Ardelyx
ARDX
221 hedge funds and large institutions have $809M invested in Ardelyx in 2025 Q1 according to their latest regulatory filings, with 42 funds opening new positions, 90 increasing their positions, 55 reducing their positions, and 34 closing their positions.
64% more repeat investments, than reductions
Existing positions increased: 90 | Existing positions reduced: 55
24% more first-time investments, than exits
New positions opened: 42 | Existing positions closed: 34
6% more capital invested
Capital invested by funds: $765M → $809M (+$43.3M)
5.33% more ownership
Funds ownership: 63.74% → 69.07% (+5.3%)
3% more funds holding
Funds holding: 214 → 221 (+7)
14% less call options, than puts
Call options by funds: $11.5M | Put options by funds: $13.3M
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Marshall Wace
London,
United Kingdom
|
+$44.4M |
| 2 |
Millennium Management
New York
|
+$18.8M |
| 3 |
Renaissance Technologies
New York
|
+$7.26M |
| 4 |
Nuveen
Charlotte,
North Carolina
|
+$6.64M |
| 5 |
Jane Street
New York
|
+$6.54M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
EAM
Eventide Asset Management
Boston,
Massachusetts
|
-$28.4M |
| 2 |
RCMNY
Rubric Capital Management (New York)
New York
|
-$8.65M |
| 3 |
RG
Redmile Group
San Francisco,
California
|
-$7.99M |
| 4 |
State Street
Boston,
Massachusetts
|
-$7.61M |
| 5 |
Point72 Asset Management
Stamford,
Connecticut
|
-$6.76M |
ARDX Hedge Fund Activity: Q1 2025 in Review
221 of the 7,472 institutional investors tracked by Wall St. Rank reported a position in Ardelyx (ARDX) for Q1 2025, worth a combined $809M — up 5.7% from $765M a quarter earlier.
Buyers outnumbered sellers: 42 funds opened new ARDX positions and 34 closed out — a net gain of 8 holders — while 90 added to existing stakes and 55 trimmed.
The largest buyer was Marshall Wace, adding an estimated $44.4M. The largest seller was Eventide Asset Management, exiting entirely with an estimated $28.4M sold.
- 221 institutional investors held Ardelyx (ARDX) as of Q1 2025, up from 214 in Q4 2024.
- Funds reported $809M of Ardelyx stock for Q1 2025, up 5.7% quarter-over-quarter.
- 42 funds opened new Ardelyx positions in Q1 2025 and 34 closed out, a net change of +8 holders.
- The largest Ardelyx buyer in Q1 2025 was Marshall Wace, an estimated $44.4M added.
- The largest Ardelyx seller in Q1 2025 was Eventide Asset Management, an estimated $28.4M sold.
Based on aggregated 13F filings for Q1 2025.