TrinseoTSEOQ
13F holders, Q2 2025 (June 30)80holders −5
21new positions
26sold out
3famous investors
$3.09avg. 13F price*
At the end of Q2 2025, 80 institutions reported holding Trinseo PLC (TSEOQ) in their 13F filings, down 5 from Q1 2025. 21 opened new positions and 26 sold out. The largest holders were M&G PLC ($22.9M), Nut Tree Capital Management, LP ($10.9M) and CastleKnight Management LP ($8.6M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Trinseo PLC
- CUSIP
- G9059U107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 21 | $3.3M |
| Exits | 26 | $5.0M |
All 13F filers, Q1 2025 → Q2 2025: 6,044,950 shares bought and 3,569,848 shares sold, net +2,475,102 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 80 holders
| M&G PLC | 0.13% | No change | 7,625,044 | $22.9M |
| Nut Tree Capital Management, LP | 3.70% | No change | 3,500,000 | $10.9M |
| CastleKnight Management LP | 0.58% | No change | 2,766,226 | $8.6M |
| BlackRock, Inc. | 0.00% | Add +197.7% | 2,255,133 | $7.0M |
| Owl Creek Asset Management, L.P. | 0.69% | Add +337.1% | 1,669,952 | $5.2M |
| Vanguard Group Inc. | 0.00% | Add +12.1% | 1,076,651 | $3.4M |
| Brightline Capital Management, LLC | 1.37% | Add +0.6% | 1,022,000 | $3.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +165.5% | 962,901 | $3.0M |
| Geode Capital Management, LLC | 0.00% | Add +105.8% | 823,044 | $2.6M |
| Icon Advisers Inc. | 0.54% | New | 750,000 | $2.3M |
| Morgan Stanley | 0.00% | Add +5.5% | 467,844 | $1.5M |
| State Street Corp. | 0.00% | Add +155.9% | 381,208 | $1.2M |
| JPMorgan Chase & Co. | 0.00% | Reduce -6.5% | 364,444 | $1.1M |
| D. E. Shaw & Co. | 0.00% | Reduce -18.0% | 316,474 | $987K |
| Bank of America Corp. | 0.00% | Reduce -2.7% | 302,965 | $945K |
| Lakewood Capital Management, LP | 0.07% | No change | 281,279 | $878K |
| Renaissance Technologies | 0.00% | Add +8.6% | 278,000 | $867K |
| Northern Trust Corp. | 0.00% | Add +243.5% | 265,752 | $829K |
| Acadian Asset Management LLC | 0.00% | Reduce -26.5% | 241,977 | $752K |
| Royal Bank of Canada | 0.00% | Add +17712.3% | 236,726 | $738K |
| Invesco Ltd. | 0.00% | Reduce -23.6% | 195,259 | $609K |
| UBS Group AG | 0.00% | Add +748.3% | 190,465 | $594K |
| Marshall Wace, LLP | 0.00% | Reduce -77.9% | 190,397 | $594K |
| Two Sigma Investments, LP | 0.00% | Reduce -55.0% | 135,135 | $422K |
| Dimensional Fund Advisors LP | 0.00% | Add +13.6% | 118,126 | $369K |
| FMR LLC | 0.00% | Reduce -4.3% | 118,022 | $368K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -66.0% | 116,901 | $365K |
| Thrivent Financial for Lutherans | 0.00% | No change | 116,248 | $362K |
| Bank of New York Mellon Corp | 0.00% | New | 81,392 | $254K |
| Engineers Gate Manager LP | 0.00% | Add +625.5% | 72,806 | $227K |
| Barclays PLC | 0.00% | Add +161.3% | 58,898 | $184K |
| Susquehanna International Group, LLP | 0.00% | Reduce -85.8% | 57,386 | $179K |
| Susquehanna Fundamental Investments, LLC | 0.00% | Reduce -31.3% | 45,906 | $143K |
| Millennium Management | 0.00% | Reduce -83.6% | 44,624 | $139K |
| Kohmann Bosshard Financial Services, LLC | 0.02% | No change | 44,605 | $139K |
| Nuveen, LLC | 0.00% | New | 44,280 | $138K |
| BNP Paribas Financial Markets | 0.00% | Add +80.2% | 41,586 | $130K |
| T. Rowe Price Associates Inc. | 0.00% | Add +69.4% | 40,483 | $127K |
| Los Angeles Capital Management LLC | 0.00% | New | 34,760 | $108K |
| Rhumbline Advisers | 0.00% | Add +527.7% | 33,054 | $103K |
| New York State Common Retirement Fund | 0.00% | New | 29,500 | $92K |
| Deutsche Bank AG | 0.00% | New | 28,785 | $90K |
| JB Capital Partners LP | 0.02% | No change | 27,001 | $84K |
| Cetera Investment Advisers | 0.00% | Reduce -0.6% | 25,181 | $79K |
| Wells Fargo & Company | 0.00% | Add +89.2% | 24,220 | $76K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | New | 18,600 | $58K |
| Meeder Asset Management Inc. | 0.00% | No change | 16,116 | $50K |
| Intech Investment Management LLC | 0.00% | New | 15,514 | $48K |
| Red Door Wealth Management, LLC | 0.01% | No change | 15,000 | $47K |
| PFG Investments, LLC | 0.00% | Add +0.0% | 14,002 | $44K |
| Citigroup Inc. | 0.00% | Add +142.8% | 13,820 | $43K |
| Sugar Maple Asset Management, LLC | 0.03% | New | 13,000 | $41K |
| Gsa Capital Partners LLP | 0.00% | Reduce -88.2% | 12,450 | $39K |
| Two Sigma Advisers, LP | 0.00% | Reduce -94.6% | 11,400 | $36K |
| May Hill Capital, LLC | 0.01% | New | 10,594 | $33K |
| SG Americas Securities, LLC | 0.00% | Reduce -51.2% | 10,218 | $32K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | New | 8,769 | $27K |
| Ameritas Investment Partners, Inc. | 0.00% | New | 3,476 | $11K |
| Legal & General Group Plc | 0.00% | New | 3,098 | $10K |
| California State Teachers Retirement System | 0.00% | New | 2,124 | $7K |
| McIlrath & Eck, LLC | 0.00% | No change | 1,444 | $5K |
| Amalgamated Bank | 0.00% | New | 1,163 | $4K |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 1,000 | $3K |
| Sterling Capital Management LLC | 0.00% | New | 919 | $3K |
| Headlands Technologies LLC | 0.00% | New | 901 | $3K |
| Raymond James Financial Inc. | 0.00% | New | 718 | $2K |
| Russell Investments Group, Ltd. | 0.00% | No change | 582 | $2K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 402 | $1K |
| Simplex Trading, LLC | 0.00% | Reduce -64.9% | 616 | $1K |
| Group One Trading LLC | 0.00% | No change | 275 | $858 |
| MAI Capital Management | 0.00% | Reduce -10.0% | 270 | $843 |
| SWAN Capital LLC | 0.00% | No change | 250 | $780 |
| Federated Hermes, Inc. | 0.00% | No change | 241 | $752 |
| Osaic Holdings, Inc. | 0.00% | Reduce -39.7% | 237 | $740 |
| Stephens Consulting, LLC | 0.00% | No change | 231 | $721 |
| Keystone Global Partners, LLC | 0.00% | New | 20 | $62 |
| SouthState Bank Corp | 0.00% | New | 13 | $41 |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -88.2% | 8 | $25 |
| Allworth Financial LP | 0.00% | No change | 7 | $22 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -81.0% | 4 | $12 |
"% of holder's portfolio" is TSEOQ's weight in each manager's 13F, not the share of Trinseo PLC the manager owns.