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
2026
Q1 		$735 Sell
300
-400
-57% -$910 ﹤0.01% 8669
2025
Q4 		$1.29K Sell
700
-14,900
-96% -$30.1K ﹤0.01% 7965
2025
Q3 		$35K Buy
15,600
+9,800
+169% +$24.1K ﹤0.01% 6825
2025
Q2 		$16K Buy
+5,800
New +$14.8K ﹤0.01% 6978
2025
Q1 		– Sell
-10,300
Closed -$30K – 9723
2024
Q4 		$30K Sell
10,300
-6,700
-39% -$24.7K ﹤0.01% 6370
2024
Q3 		$69K Buy
17,000
+2,800
+20% +$10.2K ﹤0.01% 5589
2024
Q2 		$46K Buy
14,200
+5,900
+71% +$20.3K ﹤0.01% 6183
2024
Q1 		$30K Buy
8,300
+5,800
+232% +$21.9K ﹤0.01% 6764
2023
Q4 		$11K Buy
2,500
+1,200
+92% +$5.32K ﹤0.01% 7387
2023
Q3 		$6K Sell
1,300
-9,000
-87% -$43.8K ﹤0.01% 7577
2023
Q2 		$49K Buy
10,300
+6,500
+171% +$26.9K ﹤0.01% 5876
2023
Q1 		$16K Sell
3,800
-500
-12% -$2.98K ﹤0.01% 7151
2022
Q4 		$37K Sell
4,300
-7,100
-62% -$40.4K ﹤0.01% 6230
2022
Q3 		$38K Buy
11,400
+6,500
+133% +$22.7K ﹤0.01% 6801
2022
Q2 		$10K Buy
4,900
+1,100
+29% +$2.46K ﹤0.01% 8316
2022
Q1 		$8K Buy
+3,800
New +$6.9K ﹤0.01% 9105
2021
Q4 		– Sell
-3,400
Closed -$15K – 11466
2021
Q3 		$15K Buy
3,400
+600
+21% +$2.14K ﹤0.01% 8682
2021
Q2 		$12K Buy
2,800
+2,777
+12,074% +$11.4K ﹤0.01% 9002
2021
Q1 		$12K Sell
23
-59
-72% -$298 ﹤0.01% 7811
2020
Q4 		$36K Buy
+82
New +$200 ﹤0.01% 6508
2020
Q3 		– Sell
-16
Closed -$1K – 8543
2020
Q2 		$1K Buy
16
+2
+14% +$2 ﹤0.01% 7417
2020
Q1 		$1K Sell
14
-431
-97% -$568 ﹤0.01% 7414
2019
Q4 		$97K Buy
445
+75
+20% +$134 ﹤0.01% 4550
2019
Q3 		$91K Buy
370
+355
+2,367% +$1.69K ﹤0.01% 4425
2019
Q2 		$10K Buy
+15
New +$191 ﹤0.01% 6126
2019
Q1 		– Sell
-10
Closed -$17K – 7879
2018
Q4 		$17K Buy
10
+3
+43% +$74 ﹤0.01% 5475
2018
Q3 		$20K Buy
+7
New +$231 ﹤0.01% 5961

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.