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GSA Capital Partners’s Mammoth Energy Services TUSK Stock Holding History

GSA Capital Partners’s Portfolio TUSK Stock Details TUSK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$421K Buy
129,547
+115,638
+831% +$338K 0.03% 1113
2026
Q1 		$34K Buy
+13,909
New +$31.7K ﹤0.01% 1624
2025
Q2 		– Sell
-12,029
Closed -$25K – 2159
2025
Q1 		$25K Buy
+12,029
New +$32.1K ﹤0.01% 1578
2024
Q3 		– Sell
-24,478
Closed -$80K – 2020
2024
Q2 		$80K Buy
+24,478
New +$84K 0.01% 1544
2023
Q4 		– Sell
-88,948
Closed -$413K – 1937
2023
Q3 		$413K Buy
88,948
+52,097
+141% +$254K 0.04% 908
2023
Q2 		$178K Buy
36,851
+12,549
+52% +$52K 0.02% 1302
2023
Q1 		$103K Buy
+24,302
New +$145K 0.01% 1352
2020
Q2 		– Sell
-13,416
Closed -$10K – 1111
2020
Q1 		$10K Sell
13,416
-1,178
-8% -$1.55K ﹤0.01% 996
2019
Q4 		$32K Buy
+14,594
New +$26.2K ﹤0.01% 1378
2019
Q3 		– Sell
-34,246
Closed -$236K – 1719
2019
Q2 		$236K Sell
34,246
-2,354
-6% -$29.9K 0.03% 1149
2019
Q1 		$609K Sell
36,600
-5,500
-13% -$117K 0.06% 574
2018
Q4 		$757K Sell
42,100
-9,027
-18% -$222K 0.09% 343
2018
Q3 		$1.49M Buy
+51,127
New +$1.68M 0.08% 424
2018
Q1 		– Sell
-21,652
Closed -$425K – 1833
2017
Q4 		$425K Buy
+21,652
New +$394K 0.03% 1021
2017
Q3 		– Sell
-10,251
Closed -$191K – 1893
2017
Q2 		$191K Buy
+10,251
New +$191K 0.01% 1511

Other funds holding TUSK

WC
Wexford Capital West Palm Beach, Florida $782M AUM 62.56% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
PLC
Peapod Lane Capital Bedford Hills, New York $148M AUM 89.92% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
JHU
Johns Hopkins University Baltimore, Maryland $1.5B AUM 13.39% 1-Year Est. Return

GSA Capital Partners's TUSK Position: Q2 2026 in Review

GSA Capital Partners increased its Mammoth Energy Services (TUSK) stake by 831% in Q2 2026, buying an estimated $338K and bringing the position to 129,547 shares worth $421K. The position accounts for 0.03% of the portfolio, ranked #1113.

GSA Capital Partners first reported a position in TUSK in Q2 2017 and has held it in 15 quarters since. The position peaked at $1.49M in Q3 2018. 94 funds tracked by Wall St. Rank hold TUSK as of Q2 2026.

  • GSA Capital Partners held 129,547 shares of Mammoth Energy Services worth $421K as of Q2 2026.
  • GSA Capital Partners bought 115,638 Mammoth Energy Services shares in Q2 2026, an estimated $338K.
  • Mammoth Energy Services made up 0.03% of GSA Capital Partners's portfolio in Q2 2026, its #1113 holding.
  • GSA Capital Partners first reported a position in Mammoth Energy Services in Q2 2017 and has held it in 15 quarters since.
  • GSA Capital Partners's Mammoth Energy Services position peaked at $1.49M in Q3 2018.
  • 94 funds tracked by Wall St. Rank held Mammoth Energy Services as of Q2 2026.

Based on GSA Capital Partners's 13F filing for Q2 2026, filed 6 Aug 2026.