XT
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XTX Topco’s Mammoth Energy Services TUSK Stock Holding History

XTX Topco’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 		$160K Buy
+49,261
New +$144K ﹤0.01% 3359
2026
Q1 		– Sell
-45,235
Closed -$83.7K – 4410
2025
Q4 		$83.7K Buy
45,235
+20,153
+80% +$40.7K ﹤0.01% 2683
2025
Q3 		$57.4K Sell
25,082
-11,580
-32% -$28.5K ﹤0.01% 2147
2025
Q2 		$103K Buy
+36,662
New +$93.8K ﹤0.01% 1880
2024
Q4 		– Sell
-12,964
Closed -$53K – 2954
2024
Q3 		$53K Buy
+12,964
New +$47.4K ﹤0.01% 1687
2023
Q2 		– Sell
-15,285
Closed -$64.5K – 1858
2023
Q1 		$64.5K Buy
+15,285
New +$91K 0.01% 1143

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

XTX Topco's TUSK Position: Q2 2026 in Review

XTX Topco opened a new position in Mammoth Energy Services (TUSK) in Q2 2026: 49,261 shares worth $160K. The stake represents ﹤0.01% of the portfolio and ranks #3359 among its holdings. This is a return to the name: XTX Topco previously reported a position in TUSK as recently as Q4 2025.

XTX Topco first reported a position in TUSK in Q1 2023 and has held it in 6 quarters since. 93 funds tracked by Wall St. Rank hold TUSK as of Q2 2026.

  • XTX Topco held 49,261 shares of Mammoth Energy Services worth $160K as of Q2 2026.
  • Mammoth Energy Services was a new XTX Topco position in Q2 2026.
  • Mammoth Energy Services made up ﹤0.01% of XTX Topco's portfolio in Q2 2026, its #3359 holding.
  • XTX Topco first reported a position in Mammoth Energy Services in Q1 2023 and has held it in 6 quarters since.
  • 93 funds tracked by Wall St. Rank held Mammoth Energy Services as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.