MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK)

Historical Holders from Q4 2016 to Q4 2025

Type / Class
Equity / Common Stock, $0.01 par value
Symbol
TUSK on Nasdaq
Shares outstanding
48,165,948
Price per share
$2.00
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
36,061,179
Total reported value
$82,580,791
% of total 13F portfolios
0%
Share change
-366,802
Value change
-$870,796
Number of holders
76
Price from insider filings
$2.00
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VALUEWORKS LLC 5% $6,689,287 2,389,031 VALUEWORKS LLC 30 Jun 2025
As of 30 Sep 2025, MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK) has 76 institutional shareholders filing 13F forms. They hold 36,061,179 shares. of 48,165,948 outstanding shares (75%) .

Top 25 institutional shareholders own 74% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
WEXFORD CAPITAL LP 46% 22,096,068 0% 15% $50,599,990
ADAGE CAPITAL PARTNERS GP, L.L.C. 9.5% 4,575,000 0% 0.02% $10,476,750
VALUEWORKS LLC 4.2% 2,038,205 -15% 1.4% $4,667,489
BlackRock, Inc. 3% 1,452,463 -1.1% 0% $3,326,140
VANGUARD GROUP INC 2% 945,630 -1.2% 0% $2,165,492
DIMENSIONAL FUND ADVISORS LP 1.9% 936,414 -5.8% 0% $2,144,586
GEODE CAPITAL MANAGEMENT, LLC 1.2% 579,105 -0.27% 0% $1,326,299
STATE STREET CORP 0.84% 406,916 -0.45% 0% $931,838
BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.81% 389,964 +11% 0.02% $893,018
CITADEL ADVISORS LLC 0.56% 268,315 +83% 0% $614,442
Empowered Funds, LLC 0.41% 198,964 +14% 0% $455,628
NORTHERN TRUST CORP 0.4% 192,469 -0.71% 0% $440,755
JPMORGAN CHASE & CO 0.38% 182,781 -1.6% 0% $418,569
CastleKnight Management LP 0.35% 167,433 0% 0.02% $383,422
MORGAN STANLEY 0.3% 145,300 -22% 0% $332,737
RENAISSANCE TECHNOLOGIES LLC 0.28% 133,972 +1.4% 0% $306,796
Bank of New York Mellon Corp 0.28% 133,755 +1.2% 0% $306,299
STIFEL FINANCIAL CORP 0.22% 105,869 0% 0% $242,440
ROYAL BANK OF CANADA 0.17% 83,696 -4% 0% $192,000
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.15% 72,878 -41% 0% $166,891
DEUTSCHE BANK AG\ 0.15% 72,183 0% $165,299
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.15% 70,674 0% 0% $161,843
BARCLAYS PLC 0.12% 59,269 -11% 0% $135,727
WELLINGTON MANAGEMENT GROUP LLP 0.12% 56,398 -51% 0% $129,151
GOLDMAN SACHS GROUP INC 0.11% 52,081 -2.8% 0% $119,265

Institutional Holders of MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q4 4 $8 -$10,287 $2.00 1
2025 Q3 36,061,179 $82,580,791 -$870,796 $2.29 76
2025 Q2 36,401,771 $101,932,908 -$2,372,904 $2.80 65
2025 Q1 37,314,723 $76,123,523 -$545,494 $2.04 65
2024 Q4 37,487,610 $112,461,499 -$427,839 $3.00 64
2024 Q3 37,132,133 $151,869,755 -$5,363,210 $4.09 64
2024 Q2 38,733,905 $127,045,189 -$926,593 $3.28 66
2024 Q1 38,989,636 $141,899,528 -$1,226,215 $3.64 66
2023 Q4 1,700,758 $7,585,380 +$45,438 $4.46 2
2023 Q3 39,576,263 $183,640,582 +$4,120,235 $4.64 74
2023 Q2 38,632,370 $186,593,301 +$2,121,250 $4.83 71
2023 Q1 38,362,997 $161,890,696 +$2,574,929 $4.22 76
2022 Q4 37,379,689 $323,237,068 +$3,927,264 $8.65 76
2022 Q3 36,968,448 $126,060,154 +$6,579,634 $3.41 53
2022 Q2 12,646,544 $27,819,093 +$5,672,278 $2.20 47
2022 Q1 10,077,362 $21,461,343 +$4,523,307 $2.13 45
2021 Q4 7,982,553 $14,529,122 +$321,781 $1.82 41
2021 Q3 7,591,173 $22,094,189 +$1,066,497 $2.91 44
2021 Q2 29,197,643 $134,016,916 +$1,631,502 $4.59 50
2021 Q1 28,821,230 $153,326,902 +$172,133 $5.32 51
2020 Q4 28,847,973 $128,374,522 +$2,187,025 $4.45 43
2020 Q3 1,803 $4,000 -$645,767 $2.25 2
2020 Q2 29,547,451 $34,866,522 -$839,938 $1.18 44
2020 Q1 30,641,282 $22,938,665 -$2,971,021 $0.75 53
2019 Q4 32,417,235 $71,315,662 -$5,912,865 $2.20 69
2019 Q3 34,230,204 $84,901,044 -$7,585,209 $2.48 82
2019 Q2 36,055,852 $248,069,311 -$30,676,484 $6.88 94
2019 Q1 36,840,008 $613,398,400 +$9,322,392 $16.65 132
2018 Q4 36,386,718 $654,681,091 +$20,322,635 $17.98 124
2018 Q3 34,826,345 $1,014,840,214 -$49,775,165 $29.10 131
2018 Q2 36,756,574 $1,234,729,322 +$111,323,945 $33.96 143
2018 Q1 32,881,908 $1,054,205,610 +$39,368,124 $32.06 102
2017 Q4 31,737,998 $623,041,658 -$22,287,718 $19.63 62
2017 Q3 32,760,972 $552,346,269 -$2,102,623 $16.86 58
2017 Q2 32,689,320 $608,024,810 +$135,060,246 $18.60 64
2017 Q1 28,173,489 $606,010,527 +$7,955,378 $21.51 73
2016 Q4 28,267,810 $429,642,932 +$427,460,456 $15.20 64