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Ecovyst

169 hedge funds and large institutions have $1.03B invested in Ecovyst in 2025 Q3 according to their latest regulatory filings, with 31 funds opening new positions, 63 increasing their positions, 51 reducing their positions, and 37 closing their positions.

New
Increased
Maintained
Reduced
Closed

24% more repeat investments, than reductions

Existing positions increased: 63 | Existing positions reduced: 51

6% more capital invested

Capital invested by funds: $976M → $1.03B (+$55.3M)

1.66% more ownership

Funds ownership: 101.37%103.02% (+1.7%)

5% less funds holding

Funds holding: 177169 (-8)

16% less first-time investments, than exits

New positions opened: 31 | Existing positions closed: 37

29% less funds holding in top 10

Funds holding in top 10: 75 (-2)

Holders
169
Holders Change
-8
Holders Change %
-4.52%
% of All Funds
2.22%
Holding in Top 10
5
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-28.57%
% of All Funds
0.07%
New
31
Increased
63
Reduced
51
Closed
37
Calls
$3K
Puts
Net Calls
+$3K
Net Calls Change
-$4.11M
Name Holding Trade Value Shares
Change
Change in
Stake
Barclays
51
Barclays
United Kingdom
$2.17M +$366K +41,516 +20%
Renaissance Technologies
52
Renaissance Technologies
New York
$2.11M -$69.6K -7,900 -3%
NIMC
53
Nierenberg Investment Management Company
Washington
$2M
Swiss National Bank
54
Swiss National Bank
Switzerland
$1.99M +$116K +13,200 +6%
YIH
55
Y-Intercept (HK)
Hong Kong
$1.98M +$1.99M +226,182 New
UBS AM
56
UBS AM
Illinois
$1.88M -$1.05M -119,430 -36%
Fidelity Investments
57
Fidelity Investments
Massachusetts
$1.81M +$1.77M +201,387 +3,807%
SEI Investments
58
SEI Investments
Pennsylvania
$1.61M -$2.07K -235 -0.1%
RhumbLine Advisers
59
RhumbLine Advisers
Massachusetts
$1.56M +$50.6K +5,740 +3%
CC
60
Clearline Capital
New York
$1.47M +$1.48M +168,144 New
EIP
61
Easterly Investment Partners
Massachusetts
$1.47M +$970 +110 +0.1%
AI
62
Atom Investors
Texas
$1.46M -$195K -22,103 -12%
AQR Capital Management
63
AQR Capital Management
Connecticut
$1.36M +$767K +87,042 +128%
Legal & General Group
64
Legal & General Group
United Kingdom
$1.16M +$203 +23 +0%
Prudential Financial
65
Prudential Financial
New Jersey
$1.15M -$2.59M -293,350 -69%
BHCM
66
Brevan Howard Capital Management
Jersey
$1.14M +$943K +106,935 +460%
Amundi
67
Amundi
France
$1.12M -$25.7K -2,918 -2%
AllianceBernstein
68
AllianceBernstein
Tennessee
$1.09M -$20.9M -2,366,349 -95%
HSBC Holdings
69
HSBC Holdings
United Kingdom
$1.04M +$905K +102,630 +645%
California State Teachers Retirement System (CalSTRS)
70
California State Teachers Retirement System (CalSTRS)
California
$1.04M +$141K +16,024 +16%
Federated Hermes
71
Federated Hermes
Pennsylvania
$1.01M +$104K +11,845 +11%
Jane Street
72
Jane Street
New York
$905K -$1.27M -144,143 -58%
Wells Fargo
73
Wells Fargo
California
$899K +$194K +22,061 +27%
T. Rowe Price Associates
74
T. Rowe Price Associates
Maryland
$779K +$79.2K +8,983 +11%
QCM
75
Quantinno Capital Management
New York
$775K +$358K +40,584 +85%

ECVT Hedge Fund Activity: Q3 2025 in Review

169 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in Ecovyst (ECVT) for Q3 2025, worth a combined $1.03B — up 5.7% from $976M a quarter earlier.

Sellers outnumbered buyers: 37 funds closed out of ECVT and 31 opened new positions — a net loss of 6 holders — while 51 trimmed existing stakes and 63 added.

The largest buyer was Rubric Capital Management (New York), adding an estimated $50.2M. The largest seller was Western Standard LLC, exiting entirely with an estimated $29.4M sold.

  • 169 institutional investors held Ecovyst (ECVT) as of Q3 2025, down from 177 in Q2 2025.
  • Funds reported $1.03B of Ecovyst stock for Q3 2025, up 5.7% quarter-over-quarter.
  • 31 funds opened new Ecovyst positions in Q3 2025 and 37 closed out, a net change of -6 holders.
  • The largest Ecovyst buyer in Q3 2025 was Rubric Capital Management (New York), an estimated $50.2M added.
  • The largest Ecovyst seller in Q3 2025 was Western Standard LLC, an estimated $29.4M sold.

Based on aggregated 13F filings for Q3 2025.