Wellington Management Group
TUSK icon

Wellington Management Group’s Mammoth Energy Services TUSK Stock Holding History

Wellington Management Group’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 		$168K Buy
68,415
+12,017
+21% +$27.4K ﹤0.01% 1849
2025
Q4 		$104K Hold
56,398
– – ﹤0.01% 1903
2025
Q3 		$129K Sell
56,398
-58,814
-51% -$145K ﹤0.01% 1960
2025
Q2 		$323K Buy
115,212
+53,413
+86% +$137K ﹤0.01% 1868
2025
Q1 		$126K Buy
61,799
+12,238
+25% +$32.6K ﹤0.01% 1914
2024
Q4 		$149K Buy
49,561
+1,490
+3% +$5.49K ﹤0.01% 1909
2024
Q3 		$197K Buy
+48,071
New +$176K ﹤0.01% 1894
2018
Q4 		– Sell
-8,755
Closed -$255K – 2203
2018
Q3 		$255K Sell
8,755
-59,677
-87% -$1.97M ﹤0.01% 2153
2018
Q2 		$2.32M Buy
+68,432
New +$2.4M ﹤0.01% 1685

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

Wellington Management Group's TUSK Position: Q1 2026 in Review

Wellington Management Group increased its Mammoth Energy Services (TUSK) stake by 21% in Q1 2026, buying an estimated $27.4K and bringing the position to 68,415 shares worth $168K. The position accounts for ﹤0.01% of the portfolio, ranked #1849.

Wellington Management Group first reported a position in TUSK in Q2 2018 and has held it in 9 quarters since. The position peaked at $2.32M in Q2 2018. 90 funds tracked by Wall St. Rank hold TUSK as of Q1 2026.

  • Wellington Management Group held 68,415 shares of Mammoth Energy Services worth $168K as of Q1 2026.
  • Wellington Management Group bought 12,017 Mammoth Energy Services shares in Q1 2026, an estimated $27.4K.
  • Mammoth Energy Services made up ﹤0.01% of Wellington Management Group's portfolio in Q1 2026, its #1849 holding.
  • Wellington Management Group first reported a position in Mammoth Energy Services in Q2 2018 and has held it in 9 quarters since.
  • Wellington Management Group's Mammoth Energy Services position peaked at $2.32M in Q2 2018.
  • 90 funds tracked by Wall St. Rank held Mammoth Energy Services as of Q1 2026.

Based on Wellington Management Group's 13F filing for Q1 2026, filed 15 May 2026.