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 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 New York $5.72T AUM 30.48% 1-Year Est. Return

Sourcerock Group Denver, Colorado $2.48B AUM 72.25% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VCM

Valiant Capital Management San Francisco, California $1.74B AUM 64.05% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Leopold Aschenbrenner's PUMP Position: Q1 2026 in Review

Leopold Aschenbrenner held its ProPetro Holding (PUMP) position steady in Q1 2026 at 910,300 shares worth $13.1M. The position accounts for 0.1% of the portfolio, ranked #33.

Leopold Aschenbrenner first reported a position in PUMP in Q4 2025 and has held it in 2 quarters since. 256 funds tracked by Wall St. Rank hold PUMP as of Q1 2026.

Leopold Aschenbrenner held 910,300 shares of ProPetro Holding worth $13.1M as of Q1 2026.
Leopold Aschenbrenner left its ProPetro Holding share count unchanged in Q1 2026.
ProPetro Holding made up 0.1% of Leopold Aschenbrenner's portfolio in Q1 2026, its #33 holding.
Leopold Aschenbrenner first reported a position in ProPetro Holding in Q4 2025 and has held it in 2 quarters since.
256 funds tracked by Wall St. Rank held ProPetro Holding as of Q1 2026.

Based on Situational Awareness's 13F filing for Q1 2026, filed 18 May 2026.