Jane Street
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Jane Street’s ProKidney PROK Stock Holding History

Jane Street’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 		$22.6K Sell
12,600
-23,800
-65% -$50.5K ﹤0.01% 11176
2025
Q4 		$81.5K Buy
36,400
+11,500
+46% +$30.2K ﹤0.01% 10296
2025
Q3 		$60.3K Buy
+24,900
New +$66.3K ﹤0.01% 10296

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

Jane Street's PROK Position: Q1 2026 in Review

Jane Street reduced its ProKidney (PROK) stake by 46% in Q1 2026, selling an estimated $487K and leaving 264,285 shares worth $473K. The position accounts for ﹤0.01% of the portfolio, ranked #8183.

Jane Street first reported a position in PROK in Q2 2021 and has held it in 16 quarters since. The position peaked at $1.52M in Q2 2021. 71 funds tracked by Wall St. Rank hold PROK as of Q1 2026.

  • Jane Street held 264,285 shares of ProKidney worth $473K as of Q1 2026.
  • Jane Street sold 229,564 ProKidney shares in Q1 2026, an estimated $487K.
  • ProKidney made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #8183 holding.
  • Jane Street first reported a position in ProKidney in Q2 2021 and has held it in 16 quarters since.
  • Jane Street's ProKidney position peaked at $1.52M in Q2 2021.
  • 71 funds tracked by Wall St. Rank held ProKidney as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.