ARDXArdelyx, Inc.

$3.82

Who owns ARDX

234 institutions reported holding ARDX for 2026Q1, together 68% of the company, more than the 225 a quarter earlier.

234

Institutions reporting a position · as of 2026Q1 · up from 225 the quarter before

Shares held by institutions
167.9M

Shares held by institutions · 68% of the company · long US equity positions only, as reported on Form 13F

Reported value
$1.00B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
33%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
48
New positions
39
Positions exited
37
Added to
97
Reduced
56
Top 10 holdersof the company
44%
Institutional ownership by quarter, 2014Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q1234167.9M$1.00B
2025Q4225165.7M$966M
2025Q3220162.2M$960M
2025Q2204167.4M$656M
2025Q1220164.6M$809M
2024Q4211150.7M$764M
2024Q3201141.2M$972M
2024Q2195143.6M$1.06B
2024Q1188141.2M$1.03B
2023Q4161137.0M$849M
2023Q3149125.8M$513M
2023Q2146125.6M$426M
2023Q1128113.7M$545M
2022Q410380.3M$226M
2022Q38266.5M$79M
2022Q27537.1M$22M
Largest reported holders, 2026Q1
HolderShares% of companyValue
BlackRock Inc.21.2M8.6%$127M
VANGUARD GROUP INC19.1M7.8%$114M
MILLENNIUM MANAGEMENT LLC17.8M7.3%$107M
STATE STREET CORP13.6M5.5%$81M
HENDERSON GROUP PLC8.4M3.4%$50M
NOMURA HOLDINGS INC8.2M3.3%$49M
GEODE CAPITAL MANAGEMENT LLC6.0M2.4%$36M
Nuveen Asset Management, LLC5.2M2.1%$31M
TWO SIGMA INVESTMENTS, LP4.3M1.7%$26M
CITADEL ADVISORS LLC3.5M1.4%$21M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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