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ARDX — ARDELYX INC

Reported value held$554.89M
Funds holding (latest)40
SectorHealth Care
Funds holding (Q2 2026)35
Institutional value$367.78M · 72.45M sh
New / Add / Cut / Exit2 / 17 / 15 / 3
Top-5 / Top-10 concentration73.6% / 89.4%
Institutional holdings change Reducing -15.6% (-13.39M sh)
Institutional value change Down -28.2%

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.

FundQuarterSharesValuePortfolio WeightChange
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

View all 40 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 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

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