Trinseo PLC (TSE) — Institutional Holders, Q2 2026
6 institutional investment managers reported a TSE position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $740.00. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
TSE in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- GAMMA InvestingNew · +412,655 sh+$660.00
Biggest sellers
- NuveenSold out · -44,280 sh-$71.00
- BARCLAYS PLCSold out · -4,802 sh-$8.00
- RHUMBLINE ADVISERSSold out · -1,654 sh-$3.00
TSE 13F holders ranked 1–6 of 6
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | GAMMA Investing#1 · 412,655 sh | 412,655 | $660.00 | — | New |
| 2 | Kohmann Bosshard Financial Services#2 · 44,605 sh | 44,605 | $71.00 | 0.00% | 0.0% |
| 3 | EverSource Wealth Advisors#3 · 5,375 sh | 5,375 | $9.00 | 0.00% | +417.3% |
| 4 | Farther Finance Advisors#4 · 15 sh | 15 | $0.00 | — | 0.0% |
| 5 | Essential Partners#5 · 30 sh | 30 | $0.00 | — | -54.5% |
| 6 | ROTHSCHILD INVESTMENT#6 · 7 sh | 7 | $0.00 | 0.00% | 0.0% |
Funds that sold out of TSE in Q2 2026 (6)
Held TSE at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Nuveen44,280 sh | 44,280 | $4.6K |
| BARCLAYS PLC4,802 sh | 4,802 | $505.00 |
| RHUMBLINE ADVISERS1,654 sh | 1,654 | $173.00 |
| SWAN Capital250 sh | 250 | $26.00 |
| Rockefeller Capital Management L.P.160 sh | 160 | $17.00 |
| IFP Advisors55 sh | 55 | $6.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.