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
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

Other funds holding PROK

SCM
Suvretta Capital Management New York $3.92B AUM 86.67% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
BL
Bleichroeder LP New York $579M AUM 94.36% 1-Year Est. Return
AGP
Artia Global Partners Miami, Florida $499M AUM 186.05% 1-Year Est. Return
HWAM
Hennion & Walsh Asset Management Parsippany, New Jersey $3.5B AUM 41.95% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Hudson Bay Capital Management's PROK Position: Q1 2026 in Review

Hudson Bay Capital Management increased its ProKidney (PROK) stake by 38% in Q1 2026, buying an estimated $36.1K and bringing the position to 62,084 shares worth $111K. The position accounts for ﹤0.01% of the portfolio, ranked #1171.

Hudson Bay Capital Management first reported a position in PROK in Q2 2025 and has held it in 3 quarters since. 71 funds tracked by Wall St. Rank hold PROK as of Q1 2026.

  • Hudson Bay Capital Management held 62,084 shares of ProKidney worth $111K as of Q1 2026.
  • Hudson Bay Capital Management bought 17,028 ProKidney shares in Q1 2026, an estimated $36.1K.
  • ProKidney made up ﹤0.01% of Hudson Bay Capital Management's portfolio in Q1 2026, its #1171 holding.
  • Hudson Bay Capital Management first reported a position in ProKidney in Q2 2025 and has held it in 3 quarters since.
  • 71 funds tracked by Wall St. Rank held ProKidney as of Q1 2026.

Based on Hudson Bay Capital Management's 13F filing for Q1 2026, filed 13 May 2026.