Northern Trust
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Northern Trust’s Mammoth Energy Services TUSK Stock Holding History

Northern Trust’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 		$458K Buy
187,128
+19,283
+11% +$43.9K ﹤0.01% 3646
2025
Q4 		$311K Sell
167,845
-24,624
-13% -$49.7K ﹤0.01% 3818
2025
Q3 		$441K Sell
192,469
-1,373
-0.7% -$3.38K ﹤0.01% 3697
2025
Q2 		$543K Sell
193,842
-9,185
-5% -$23.5K ﹤0.01% 3622
2025
Q1 		$414K Sell
203,027
-3,012
-1% -$8.03K ﹤0.01% 3648
2024
Q4 		$618K Buy
206,039
+4,175
+2% +$15.4K ﹤0.01% 3579
2024
Q3 		$826K Buy
201,864
+9,191
+5% +$33.6K ﹤0.01% 3418
2024
Q2 		$632K Sell
192,673
-4,092
-2% -$14K ﹤0.01% 3417
2024
Q1 		$716K Buy
196,765
+1,787
+0.9% +$6.74K ﹤0.01% 3436
2023
Q4 		$870K Sell
194,978
-3,186
-2% -$14.1K ﹤0.01% 3362
2023
Q3 		$919K Buy
198,164
+11,592
+6% +$56.4K ﹤0.01% 3327
2023
Q2 		$901K Buy
186,572
+149,418
+402% +$619K ﹤0.01% 3397
2023
Q1 		$157K Buy
37,154
+2,168
+6% +$12.9K ﹤0.01% 3941
2022
Q4 		$303K Buy
34,986
+6,852
+24% +$39K ﹤0.01% 3676
2022
Q3 		$96K Buy
28,134
+4,218
+18% +$14.7K ﹤0.01% 4124
2022
Q2 		$53K Sell
23,916
-20,735
-46% -$46.5K ﹤0.01% 4391
2022
Q1 		$95K Hold
44,651
– – ﹤0.01% 4360
2021
Q4 		$81K Sell
44,651
-5,826
-12% -$15.2K ﹤0.01% 4484
2021
Q3 		$147K Sell
50,477
-26,516
-34% -$94.5K ﹤0.01% 4293
2021
Q2 		$354K Sell
76,993
-6,591
-8% -$27.2K ﹤0.01% 3858
2021
Q1 		$445K Sell
83,584
-546
-0.6% -$2.76K ﹤0.01% 3852
2020
Q4 		$374K Buy
84,130
+14,052
+20% +$34.2K ﹤0.01% 3797
2020
Q3 		$112K Buy
70,078
+21,504
+44% +$31.7K ﹤0.01% 3940
2020
Q2 		$58K Sell
48,574
-112,602
-70% -$131K ﹤0.01% 4034
2020
Q1 		$120K Sell
161,176
-33,904
-17% -$44.7K ﹤0.01% 3784
2019
Q4 		$429K Sell
195,080
-15,367
-7% -$27.6K ﹤0.01% 3593
2019
Q3 		$522K Sell
210,447
-12,872
-6% -$61.1K ﹤0.01% 3528
2019
Q2 		$1.54M Buy
223,319
+1,345
+0.6% +$17.1K ﹤0.01% 3196
2019
Q1 		$3.7M Buy
221,974
+5,214
+2% +$111K ﹤0.01% 2725
2018
Q4 		$3.9M Sell
216,760
-5,565
-3% -$137K ﹤0.01% 2653
2018
Q3 		$6.47M Buy
222,325
+50,654
+30% +$1.67M ﹤0.01% 2538
2018
Q2 		$5.83M Buy
171,671
+69,935
+69% +$2.46M ﹤0.01% 2608
2018
Q1 		$3.26M Buy
101,736
+4,741
+5% +$118K ﹤0.01% 2835
2017
Q4 		$1.9M Sell
96,995
-380
-0.4% -$6.92K ﹤0.01% 3164
2017
Q3 		$1.64M Buy
97,375
+5,072
+5% +$74K ﹤0.01% 3284
2017
Q2 		$1.72M Buy
92,303
+1,996
+2% +$37.3K ﹤0.01% 3262
2017
Q1 		$1.94M Sell
90,307
-2,118
-2% -$40.4K ﹤0.01% 3096
2016
Q4 		$1.41M Buy
+92,425
New +$1.37M ﹤0.01% 3250

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

Northern Trust's TUSK Position: Q1 2026 in Review

Northern Trust increased its Mammoth Energy Services (TUSK) stake by 11% in Q1 2026, buying an estimated $43.9K and bringing the position to 187,128 shares worth $458K. The position accounts for ﹤0.01% of the portfolio, ranked #3646.

Northern Trust first reported a position in TUSK in Q4 2016 and has held it in 38 quarters since. The position peaked at $6.47M in Q3 2018. 90 funds tracked by Wall St. Rank hold TUSK as of Q1 2026.

  • Northern Trust held 187,128 shares of Mammoth Energy Services worth $458K as of Q1 2026.
  • Northern Trust bought 19,283 Mammoth Energy Services shares in Q1 2026, an estimated $43.9K.
  • Mammoth Energy Services made up ﹤0.01% of Northern Trust's portfolio in Q1 2026, its #3646 holding.
  • Northern Trust first reported a position in Mammoth Energy Services in Q4 2016 and has held it in 38 quarters since.
  • Northern Trust's Mammoth Energy Services position peaked at $6.47M in Q3 2018.
  • 90 funds tracked by Wall St. Rank held Mammoth Energy Services as of Q1 2026.

Based on Northern Trust's 13F filing for Q1 2026, filed 14 May 2026.