CastleKnight Management’s Mammoth Energy Services TUSK Stock Holding History

CastleKnight Management’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
2025 Q4	–	Sell	-167,433	Closed	-$383K	–	483
2025 Q3	$383K	Hold	167,433	–	–	0.01%	407
2025 Q2	$469K	Hold	167,433	–	–	0.01%	357
2025 Q1	$342K	Hold	167,433	–	–	0.01%	312
2024 Q4	$502K	Hold	167,433	–	–	0.01%	308
2024 Q3	$685K	Hold	167,433	–	–	0.03%	256
2024 Q2	$549K	Hold	167,433	–	–	0.03%	274
2024 Q1	$609K	Hold	167,433	–	–	0.04%	240
2023 Q4	$747K	Sell	167,433 -20,000	-11%	-$88.7K	0.04%	198
2023 Q3	$870K	Buy	+187,433	New	+$912K	0.06%	180

Other funds holding TUSK

Wexford Capital West Palm Beach, Florida $690M AUM 57.92% 1-Year Est. Return

Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

BCM

Bridgeway Capital Management Houston, Texas $4.97B AUM 44.96% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Russell Investments Group London, United Kingdom $93.1B AUM 28.26% 1-Year Est. Return

CastleKnight Management's TUSK Position: Q4 2025 in Review

CastleKnight Management sold out of Mammoth Energy Services (TUSK) in Q4 2025, closing a stake of 167,433 shares — an estimated $383K sold.

CastleKnight Management first reported a position in TUSK in Q3 2023 and held it in 9 quarters. The position peaked at $870K in Q3 2023. 72 funds tracked by Wall St. Rank hold TUSK as of Q4 2025.

CastleKnight Management reported no remaining Mammoth Energy Services position as of Q4 2025 after selling out during the quarter.
CastleKnight Management sold 167,433 Mammoth Energy Services shares in Q4 2025, an estimated $383K.
CastleKnight Management first reported a position in Mammoth Energy Services in Q3 2023 and held it in 9 quarters.
CastleKnight Management's Mammoth Energy Services position peaked at $870K in Q3 2023.
72 funds tracked by Wall St. Rank held Mammoth Energy Services as of Q4 2025.

Based on CastleKnight Management's 13F filing for Q4 2025, filed 17 Feb 2026.