JY
PROK icon

Jeff Yass’s ProKidney PROK Stock Holding History

Jeff Yass’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 		– Sell
-128,500
Closed -$288K – 13907
2025
Q4 		$288K Sell
128,500
-52,100
-29% -$137K ﹤0.01% 10051
2025
Q3 		$437K Buy
+180,600
New +$481K ﹤0.01% 9266

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

Jeff Yass's PROK Position: Q2 2026 in Review

Jeff Yass increased its ProKidney (PROK) stake by 24% in Q2 2026, buying an estimated $88.6K and bringing the position to 252,906 shares worth $516K. The position accounts for ﹤0.01% of the portfolio, ranked #9860.

Jeff Yass first reported a position in PROK in Q2 2023 and has held it in 10 quarters since. The position peaked at $893K in Q4 2025. 71 funds tracked by Wall St. Rank hold PROK as of Q2 2026.

  • Jeff Yass held 252,906 shares of ProKidney worth $516K as of Q2 2026.
  • Jeff Yass bought 48,418 ProKidney shares in Q2 2026, an estimated $88.6K.
  • ProKidney made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #9860 holding.
  • Jeff Yass first reported a position in ProKidney in Q2 2023 and has held it in 10 quarters since.
  • Jeff Yass's ProKidney position peaked at $893K in Q4 2025.
  • 71 funds tracked by Wall St. Rank held ProKidney as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.