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 |
|---|---|---|---|---|---|
| SBI Securities Co., Ltd. | 4 | $12 | 0.00% | −17−81.0% | Reduced |
| Allworth Financial LP | 7 | $22 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 8 | $25 | 0.00% | −60−88.2% | Reduced |
| South State Corp. | 13 | $41 | 0.00% | +13 | New |
| Keystone Global Partners, LLC | 20 | $62 | 0.00% | +20 | New |
| Stephens Consulting, LLC | 231 | $721 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 237 | $740 | 0.00% | −156−39.7% | Reduced |
| Federated Hermes, Inc. | 241 | $752 | 0.00% | 00.0% | Unchanged |
| SWAN Capital LLC | 250 | $780 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 270 | $843 | 0.00% | −30−10.0% | Reduced |
| Group One Trading, L.P. | 275 | $858 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 616 | $1.00K | 0.00% | −1,137−64.9% | Reduced |
| Tower Research Capital LLC (TRC) | 402 | $1.25K | 0.00% | +402 | New |
| Russell Investments Group, Ltd. | 582 | $1.82K | 0.00% | 00.0% | Unchanged |
| Raymond James Financial Inc | 718 | $2.24K | 0.00% | +718 | New |
| Headlands Technologies LLC | 901 | $2.81K | 0.00% | +901 | New |
| Sterling Capital Management LLC | 919 | $2.87K | 0.00% | +919 | New |
| Steward Partners Investment Advisory, LLC | 1,000 | $3.12K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 1,163 | $4.00K | 0.00% | +1,163 | New |
| McIlrath & Eck, LLC | 1,444 | $4.50K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 2,124 | $6.63K | 0.00% | +2,124 | New |
| Legal & General Group Plc | 3,098 | $9.67K | 0.00% | +3,098 | New |
| Ameritas Investment Partners, Inc. | 3,476 | $10.8K | 0.00% | +3,476 | New |
| Police & Firemen's Retirement System of New Jersey | 8,769 | $27.4K | 0.00% | +8,769 | New |
| SG Americas Securities, LLC | 10,218 | $32.0K | 0.00% | −10,738−51.2% | Reduced |
| May Hill Capital, LLC | 10,594 | $33.1K | 0.01% | +10,594 | New |
| Two Sigma Advisers, LP | 11,400 | $35.6K | 0.00% | −198,000−94.6% | Reduced |
| Gsa Capital Partners LLP | 12,450 | $39.0K | 0.00% | −92,622−88.2% | Reduced |
| Sugar Maple Asset Management, LLC | 13,000 | $40.6K | 0.03% | +13,000 | New |
| Citigroup Inc | 13,820 | $43.1K | 0.00% | +8,128+142.8% | Added |
| PFG Investments, LLC | 14,002 | $43.7K | 0.00% | +20.0% | Added |
| Red Door Wealth Management, LLC | 15,000 | $46.8K | 0.01% | 00.0% | Unchanged |
| Intech Investment Management LLC | 15,514 | $48.4K | 0.00% | +15,514 | New |
| Meeder Asset Management Inc | 16,116 | $50.3K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 18,600 | $58.0K | 0.00% | +18,600 | New |
| Wells Fargo & Company | 24,220 | $75.6K | 0.00% | +11,417+89.2% | Added |
| Cetera Investment Advisers | 25,181 | $78.6K | 0.00% | −139−0.5% | Reduced |
| JB Capital Partners LP | 27,001 | $84.0K | 0.02% | 00.0% | Unchanged |
| Deutsche Bank AG | 28,785 | $89.8K | 0.00% | +28,785 | New |
| New York State Common Retirement Fund | 29,500 | $92.0K | 0.00% | +29,500 | New |
| Rhumbline Advisers | 33,054 | $103.1K | 0.00% | +27,788+527.7% | Added |
| Los Angeles Capital Management LLC | 34,760 | $108.5K | 0.00% | +34,760 | New |
| Price T Rowe Associates Inc | 40,483 | $127.0K | 0.00% | +16,583+69.4% | Added |
| BNP Paribas Arbitrage, SA | 41,586 | $129.7K | 0.00% | +18,508+80.2% | Added |
| Nuveen, LLC | 44,280 | $138.2K | 0.00% | +44,280 | New |
| Kohmann Bosshard Financial Services, LLC | 44,605 | $139.2K | 0.02% | 00.0% | Unchanged |
| Millennium Management LLC | 44,624 | $139.2K | 0.00% | −227,884−83.6% | Reduced |
| Susquehanna Fundamental Investments, LLC | 45,906 | $143.2K | 0.00% | −20,949−31.3% | Reduced |
| Susquehanna International Group, LLP | 57,386 | $179.0K | 0.00% | −345,334−85.8% | Reduced |
| Barclays PLC | 58,898 | $183.8K | 0.00% | +36,361+161.3% | Added |
| Engineers Gate Manager LP | 72,806 | $227.2K | 0.00% | +62,771+625.5% | Added |
| Bank of New York Mellon Corp | 81,392 | $253.9K | 0.00% | +81,392 | New |
| Thrivent Financial for Lutherans | 116,248 | $362.0K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 116,901 | $364.7K | 0.00% | −226,703−66.0% | Reduced |
| FMR LLC | 118,022 | $368.2K | 0.00% | −5,335−4.3% | Reduced |
| Dimensional Fund Advisors LP | 118,126 | $369.5K | 0.00% | +14,153+13.6% | Added |
| Two Sigma Investments, LP | 135,135 | $421.6K | 0.00% | −165,172−55.0% | Reduced |
| Marshall Wace, LLP | 190,397 | $594.0K | 0.00% | −671,172−77.9% | Reduced |
| UBS Group AG | 190,465 | $594.3K | 0.00% | +168,012+748.3% | Added |
| Invesco Ltd. | 195,259 | $609.2K | 0.00% | −60,409−23.6% | Reduced |
| Royal Bank of Canada | 236,726 | $738.0K | 0.00% | +235,397+17,712.3% | Added |
| Acadian Asset Management LLC | 241,977 | $752.0K | 0.00% | −87,329−26.5% | Reduced |
| Northern Trust Corp | 265,752 | $829.1K | 0.00% | +188,394+243.5% | Added |
| Renaissance Technologies LLC | 278,000 | $867.4K | 0.00% | +22,100+8.6% | Added |
| Lakewood Capital Management, LP | 281,279 | $877.6K | 0.07% | 00.0% | Unchanged |
| Bank of America Corp | 302,965 | $945.3K | 0.00% | −8,424−2.7% | Reduced |
| D. E. Shaw & Co., Inc. | 316,474 | $987.4K | 0.00% | −69,306−18.0% | Reduced |
| JPMorgan Chase & Co | 364,444 | $1.14M | 0.00% | −25,400−6.5% | Reduced |
| State Street Corp | 381,208 | $1.19M | 0.00% | +232,231+155.9% | Added |
| Morgan Stanley | 467,844 | $1.46M | 0.00% | +24,289+5.5% | Added |
| Icon Advisers Inc | 750,000 | $2.34M | 0.53% | +750,000 | New |
| Geode Capital Management, LLC | 823,044 | $2.57M | 0.00% | +423,205+105.8% | Added |
| Charles Schwab Investment Management Inc | 962,901 | $3.00M | 0.00% | +600,255+165.5% | Added |
| Brightline Capital Management, LLC | 1,022,000 | $3.19M | 1.37% | +6,000+0.6% | Added |
| Vanguard Group Inc | 1,076,651 | $3.36M | 0.00% | +115,899+12.1% | Added |
| Owl Creek Asset Management, L.P. | 1,669,952 | $5.21M | 0.69% | +1,287,854+337.0% | Added |
| BlackRock, Inc. | 2,255,133 | $7.04M | 0.00% | +1,497,575+197.7% | Added |
| CastleKnight Management LP | 2,766,226 | $8.63M | 0.57% | 00.0% | Unchanged |
| Nut Tree Capital Management, LP | 3,500,000 | $10.9M | 3.21% | 00.0% | Unchanged |
| M&G Plc | 7,625,044 | $22.9M | 0.13% | 00.0% | Unchanged |
| 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 |