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Ecovyst
ECVT

161 hedge funds and large institutions have $1.14B invested in Ecovyst in 2025 Q4 according to their latest regulatory filings, with 20 funds opening new positions, 47 increasing their positions, 60 reducing their positions, and 25 closing their positions.

New
Increased
Maintained
Reduced
Closed

40% more funds holding in top 10

Funds holding in top 10: 5 → 7 (+2)

10% more capital invested

Capital invested by funds: $1.03B → $1.14B (+$104M)

0.78% less ownership

Funds ownership: 103.02% → 102.25% (-0.78%)

5% less funds holding

Funds holding: 169 → 161 (-8)

20% less first-time investments, than exits

New positions opened: 20 | Existing positions closed: 25

22% less repeat investments, than reductions

Existing positions increased: 47 | Existing positions reduced: 60

Holders
161
Holders Change
-8
Holders Change %
-4.73%
% of All Funds
1.96%
Holding in Top 10
7
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+40%
% of All Funds
0.09%
New
20
Increased
47
Reduced
60
Closed
25
Calls
$585K
Puts
–
Net Calls
+$585K
Net Calls Change
+$582K

Top Buyers

1
BCM
Brightline Capital Management
Florida
+$17.9M
2
OCM
Oaktree Capital Management
California
+$12.2M
3
NA
NewEdge Advisors
Louisiana
+$7.81M
4
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management
California
+$6.25M
5
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$6.15M

Top Sellers

1
Boston Partners
Boston Partners
Massachusetts
-$28.1M
2
SCM
Shapiro Capital Management
Georgia
-$14.2M
3
SCM
Simcoe Capital Management
New York
-$6.72M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$4.65M
5
Brown Advisory
Brown Advisory
Maryland
-$3.93M
Name Holding Trade Value Shares
Change 		Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$108M +$1.67M +191,394 +2%
RCMNY
2
Rubric Capital Management (New York)
New York
$102M +$873K +100,000 +1%
BlackRock
3
BlackRock
New York
$102M +$1.56M +179,210 +2%
Hotchkis & Wiley Capital Management
4
Hotchkis & Wiley Capital Management
California
$93.1M +$6.25M +716,240 +8%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$62.1M +$1.14M +130,206 +2%
MP
6
Mangrove Partners
Connecticut
$53M -$228K -26,184 -0.5%
Brown Advisory
7
Brown Advisory
Maryland
$48.9M -$3.93M -450,057 -8%
OCM
8
Oaktree Capital Management
California
$41.4M +$12.2M +1,395,481 +49%
Allspring Global Investments
9
Allspring Global Investments
North Carolina
$40.9M -$3.31M -379,472 -8%
William Blair Investment Management
10
William Blair Investment Management
Illinois
$26.6M -$2.49M -285,411 -9%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$26.1M -$261K -29,956 -1%
State Street
12
State Street
Massachusetts
$24.7M +$154K +17,702 +0.7%
SCM
13
Shapiro Capital Management
Georgia
$22.2M -$14.2M -1,630,805 -42%
Charles Schwab
14
Charles Schwab
California
$22.1M +$249K +28,528 +1%
MVP
15
Medina Value Partners
California
$21.3M +$278K +31,877 +1%
FWSM
16
First Wilshire Securities Management
California
$21.2M -$69.5K -7,961 -0.4%
Ameriprise
17
Ameriprise
Minnesota
$21M +$34.3K +3,935 +0.2%
BCM
18
Brightline Capital Management
Florida
$19.9M +$17.9M +2,050,000 New
ICM
19
Invenomic Capital Management
Massachusetts
$18.6M -$24.8K -2,846 -0.1%
ONPI
20
Owls Nest Partners IA
Pennsylvania
$17.8M +$1.53M +175,060 +11%
Arrowstreet Capital
21
Arrowstreet Capital
Massachusetts
$13.6M +$6.15M +704,575 +102%
TSW
22
Thompson Siegel & Walmsley
Virginia
$13.3M -$1.36M -155,844 -10%
Point72 Asset Management
23
Point72 Asset Management
Connecticut
$12.5M +$510K +58,496 +5%
Loomis, Sayles & Company
24
Loomis, Sayles & Company
Massachusetts
$12.3M +$75.7K +8,681 +0.7%
NIM
25
Needham Investment Management
New York
$9.92M +$349K +40,000 +4%
1
2 3 4 5

ECVT Hedge Fund Activity: Q4 2025 in Review

161 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Ecovyst (ECVT) for Q4 2025, worth a combined $1.14B — up 10% from $1.03B a quarter earlier.

Sellers outnumbered buyers: 25 funds closed out of ECVT and 20 opened new positions — a net loss of 5 holders — while 60 trimmed existing stakes and 47 added.

The largest buyer was Brightline Capital Management, opening a new position worth an estimated $17.9M. The largest seller was Boston Partners, exiting entirely with an estimated $28.1M sold.

  • 161 institutional investors held Ecovyst (ECVT) as of Q4 2025, down from 169 in Q3 2025.
  • Funds reported $1.14B of Ecovyst stock for Q4 2025, up 10% quarter-over-quarter.
  • 20 funds opened new Ecovyst positions in Q4 2025 and 25 closed out, a net change of -5 holders.
  • The largest Ecovyst buyer in Q4 2025 was Brightline Capital Management, an estimated $17.9M added.
  • The largest Ecovyst seller in Q4 2025 was Boston Partners, an estimated $28.1M sold.

Based on aggregated 13F filings for Q4 2025.