Leopold Aschenbrenner
PUMP icon

Leopold Aschenbrenner’s ProPetro Holding PUMP Stock Holding History

Leopold Aschenbrenner’s Portfolio PUMP Stock Details PUMP Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$28.1M Buy
1,960,382
+1,050,082
+115% +$16.3M 0.14% 22
2026
Q1 		$13.1M Hold
910,300
– – 0.1% 33
2025
Q4 		$8.66M Buy
+910,300
New +$7.91M 0.16% 27

Other funds holding PUMP

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Sourcerock Group
Sourcerock Group Denver, Colorado $1.92B AUM 45.54% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Encompass Capital Advisors
Encompass Capital Advisors New York $2.81B AUM 198.36% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
CCPM
Cooper Creek Partners Management New York $4.21B AUM 44.81% 1-Year Est. Return
Valiant Capital Management
Valiant Capital Management San Francisco, California $2.48B AUM 57.08% 1-Year Est. Return
VR Advisory Services
VR Advisory Services Camana Bay, Grand Cayman, Cayman Islands $1.13B AUM 38.97% 1-Year Est. Return

Leopold Aschenbrenner's PUMP Position: Q2 2026 in Review

Leopold Aschenbrenner increased its ProPetro Holding (PUMP) stake by 115% in Q2 2026, buying an estimated $16.3M and bringing the position to 1,960,382 shares worth $28.1M. The position accounts for 0.14% of the portfolio, ranked #22.

Leopold Aschenbrenner first reported a position in PUMP in Q4 2025 and has held it in 3 quarters since. 270 funds tracked by Wall St. Rank hold PUMP as of Q2 2026.

  • Leopold Aschenbrenner held 1,960,382 shares of ProPetro Holding worth $28.1M as of Q2 2026.
  • Leopold Aschenbrenner bought 1,050,082 ProPetro Holding shares in Q2 2026, an estimated $16.3M.
  • ProPetro Holding made up 0.14% of Leopold Aschenbrenner's portfolio in Q2 2026, its #22 holding.
  • Leopold Aschenbrenner first reported a position in ProPetro Holding in Q4 2025 and has held it in 3 quarters since.
  • 270 funds tracked by Wall St. Rank held ProPetro Holding as of Q2 2026.

Based on Situational Awareness's 13F filing for Q2 2026, filed 14 Aug 2026.