Simplex Trading
TUSK icon

Simplex Trading’s Mammoth Energy Services TUSK Stock Holding History

Simplex Trading’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
-1,400
Closed -$3K – 10123
2025
Q3 		$3K Buy
+1,400
New +$3.45K ﹤0.01% 8570
2025
Q2 		– Sell
-700
Closed -$1K – 9771
2025
Q1 		$1K Hold
700
– – ﹤0.01% 8324
2024
Q4 		$2K Sell
700
-300
-30% -$1.1K ﹤0.01% 8094
2024
Q3 		$4K Buy
+1,000
New +$3.66K ﹤0.01% 7779
2024
Q1 		– Sell
-400
Closed -$1K – 9927
2023
Q4 		$1K Buy
+400
New +$1.77K ﹤0.01% 8596
2023
Q3 		– Sell
-400
Closed -$1K – 9866
2023
Q2 		$1K Sell
400
-2,600
-87% -$10.8K ﹤0.01% 8739
2023
Q1 		$12K Buy
3,000
+2,500
+500% +$14.9K ﹤0.01% 7407
2022
Q4 		$4K Buy
+500
New +$2.85K ﹤0.01% 8267
2022
Q1 		– Sell
-8,400
Closed -$15K – 11425
2021
Q4 		$15K Sell
8,400
-3,900
-32% -$10.2K ﹤0.01% 8707
2021
Q3 		$55K Hold
12,300
– – ﹤0.01% 7414
2021
Q2 		$56K Buy
12,300
+12,152
+8,211% +$50.1K ﹤0.01% 7515
2021
Q1 		$78K Buy
148
+22
+17% +$111 ﹤0.01% 6089
2020
Q4 		$56K Buy
+126
New +$307 ﹤0.01% 6058
2019
Q4 		– Sell
-60
Closed -$14K – 8000
2019
Q3 		$14K Buy
60
+27
+82% +$128 ﹤0.01% 6070
2019
Q2 		$22K Buy
33
+31
+1,550% +$394 ﹤0.01% 5542
2019
Q1 		$3K Buy
2
+1
+100% +$21 ﹤0.01% 6704
2018
Q4 		$1K Sell
1
-11
-92% -$270 ﹤0.01% 6797
2018
Q3 		$34K Buy
+12
New +$395 ﹤0.01% 5530

Other funds holding TUSK

WC
Wexford Capital West Palm Beach, Florida $690M AUM 57.92% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
PLC
Peapod Lane Capital Bedford Hills, New York $122M AUM 67.29% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
BCM
Bridgeway Capital Management Houston, Texas $4.97B AUM 44.96% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Simplex Trading's TUSK Position: Q1 2026 in Review

Simplex Trading opened a new position in Mammoth Energy Services (TUSK) in Q1 2026: 5,538 shares worth $13.6K. The stake represents ﹤0.01% of the portfolio and ranks #7080 among its holdings. This is a return to the name: Simplex Trading previously reported a position in TUSK as recently as Q2 2025.

Simplex Trading first reported a position in TUSK in Q3 2018 and has held it in 20 quarters since. The position peaked at $302K in Q4 2022. 90 funds tracked by Wall St. Rank hold TUSK as of Q1 2026.

  • Simplex Trading held 5,538 shares of Mammoth Energy Services worth $13.6K as of Q1 2026.
  • Mammoth Energy Services was a new Simplex Trading position in Q1 2026.
  • Mammoth Energy Services made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #7080 holding.
  • Simplex Trading first reported a position in Mammoth Energy Services in Q3 2018 and has held it in 20 quarters since.
  • Simplex Trading's Mammoth Energy Services position peaked at $302K in Q4 2022.
  • 90 funds tracked by Wall St. Rank held Mammoth Energy Services as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.