Dimensional Fund Advisors
TUSK icon

Dimensional Fund Advisors’s Mammoth Energy Services TUSK Stock Holding History

Dimensional Fund Advisors’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 		$1.68M Sell
686,199
-13,479
-2% -$30.7K ﹤0.01% 2742
2025
Q4 		$1.29M Sell
699,678
-236,736
-25% -$478K ﹤0.01% 2823
2025
Q3 		$2.14M Sell
936,414
-57,500
-6% -$142K ﹤0.01% 2751
2025
Q2 		$2.78M Sell
993,914
-7,290
-0.7% -$18.7K ﹤0.01% 2672
2025
Q1 		$2.04M Buy
1,001,204
+9,981
+1% +$26.6K ﹤0.01% 2723
2024
Q4 		$2.97M Buy
991,223
+98,295
+11% +$362K ﹤0.01% 2688
2024
Q3 		$3.65M Buy
892,928
+86,648
+11% +$317K ﹤0.01% 2614
2024
Q2 		$2.64M Buy
806,280
+99,093
+14% +$340K ﹤0.01% 2687
2024
Q1 		$2.57M Buy
707,187
+62,201
+10% +$234K ﹤0.01% 2735
2023
Q4 		$2.88M Buy
644,986
+154,278
+31% +$684K ﹤0.01% 2705
2023
Q3 		$2.28M Buy
490,708
+174,726
+55% +$850K ﹤0.01% 2737
2023
Q2 		$1.53M Buy
315,982
+4,396
+1% +$18.2K ﹤0.01% 2846
2023
Q1 		$1.31M Sell
311,586
-11,599
-4% -$69.1K ﹤0.01% 2843
2022
Q4 		$2.79K Buy
323,185
+82,041
+34% +$467K ﹤0.01% 2626
2022
Q3 		$822K Buy
241,144
+74,203
+44% +$259K ﹤0.01% 2935
2022
Q2 		$367K Buy
166,941
+67,111
+67% +$150K ﹤0.01% 3135
2022
Q1 		$213K Sell
99,830
-58,036
-37% -$105K ﹤0.01% 3304
2021
Q4 		$287K Sell
157,866
-4,757
-3% -$12.4K ﹤0.01% 3278
2021
Q3 		$473K Sell
162,623
-34,407
-17% -$123K ﹤0.01% 3199
2021
Q2 		$904K Sell
197,030
-8,756
-4% -$36.1K ﹤0.01% 3049
2021
Q1 		$1.09M Hold
205,786
– – ﹤0.01% 2999
2020
Q4 		$916K Sell
205,786
-72,432
-26% -$176K ﹤0.01% 2995
2020
Q3 		$445K Sell
278,218
-188,098
-40% -$277K ﹤0.01% 3083
2020
Q2 		$550K Sell
466,316
-286,841
-38% -$333K ﹤0.01% 3063
2020
Q1 		$564K Sell
753,157
-1,294
-0.2% -$1.71K ﹤0.01% 3030
2019
Q4 		$1.66M Sell
754,451
-79,682
-10% -$143K ﹤0.01% 2900
2019
Q3 		$2.07M Buy
834,133
+107,341
+15% +$510K ﹤0.01% 2852
2019
Q2 		$5M Buy
726,792
+151,398
+26% +$1.92M ﹤0.01% 2635
2019
Q1 		$9.58M Buy
575,394
+202,349
+54% +$4.32M ﹤0.01% 2417
2018
Q4 		$6.71M Buy
373,045
+109,883
+42% +$2.7M ﹤0.01% 2507
2018
Q3 		$7.66M Buy
263,162
+163,137
+163% +$5.37M ﹤0.01% 2531
2018
Q2 		$3.4M Buy
100,025
+30,603
+44% +$1.08M ﹤0.01% 2750
2018
Q1 		$2.23M Buy
+69,422
New +$1.73M ﹤0.01% 2844

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
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
EF
Empowered Funds Havertown, Pennsylvania $15.7B AUM 34.02% 1-Year Est. Return

Dimensional Fund Advisors's TUSK Position: Q1 2026 in Review

Dimensional Fund Advisors reduced its Mammoth Energy Services (TUSK) stake by 1.9% in Q1 2026, selling an estimated $30.7K and leaving 686,199 shares worth $1.68M. The position accounts for ﹤0.01% of the portfolio, ranked #2742.

Dimensional Fund Advisors first reported a position in TUSK in Q1 2018 and has held it in 33 quarters since. The position peaked at $9.58M in Q1 2019. 90 funds tracked by Wall St. Rank hold TUSK as of Q1 2026.

  • Dimensional Fund Advisors held 686,199 shares of Mammoth Energy Services worth $1.68M as of Q1 2026.
  • Dimensional Fund Advisors sold 13,479 Mammoth Energy Services shares in Q1 2026, an estimated $30.7K.
  • Mammoth Energy Services made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #2742 holding.
  • Dimensional Fund Advisors first reported a position in Mammoth Energy Services in Q1 2018 and has held it in 33 quarters since.
  • Dimensional Fund Advisors's Mammoth Energy Services position peaked at $9.58M in Q1 2019.
  • 90 funds tracked by Wall St. Rank held Mammoth Energy Services as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.