Jane Street’s ProKidney PROK Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$65.2K Buy
36,400
+20,500
+129% +$43.5K ﹤0.01% 10867
2025
Q4
$35.6K Buy
15,900
+4,800
+43% +$12.6K ﹤0.01% 10600
2025
Q3
$26.9K Buy
+11,100
New +$29.5K ﹤0.01% 10481

Other funds holding PROK

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.