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ProKidney
PROK

71 hedge funds and large institutions have $78.1M invested in ProKidney in 2026 Q1 according to their latest regulatory filings, with 17 funds opening new positions, 19 increasing their positions, 22 reducing their positions, and 8 closing their positions.

New
Increased
Maintained
Reduced
Closed

113% more first-time investments, than exits

New positions opened: 17 | Existing positions closed: 8

13% more funds holding

Funds holding: 63 → 71 (+8)

0.42% more ownership

Funds ownership: 30.34% → 30.76% (+0.42%)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

14% less repeat investments, than reductions

Existing positions increased: 19 | Existing positions reduced: 22

18% less call options, than puts

Call options by funds: $74K | Put options by funds: $90K

19% less capital invested

Capital invested by funds: $96.2M → $78.1M (-$18.1M)

Holders
71
Holders Change
+8
Holders Change %
+12.7%
% of All Funds
0.87%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
17
Increased
19
Reduced
22
Closed
8
Calls
$74K
Puts
$90K
Net Calls
-$16K
Net Calls Change
+$425K

Top Buyers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
+$927K
2
Marshall Wace
Marshall Wace
United Kingdom
+$847K
3
Renaissance Technologies
Renaissance Technologies
New York
+$753K
4
Morgan Stanley
Morgan Stanley
New York
+$295K
5
ECM
ExodusPoint Capital Management
New York
+$266K

Top Sellers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
-$789K
2
Goldman Sachs
Goldman Sachs
New York
-$550K
3
Jane Street
Jane Street
New York
-$487K
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$412K
5
Squarepoint
Squarepoint
New York
-$298K
Name Holding Trade Value Shares
Change 		Change in
Stake
Squarepoint
26
Squarepoint
New York
$378K -$298K -140,314 -40%
Susquehanna International Group
27
Susquehanna International Group
Pennsylvania
$366K -$412K -194,392 -49%
GCP
28
GSA Capital Partners
United Kingdom
$364K +$30.1K +14,182 +8%
Barclays
29
Barclays
United Kingdom
$262K -$50.3K -23,717 -14%
VIA
30
Virtus Investment Advisers
Connecticut
$221K +$6.39K +3,012 +3%
HF
31
HRT Financial
New York
$212K +$252K +118,981 New
VCM
32
Voleon Capital Management
California
$184K +$218K +102,698 New
SPS
33
Susquehanna Portfolio Strategies
Pennsylvania
$174K -$23.5K -11,066 -10%
EC
34
EntryPoint Capital
New York
$148K +$115K +54,045 +188%
OAC
35
OMERS Administration Corp
Ontario, Canada
$122K -$120K -56,500 -45%
Point72 Asset Management
36
Point72 Asset Management
Connecticut
$117K +$103K +48,491 +284%
BHCM
37
Brevan Howard Capital Management
Jersey
$115K +$136K +64,153 New
Hudson Bay Capital Management
38
Hudson Bay Capital Management
Connecticut
$111K +$36.1K +17,028 +38%
JG
39
Jain Global
New York
$91.8K +$109K +51,305 New
Citigroup
40
Citigroup
New York
$88.4K -$26.2K -12,343 -20%
DC
41
Diametric Capital
Massachusetts
$85.6K +$101K +47,827 New
CFM
42
Catalyst Funds Management
Australia
$85.6K +$101K +47,800 New
JFG
43
Jefferies Financial Group
New York
$83.1K -$33.2K -15,637 -25%
VGA
44
Vanguard Global Advisers
Pennsylvania
$61K +$72.3K +34,074 New
SSA
45
Schonfeld Strategic Advisors
New York
$58.8K +$69.7K +32,845 New
VFO
46
Virtus Family Office
Texas
$49.2K – – –
TRCT
47
Tower Research Capital (TRC)
New York
$36.6K +$43.3K +20,424 +136,160%
JF
48
Jump Financial
Illinois
$33.2K +$39.3K +18,540 New
LBA
49
Letko, Brosseau & Associates
Quebec, Canada
$28.5K – – –
SC
50
SummitTX Capital
Texas
$26.1K +$31K +14,600 New
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PROK Hedge Fund Activity: Q1 2026 in Review

71 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in ProKidney (PROK) for Q1 2026, worth a combined $78.1M — down 19% from $96.2M a quarter earlier.

Buyers outnumbered sellers: 17 funds opened new PROK positions and 8 closed out — a net gain of 9 holders — while 19 added to existing stakes and 22 trimmed.

The largest buyer was Millennium Management, adding an estimated $927K. The largest seller was Citadel Advisors, exiting entirely with an estimated $789K sold.

  • 71 institutional investors held ProKidney (PROK) as of Q1 2026, up from 63 in Q4 2025.
  • Funds reported $78.1M of ProKidney stock for Q1 2026, down 19% quarter-over-quarter.
  • 17 funds opened new ProKidney positions in Q1 2026 and 8 closed out, a net change of +9 holders.
  • The largest ProKidney buyer in Q1 2026 was Millennium Management, an estimated $927K added.
  • The largest ProKidney seller in Q1 2026 was Citadel Advisors, an estimated $789K sold.

Based on aggregated 13F filings for Q1 2026.