Simplex Trading
PROK icon

Simplex Trading’s ProKidney PROK Stock Holding History

Simplex Trading’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 		– Sell
-6,741
Closed -$12.3K – 10106
2026
Q1 		$12.1K Sell
6,741
-79,305
-92% -$168K ﹤0.01% 7184
2025
Q4 		$193K Buy
86,046
+8,228
+11% +$21.6K ﹤0.01% 4276
2025
Q3 		$188K Buy
+77,818
New +$207K ﹤0.01% 5012
2023
Q4 		– Sell
-119
Closed -$255 – 9598
2023
Q3 		$0 Buy
+119
New +$1.14K ﹤0.01% 9584

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

Simplex Trading's PROK Position: Q2 2026 in Review

Simplex Trading sold out of ProKidney (PROK) in Q2 2026, closing a stake of 6,741 shares — an estimated $12.3K sold.

Simplex Trading first reported a position in PROK in Q3 2023 and held it in 4 quarters. The position peaked at $193K in Q4 2025. 71 funds tracked by Wall St. Rank hold PROK as of Q2 2026.

  • Simplex Trading reported no remaining ProKidney position as of Q2 2026 after selling out during the quarter.
  • Simplex Trading sold 6,741 ProKidney shares in Q2 2026, an estimated $12.3K.
  • Simplex Trading first reported a position in ProKidney in Q3 2023 and held it in 4 quarters.
  • Simplex Trading's ProKidney position peaked at $193K in Q4 2025.
  • 71 funds tracked by Wall St. Rank held ProKidney as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.