Aaron Cowen’s ProKidney PROK Stock Holding History

Aaron Cowen’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	$25.2M	Hold	12,341,266	–	–	0.46%	48
2026 Q1	$22.1M	Hold	12,341,266	–	–	0.56%	44
2025 Q4	$27.6M	Hold	12,341,266	–	–	0.57%	49
2025 Q3	$29.9M	Hold	12,341,266	–	–	0.76%	43
2025 Q2	$7.31M	Hold	12,341,266	–	–	0.22%	57
2025 Q1	$10.8M	Hold	12,341,266	–	–	0.4%	54
2024 Q4	$20.9M	Hold	12,341,266	–	–	0.71%	43
2024 Q3	$23.7M	Buy	12,341,266 +3,000,000	+32%	+$6.81M	0.76%	42
2024 Q2	$23M	Buy	9,341,266 +5,473,419	+142%	+$14.7M	0.84%	38
2024 Q1	$6.34M	Hold	3,867,847	–	–	0.24%	61
2023 Q4	$6.88M	Buy	3,867,847 +4	+0%	+$9	0.31%	49
2023 Q3	$17.7M	Buy	3,867,843 +674,668	+21%	+$6.46M	0.96%	33
2023 Q2	$35.7M	Hold	3,193,175	–	–	1.91%	17
2023 Q1	$36.1M	Hold	3,193,175	–	–	1.53%	26
2022 Q4	$21.9M	Hold	3,193,175	–	–	0.92%	37
2022 Q3	$28.8M	Buy	+3,193,175	New	+$27.8M	1.19%	31

Other funds holding PROK

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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 Malvern, Pennsylvania $4.68T AUM

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Aaron Cowen's PROK Position: Q2 2026 in Review

Aaron Cowen held its ProKidney (PROK) position steady in Q2 2026 at 12,341,266 shares worth $25.2M. The position accounts for 0.46% of the portfolio, ranked #48.

Aaron Cowen first reported a position in PROK in Q3 2022 and has held it in 16 quarters since. The position peaked at $36.1M in Q1 2023. 71 funds tracked by Wall St. Rank hold PROK as of Q2 2026.

Aaron Cowen held 12,341,266 shares of ProKidney worth $25.2M as of Q2 2026.
Aaron Cowen left its ProKidney share count unchanged in Q2 2026.
ProKidney made up 0.46% of Aaron Cowen's portfolio in Q2 2026, its #48 holding.
Aaron Cowen first reported a position in ProKidney in Q3 2022 and has held it in 16 quarters since.
Aaron Cowen's ProKidney position peaked at $36.1M in Q1 2023.
71 funds tracked by Wall St. Rank held ProKidney as of Q2 2026.

Based on Suvretta Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.