Rock Springs Capital Management’s Ardelyx ARDX Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $11.4M | Sell |
2,241,769
-57,704
| -3% | -$352K | 0.56% | 51 |
|
|
2026
Q1 | $13.8M | Hold |
2,299,473
| – | – | 0.81% | 41 |
|
|
2025
Q4 | $13.4M | Buy |
2,299,473
+13,200
| +0.6% | +$73.5K | 0.69% | 44 |
|
|
2025
Q3 | $12.6M | Hold |
2,286,273
| – | – | 0.74% | 48 |
|
|
2025
Q2 | $8.96M | Buy |
2,286,273
+681,298
| +42% | +$2.81M | 0.56% | 55 |
|
|
2025
Q1 | $7.88M | Buy |
1,604,975
+141,346
| +10% | +$759K | 0.45% | 56 |
|
|
2024
Q4 | $7.42M | Buy |
+1,463,629
| New | +$8.09M | 0.28% | 69 |
|
|
2021
Q3 | – | Sell |
-5,248,829
| Closed | -$39.8M | – | 157 |
|
|
2021
Q2 | $39.8M | Buy |
5,248,829
+72,268
| +1% | +$534K | 0.79% | 42 |
|
|
2021
Q1 | $34.3M | Buy |
5,176,561
+28,449
| +0.6% | +$195K | 0.75% | 46 |
|
|
2020
Q4 | $33.3M | Buy |
5,148,112
+71,245
| +1% | +$423K | 0.71% | 49 |
|
|
2020
Q3 | $26.7M | Buy |
5,076,867
+61,758
| +1% | +$371K | 0.68% | 46 |
|
|
2020
Q2 | $34.7M | Buy |
5,015,109
+165,109
| +3% | +$1.15M | 0.95% | 43 |
|
|
2020
Q1 | $27.6M | Hold |
4,850,000
| – | – | 1.14% | 35 |
|
|
2019
Q4 | $36.4M | Buy |
4,850,000
+1,794,739
| +59% | +$10.9M | 1.15% | 25 |
|
|
2019
Q3 | $14.4M | Buy |
3,055,261
+1,055,261
| +53% | +$3.67M | 0.57% | 58 |
|
|
2019
Q2 | $5.38M | Hold |
2,000,000
| – | – | 0.19% | 99 |
|
|
2019
Q1 | $5.6M | Hold |
2,000,000
| – | – | 0.22% | 106 |
|
|
2018
Q4 | $3.58M | Sell |
2,000,000
-525,557
| -21% | -$1.55M | 0.17% | 110 |
|
|
2018
Q3 | $11M | Hold |
2,525,557
| – | – | 0.4% | 81 |
|
|
2018
Q2 | $9.35M | Buy |
2,525,557
+250,000
| +11% | +$1.16M | 0.36% | 89 |
|
|
2018
Q1 | $11.5M | Hold |
2,275,557
| – | – | 0.49% | 72 |
|
|
2017
Q4 | $15M | Buy |
2,275,557
+275,557
| +14% | +$1.63M | 0.68% | 53 |
|
|
2017
Q3 | $11.2M | Hold |
2,000,000
| – | – | 0.52% | 66 |
|
|
2017
Q2 | $10.2M | Hold |
2,000,000
| – | – | 0.52% | 61 |
|
|
2017
Q1 | $25.3M | Hold |
2,000,000
| – | – | 1.46% | 22 |
|
|
2016
Q4 | $28.4M | Buy |
2,000,000
+25,000
| +1% | +$355K | 1.9% | 14 |
|
|
2016
Q3 | $25.6M | Buy |
1,975,000
+700,000
| +55% | +$7.33M | 1.6% | 22 |
|
|
2016
Q2 | $11.1M | Buy |
1,275,000
+214,600
| +20% | +$1.75M | 0.82% | 39 |
|
|
2016
Q1 | $8.24M | Buy |
1,060,400
+377,900
| +55% | +$3.72M | 0.69% | 44 |
|
|
2015
Q4 | $12.4M | Buy |
682,500
+1,000
| +0.1% | +$18.6K | 0.94% | 34 |
|
|
2015
Q3 | $11.8M | Buy |
681,500
+71,500
| +12% | +$1.33M | 0.96% | 33 |
|
|
2015
Q2 | $9.74M | Buy |
+610,000
| New | +$7.69M | 0.71% | 47 |
|
Other funds holding ARDX
RCMNY
NAMI
JT
Rock Springs Capital Management's ARDX Position: Q2 2026 in Review
Rock Springs Capital Management reduced its Ardelyx (ARDX) stake by 2.5% in Q2 2026, selling an estimated $352K and leaving 2,241,769 shares worth $11.4M. The position accounts for 0.56% of the portfolio, ranked #51.
Rock Springs Capital Management first reported a position in ARDX in Q2 2015 and has held it in 32 quarters since. The position peaked at $39.8M in Q2 2021. 249 funds tracked by Wall St. Rank hold ARDX as of Q2 2026.
- Rock Springs Capital Management held 2,241,769 shares of Ardelyx worth $11.4M as of Q2 2026.
- Rock Springs Capital Management sold 57,704 Ardelyx shares in Q2 2026, an estimated $352K.
- Ardelyx made up 0.56% of Rock Springs Capital Management's portfolio in Q2 2026, its #51 holding.
- Rock Springs Capital Management first reported a position in Ardelyx in Q2 2015 and has held it in 32 quarters since.
- Rock Springs Capital Management's Ardelyx position peaked at $39.8M in Q2 2021.
- 249 funds tracked by Wall St. Rank held Ardelyx as of Q2 2026.
Based on Rock Springs Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.