13FBOX
MAMMOTH ENERGY SVCS INC COM · 13F Institutional Holdings
Options Calculator Rankings
M

MAMMOTH ENERGY SVCS INC COM

TUSK
Institutions
93
Combined AUM (Q2 2026)
$85.0M
Combined Shares (Q2 2026)
26.2M
Overall Trend
Decrease
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+4.1M
59 · 27 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-13.0M
48 · 24 Exit · ≈
⚖️ Net
-8.9M
Net Sell
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$85.0M
Institutions
93
New Buys
27
Adds
32
Reduces
24
Exits
24
Unchanged
10
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
WEXFORD CAPITAL LP
5.02%7.83%#1$39.2M12.1M$54.1M22.1M-10.0M-45.30%Reduce
ADAGE CAPITAL PARTNERS GP, L.L.C.
0.02%0.02%#8$14.9M4.6M$11.2M4.6M00.00%Unchanged
VANGUARD CAPITAL MANAGEMENT LLC
<0.01%<0.01%#48$3.4M1.1M$2.0M819,120+240,483+29.36%Add
Peapod Lane Capital LLC
1.77%1.24%#2$2.6M807,804$1.5M599,805+207,999+34.68%Add
DIMENSIONAL FUND ADVISORS LP
<0.01%<0.01%#27$2.2M691,667$1.7M686,199+5,468+0.80%Add
CITADEL ADVISORS LLC
<0.01%<0.01%#33$1.9M593,263$837,819341,967+251,296+73.49%Add
JANE STREET GROUP, LLC
<0.01%<0.01%#43$1.6M506,662$85,14834,754+471,908+1,357.85%Add
BlackRock, Inc.
<0.01%<0.01%#65$1.3M407,976$3.6M1.5M-1.0M-71.96%Reduce
MARSHALL WACE, LLP
<0.01%#22$1.3M395,583$00+395,583New Buy
Johns Hopkins University
0.08%#4$1.3M387,359$00+387,359New Buy
BRIDGEWAY CAPITAL MANAGEMENT, LLC
0.02%0.02%#9$1.1M332,313$814,167332,31300.00%Unchanged
Russell Investments Group, Ltd.
<0.01%<0.01%#23$1.1M329,821$166,67368,030+261,791+384.82%Add
GEODE CAPITAL MANAGEMENT, LLC
<0.01%<0.01%#49$995,730306,028$1.5M610,926-304,898-49.91%Reduce
RENAISSANCE TECHNOLOGIES LLC
<0.01%<0.01%#19$949,910292,280$568,331231,972+60,308+26.00%Add
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
<0.01%#26$942,812290,096$00+290,096New Buy
Empowered Funds, LLC
<0.01%<0.01%#13$784,267241,313$591,217241,31300.00%Unchanged
AQR CAPITAL MANAGEMENT LLC
<0.01%<0.01%#35$577,928177,824$163,49166,731+111,093+166.48%Add
VANGUARD FIDUCIARY TRUST CO
<0.01%<0.01%#46$525,821161,791$416,821170,131-8,340-4.90%Reduce
Round Rock Advisors LLC
0.06%#5$496,733152,841$00+152,841New Buy
MORGAN STANLEY
<0.01%<0.01%#62$434,070133,560$332,737145,300-11,740-8.08%Reduce
Centiva Capital, LP
<0.01%<0.01%#14$425,328130,870$272,215111,108+19,762+17.79%Add
GSA CAPITAL PARTNERS LLP
0.03%<0.01%#7$421,028129,547$34,00013,909+115,638+831.39%Add
MILLENNIUM MANAGEMENT LLC
<0.01%#44$403,604124,186$00+124,186New Buy
ACADIAN ASSET MANAGEMENT LLC
<0.01%<0.01%#25$396,662122,050$498,000204,105-82,055-40.20%Reduce
Marquette Asset Management, LLC
0.05%#6$356,935109,826$00+109,826New Buy
STIFEL FINANCIAL CORP
<0.01%<0.01%#31$343,109105,572$258,651105,57200.00%Unchanged
STATE STREET CORP
<0.01%<0.01%#75$331,058101,864$1.0M421,922-320,058-75.86%Reduce
BANK OF AMERICA CORP /DE/
<0.01%<0.01%#64$315,40097,046$62,69325,589+71,457+279.25%Add
BNP PARIBAS FINANCIAL MARKETS
<0.01%<0.01%#41$302,13392,964$41,03016,747+76,217+455.11%Add
FNY Investment Advisers, LLC
0.09%#3$248,56376,481$00+76,481New Buy
Point72 Asset Management, L.P.
<0.01%#32$234,29672,091$00+72,091New Buy
Boston Partners
<0.01%<0.01%#36$224,04068,935$378,250154,388-85,453-55.35%Reduce
Bank of New York Mellon Corp
<0.01%<0.01%#54$201,52362,007$324,720132,539-70,532-53.22%Reduce
Qube Research & Technologies Ltd
<0.01%#39$191,29258,859$00+58,859New Buy
TWO SIGMA INVESTMENTS, LP
<0.01%#42$190,24958,538$00+58,538New Buy
NORTHERN TRUST CORP
<0.01%<0.01%#63$185,83557,180$458,464187,128-129,948-69.44%Reduce
GOLDMAN SACHS GROUP INC
<0.01%<0.01%#68$178,51654,928$547,549223,489-168,561-75.42%Reduce
SUSQUEHANNA INTERNATIONAL GROUP, LLP
<0.01%<0.01%#70$162,24049,920$88,93336,299+13,621+37.52%Add
XTX Topco Ltd
<0.01%#16$160,09849,261$00+49,261New Buy
Walleye Capital LLC
<0.01%#24$159,70849,141$00+49,141New Buy
WELLINGTON MANAGEMENT GROUP LLP
<0.01%<0.01%#60$154,33047,486$167,61768,415-20,929-30.59%Reduce
ALGERT GLOBAL LLC
<0.01%#17$149,49045,997$00+45,997New Buy
Quadrature Capital Ltd
<0.01%#20$143,04944,015$00+44,015New Buy
HSBC HOLDINGS PLC
<0.01%#51$108,02833,706$00+33,706New Buy
HRT FINANCIAL LP
<0.01%#38$99,55430,632$00+30,632New Buy
UBS Group AG
<0.01%<0.01%#71$95,93329,518$18,7857,667+21,851+285.00%Add
Connor, Clark & Lunn Investment Management Ltd.
<0.01%<0.01%#40$92,88828,581$35,55014,510+14,071+96.97%Add
CAPTRUST FINANCIAL ADVISORS
<0.01%#45$87,09726,799$00+26,799New Buy
BARCLAYS PLC
<0.01%<0.01%#67$83,04825,553$13,6735,581+19,972+357.86%Add
IEQ CAPITAL, LLC
<0.01%#28$79,27424,392$00+24,392New Buy

🧭 Institutional Sector Flow Heatmap

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