State Street
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State Street’s Mammoth Energy Services TUSK Stock Holding History

State Street’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 		$1.03M Buy
421,922
+13,438
+3% +$30.6K ﹤0.01% 3483
2025
Q4 		$756K Buy
408,484
+1,568
+0.4% +$3.17K ﹤0.01% 3584
2025
Q3 		$932K Sell
406,916
-1,847
-0.5% -$4.55K ﹤0.01% 3527
2025
Q2 		$1.14M Buy
408,763
+6,400
+2% +$16.4K ﹤0.01% 3463
2025
Q1 		$821K Hold
402,363
– – ﹤0.01% 3470
2024
Q4 		$1.21M Sell
402,363
-1,325
-0.3% -$4.88K ﹤0.01% 3447
2024
Q3 		$1.65M Buy
403,688
+5,400
+1% +$19.8K ﹤0.01% 3381
2024
Q2 		$1.31M Sell
398,288
-9,378
-2% -$32.2K ﹤0.01% 3433
2024
Q1 		$1.48M Buy
407,666
+2,600
+0.6% +$9.8K ﹤0.01% 3373
2023
Q4 		$1.81M Sell
405,066
-9,540
-2% -$42.3K ﹤0.01% 3342
2023
Q3 		$1.92M Buy
414,606
+1,400
+0.3% +$6.81K ﹤0.01% 3353
2023
Q2 		$2M Buy
413,206
+334,492
+425% +$1.39M ﹤0.01% 3413
2023
Q1 		$332K Buy
78,714
+16,100
+26% +$95.9K ﹤0.01% 3891
2022
Q4 		$542K Buy
62,614
+9,000
+17% +$51.3K ﹤0.01% 3747
2022
Q3 		$183K Hold
53,614
– – ﹤0.01% 4189
2022
Q2 		$118K Sell
53,614
-17,100
-24% -$38.3K ﹤0.01% 4450
2022
Q1 		$151K Hold
70,714
– – ﹤0.01% 4491
2021
Q4 		$129K Hold
70,714
– – ﹤0.01% 4513
2021
Q3 		$206K Buy
70,714
+18,307
+35% +$65.3K ﹤0.01% 4351
2021
Q2 		$241K Buy
52,407
+41,507
+381% +$171K ﹤0.01% 4142
2021
Q1 		$58K Buy
+10,900
New +$55.1K ﹤0.01% 3934
2020
Q2 		– Sell
-251,860
Closed -$189K – 3858
2020
Q1 		$189K Sell
251,860
-57,669
-19% -$76K ﹤0.01% 3573
2019
Q4 		$681K Sell
309,529
-11,172
-3% -$20K ﹤0.01% 3475
2019
Q3 		$795K Buy
320,701
+76,092
+31% +$361K ﹤0.01% 3440
2019
Q2 		$1.68M Buy
244,609
+11,556
+5% +$147K ﹤0.01% 3303
2019
Q1 		$3.88M Sell
233,053
-4,204
-2% -$89.8K ﹤0.01% 2867
2018
Q4 		$4.27M Buy
237,257
+19,858
+9% +$488K ﹤0.01% 2799
2018
Q3 		$6.33M Buy
217,399
+54,583
+34% +$1.8M ﹤0.01% 2744
2018
Q2 		$5.53M Buy
162,816
+23,745
+17% +$834K ﹤0.01% 2812
2018
Q1 		$4.46M Buy
139,071
+13,540
+11% +$338K ﹤0.01% 2855
2017
Q4 		$2.46M Buy
125,531
+10,385
+9% +$189K ﹤0.01% 3108
2017
Q3 		$1.94M Buy
115,146
+900
+0.8% +$13.1K ﹤0.01% 3217
2017
Q2 		$2.13M Buy
114,246
+16,965
+17% +$317K ﹤0.01% 3109
2017
Q1 		$2.09M Buy
97,281
+23,360
+32% +$446K ﹤0.01% 3077
2016
Q4 		$1.12M Buy
+73,921
New +$1.09M ﹤0.01% 3254

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
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

State Street's TUSK Position: Q1 2026 in Review

State Street increased its Mammoth Energy Services (TUSK) stake by 3.3% in Q1 2026, buying an estimated $30.6K and bringing the position to 421,922 shares worth $1.03M. The position accounts for ﹤0.01% of the portfolio, ranked #3483.

State Street first reported a position in TUSK in Q4 2016 and has held it in 35 quarters since. The position peaked at $6.33M in Q3 2018. 90 funds tracked by Wall St. Rank hold TUSK as of Q1 2026.

  • State Street held 421,922 shares of Mammoth Energy Services worth $1.03M as of Q1 2026.
  • State Street bought 13,438 Mammoth Energy Services shares in Q1 2026, an estimated $30.6K.
  • Mammoth Energy Services made up ﹤0.01% of State Street's portfolio in Q1 2026, its #3483 holding.
  • State Street first reported a position in Mammoth Energy Services in Q4 2016 and has held it in 35 quarters since.
  • State Street's Mammoth Energy Services position peaked at $6.33M in Q3 2018.
  • 90 funds tracked by Wall St. Rank held Mammoth Energy Services as of Q1 2026.

Based on State Street's 13F filing for Q1 2026, filed 15 May 2026.