Trinseo PLC (NYSE:TSE) currently has 2 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| M&G Plc | 30 Sep, 2025 | 7,625,044 | 0 | 0.00% | $15,250,088.00 |
| Nut Tree Capital Management, LP | 30 Sep, 2025 | 3,500,000 | 0 | 0.00% | $8,225,000.00 |
| CastleKnight Management LP | 30 Sep, 2025 | 2,466,826 | -299,400 | -10.82% | $5,797,041.00 |
| BlackRock, Inc. | 30 Sep, 2025 | 2,369,672 | 114,539 | 5.08% | $5,568,730.00 |
| Owl Creek Asset Management, L.P. | 30 Sep, 2025 | 1,669,952 | 0 | 0.00% | $3,924,387.00 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 30 Sep, 2025 | 1,505,068 | 542,167 | 56.31% | $3,536,910.00 |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC | 30 Sep, 2025 | 1,060,000 | 38,000 | 3.72% | $2,491,000.00 |
| ICON ADVISERS INC/CO | 30 Sep, 2025 | 1,000,000 | 250,000 | 33.33% | $2,350,000.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 30 Sep, 2025 | 841,828 | 18,784 | 2.28% | $1,978,715.00 |
| VANGUARD GROUP INC | 30 Sep, 2025 | 755,643 | -321,008 | -29.82% | $1,775,761.00 |
| MORGAN STANLEY | 30 Sep, 2025 | 454,287 | -13,557 | -2.90% | $1,067,574.00 |
| STATE STREET CORP | 30 Sep, 2025 | 423,786 | 42,578 | 11.17% | $995,897.00 |
| BANK OF AMERICA CORP /DE/ | 30 Sep, 2025 | 363,641 | 60,676 | 20.03% | $854,556.00 |
| RENAISSANCE TECHNOLOGIES LLC | 30 Sep, 2025 | 314,700 | 36,700 | 13.20% | $739,545.00 |
| LAKEWOOD CAPITAL MANAGEMENT, LP | 30 Sep, 2025 | 281,279 | 0 | 0.00% | $661,006.00 |
| NORTHERN TRUST CORP | 30 Sep, 2025 | 268,689 | 2,937 | 1.11% | $631,419.00 |
| ROYAL BANK OF CANADA | 30 Sep, 2025 | 227,821 | -8,905 | -3.76% | $536,000.00 |
| UBS Group AG | 30 Sep, 2025 | 199,804 | 9,339 | 4.90% | $469,539.00 |
| Alta Fundamental Advisers LLC | 30 Sep, 2025 | 152,974 | 152,974 | 0.00% | $359,489.00 |
| D. E. Shaw & Co., Inc. | 30 Sep, 2025 | 147,316 | -169,158 | -53.45% | $346,193.00 |