Hudson Bay Capital Management
PROK icon

Hudson Bay Capital Management’s ProKidney PROK Stock Holding History

Hudson Bay Capital Management’s Portfolio PROK Stock Details PROK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-62,084
Closed -$111K – 1616
2026
Q1 		$111K Buy
62,084
+17,028
+38% +$36.1K ﹤0.01% 1171
2025
Q4 		$101K Buy
+45,056
New +$118K ﹤0.01% 1022
2025
Q3 		– Sell
-29,887
Closed -$17.7K – 1594
2025
Q2 		$17.7K Buy
+29,887
New +$23.3K ﹤0.01% 1315

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Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
BL
Bleichroeder LP New York $559M AUM 83.7% 1-Year Est. Return
HWAM
Hennion & Walsh Asset Management Parsippany, New Jersey $3.5B AUM 41.95% 1-Year Est. Return
AGP
Artia Global Partners Miami, Florida $542M AUM 206.64% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Hudson Bay Capital Management's PROK Position: Q2 2026 in Review

Hudson Bay Capital Management sold out of ProKidney (PROK) in Q2 2026, closing a stake of 62,084 shares — an estimated $111K sold.

Hudson Bay Capital Management first reported a position in PROK in Q2 2025 and held it in 3 quarters. The position peaked at $111K in Q1 2026. 71 funds tracked by Wall St. Rank hold PROK as of Q2 2026.

  • Hudson Bay Capital Management reported no remaining ProKidney position as of Q2 2026 after selling out during the quarter.
  • Hudson Bay Capital Management sold 62,084 ProKidney shares in Q2 2026, an estimated $111K.
  • Hudson Bay Capital Management first reported a position in ProKidney in Q2 2025 and held it in 3 quarters.
  • Hudson Bay Capital Management's ProKidney position peaked at $111K in Q1 2026.
  • 71 funds tracked by Wall St. Rank held ProKidney as of Q2 2026.

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