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TSE

Trinseo

Delisted

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

193 hedge funds and large institutions have $1.9B invested in Trinseo in 2018 Q4 according to their latest regulatory filings, with 26 funds opening new positions, 65 increasing their positions, 84 reducing their positions, and 55 closing their positions.

New
Increased
Maintained
Reduced
Closed

0.23% less ownership

Funds ownership: 98.11%97.87% (-0.23%)

14% less funds holding

Funds holding: 225193 (-32)

23% less repeat investments, than reductions

Existing positions increased: 65 | Existing positions reduced: 84

25% less funds holding in top 10

Funds holding in top 10: 43 (-1)

42% less capital invested

Capital invested by funds: $3.27B → $1.9B (-$1.37B)

53% less first-time investments, than exits

New positions opened: 26 | Existing positions closed: 55

54% less call options, than puts

Call options by funds: $1.5M | Put options by funds: $3.24M

Holders
193
Holders Change
-32
Holders Change %
-14.22%
% of All Funds
4.3%
Holding in Top 10
3
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-25%
% of All Funds
0.07%
New
26
Increased
65
Reduced
84
Closed
55
Calls
$1.5M
Puts
$3.24M
Net Calls
-$1.74M
Net Calls Change
-$2.41M
Name Holding Trade Value Shares
Change
Change in
Stake
Bank of Montreal
51
Bank of Montreal
Ontario, Canada
$4.36M +$790K +14,534 +18%
LM
52
Luminus Management
Texas
$4.03M +$4.79M +88,100 New
PNC Financial Services Group
53
PNC Financial Services Group
Pennsylvania
$4.01M -$1.82M -33,460 -28%
Nordea Investment Management
54
Nordea Investment Management
Sweden
$3.95M -$2.98M -54,739 -39%
PPA
55
Parametric Portfolio Associates
Washington
$3.91M +$140K +2,583 +3%
QI
56
QS Investors
New York
$3.62M
Russell Investments Group
57
Russell Investments Group
United Kingdom
$3.57M +$833K +15,317 +24%
EGM
58
Engineers Gate Manager
New York
$3.54M +$2.42M +44,466 +136%
Deutsche Bank
59
Deutsche Bank
Germany
$3.45M -$13.5M -248,814 -77%
Swiss National Bank
60
Swiss National Bank
Switzerland
$3.45M -$54.4K -1,000 -1%
PSUF
61
People's United Financial
Connecticut
$3.44M -$552K -10,161 -12%
California State Teachers Retirement System (CalSTRS)
62
California State Teachers Retirement System (CalSTRS)
California
$3.07M +$82.2K +1,513 +2%
Millennium Management
63
Millennium Management
New York
$3.02M -$4.49M -82,623 -56%
Mackenzie Financial
64
Mackenzie Financial
Ontario, Canada
$2.98M -$15.1K -278 -0.4%
PAM
65
Panagora Asset Management
Massachusetts
$2.84M +$1.17M +21,588 +53%
Fiera Capital (Canada)
66
Fiera Capital (Canada)
Quebec, Canada
$2.83M -$62.1K -1,143 -2%
B
67
Barings
North Carolina
$2.82M -$451K -8,300 -12%
RhumbLine Advisers
68
RhumbLine Advisers
Massachusetts
$2.7M +$995K +18,305 +45%
GC
69
Globeflex Capital
California
$2.68M +$65.4K +1,203 +2%
CS
70
Credit Suisse
Switzerland
$2.55M -$175K -3,220 -5%
SSCM
71
Summit Street Capital Management
New York
$2.45M +$2.91M +53,561 New
UBS Group
72
UBS Group
Switzerland
$2.36M -$77.6K -1,428 -3%
New York State Common Retirement Fund
73
New York State Common Retirement Fund
New York
$2.3M -$326K -6,001 -11%
D.E. Shaw & Co
74
D.E. Shaw & Co
New York
$2.28M +$1.54M +28,252 +131%
GC
75
Guggenheim Capital
Illinois
$2.13M -$261K -4,804 -9%

TSE Hedge Fund Activity: Q4 2018 in Review

193 of the 4,488 institutional investors tracked by Wall St. Rank reported a position in Trinseo (TSE) for Q4 2018, worth a combined $1.9B — down 42% from $3.27B a quarter earlier.

Sellers outnumbered buyers: 55 funds closed out of TSE and 26 opened new positions — a net loss of 29 holders — while 84 trimmed existing stakes and 65 added.

The largest buyer was Prudential plc, adding an estimated $87.8M. The largest seller was Glenmede Trust, cutting an estimated $38.1M.

  • 193 institutional investors held Trinseo (TSE) as of Q4 2018, down from 225 in Q3 2018.
  • Funds reported $1.9B of Trinseo stock for Q4 2018, down 42% quarter-over-quarter.
  • 26 funds opened new Trinseo positions in Q4 2018 and 55 closed out, a net change of -29 holders.
  • The largest Trinseo buyer in Q4 2018 was Prudential plc, an estimated $87.8M added.
  • The largest Trinseo seller in Q4 2018 was Glenmede Trust, an estimated $38.1M sold.

Based on aggregated 13F filings for Q4 2018.