ARDELYX INC (ARDX) Institutional Ownership Changes & 13F Activity

ARDELYX INC (ARDX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Rubric Capital Management Lp, Millennium Management Llc, Citadel Advisors Llc, Freestone Grove Partners Lp, and J. Goldman & Co Lp.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
State Street CorpSell-248,179-1.8%13,356,128$68.12MQ2 2026Sep 22, 2026
Manufacturers Life Insurance Company, TheSell-2,217-2.1%104,922$535.10KQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcSell-2,209-13.7%13,956$71.18KQ2 2026Sep 09, 2026
Citadel Advisors LlcSell-2,434,600-70.3%1,030,174$5.25MQ2 2026Sep 02, 2026
California State Teachers Retirement SystemSell-7,502-2.5%295,635$1.51MQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+3,010+5.0%63,242$322.53KQ2 2026Aug 19, 2026
Rubric Capital Management LpBuy+14,341,804+770.7%16,202,700$82.63MQ2 2026Aug 14, 2026
Millennium Management LlcSell-3,941,597-22.1%13,900,773$70.89MQ2 2026Aug 14, 2026
Freestone Grove Partners LpSell-1,626,091-86.5%253,692$1.29MQ2 2026Aug 14, 2026
J. Goldman & Co LpSell-1,420,685-47.3%1,579,828$8.06MQ2 2026Aug 14, 2026
Nomura Asset Management International Inc.Buy+1,377,363+16.9%9,546,732$48.69MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+1,368,8681,368,868$6.98MQ2 2026Aug 14, 2026
Two Sigma Investments, LpBuy+935,780+21.9%5,209,823$26.57MQ2 2026Aug 14, 2026
Exoduspoint Capital Management, LpBuy+752,923752,923$3.84MQ2 2026Aug 14, 2026
Eversept Partners, LpSell-551,101-24.7%1,678,345$8.56MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+468,824+14.6%3,685,034$18.79MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdSell-344,873-14.2%2,090,675$10.66MQ2 2026Aug 14, 2026
Diadema Partners LpBuy+303,025303,025$1.55MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Sell-300,880-95.8%13,081$66.71KQ2 2026Aug 14, 2026
Monimus Capital Management, LpSell-248,164-55.9%195,611$997.62KQ2 2026Aug 14, 2026
Susquehanna International Group, LlpBuy+214,069+30.5%916,037$4.67MQ2 2026Aug 14, 2026
Rafferty Asset Management, LlcSell-201,691-49.5%206,163$1.05MQ2 2026Aug 14, 2026
Bank Of America CorpSell-173,494-7.4%2,163,500$11.03MQ2 2026Aug 14, 2026
Trexquant Investment LpSell-144,148-17.9%660,586$3.37MQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+137,431+96.1%280,470$1.43MQ2 2026Aug 14, 2026
Balyasny Asset Management L.P.Sell-123,623-61.7%76,598$390.65KQ2 2026Aug 14, 2026
Aqr Capital Management LlcSell-123,230-5.1%2,316,220$11.81MQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncBuy+97,662+4.6%2,211,760$11.28MQ2 2026Aug 14, 2026
Jones Financial Companies LllpSell-92,959-5.0%1,765,932$9.80MQ2 2026Aug 14, 2026
Redmile Group, LlcSell-91,600-12.5%641,750$3.27MQ2 2026Aug 14, 2026
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Frequently asked questions about ARDX activity

  • Which institutional owners are buying ARDX?

    Institutional owners buying ARDX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ARDX activity?

    "Buy" means an investor increased their reported position in ARDX compared to the prior reporting period. This reflects growing exposure to ARDELYX INC (ARDX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ARDX increasing?

    Institutional interest in ARDX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.