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103 hedge funds and large institutions have $51.9M invested in Arq in 2025 Q4 according to their latest regulatory filings, with 28 funds opening new positions, 32 increasing their positions, 26 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

760% more call options, than puts

Call options by funds: $129K | Put options by funds: $15K

56% more first-time investments, than exits

New positions opened: 28 | Existing positions closed: 18

23% more repeat investments, than reductions

Existing positions increased: 32 | Existing positions reduced: 26

10% more funds holding

Funds holding: 94103 (+9)

4.47% less ownership

Funds ownership: 41.64%37.17% (-4.5%)

59% less capital invested

Capital invested by funds: $127M → $51.9M (-$75.4M)

100% less funds holding in top 10

Funds holding in top 10: 30 (-3)

Holders
103
Holders Change
+9
Holders Change %
+9.57%
% of All Funds
1.25%
Holding in Top 10
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-100%
% of All Funds
New
28
Increased
32
Reduced
26
Closed
18
Calls
$129K
Puts
$15K
Net Calls
+$114K
Net Calls Change
-$2.2M
Name Holding Trade Value Shares
Change
Change in
Stake
XT
26
XTX Topco
Cayman Islands
$251K +$375K +76,843 New
PCM
27
Perritt Capital Management
Illinois
$245K
SL
28
Sentinus LLC
Illinois
$245K +$366K +75,000 New
BCM
29
Bridgeway Capital Management
Texas
$245K +$48.9K +10,000 +15%
Jane Street
30
Jane Street
New York
$243K -$159K -32,580 -31%
Bank of New York Mellon
31
Bank of New York Mellon
New York
$239K -$410K -83,912 -53%
UBS Group
32
UBS Group
Switzerland
$222K -$485K -99,286 -59%
Citadel Advisors
33
Citadel Advisors
Florida
$207K -$681K -139,291 -69%
Point72 Asset Management
34
Point72 Asset Management
Connecticut
$200K +$298K +61,032 New
Susquehanna International Group
35
Susquehanna International Group
Pennsylvania
$189K +$90K +18,431 +47%
BNP Paribas Financial Markets
36
BNP Paribas Financial Markets
France
$189K +$19.7K +4,024 +7%
Ameriprise
37
Ameriprise
Minnesota
$182K +$272K +55,654 New
GF
38
Gabelli Funds
New York
$170K +$9.77K +2,000 +4%
D.E. Shaw & Co
39
D.E. Shaw & Co
New York
$164K +$245K +50,166 New
Barclays
40
Barclays
United Kingdom
$163K +$26K +5,319 +12%
Wells Fargo
41
Wells Fargo
California
$147K +$46K +9,425 +27%
1CM
42
1492 Capital Management
Wisconsin
$145K -$3M -614,704 -93%
Ohio Public Employees Retirement System (OPERS)
43
Ohio Public Employees Retirement System (OPERS)
Ohio
$138K +$207K +42,326 New
JP Morgan Chase
44
JP Morgan Chase
New York
$137K -$274K -56,179 -57%
RhumbLine Advisers
45
RhumbLine Advisers
Massachusetts
$135K -$15.1K -3,096 -7%
N
46
Nuveen
North Carolina
$109K
JF
47
Jump Financial
Illinois
$108K +$162K +33,129 New
Franklin Resources
48
Franklin Resources
California
$106K -$2.58M -528,508 -94%
Invesco
49
Invesco
Georgia
$94K +$48K +9,832 +52%
Los Angeles Capital Management
50
Los Angeles Capital Management
California
$75.7K +$55.3K +11,325 New

ARQ Hedge Fund Activity: Q4 2025 in Review

103 of the 8,228 institutional investors tracked by Wall St. Rank reported a position in Arq (ARQ) for Q4 2025, worth a combined $51.9M — down 59% from $127M a quarter earlier.

Buyers outnumbered sellers: 28 funds opened new ARQ positions and 18 closed out — a net gain of 10 holders — while 32 added to existing stakes and 26 trimmed.

The largest buyer was Marshall Wace, opening a new position worth an estimated $2.17M. The largest seller was Wellington Management Group, exiting entirely with an estimated $4.91M sold.

  • 103 institutional investors held Arq (ARQ) as of Q4 2025, up from 94 in Q3 2025.
  • Funds reported $51.9M of Arq stock for Q4 2025, down 59% quarter-over-quarter.
  • 28 funds opened new Arq positions in Q4 2025 and 18 closed out, a net change of +10 holders.
  • The largest Arq buyer in Q4 2025 was Marshall Wace, an estimated $2.17M added.
  • The largest Arq seller in Q4 2025 was Wellington Management Group, an estimated $4.91M sold.

Based on aggregated 13F filings for Q4 2025.