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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
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
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
SG
Sourcerock Group Denver, Colorado $2.48B AUM 72.25% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
D.E. Shaw & Co
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
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Oberweis Asset Management's PUMP Position: Q1 2026 in Review

Oberweis Asset Management increased its ProPetro Holding (PUMP) stake by 1.9% in Q1 2026, buying an estimated $210K and bringing the position to 965,500 shares worth $13.9M. The position accounts for 0.41% of the portfolio, ranked #98.

Oberweis Asset Management 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.

  • Oberweis Asset Management held 965,500 shares of ProPetro Holding worth $13.9M as of Q1 2026.
  • Oberweis Asset Management bought 17,600 ProPetro Holding shares in Q1 2026, an estimated $210K.
  • ProPetro Holding made up 0.41% of Oberweis Asset Management's portfolio in Q1 2026, its #98 holding.
  • Oberweis Asset Management 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 Oberweis Asset Management's 13F filing for Q1 2026, filed 15 May 2026.