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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
SCM
76
Sterling Capital Management
North Carolina
$2.12K -$1.96K -1,299 -41%
TFIPS
77
Towarzystwo Funduszy Inwestycyjnych PZU SA
$1.38K – – –
Fidelity Investments
78
Fidelity Investments
Massachusetts
$932 -$12.6K -8,348 -91%
Optiver Holding
79
Optiver Holding
Netherlands
$731 -$675 -448 -41%
GI
80
GAMMA Investing
California
$390 -$8.54K -5,663 -94%
IA
81
IFP Advisors
Florida
$216 +$283 +188 New
EP
82
Essential Partners
California
$215 +$249 +165 +750%
PNC Financial Services Group
83
PNC Financial Services Group
Pennsylvania
$153 -$234 -155 -54%
SS
84
SBI Securities
Japan
$133 +$154 +102 +729%
FFA
85
Farther Finance Advisors
California
$93 +$33 +22 +37%
EWA
86
EverSource Wealth Advisors
Alabama
$79 -$81 -54 -44%
TWD
87
True Wealth Design
Ohio
$66 +$68 +45 +375%
RIL
88
Rothschild Investment LLC
Illinois
$29 -$92 -61 -71%
MCM
89
MAI Capital Management
Ohio
$25 +$32 +21 New
SS
90
Sunbelt Securities
Texas
$15 +$20 +13 New
AAP
91
Arax Advisory Partners
Colorado
$7 +$8 +5 New
AF
92
Allworth Financial
California
$6 -$15 -10 -67%
CIAM
93
Caitong International Asset Management
Hong Kong
$2 +$3 +2 New
Citadel Advisors
94
Citadel Advisors
Florida
– -$334K -200,021 Closed
ACM
95
Andina Capital Management
Utah
– -$69.4K -41,572 Closed
RS
96
R Squared
Hong Kong
– -$48.3K -28,945 Closed
HF
97
HRT Financial
New York
– -$44K -26,353 Closed
Two Sigma Investments
98
Two Sigma Investments
New York
– -$38.8K -23,215 Closed
Two Sigma Advisers
99
Two Sigma Advisers
New York
– -$28.1K -16,800 Closed
ProShare Advisors
100
ProShare Advisors
Maryland
– -$20.5K -12,291 Closed
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.