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Montauk Renewables
MNTK

94 hedge funds and large institutions have $24M invested in Montauk Renewables in 2026 Q1 according to their latest regulatory filings, with 22 funds opening new positions, 29 increasing their positions, 29 reducing their positions, and 9 closing their positions.

New
Increased
Maintained
Reduced
Closed

144% more first-time investments, than exits

New positions opened: 22 | Existing positions closed: 9

15% more funds holding

Funds holding: 82 → 94 (+12)

0.64% more ownership

Funds ownership: 13.98% → 14.62% (+0.64%)

0% more repeat investments, than reductions

Existing positions increased: 29 | Existing positions reduced: 29

28% less capital invested

Capital invested by funds: $33.3M → $24M (-$9.29M)

Holders
94
Holders Change
+12
Holders Change %
+14.63%
% of All Funds
1.16%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
22
Increased
29
Reduced
29
Closed
9
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Barclays
Barclays
United Kingdom
+$1.4M
2
Marshall Wace
Marshall Wace
United Kingdom
+$308K
3
Millennium Management
Millennium Management
New York
+$273K
4
Goldman Sachs
Goldman Sachs
New York
+$204K
5
JDLA
J. Derek Lewis & Associates
California
+$128K

Top Sellers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
-$334K
2
BlackRock
BlackRock
New York
-$159K
3
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$145K
4
Jane Street
Jane Street
New York
-$143K
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$112K
Name Holding Trade Value Shares
Change 		Change in
Stake
EGM
51
Engineers Gate Manager
New York
$21.4K +$7.62K +5,054 +37%
IIM
52
INTECH Investment Management
Florida
$20.4K -$20.7K -13,738 -44%
TRCT
53
Tower Research Capital (TRC)
New York
$19.8K +$17.1K +11,358 +193%
Neuberger Berman Group
54
Neuberger Berman Group
New York
$19.3K +$6.36K +4,219 +34%
TSS
55
Two Sigma Securities
New York
$18.9K -$31.4K -20,824 -56%
PFSRSONJ
56
Police & Firemen's Retirement System of New Jersey
New Jersey
$18.8K – – –
Citigroup
57
Citigroup
New York
$18.1K +$12.8K +8,518 +117%
Prudential Financial
58
Prudential Financial
New Jersey
$17K +$22.3K +14,810 New
BNP Paribas Financial Markets
59
BNP Paribas Financial Markets
France
$16.9K +$443 +294 +2%
XT
60
XTX Topco
Cayman Islands
$16.3K +$21.4K +14,173 New
VOYA Investment Management
61
VOYA Investment Management
Georgia
$15.7K – – –
TI
62
Tidal Investments
Wisconsin
$13.5K +$17.7K +11,738 New
Point72 Asset Management
63
Point72 Asset Management
Connecticut
$12.5K +$683 +453 +4%
NEWAS
64
N.E.W. Advisory Services
Wisconsin
$11.5K – – –
Jones Financial Companies
65
Jones Financial Companies
Missouri
$11.2K +$14K +9,259 New
Zurich Cantonal Bank
66
Zurich Cantonal Bank
Switzerland
$9.03K +$11.8K +7,852 New
AIP
67
Ameritas Investment Partners
Nebraska
$7.62K – – –
Legal & General Group
68
Legal & General Group
United Kingdom
$6.61K -$437 -290 -5%
Simplex Trading
69
Simplex Trading
Illinois
$5.65K +$7.41K +4,915 New
Osaic Holdings
70
Osaic Holdings
Arizona
$4.6K +$6.03K +4,000 New
California State Teachers Retirement System (CalSTRS)
71
California State Teachers Retirement System (CalSTRS)
California
$4.19K -$749 -497 -12%
New York State Common Retirement Fund
72
New York State Common Retirement Fund
New York
$3.87K – – –
NO
73
Ninety One
South Africa
$3.42K +$4.69K +3,110 New
Royal Bank of Canada
74
Royal Bank of Canada
Ontario, Canada
$3K +$1.52K +1,006 +50%
Carson Wealth (CWM LLC)
75
Carson Wealth (CWM LLC)
Nebraska
$2.62K +$1.73K +1,147 +102%
1 2
3
4 5

MNTK Hedge Fund Activity: Q1 2026 in Review

94 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Montauk Renewables (MNTK) for Q1 2026, worth a combined $24M — down 28% from $33.3M a quarter earlier.

Buyers outnumbered sellers: 22 funds opened new MNTK positions and 9 closed out — a net gain of 13 holders — while 29 added to existing stakes and 29 trimmed.

The largest buyer was Barclays, adding an estimated $1.4M. The largest seller was Citadel Advisors, exiting entirely with an estimated $334K sold.

  • 94 institutional investors held Montauk Renewables (MNTK) as of Q1 2026, up from 82 in Q4 2025.
  • Funds reported $24M of Montauk Renewables stock for Q1 2026, down 28% quarter-over-quarter.
  • 22 funds opened new Montauk Renewables positions in Q1 2026 and 9 closed out, a net change of +13 holders.
  • The largest Montauk Renewables buyer in Q1 2026 was Barclays, an estimated $1.4M added.
  • The largest Montauk Renewables seller in Q1 2026 was Citadel Advisors, an estimated $334K sold.

Based on aggregated 13F filings for Q1 2026.