TrinseoTSEOQ
13F holders, Q1 2026 (March 31)14holders −58
2new positions
59sold out
$0.10avg. 13F price*
At the end of Q1 2026, 14 institutions reported holding Trinseo PLC (TSEOQ) in their 13F filings, down 58 from Q4 2025. 2 opened new positions and 59 sold out. The largest holders were Kohmann Bosshard Financial Services, LLC ($5K), Nuveen, LLC ($5K) and EverSource Wealth Advisors, LLC ($570).
- Company
- Trinseo PLC
- CUSIP
- G9059U107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 2 | $9 |
| Exits | 59 | $10.1M |
All 13F filers, Q4 2025 → Q1 2026: 1,625 shares bought and 20,384,859 shares sold, net −20,383,234 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 14 holders
| Kohmann Bosshard Financial Services, LLC | 0.00% | No change | 44,605 | $5K |
| Nuveen, LLC | 0.00% | No change | 44,280 | $5K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +6.8% | 5,430 | $570 |
| Barclays PLC | 0.00% | Reduce -91.0% | 4,802 | $505 |
| GAMMA Investing LLC | 0.00% | Add +104.2% | 2,148 | $226 |
| Rhumbline Advisers | 0.00% | Reduce -92.5% | 1,654 | $173 |
| McIlrath & Eck, LLC | 0.00% | No change | 1,444 | $152 |
| SWAN Capital LLC | 0.00% | No change | 250 | $26 |
| Rockefeller Capital Management L.P. | 0.00% | No change | 160 | $17 |
| Sunbelt Securities, Inc. | 0.00% | New | 64 | $7 |
| Essential Partners LLC | 0.00% | Add +633.3% | 66 | $7 |
| IFP Advisors, Inc | 0.00% | Add +323.1% | 55 | $6 |
| Farther Finance Advisors, LLC | 0.00% | New | 15 | $2 |
| Rothschild Investment LLC | 0.00% | Add +600.0% | 7 | $1 |
"% of holder's portfolio" is TSEOQ's weight in each manager's 13F, not the share of Trinseo PLC the manager owns.