Renaissance Technologies’s ProKidney PROK Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$2.24M Sell
1,099,400
-151,394
-12% -$277K ﹤0.01% 1898
2026
Q1
$2.24M Buy
1,250,794
+355,089
+40% +$753K ﹤0.01% 1839
2025
Q4
$2.01M Buy
895,705
+763,705
+579% +$2.01M ﹤0.01% 1866
2025
Q3
$319K Sell
132,000
-279,645
-68% -$744K ﹤0.01% 2974
2025
Q2
$244K Buy
411,645
+253,145
+160% +$197K ﹤0.01% 3109
2025
Q1
$139K Buy
158,500
+53,300
+51% +$74K ﹤0.01% 3142
2024
Q4
$178K Buy
105,200
+59,000
+128% +$106K ﹤0.01% 3195
2024
Q3
$88.7K Buy
+46,200
New +$105K ﹤0.01% 3275
2024
Q2
Sell
-95,171
Closed -$156K 3872
2024
Q1
$156K Sell
95,171
-24,829
-21% -$36.5K ﹤0.01% 3283
2023
Q4
$214K Buy
+120,000
New +$257K ﹤0.01% 3113

Other funds holding PROK

Renaissance Technologies's PROK Position: Q2 2026 in Review

Renaissance Technologies reduced its ProKidney (PROK) stake by 12% in Q2 2026, selling an estimated $277K and leaving 1,099,400 shares worth $2.24M. The position accounts for ﹤0.01% of the portfolio, ranked #1898.

Renaissance Technologies first reported a position in PROK in Q4 2023 and has held it in 10 quarters since. 71 funds tracked by Wall St. Rank hold PROK as of Q2 2026.

  • Renaissance Technologies held 1,099,400 shares of ProKidney worth $2.24M as of Q2 2026.
  • Renaissance Technologies sold 151,394 ProKidney shares in Q2 2026, an estimated $277K.
  • ProKidney made up ﹤0.01% of Renaissance Technologies's portfolio in Q2 2026, its #1898 holding.
  • Renaissance Technologies first reported a position in ProKidney in Q4 2023 and has held it in 10 quarters since.
  • 71 funds tracked by Wall St. Rank held ProKidney as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.