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
Q2 		$81.5K Sell
39,941
-224,344
-85% -$411K ﹤0.01% 10714
2026
Q1 		$473K Sell
264,285
-229,564
-46% -$487K ﹤0.01% 8183
2025
Q4 		$1.11M Buy
493,849
+424,856
+616% +$1.12M ﹤0.01% 5917
2025
Q3 		$167K Sell
68,993
-522,695
-88% -$1.39M ﹤0.01% 9801
2025
Q2 		$350K Buy
+591,688
New +$461K ﹤0.01% 7571
2024
Q4 		– Sell
-40,530
Closed -$77.8K – 10307
2024
Q3 		$77.8K Sell
40,530
-6,945
-15% -$15.8K ﹤0.01% 9074
2024
Q2 		$117K Sell
47,475
-44,201
-48% -$119K ﹤0.01% 8669
2024
Q1 		$150K Buy
91,676
+28,848
+46% +$42.4K ﹤0.01% 8344
2023
Q4 		$112K Buy
62,828
+41,472
+194% +$88.9K ﹤0.01% 8534
2023
Q3 		$97.8K Sell
21,356
-4,068
-16% -$38.9K ﹤0.01% 7963
2023
Q2 		$284K Sell
25,424
-9,140
-26% -$97.3K ﹤0.01% 7211
2023
Q1 		$391K Buy
+34,564
New +$368K ﹤0.01% 6751
2022
Q3 		– Sell
-150,007
Closed -$1.49M – 10280
2022
Q2 		$1.49M Sell
150,007
-458
-0.3% -$4.53K ﹤0.01% 4710
2022
Q1 		$1.49M Buy
150,465
+263
+0.2% +$2.59K ﹤0.01% 5312
2021
Q4 		$1.49M Buy
150,202
+202
+0.1% +$2K ﹤0.01% 5105
2021
Q3 		$1.47M Hold
150,000
– – ﹤0.01% 5116
2021
Q2 		$1.52M Buy
+150,000
New +$1.52M ﹤0.01% 4908

Other funds holding PROK

SCM
Suvretta Capital Management New York $5.47B AUM 131.34% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
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

Jane Street's PROK Position: Q2 2026 in Review

Jane Street reduced its ProKidney (PROK) stake by 85% in Q2 2026, selling an estimated $411K and leaving 39,941 shares worth $81.5K. The position accounts for ﹤0.01% of the portfolio, ranked #10714.

Jane Street first reported a position in PROK in Q2 2021 and has held it in 17 quarters since. The position peaked at $1.52M in Q2 2021. 71 funds tracked by Wall St. Rank hold PROK as of Q2 2026.

  • Jane Street held 39,941 shares of ProKidney worth $81.5K as of Q2 2026.
  • Jane Street sold 224,344 ProKidney shares in Q2 2026, an estimated $411K.
  • ProKidney made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #10714 holding.
  • Jane Street first reported a position in ProKidney in Q2 2021 and has held it in 17 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 Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.