ARDX — ARDELYX INC
As of Q2 2026, 35 SEC-registered investment managers reported holding ARDX (ARDELYX INC) in their latest 13F filings, with a combined reported value of $367.78M across 72.45M shares. That is -15.6% by share count (-13.39M shares) versus the previous quarter, while reported value moved -28.2%. Ownership is concentrated: the five largest holders account for 73.6% of reported value and the top ten for 89.4%.
Compared with the prior quarter, 2 opened new positions, 17 added to existing stakes, 15 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
ARDX is classified in the Health Care sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| BlackRock Inc history | Q2 2026 | 23.50M | $119.87M | 0.00% | Add |
| Vanguard Group history | Q4 2025 | 18.98M | $110.65M | 0.00% | Add |
| Millennium Management history | Q2 2026 | 14.27M | $72.79M | 0.03% | Reduce |
| Janus Henderson Group history | Q1 2026 | 8.37M | $50.14M | 0.03% | Reduce |
| Geode Capital Management history | Q2 2026 | 6.40M | $32.66M | 0.00% | Add |
| Two Sigma Investments history | Q2 2026 | 5.21M | $26.57M | 0.02% | Add |
| Goldman Sachs Group history | Q2 2026 | 3.69M | $18.79M | 0.00% | Add |
| Point72 Asset Management history | Q1 2026 | 2.98M | $17.88M | 0.02% | Add |
| Morgan Stanley history | Q2 2026 | 2.39M | $12.19M | 0.00% | Add |
| AQR Capital Management history | Q2 2026 | 2.32M | $11.81M | 0.00% | Reduce |
| Northern Trust Corp history | Q2 2026 | 2.28M | $11.63M | 0.00% | Add |
| Charles Schwab Investment Management history | Q2 2026 | 2.21M | $11.28M | 0.00% | Add |
| Bank of America Corp history | Q2 2026 | 2.16M | $11.03M | 0.00% | Reduce |
| Arrowstreet Capital history | Q4 2025 | 1.42M | $8.31M | 0.01% | Add |
| Citadel Advisors history | Q2 2026 | 1.42M | $7.24M | 0.00% | Reduce |
| Invesco Ltd history | Q2 2026 | 1.37M | $6.98M | 0.00% | Add |
| Renaissance Technologies history | Q2 2026 | 892.59K | $4.55M | 0.01% | Reduce |
| Deutsche Bank AG history | Q2 2026 | 770.91K | $3.93M | 0.00% | Add |
| BNY Mellon history | Q2 2026 | 749.68K | $3.82M | 0.00% | Add |
| UBS Group AG history | Q2 2026 | 551.72K | $2.81M | 0.00% | Reduce |
New Positions (Q2 2026)
- JPMorgan Chase & Co 225.80K sh · $1.24M
- MFS Investment Management 36.76K sh · $187.49K
Fully Exited (vs previous quarter)
- Janus Henderson Group sold 8.37M sh · $50.14M
- Point72 Asset Management sold 2.98M sh · $17.88M
- Farallon Capital Management sold 23.00K sh · $137.77K
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 17.83M | 18.52M | 17.95M | 20.75M | 20.82M | 21.14M | 21.16M | 23.50M |
| Millennium Management | 906.84K | 177.49K | 818.89K | 1.55M | 948.04K | 10.63M | 11.12M | 6.98M | 3.21M | — | 1.32M | 3.20M | 4.01M | 2.96M | 6.47M | 11.72M | 7.67M | 12.00M | 18.04M | 14.27M |
| Geode Capital Management | 1.77M | 1.36M | 1.67M | 908.34K | 1.44M | 1.73M | 1.98M | 4.22M | 4.46M | 5.00M | 5.21M | 5.47M | 5.49M | 5.51M | 5.67M | 5.67M | 5.76M | 5.83M | 6.01M | 6.40M |
| Two Sigma Investments | 850.97K | — | — | — | — | 2.34M | 2.85M | 920.27K | 423.74K | 469.29K | 2.56M | 2.01M | 984.36K | 1.14M | 1.01M | 2.02M | 2.49M | 2.87M | 4.27M | 5.21M |
| Goldman Sachs Group | 530.17K | 606.45K | 272.38K | 334.31K | 16.05K | 392.17K | 1.66M | 1.40M | 1.27M | 1.10M | 2.14M | 2.92M | 2.37M | 2.16M | 2.38M | 4.00M | 2.58M | 3.06M | 3.22M | 3.69M |
| Morgan Stanley | 2.28M | 1.83M | 285.07K | 397.42K | 691.46K | 1.41M | 1.54M | 1.44M | 3.14M | 3.21M | 2.41M | 3.05M | 3.13M | 2.42M | 3.21M | 2.34M | 2.89M | 2.36M | 1.71M | 2.39M |
| AQR Capital Management | — | — | — | 20.12K | — | — | — | 68.37K | 61.91K | 88.32K | 169.53K | 416.35K | 618.58K | 545.25K | 1.57M | 2.31M | 2.14M | 2.03M | 2.44M | 2.32M |
| Northern Trust Corp | 843.09K | 820.62K | 827.12K | 196.70K | 268.54K | 369.46K | 471.04K | 1.95M | 1.96M | 2.19M | 2.15M | 2.08M | 2.10M | 2.15M | 2.17M | 2.12M | 2.12M | 2.02M | 2.07M | 2.28M |
| Charles Schwab Investment Management | 183.26K | 259.42K | 259.42K | 50.00K | 50.00K | 81.97K | 81.97K | 583.71K | 1.67M | 1.82M | 1.85M | 1.90M | 1.94M | 2.04M | 2.07M | 2.20M | 2.19M | 2.12M | 2.11M | 2.21M |
| Bank of America Corp | 825.34K | 42.04K | 492.67K | 263.93K | 250.70K | 160.74K | 2.08M | 2.68M | 1.24M | 718.26K | 1.27M | 2.02M | 1.16M | 2.14M | 2.93M | 5.53M | 2.65M | 2.21M | 2.34M | 2.16M |
| Citadel Advisors | 400.85K | 545.64K | 208.00K | 628.87K | 453.83K | 858.49K | 823.49K | 502.57K | 636.79K | 780.00K | 1.07M | 943.43K | 3.04M | 3.26M | 3.80M | 2.88M | 2.10M | 1.78M | 3.76M | 1.42M |
| Invesco Ltd | 38.78K | 30.19K | 29.90K | — | — | 17.17K | 1.13M | 118.25K | 1.36M | 2.33M | 115.30K | 112.57K | 114.43K | 124.94K | 177.53K | 229.68K | 257.81K | 317.41K | 312.71K | 1.37M |
| Renaissance Technologies | — | 2.04M | 1.30M | 208.99K | 254.25K | 449.69K | 3.14M | 1.85M | 1.19M | — | — | — | — | — | 1.35M | 1.30M | 1.69M | 1.79M | 1.27M | 892.59K |
| Deutsche Bank AG | 867.17K | 967.46K | 860.87K | 810.10K | 810.10K | 810.10K | 900.90K | 1.13M | 1.15M | 1.13M | 1.33M | 1.45M | 261.65K | 327.90K | 307.89K | 170.57K | 194.00K | 500.19K | 708.59K | 770.91K |
| BNY Mellon | 298.80K | 303.67K | 549.82K | 314.78K | 363.31K | 361.14K | 361.69K | 1.05M | 975.01K | 1.06M | 965.76K | 910.92K | 716.51K | 714.98K | 710.60K | 725.16K | 739.39K | 723.16K | 700.78K | 749.68K |
| UBS Group AG | 7.70K | 35.38K | 4.90K | 4.80K | 4.80K | 127.05K | 578.05K | 586.12K | 222.36K | 598.65K | 884.50K | 474.44K | 522.42K | 714.76K | 821.19K | 887.93K | 461.32K | 578.34K | 688.65K | 551.72K |
| Citigroup Inc | 26.52K | 36.41K | 14.15K | 32.37K | 1.30K | 53.74K | 1.29M | 645.18K | 469.13K | 555.58K | 943.49K | 145.09K | 174.83K | 432.53K | 488.84K | 165.25K | 51.28K | 61.82K | 66.14K | 311.02K |
| Wells Fargo & Co | 112.23K | 93.59K | 58.87K | 38.31K | 34.98K | 28.73K | 286.43K | 466.51K | 285.33K | 106.27K | 116.58K | 884.16K | 323.64K | 162.66K | 166.35K | 176.35K | 201.24K | 318.41K | 143.04K | 280.47K |
| JPMorgan Chase & Co | 39.79K | 32.65K | 45.43K | 108 | 108 | 1.35M | 1.14M | 1.37M | 1.35M | 354.26K | 244.06K | 381.05K | 387.14K | 234.67K | 251.64K | 2.00K | 2.00K | 2.00K | — | 225.80K |
| Franklin Resources | — | — | 304.80K | 206.33K | 208.81K | 208.81K | 153.00K | 161.20K | 176.60K | 176.62K | 158.60K | 186.06K | 104.21K | 104.21K | 104.21K | 87.11K | 756.13K | 154.70K | 185.25K | 201.44K |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details