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Who owns Ardelyx (ARDX) stock

238 funds reported Ardelyx (ARDX) shares in their latest 13F filings, worth $1.1B in all. The largest holder is BlackRock ($120M). Last quarter 120 funds added to their stakes and 110 cut them.

Largest holders of ARDX (13F)Largest holders of ARDX (13F)BlackRock$120MVanguard Group$111MRubric Capital Management LP$82.6MMillennium Management LLC$70.9MState Street$68.1MVanguard Capital Management LLC$53.4MJanus Henderson Group$50.1MNomura Asset Management Internati…$48.7MVanguard Portfolio Management LLC$40.9MGeode Capital Management, LLC$32.7M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock23,504,630$120Mincrease2026-06-30
Vanguard Group18,979,483$111Mincrease2025-12-31
Rubric Capital Management LP16,202,700$82.6Mincrease2026-06-30
Millennium Management LLC13,900,773$70.9Mdecrease2026-06-30
State Street13,356,128$68.1Mdecrease2026-06-30
Vanguard Capital Management LLC10,471,494$53.4Mincrease2026-06-30
Janus Henderson Group8,371,234$50.1Mdecrease2026-03-31
Nomura Asset Management International9,546,732$48.7Mincrease2026-06-30
Vanguard Portfolio Management LLC8,026,774$40.9Mincrease2026-06-30
Geode Capital Management, LLC6,401,736$32.7Mincrease2026-06-30
Jupiter Topco LLC5,302,311$27.0Mbase2026-06-30
Two Sigma Investments, LP5,209,823$26.6Mincrease2026-06-30
Nuveen, LLC3,997,099$20.4Mdecrease2026-06-30
Goldman Sachs Group3,685,034$18.8Mincrease2026-06-30
Morgan Stanley2,389,546$12.2Mincrease2026-06-30

Ardelyx's latest quarter

Ardelyx, Q3 2026: revenue $128M (+16% year over year), operating margin 3.2%, net loss $737K, operating cash flow $2.2M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most ARDX stock?

By the latest 13F filings: BlackRock ($120M); Vanguard Group ($111M); Rubric Capital Management LP ($82.6M); Millennium Management LLC ($70.9M); State Street ($68.1M).

What is the short interest in ARDX?

30,237,216 shares were sold short at the 2026-10-15 settlement, 9.25% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.