 0.3% in March 2026.
- Their total shares held in TSEOQ increased 866.35% quarter over quarter, and separately, investors owning Trinseo decreased 92.41% from a year ago.
- Activity in TSEOQ broke down as 2 buyers, 1 sellers, and 3 unchanged among 6 total holders.
- In total, institutional investors held 462.69K shares in Trinseo as of June 2026, up by 414.81K shares quarter on quarter, and down 26.75Mn shares year over year.
- GAMMA Investing LLC leads ownership in TSEOQ with 412.66K shares as of June 30, 2026, equal to 1.13% of outstanding shares.
- Leading buyers of Trinseo shares for the quarter ending June 2026 were GAMMA Investing LLC (410.51K), EverSource Wealth Advisors, LLC (4.34K).
- The biggest sellers of Trinseo for the quarter ending June 2026 included Essential Partners LLC (36).
- According to Business Quant data, leading holders of TSEOQ for June 2026 are GAMMA Investing LLC (412.66K), Kohmann Bosshard Financial Services, LLC (44.6K), EverSource Wealth Advisors, LLC (5.38K), Essential Partners LLC (30), Farther Finance Advisors, LLC (15), ROTHSCHILD INVESTMENT LLC (7).