ProKidney
PROK
56 hedge funds and large institutions have $83.4M invested in ProKidney in 2025 Q3 according to their latest regulatory filings, with 17 funds opening new positions, 13 increasing their positions, 20 reducing their positions, and 17 closing their positions.
300% more capital invested
Capital invested by funds: $20.9M → $83.4M (+$62.5M)
0% more funds holding
Funds holding: 56 → 56 (0)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
0% more first-time investments, than exits
New positions opened: 17 | Existing positions closed: 17
1.66% less ownership
Funds ownership: 27.19% → 25.52% (-1.7%)
35% less repeat investments, than reductions
Existing positions increased: 13 | Existing positions reduced: 20
65% less call options, than puts
Call options by funds: $485K | Put options by funds: $1.39M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$5.21M |
| 2 |
Morgan Stanley
New York
|
+$2.02M |
| 3 |
MA
MYDA Advisors
Woodmere,
New York
|
+$1.2M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$918K |
| 5 |
Squarepoint
New York
|
+$917K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JP Morgan Chase
New York
|
-$4.44M |
| 2 |
Jane Street
New York
|
-$1.39M |
| 3 |
BlackRock
New York
|
-$1.3M |
| 4 |
Goldman Sachs
New York
|
-$1.11M |
| 5 |
Marshall Wace
London,
United Kingdom
|
-$1.02M |
PROK Hedge Fund Activity: Q3 2025 in Review
56 of the 7,641 institutional investors tracked by Wall St. Rank reported a position in ProKidney (PROK) for Q3 2025, worth a combined $83.4M — up 300% from $20.9M a quarter earlier.
Fund positioning in PROK was balanced in Q3 2025: 17 funds opened new positions, 17 closed out, 13 added to existing stakes and 20 trimmed.
The largest buyer was Millennium Management, opening a new position worth an estimated $5.21M. The largest seller was JP Morgan Chase, cutting an estimated $4.44M.
- 56 institutional investors held ProKidney (PROK) as of Q3 2025, unchanged from Q2 2025.
- Funds reported $83.4M of ProKidney stock for Q3 2025, up 300% quarter-over-quarter.
- 17 funds opened new ProKidney positions in Q3 2025 and 17 closed out, a net change of 0 holders.
- The largest ProKidney buyer in Q3 2025 was Millennium Management, an estimated $5.21M added.
- The largest ProKidney seller in Q3 2025 was JP Morgan Chase, an estimated $4.44M sold.
Based on aggregated 13F filings for Q3 2025.