We are live on ! Find out more
TSE

Trinseo

Delisted

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

208 hedge funds and large institutions have $1.77B invested in Trinseo in 2021 Q1 according to their latest regulatory filings, with 51 funds opening new positions, 58 increasing their positions, 76 reducing their positions, and 37 closing their positions.

New
Increased
Maintained
Reduced
Closed

77% more call options, than puts

Call options by funds: $15.9M | Put options by funds: $8.97M

38% more first-time investments, than exits

New positions opened: 51 | Existing positions closed: 37

21% more capital invested

Capital invested by funds: $1.47B → $1.77B (+$308M)

6% more funds holding

Funds holding: 196208 (+12)

2.57% less ownership

Funds ownership: 95.06%92.5% (-2.6%)

24% less repeat investments, than reductions

Existing positions increased: 58 | Existing positions reduced: 76

29% less funds holding in top 10

Funds holding in top 10: 75 (-2)

Holders
208
Holders Change
+12
Holders Change %
+6.12%
% of All Funds
3.65%
Holding in Top 10
5
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-28.57%
% of All Funds
0.09%
New
51
Increased
58
Reduced
76
Closed
37
Calls
$15.9M
Puts
$8.97M
Net Calls
+$6.92M
Net Calls Change
+$3.64M
Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$431M +$17M +278,347 +4%
AllianceBernstein
2
AllianceBernstein
Tennessee
$127M -$28.2M -461,411 -19%
Vanguard Group
3
Vanguard Group
Pennsylvania
$101M +$3.38M +55,421 +4%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$96M +$2.86M +46,856 +3%
State Street
5
State Street
Massachusetts
$83.5M -$1.87M -30,623 -2%
LSV Asset Management
6
LSV Asset Management
Illinois
$82.2M -$10.1M -165,133 -11%
Fuller & Thaler Asset Management
7
Fuller & Thaler Asset Management
California
$68M +$9.24M +151,441 +17%
Fidelity Investments
8
Fidelity Investments
Massachusetts
$42.3M +$6.88M +112,685 +20%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$39.1M +$3.3M +54,141 +10%
Charles Schwab
10
Charles Schwab
California
$36M -$2.37M -38,866 -6%
Jacobs Levy Equity Management
11
Jacobs Levy Equity Management
New Jersey
$31.4M +$4.29M +70,310 +17%
Boston Partners
12
Boston Partners
Massachusetts
$29.9M +$1.67M +27,417 +6%
Northern Trust
13
Northern Trust
Illinois
$29.4M -$1.74M -28,511 -6%
Bank of New York Mellon
14
Bank of New York Mellon
New York
$28.9M -$101K -1,659 -0.4%
N
15
Nuveen
North Carolina
$27.9M -$538K -8,824 -2%
JP Morgan Chase
16
JP Morgan Chase
New York
$26.2M -$2.76M -45,243 -10%
Prudential Financial
17
Prudential Financial
New Jersey
$24.7M +$11.6M +189,620 +96%
Norges Bank
18
Norges Bank
Norway
$23.9M -$4.64M -76,009 -17%
Federated Hermes
19
Federated Hermes
Pennsylvania
$20.3M +$9.62M +157,695 +98%
PPA
20
Parametric Portfolio Associates
Washington
$19.6M +$4.8M +78,671 +34%
Principal Financial Group
21
Principal Financial Group
Iowa
$19.3M -$5.83M -95,536 -24%
Bank of America
22
Bank of America
North Carolina
$16M +$1.14M +18,746 +8%
Invesco
23
Invesco
Georgia
$15.5M +$1.87M +30,673 +14%
AIM
24
Artemis Investment Management
United Kingdom
$15.4M +$14.8M +241,963 New
State of Wisconsin Investment Board
25
State of Wisconsin Investment Board
Wisconsin
$14.7M +$293K +4,800 +2%

TSE Hedge Fund Activity: Q1 2021 in Review

208 of the 5,695 institutional investors tracked by Wall St. Rank reported a position in Trinseo (TSE) for Q1 2021, worth a combined $1.77B — up 21% from $1.47B a quarter earlier.

Buyers outnumbered sellers: 51 funds opened new TSE positions and 37 closed out — a net gain of 14 holders — while 58 added to existing stakes and 76 trimmed.

The largest buyer was BlackRock, adding an estimated $17M. The largest seller was Towle & Co, exiting entirely with an estimated $38.2M sold.

  • 208 institutional investors held Trinseo (TSE) as of Q1 2021, up from 196 in Q4 2020.
  • Funds reported $1.77B of Trinseo stock for Q1 2021, up 21% quarter-over-quarter.
  • 51 funds opened new Trinseo positions in Q1 2021 and 37 closed out, a net change of +14 holders.
  • The largest Trinseo buyer in Q1 2021 was BlackRock, an estimated $17M added.
  • The largest Trinseo seller in Q1 2021 was Towle & Co, an estimated $38.2M sold.

Based on aggregated 13F filings for Q1 2021.