Trinseo PLC
TSEOQ- Exchange
- OTC
- Industry
- Plastic Materials, Synth Resins & Nonvulcan Elastomers
- SEC CIK
- 0001519061
No open-market purchases or sales by Trinseo PLC insiders were filed in the last 90 days; 6 institutions reported holding it in 13F filings for Q2 2026, worth $740 in total; no superinvestor holds it.
13F holders, Q2 2025
Institutional positions in Trinseo PLC as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 80
- −5 vs. Q1 2025
- Shares held
- 27.7M
- +2.48M (+9.8%) vs. Q1 2025
- Total value
- $85.4M
- −$9.75M (−10.2%) vs. Q1 2025
- New holders
- 21
- 21 more added
- Sold out
- 26
- 21 more reduced
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TSEOQ on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 6 | $740 |
| Q1 2026 | 14 | $11.0K |
| Q4 2025 | 73 | $12.3M |
| Q3 2025 | 75 | $60.4M |
| Q2 2025 | 80 | $85.4M |
| Q1 2025 | 85 | $95.2M |
| Q4 2024 | 95 | $126.6M |
| Q3 2024 | 71 | $116.2M |
| Q2 2024 | 98 | $56.0M |
| Q1 2024 | 109 | $105.3M |
| Q4 2023 | 128 | $241.2M |
| Q3 2023 | 146 | $241.9M |
| Q2 2023 | 145 | $418.8M |
| Q1 2023 | 167 | $695.9M |
| Q4 2022 | 182 | $746.7M |
| Q3 2022 | 182 | $585.5M |
| Q2 2022 | 194 | $1.31B |
| Q1 2022 | 189 | $1.66B |
| Q4 2021 | 185 | $1.84B |
| Q3 2021 | 184 | $1.96B |
| Q2 2021 | 214 | $2.16B |
| Q1 2021 | 209 | $2.27B |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Trinseo PLC; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| M&G Plc | 7,625,044 | $22.9M | 0.13% | 00.0% | Unchanged |
| Nut Tree Capital Management, LP | 3,500,000 | $10.9M | 3.21% | 00.0% | Unchanged |
| CastleKnight Management LP | 2,766,226 | $8.63M | 0.57% | 00.0% | Unchanged |
| BlackRock, Inc. | 2,255,133 | $7.04M | 0.00% | +1,497,575+197.7% | Added |
| Owl Creek Asset Management, L.P. | 1,669,952 | $5.21M | 0.69% | +1,287,854+337.0% | Added |
| Vanguard Group Inc | 1,076,651 | $3.36M | 0.00% | +115,899+12.1% | Added |
| Brightline Capital Management, LLC | 1,022,000 | $3.19M | 1.37% | +6,000+0.6% | Added |
| Charles Schwab Investment Management Inc | 962,901 | $3.00M | 0.00% | +600,255+165.5% | Added |
| Geode Capital Management, LLC | 823,044 | $2.57M | 0.00% | +423,205+105.8% | Added |
| Icon Advisers Inc | 750,000 | $2.34M | 0.53% | +750,000 | New |
| Morgan Stanley | 467,844 | $1.46M | 0.00% | +24,289+5.5% | Added |
| State Street Corp | 381,208 | $1.19M | 0.00% | +232,231+155.9% | Added |
| JPMorgan Chase & Co | 364,444 | $1.14M | 0.00% | −25,400−6.5% | Reduced |
| D. E. Shaw & Co., Inc. | 316,474 | $987.4K | 0.00% | −69,306−18.0% | Reduced |
| Bank of America Corp | 302,965 | $945.3K | 0.00% | −8,424−2.7% | Reduced |
| Lakewood Capital Management, LP | 281,279 | $877.6K | 0.07% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 278,000 | $867.4K | 0.00% | +22,100+8.6% | Added |
| Northern Trust Corp | 265,752 | $829.1K | 0.00% | +188,394+243.5% | Added |
| Acadian Asset Management LLC | 241,977 | $752.0K | 0.00% | −87,329−26.5% | Reduced |
| Royal Bank of Canada | 236,726 | $738.0K | 0.00% | +235,397+17,712.3% | Added |
| Invesco Ltd. | 195,259 | $609.2K | 0.00% | −60,409−23.6% | Reduced |
| UBS Group AG | 190,465 | $594.3K | 0.00% | +168,012+748.3% | Added |
| Marshall Wace, LLP | 190,397 | $594.0K | 0.00% | −671,172−77.9% | Reduced |
| Two Sigma Investments, LP | 135,135 | $421.6K | 0.00% | −165,172−55.0% | Reduced |
| Dimensional Fund Advisors LP | 118,126 | $369.5K | 0.00% | +14,153+13.6% | Added |
| FMR LLC | 118,022 | $368.2K | 0.00% | −5,335−4.3% | Reduced |
| Goldman Sachs Group Inc | 116,901 | $364.7K | 0.00% | −226,703−66.0% | Reduced |
| Thrivent Financial for Lutherans | 116,248 | $362.0K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 81,392 | $253.9K | 0.00% | +81,392 | New |
| Engineers Gate Manager LP | 72,806 | $227.2K | 0.00% | +62,771+625.5% | Added |
| Barclays PLC | 58,898 | $183.8K | 0.00% | +36,361+161.3% | Added |
| Susquehanna International Group, LLP | 57,386 | $179.0K | 0.00% | −345,334−85.8% | Reduced |
| Susquehanna Fundamental Investments, LLC | 45,906 | $143.2K | 0.00% | −20,949−31.3% | Reduced |
| Millennium Management LLC | 44,624 | $139.2K | 0.00% | −227,884−83.6% | Reduced |
| Kohmann Bosshard Financial Services, LLC | 44,605 | $139.2K | 0.02% | 00.0% | Unchanged |
| Nuveen, LLC | 44,280 | $138.2K | 0.00% | +44,280 | New |
| BNP Paribas Arbitrage, SA | 41,586 | $129.7K | 0.00% | +18,508+80.2% | Added |
| Price T Rowe Associates Inc | 40,483 | $127.0K | 0.00% | +16,583+69.4% | Added |
| Los Angeles Capital Management LLC | 34,760 | $108.5K | 0.00% | +34,760 | New |
| Rhumbline Advisers | 33,054 | $103.1K | 0.00% | +27,788+527.7% | Added |
| New York State Common Retirement Fund | 29,500 | $92.0K | 0.00% | +29,500 | New |
| Deutsche Bank AG | 28,785 | $89.8K | 0.00% | +28,785 | New |
| JB Capital Partners LP | 27,001 | $84.0K | 0.02% | 00.0% | Unchanged |
| Cetera Investment Advisers | 25,181 | $78.6K | 0.00% | −139−0.5% | Reduced |
| Wells Fargo & Company | 24,220 | $75.6K | 0.00% | +11,417+89.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 18,600 | $58.0K | 0.00% | +18,600 | New |
| Meeder Asset Management Inc | 16,116 | $50.3K | 0.00% | 00.0% | Unchanged |
| Intech Investment Management LLC | 15,514 | $48.4K | 0.00% | +15,514 | New |
| Red Door Wealth Management, LLC | 15,000 | $46.8K | 0.01% | 00.0% | Unchanged |
| PFG Investments, LLC | 14,002 | $43.7K | 0.00% | +20.0% | Added |
| Citigroup Inc | 13,820 | $43.1K | 0.00% | +8,128+142.8% | Added |
| Sugar Maple Asset Management, LLC | 13,000 | $40.6K | 0.03% | +13,000 | New |
| Gsa Capital Partners LLP | 12,450 | $39.0K | 0.00% | −92,622−88.2% | Reduced |
| Two Sigma Advisers, LP | 11,400 | $35.6K | 0.00% | −198,000−94.6% | Reduced |
| May Hill Capital, LLC | 10,594 | $33.1K | 0.01% | +10,594 | New |
| SG Americas Securities, LLC | 10,218 | $32.0K | 0.00% | −10,738−51.2% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 8,769 | $27.4K | 0.00% | +8,769 | New |
| Ameritas Investment Partners, Inc. | 3,476 | $10.8K | 0.00% | +3,476 | New |
| Legal & General Group Plc | 3,098 | $9.67K | 0.00% | +3,098 | New |
| California State Teachers Retirement System | 2,124 | $6.63K | 0.00% | +2,124 | New |
| McIlrath & Eck, LLC | 1,444 | $4.50K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 1,163 | $4.00K | 0.00% | +1,163 | New |
| Steward Partners Investment Advisory, LLC | 1,000 | $3.12K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 919 | $2.87K | 0.00% | +919 | New |
| Headlands Technologies LLC | 901 | $2.81K | 0.00% | +901 | New |
| Raymond James Financial Inc | 718 | $2.24K | 0.00% | +718 | New |
| Russell Investments Group, Ltd. | 582 | $1.82K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 402 | $1.25K | 0.00% | +402 | New |
| Simplex Trading, LLC | 616 | $1.00K | 0.00% | −1,137−64.9% | Reduced |
| Group One Trading, L.P. | 275 | $858 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 270 | $843 | 0.00% | −30−10.0% | Reduced |
| SWAN Capital LLC | 250 | $780 | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 241 | $752 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 237 | $740 | 0.00% | −156−39.7% | Reduced |
| Stephens Consulting, LLC | 231 | $721 | 0.00% | 00.0% | Unchanged |
| Keystone Global Partners, LLC | 20 | $62 | 0.00% | +20 | New |
| South State Corp. | 13 | $41 | 0.00% | +13 | New |
| Nisa Investment Advisors, LLC | 8 | $25 | 0.00% | −60−88.2% | Reduced |
| Allworth Financial LP | 7 | $22 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 4 | $12 | 0.00% | −17−81.0% | Reduced |
| Truffle Hound Capital, LLC | 0 | $0 | 0.00% | −350,000−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −267,745−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −104,779−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −72,200−100.0% | Sold out |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −61,507−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −55,518−100.0% | Sold out |
| Alta Fundamental Advisers LLC | 0 | $0 | 0.00% | −53,618−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −50,656−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −45,802−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −44,754−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −34,125−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −32,942−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −32,107−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −27,255−100.0% | Sold out |
| Quantessence Capital LLC | 0 | $0 | 0.00% | −20,124−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −17,285−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −15,567−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −15,185−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −14,687−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −12,849−100.0% | Sold out |