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Portolan Capital Management’s ProPetro Holding PUMP Stock Holding History

Portolan Capital 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 		– Sell
-314,815
Closed -$4.54M – 168
2026
Q1 		$4.54M Buy
+314,815
New +$3.76M 0.24% 105

Other funds holding PUMP

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

Portolan Capital Management's PUMP Position: Q2 2026 in Review

Portolan Capital Management sold out of ProPetro Holding (PUMP) in Q2 2026, closing a stake of 314,815 shares — an estimated $4.54M sold.

Portolan Capital Management first reported a position in PUMP in Q1 2026 and held it in 1 quarter. The position peaked at $4.54M in Q1 2026. 270 funds tracked by Wall St. Rank hold PUMP as of Q2 2026.

  • Portolan Capital Management reported no remaining ProPetro Holding position as of Q2 2026 after selling out during the quarter.
  • Portolan Capital Management sold 314,815 ProPetro Holding shares in Q2 2026, an estimated $4.54M.
  • Portolan Capital Management first reported a position in ProPetro Holding in Q1 2026 and held it in 1 quarter.
  • Portolan Capital Management's ProPetro Holding position peaked at $4.54M in Q1 2026.
  • 270 funds tracked by Wall St. Rank held ProPetro Holding as of Q2 2026.

Based on Portolan Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.