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TSE

Trinseo

Delisted

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.

New
Increased
Maintained
Reduced
Closed

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: 22 (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: 213183 (-30)

56% less first-time investments, than exits

New positions opened: 23 | Existing positions closed: 52

Holders
183
Holders Change
-30
Holders Change %
-14.08%
% of All Funds
3.2%
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.04%
New
23
Increased
64
Reduced
67
Closed
52
Calls
$14.4M
Puts
$6.18M
Net Calls
+$8.18M
Net Calls Change
+$1.55M

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.