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TSE

Trinseo
TSE

Delisted

TSE was delisted on the 27th of February, 2026.

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143 hedge funds and large institutions have $242M invested in Trinseo in 2023 Q3 according to their latest regulatory filings, with 32 funds opening new positions, 44 increasing their positions, 47 reducing their positions, and 33 closing their positions.

New
Increased
Maintained
Reduced
Closed

1% less funds holding

Funds holding: 144 → 143 (-1)

3% less first-time investments, than exits

New positions opened: 32 | Existing positions closed: 33

6% less repeat investments, than reductions

Existing positions increased: 44 | Existing positions reduced: 47

9.28% less ownership

Funds ownership: 93.53% → 84.25% (-9.3%)

13% less call options, than puts

Call options by funds: $1.96M | Put options by funds: $2.26M

42% less capital invested

Capital invested by funds: $418M → $242M (-$177M)

Holders
143
Holders Change
-1
Holders Change %
-0.69%
% of All Funds
2.27%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
32
Increased
44
Reduced
47
Closed
33
Calls
$1.96M
Puts
$2.26M
Net Calls
-$304K
Net Calls Change
+$1.54M

Top Buyers

1
Millennium Management
Millennium Management
New York
+$16.3M
2
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management
California
+$4.83M
3
CSS
Cubist Systematic Strategies
Connecticut
+$4.5M
4
DRZID
DePrince Race & Zollo Inc (DRZ)
Florida
+$4.14M
5
Marshall Wace
Marshall Wace
United Kingdom
+$4.04M

Top Sellers

1
BlackRock
BlackRock
New York
-$40M
2
Fisher Asset Management
Fisher Asset Management
Washington
-$17.4M
3
TC
Towle & Co
Colorado
-$15M
4
Vanguard Group
Vanguard Group
Pennsylvania
-$8.64M
5
State Street
State Street
Massachusetts
-$7.07M
Name Holding Trade Value Shares
Change 		Change in
Stake
MGIM
1
M&G Investment Management
United Kingdom
$61M – – –
BlackRock
2
BlackRock
New York
$21.5M -$40M -3,151,679 -54%
Fuller & Thaler Asset Management
3
Fuller & Thaler Asset Management
California
$12.8M -$313K -24,703 -2%
Millennium Management
4
Millennium Management
New York
$10.7M +$16.3M +1,286,022 +5,559%
Charles Schwab
5
Charles Schwab
California
$9.83M +$2.67M +210,857 +21%
Hotchkis & Wiley Capital Management
6
Hotchkis & Wiley Capital Management
California
$9.15M +$4.83M +380,720 +51%
DRZID
7
DePrince Race & Zollo Inc (DRZ)
Florida
$8.28M +$4.14M +326,439 +48%
Vanguard Group
8
Vanguard Group
Pennsylvania
$7.62M -$8.64M -681,357 -42%
State Street
9
State Street
Massachusetts
$6.7M -$7.07M -557,674 -40%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$5.86M +$307K +24,213 +3%
Jacobs Levy Equity Management
11
Jacobs Levy Equity Management
New Jersey
$5.58M +$894K +70,501 +12%
Dimensional Fund Advisors
12
Dimensional Fund Advisors
Texas
$5.27M -$6.8M -536,293 -45%
Citadel Advisors
13
Citadel Advisors
Florida
$5.1M -$489K -38,542 -6%
Russell Investments Group
14
Russell Investments Group
United Kingdom
$4.42M +$3.09M +243,941 +82%
BCM
15
Bridgeway Capital Management
Texas
$3.53M +$1.54M +121,600 +39%
D.E. Shaw & Co
16
D.E. Shaw & Co
New York
$3.06M +$2.47M +194,868 +109%
CSS
17
Cubist Systematic Strategies
Connecticut
$2.9M +$4.5M +354,647 New
Northern Trust
18
Northern Trust
Illinois
$2.82M -$357K -28,123 -8%
AQR Capital Management
19
AQR Capital Management
Connecticut
$2.81M +$3.53M +278,005 +420%
Marshall Wace
20
Marshall Wace
United Kingdom
$2.6M +$4.04M +318,801 New
Bank of America
21
Bank of America
North Carolina
$2.46M +$1.36M +107,345 +55%
Qube Research & Technologies (QRT)
22
Qube Research & Technologies (QRT)
United Kingdom
$2.41M +$3.74M +294,871 New
Renaissance Technologies
23
Renaissance Technologies
New York
$2.36M +$864K +68,100 +31%
Susquehanna International Group
24
Susquehanna International Group
Pennsylvania
$2.05M +$3.05M +240,462 +2,176%
HF
25
HRT Financial
New York
$1.99M +$2.88M +226,917 +1,390%
1
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TSE Hedge Fund Activity: Q3 2023 in Review

143 of the 6,301 institutional investors tracked by Wall St. Rank reported a position in Trinseo (TSE) for Q3 2023, worth a combined $242M — down 42% from $418M a quarter earlier.

Sellers outnumbered buyers: 33 funds closed out of TSE and 32 opened new positions — a net loss of 1 holder — while 47 trimmed existing stakes and 44 added.

The largest buyer was Millennium Management, adding an estimated $16.3M. The largest seller was BlackRock, cutting an estimated $40M.

  • 143 institutional investors held Trinseo (TSE) as of Q3 2023, down from 144 in Q2 2023.
  • Funds reported $242M of Trinseo stock for Q3 2023, down 42% quarter-over-quarter.
  • 32 funds opened new Trinseo positions in Q3 2023 and 33 closed out, a net change of -1 holder.
  • The largest Trinseo buyer in Q3 2023 was Millennium Management, an estimated $16.3M added.
  • The largest Trinseo seller in Q3 2023 was BlackRock, an estimated $40M sold.

Based on aggregated 13F filings for Q3 2023.