Trinseo
TSE was delisted on the 27th of February, 2026.
183 hedge funds and large institutions have $1.55B invested in Trinseo in 2021 Q3 according to their latest regulatory filings, with 23 funds opening new positions, 64 increasing their positions, 67 reducing their positions, and 52 closing their positions.
132% more call options, than puts
Call options by funds: $14.4M | Put options by funds: $6.18M
0.51% more ownership
Funds ownership: 93.04% → 93.55% (+0.51%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
4% less repeat investments, than reductions
Existing positions increased: 64 | Existing positions reduced: 67
9% less capital invested
Capital invested by funds: $1.7B → $1.55B (-$148M)
14% less funds holding
Funds holding: 213 → 183 (-30)
56% less first-time investments, than exits
New positions opened: 23 | Existing positions closed: 52
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$61.6M |
| 2 |
Geode Capital Management
Boston,
Massachusetts
|
+$34M |
| 3 |
Boston Partners
Boston,
Massachusetts
|
+$17M |
| 4 |
Ameriprise
Minneapolis,
Minnesota
|
+$9.11M |
| 5 |
SAM
Scopus Asset Management
New York
|
+$6.24M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PPA
Parametric Portfolio Associates
Seattle,
Washington
|
-$18.9M |
| 2 |
AIM
Artemis Investment Management
Edinburgh,
United Kingdom
|
-$16.5M |
| 3 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
-$11M |
| 4 |
BlackRock
New York
|
-$8.73M |
| 5 |
AllianceBernstein
Nashville,
Tennessee
|
-$8.01M |
TSE Hedge Fund Activity: Q3 2021 in Review
183 of the 5,712 institutional investors tracked by Wall St. Rank reported a position in Trinseo (TSE) for Q3 2021, worth a combined $1.55B — down 8.7% from $1.7B a quarter earlier.
Sellers outnumbered buyers: 52 funds closed out of TSE and 23 opened new positions — a net loss of 29 holders — while 67 trimmed existing stakes and 64 added.
The largest buyer was Fidelity Investments, adding an estimated $61.6M. The largest seller was Parametric Portfolio Associates, exiting entirely with an estimated $18.9M sold.
- 183 institutional investors held Trinseo (TSE) as of Q3 2021, down from 213 in Q2 2021.
- Funds reported $1.55B of Trinseo stock for Q3 2021, down 8.7% quarter-over-quarter.
- 23 funds opened new Trinseo positions in Q3 2021 and 52 closed out, a net change of -29 holders.
- The largest Trinseo buyer in Q3 2021 was Fidelity Investments, an estimated $61.6M added.
- The largest Trinseo seller in Q3 2021 was Parametric Portfolio Associates, an estimated $18.9M sold.
Based on aggregated 13F filings for Q3 2021.