Oberweis Asset Management’s ProPetro Holding PUMP Stock Holding History

Oberweis Asset Management’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	$15.7M	Buy	1,097,100 +131,600	+14%	+$2.04M	0.33%	108
2026 Q1	$13.9M	Buy	965,500 +17,600	+2%	+$210K	0.41%	98
2025 Q4	$9.01M	Buy	+947,900	New	+$8.24M	0.33%	113

Other funds holding PUMP

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Sourcerock Group Denver, Colorado $1.92B AUM 45.54% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

ECA

Encompass Capital Advisors New York $2.81B AUM 198.36% 1-Year Est. Return

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

VCM

Valiant Capital Management San Francisco, California $2.48B AUM 57.08% 1-Year Est. Return

VAS

VR Advisory Services Camana Bay, Grand Cayman, Cayman Islands $1.13B AUM 38.97% 1-Year Est. Return

Oberweis Asset Management's PUMP Position: Q2 2026 in Review

Oberweis Asset Management increased its ProPetro Holding (PUMP) stake by 14% in Q2 2026, buying an estimated $2.04M and bringing the position to 1,097,100 shares worth $15.7M. The position accounts for 0.33% of the portfolio, ranked #108.

Oberweis Asset Management 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.

Oberweis Asset Management held 1,097,100 shares of ProPetro Holding worth $15.7M as of Q2 2026.
Oberweis Asset Management bought 131,600 ProPetro Holding shares in Q2 2026, an estimated $2.04M.
ProPetro Holding made up 0.33% of Oberweis Asset Management's portfolio in Q2 2026, its #108 holding.
Oberweis Asset Management 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 Oberweis Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.