JO
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John Overdeck’s ProKidney PROK Stock Holding History

John Overdeck’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 		$557K Sell
273,259
-73,123
-21% -$134K ﹤0.01% 4078
2026
Q1 		$620K Sell
346,382
-119,127
-26% -$253K ﹤0.01% 3585
2025
Q4 		$1.04M Buy
465,509
+366,227
+369% +$963K ﹤0.01% 2881
2025
Q3 		$240K Buy
99,282
+28,583
+40% +$76.1K ﹤0.01% 3309
2025
Q2 		$41.9K Buy
+70,699
New +$55K ﹤0.01% 3083

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

John Overdeck's PROK Position: Q2 2026 in Review

John Overdeck reduced its ProKidney (PROK) stake by 21% in Q2 2026, selling an estimated $134K and leaving 273,259 shares worth $557K. The position accounts for ﹤0.01% of the portfolio, ranked #4078.

John Overdeck first reported a position in PROK in Q2 2025 and has held it in 5 quarters since. The position peaked at $1.04M in Q4 2025. 71 funds tracked by Wall St. Rank hold PROK as of Q2 2026.

  • John Overdeck held 273,259 shares of ProKidney worth $557K as of Q2 2026.
  • John Overdeck sold 73,123 ProKidney shares in Q2 2026, an estimated $134K.
  • ProKidney made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #4078 holding.
  • John Overdeck first reported a position in ProKidney in Q2 2025 and has held it in 5 quarters since.
  • John Overdeck's ProKidney position peaked at $1.04M in Q4 2025.
  • 71 funds tracked by Wall St. Rank held ProKidney as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.