Vault-13

MAMMOTH ENERGY SVCS INC TUSK

COM · Common Stock · CUSIP 56155L108

81 institutional holders +23 vs Q3 2022
37,378,84837.4m shares reported held*
79.0% of all shares outstanding*
$323.2mreported value*
23 new 25 added 15 reduced 3 sold out net bought ≈ $3.2m (+370.1k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($21.4k this quarter). Holder counts are more reliable. Shares outstanding: 47.3m as of 2022-10-26, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $8.65. Options: 6 managers hold calls ($554.3k notional), 5 hold puts ($624.2k).

Trends to Q4 2022

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 58Q4 22: 8181Q3 22Q4 22
Numbers
QuarterHolders
Q3 202258
Q4 202281

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$200k$400k$600k$800kQ3 22 calls: $143.0kQ3 22 puts: $54.0kQ3 22P/C 0.38Q4 22 calls: $554.3kQ4 22 puts: $624.2kQ4 22P/C 1.13
Numbers
QuarterCallsPutsP/C
Q3 2022$143.0k$54.0k0.38
Q4 2022$554.3k$624.2k1.13

Biggest buyers

Monarch Partners Asset Management LLC New +195,964+196.0k
ACADIAN ASSET MANAGEMENT LLC Added +169,525+169.5k
ADAGE CAPITAL PARTNERS GP, L.L.C. Added +122,385+122.4k
Kanen Wealth Management LLC Added +88,404+88.4k
DIMENSIONAL FUND ADVISORS LP Added +82,041+82.0k
HRT FINANCIAL LP New +61,993+62.0k
CAXTON ASSOCIATES LP New +59,627+59.6k
O'SHAUGHNESSY ASSET MANAGEMENT, LLC New +47,776+47.8k
GROUP ONE TRADING LLC Added +47,665+47.7k
Quadrature Capital Ltd New +41,847+41.8k

Biggest sellers

MILLENNIUM MANAGEMENT LLC Reduced -558,582-558.6k
Informed Momentum Co LLC Reduced -145,276-145.3k
X-Square Capital, LLC Reduced -110,000-110.0k
Long Focus Capital Management, LLC Reduced -65,000-65.0k
Full Sail Capital, LLC Reduced -40,806-40.8k
Virtu Financial LLC Sold out -23,259-23.3k
Tower Research Capital LLC (TRC) Reduced -23,192-23.2k
NewEdge Advisors, LLC Reduced -22,769-22.8k
UBS Group AG Sold out -5,915-5.9k
LPL Financial LLC Reduced -4,608-4.6k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $317.5k36.7k shares
CITADEL ADVISORS LLC Added $96.9k11.2k shares
Belvedere Trading LLC New $92.6k10.7k shares
SIMPLEX TRADING, LLC Reduced $37.0k4.3k shares
GROUP ONE TRADING LLC Reduced $10.4k1.2k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

CITADEL ADVISORS LLC New $270.7k31.3k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $250.8k29.0k shares
Belvedere Trading LLC New $98.6k11.4k shares
SIMPLEX TRADING, LLC Added $4.0k500 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
WEXFORD CAPITAL LP 13G · exempt (held before listing) filed 2026-06-22 25.1% 12.1m≈ $39.2m 2026-06-22
DAVIDSON CHARLES E 13G · passive investor new · filed 2026-06-22 13.4% new 6.5m≈ $21.0m 2026-06-22

Insider purchases and sales in Q4 2022

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q1 21: 0 buyingQ1 21: 0 sellingQ2 21: 0 buyingQ2 21: 0 sellingQ2 21Q3 21: 0 buyingQ3 21: 0 sellingQ4 21: 1 buyingQ4 21: 0 sellingQ4 21Q1 22: 0 buyingQ1 22: 1 sellingQ2 22: 1 buyingQ2 22: 0 sellingQ2 22Q3 22: 0 buyingQ3 22: 0 sellingQ4 22: 0 buyingQ4 22: 1 sellingQ4 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20211$50.0k0——
Q1 20220—1$82.5k—
Q2 20221$456.1k0——
Q3 20220—0——
Q4 20220—1$141.4k—
DateInsiderTradeSharesPrice ValueTheir holding
2022-11-11 SMITH ARTHUR L Director Sold 20,000 $7.07 $141.4k20.0k shares -11%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q4 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 WEXFORD CAPITAL LP 39.98% of their portfolio WEST PALM BEACH, FL 22,485,40722.5m $194.4m $194.4m 39.98% Unchanged
2 VALUEWORKS LLC 10.73% of their portfolio NEW YORK, NY 3,511,6923.5m $30.4m $30.4m 10.73% Added +5.9k +5,902
3 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.06% of their portfolio Boston, MA 3,127,2683.1m $27.1m $27.1m 0.06% Added +122.4k +122,385
4 ROYCE & ASSOCIATES LP 0.13% of their portfolio New York, NY 1,381,2941.4m $11.9m $11.9m 0.13% Reduced -1.6k -1,622
5 Kanen Wealth Management LLC 4.93% of their portfolio COCONUT CREEK, FL 1,114,5761.1m $9.6m $9.6m 4.93% Added +88.4k +88,404
6 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 503,775503.8k $4.4m $4.4m 0.00% Added +33.1k +33,116
7 X-Square Capital, LLC 1.92% of their portfolio GUAYNABO, PR 390,092390.1k $3.4m $3.4m 1.92% Reduced -110.0k -110,000
8 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 343,906343.9k $3.0m $3.0m 0.00% Reduced -558.6k -558,582
9 EXENCIAL WEALTH ADVISORS, LLC 0.16% of their portfolio OKLAHOMA CITY, OK 330,360330.4k $2.9m $2.9m 0.16% Unchanged
10 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 323,185323.2k $2.8m $2.8m 0.00% Added +82.0k +82,041
11 ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio Boston, MA 277,508277.5k $2.4m $2.4m 0.01% Added +169.5k +169,525
12 TWO SIGMA ADVISERS, LP 0.01% of their portfolio NEW YORK, NY 268,100268.1k $2.3m $2.3m 0.01% Added +17.7k +17,700
13 Informed Momentum Co LLC 0.44% of their portfolio SOLANA BEACH, CA 244,508244.5k $2.1m $2.1m 0.44% Reduced -145.3k -145,276
14 BlackRock Inc. 0.00% of their portfolio New York, NY 243,944243.9k $2.1m $2.1m 0.00% Added +6.5k +6,481
15 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 203,672203.7k $1.8m $1.8m 0.00% Added +4.2k +4,200
16 Monarch Partners Asset Management LLC 0.50% of their portfolio BOSTON, MA 195,964196.0k $1.7m $1.7m 0.50% New
17 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 191,148191.1k $1.7m $1.7m 0.00% Reduced -2.9k -2,857
18 INTRINSIC EDGE CAPITAL MANAGEMENT LLC 0.17% of their portfolio CHICAGO, IL 177,556177.6k $1.5m $1.5m 0.17% Added +23.6k +23,638
19 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 165,373165.4k $1.4m $1.4m 0.00% Added +4.1k +4,059
20 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.04% of their portfolio HOUSTON, TX 164,600164.6k $1.4m $1.4m 0.04% Unchanged
21 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 162,728162.7k $1.4m $1.4m 0.00% Added +7.8k +7,829
22 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 158,923158.9k $1.4m $1.4m 0.00% Added +31.8k +31,806
23 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 107,072107.1k $926.2k $926.2k 0.00% Unchanged
24 GROUP ONE TRADING LLC 0.02% of their portfolio CHICAGO, IL 84,68784.7k $732.5k $732.5k 0.02% Added +47.7k +47,665
25 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 77,03277.0k $666.3k $666.3k 0.00% Added +18.5k +18,526
26 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 72,64972.6k $628.4k $628.4k 0.00% Added +4.1k +4,059
27 Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio VANCOUVER, A1 70,03070.0k $605.8k $605.8k 0.00% Added +12.0k +11,996
28 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 62,61462.6k $541.6k $541.6k 0.00% Added +9.0k +9,000
29 HRT FINANCIAL LP 0.01% of their portfolio NEW YORK, NY 61,99362.0k $536.0k $536.0k 0.01% New
30 CAXTON ASSOCIATES LP 0.04% of their portfolio NEW YORK, NY 59,62759.6k $515.8k $515.8k 0.04% New
31 Long Focus Capital Management, LLC 0.08% of their portfolio SAN JUAN, PR 57,68157.7k $498.9k $498.9k 0.08% Reduced -65.0k -65,000
32 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 50,00050.0k $432.5k $432.5k 0.00% First filing
33 O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.01% of their portfolio Stamford, CT 47,77647.8k $413.3k $413.3k 0.01% New
34 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 45,79245.8k $396.1k $396.1k 0.00% Reduced -4.1k -4,089
35 Boston Partners 0.00% of their portfolio BOSTON, MA 45,07345.1k $389.9k $389.9k 0.00% Unchanged
36 Quadrature Capital Ltd 0.01% of their portfolio LONDON, X0 41,84741.8k $361.1k $361.1k 0.01% New
37 Jump Financial, LLC 0.02% of their portfolio Chicago, IL 41,40041.4k $358.1k $358.1k 0.02% Added +25.0k +25,000
38 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 35,38135.4k $306.0k $306.0k 0.00% Reduced -3.6k -3,593
39 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 34,98635.0k $302.6k $302.6k 0.00% Added +6.9k +6,852
40 SIMPLEX TRADING, LLC 0.01% of their portfolio CHICAGO, IL 34,97835.0k $302.0k $302.0k 0.01% Added +31.4k +31,362
41 683 Capital Management, LLC 0.03% of their portfolio NEW YORK, NY 32,07032.1k $277.4k $277.4k 0.03% New
42 Full Sail Capital, LLC 0.02% of their portfolio OKLAHOMA CITY, OK 27,19127.2k $235.2k $235.2k 0.02% Reduced -40.8k -40,806
43 RITHOLTZ WEALTH MANAGEMENT 0.01% of their portfolio NEW YORK, NY 25,71325.7k $222.4k $222.4k 0.01% New
44 Cubist Systematic Strategies, LLC 0.00% of their portfolio STAMFORD, CT 24,95525.0k $215.9k $215.9k 0.00% New
45 NJ State Employees Deferred Compensation Plan 0.03% of their portfolio TRENTON, NJ 24,00024.0k $207.6k $207.6k 0.03% Unchanged
46 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 23,33023.3k $201.8k $201.8k 0.00% Added +16.8k +16,769
47 Hillsdale Investment Management Inc. 0.01% of their portfolio Toronto, A6 18,60018.6k $160.9k $160.9k 0.01% New
48 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 18,00018.0k $156.0k $156.0k 0.00% Unchanged
49 ALGERT GLOBAL LLC 0.01% of their portfolio SAN FRANCISCO, CA 17,83017.8k $154.2k $154.2k 0.01% Reduced -3.0k -2,950
50 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 17,29717.3k $149.6k $149.6k 0.00% New
51 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 15,52115.5k $134.3k $134.3k 0.00% New
52 Man Group plc 0.00% of their portfolio LONDON, X0 15,36515.4k $132.9k $132.9k 0.00% New
53 HSBC HOLDINGS PLC 0.00% of their portfolio LONDON, X0 13,47113.5k $115.0k $115.0k 0.00% Unchanged
54 BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio NEW YORK, NY 13,27013.3k $114.8k $114.8k 0.00% New
55 LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio LOS ANGELES, CA 13,26113.3k $114.7k $114.7k 0.00% New
56 WOLVERINE TRADING, LLC 0.00% of their portfolio CHICAGO, IL 12,90512.9k $112.0k $112.0k 0.00% New
57 Archer Investment Corp 0.04% of their portfolio Carmel, IN 11,00011.0k $95.2k $95.2k 0.04% Added +5.0k +5,000
58 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 10,73910.7k $92.9k $92.9k 0.00% Unchanged
59 MAD RIVER INVESTORS 0.05% of their portfolio BOSTON, MA 10,70010.7k $93.0k $93.0k 0.05% Reduced -550 -550
60 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 10,10710.1k $87.4k $87.4k 0.00% Reduced -4.6k -4,608
61 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 9,1209.1k $78.6k $78.6k 0.00% Added +7.0k +7,005
62 FMR LLC 0.00% of their portfolio BOSTON, MA 6,2266.2k $53.9k $53.9k 0.00% Unchanged
63 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 2,4772.5k $21.4k $21.4k 0.00% New
64 Point72 Asset Management, L.P. 0.00% of their portfolio STAMFORD, CT 2,4752.5k $21.4k $21.4k 0.00% New
65 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 2,2312.2k $16.7k $16.7k 0.00% Reduced -22.8k -22,769
66 Belvedere Trading LLC 0.01% of their portfolio CHICAGO, IL 1,8231.8k $15.8k $15.8k 0.01% New
67 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 1,4581.5k $13.0k $13.0k 0.00% Reduced -23.2k -23,192
68 Federation des caisses Desjardins du Quebec 0.00% of their portfolio LEVIS, A8 1,4001.4k $12.1k $12.1k 0.00% New
69 Advisory Services Network, LLC 0.00% of their portfolio ATLANTA, GA 500500 $4.3k $4.3k 0.00% New
70 HARBOUR INVESTMENTS, INC. 0.00% of their portfolio MADISON, WI 490490 $4.2k $4.2k 0.00% New
71 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 383383 $3.3k $3.3k 0.00% Unchanged
72 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 361361 $3.1k $3.1k 0.00% Added +235 +235
73 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 200200 $7.0k $7.0k 0.00% Unchanged
74 SIGNATUREFD, LLC 0.00% of their portfolio ATLANTA, GA 180180 $1.6k $1.6k 0.00% New
75 Coppell Advisory Solutions LLC 0.00% of their portfolio COPPELL, TX 166166 $1.4k $1.4k 0.00% First filing
76 Coppell Advisory Solutions Corp. 0.00% of their portfolio COPPELL, TX 166166 $1.4k $1.4k 0.00% First filing
77 NewSquare Capital LLC 0.00% of their portfolio NEWTOWN SQUARE, PA 100100 $865 $865 0.00% Not comparable
78 Capital Advisors, Ltd. LLC 0.00% of their portfolio SHAKER HEIGHTS, OH 1818 $0 $0 0.00% New
79 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 1616 $0 $0 0.00% Unchanged
80 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 1111 $95 $95 0.00% Reduced -792 -792
81 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged