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Ardelyx, Inc.

ARDX
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001437402

In the last 90 days, Ardelyx, Inc. insiders filed 0 open-market purchases and 9 sales; 250 institutions reported holding it in 13F filings for Q2 2026, worth $906.4M in total; no superinvestor holds it.

Q1 2026 vs. Q4 2025

How the institutions holding Ardelyx, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of ARDX: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders2295242+18
Shares166.9M20.9M169.6M+23.6M (+16.2%)
Value$972.9M$121.7M$1.01B+$163.2M (+19.2%)

5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (50)

Institutions that held Ardelyx, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to ARDX in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Capital Management LLC10,365,512$62.1M0.00%
Vanguard Portfolio Management LLC6,661,693$39.9M0.00%
Rubric Capital Management LP1,860,896$11.1M0.14%
Vanguard Fiduciary Trust Co1,678,111$10.1M0.00%
Redmile Group, LLC733,350$4.39M0.29%
Sector Gamma AS516,131$3.09M0.73%
Krensavage Asset Management, LLC500,000$3.00M1.17%
Ishara Investments LP451,000$2.70M2.73%
HRT Financial LP325,124$1.95M0.00%
Knott David M Jr207,000$1.24M0.74%
Carrera Capital Advisors191,144$1.14M0.18%
Vanguard Asset Management, Ltd166,521$997.5K0.00%
Sectoral Asset Management Inc122,394$781.1K0.65%
Vanguard Global Advisers, LLC112,904$676.3K0.00%
State of New Jersey Common Pension Fund D83,038$497.4K0.00%
PSP Research LLC80,000$479.2K0.34%
Vanguard Investments Australia, Ltd.61,084$365.9K0.00%
Virtu Financial LLC56,057$336.0K0.01%
Quarry LP55,000$329.4K0.07%
DRW Securities, LLC53,820$322.4K0.02%
E Fund Management Co., Ltd.51,268$307.1K0.01%
Schonfeld Strategic Advisors LLC39,299$235.4K0.00%
Blueshift Asset Management, LLC30,404$182.1K0.06%
LightSquare Wealth Management, LLC28,229$169.1K0.13%
IMC-Chicago, LLC24,723$148.1K0.00%
ADAR1 Capital Management, LLC23,900$143.2K0.01%
Leonteq Securities AG18,000$142.7K0.01%
Entropy Technologies, LP23,145$138.6K0.01%
Magnetar Financial LLC19,806$118.6K0.00%
Scientech Research LLC17,799$106.6K0.09%
Brighton Jones LLC15,035$90.1K0.00%
Susquehanna Portfolio Strategies, LLC14,396$86.2K0.00%
Amundi14,282$85.5K0.00%
Gotham Asset Management, LLC13,455$80.6K0.00%
Chicago Partners Investment Group LLC12,695$76.4K0.00%
CIBC Bancorp USA Inc.12,067$72.3K0.00%
Richmond Investment Services, LLC12,000$71.9K0.01%
Krilogy Financial LLC11,124$69.9K0.00%
PVG Asset Management Corp11,393$64.8K0.04%
JustInvest LLC10,810$64.8K0.00%
Buckingham Strategic Partners10,264$61.5K0.00%
US Bancorp5,058$30.3K0.00%
Exchange Traded Concepts, LLC3,573$21.4K0.00%
Fifth Third Bancorp924$5.54K0.00%
Aster Capital Management (DIFC) Ltd509$2.50K0.00%
Hilton Head Capital Partners, LLC409$2.45K0.00%
Basecamp Wealth Advisors LLC210$1.26K0.00%
JPL Wealth Management, LLC110$6590.00%
Gen-Wealth Partners Inc100$5990.00%
Versant Capital Management, Inc34$2040.00%

Sold out (32)

Institutions that held Ardelyx, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of ARDX in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Arrowstreet Capital, Limited Partnership1,424,878$8.31M
Two Sigma Advisers, LP1,348,700$7.86M
AIGH Capital Management LLC1,150,000$6.70M
Panagora Asset Management Inc659,160$3.84M
Diadema Partners LP252,198$1.47M
Walleye Capital LLC221,308$1.29M
Jump Financial, LLC199,470$1.16M
Mackenzie Financial Corp199,550$1.16M
Harbor Capital Advisors, Inc.153,825$897.0K
Algert Global LLC134,206$782.4K
Dynamic Technology Lab Private Ltd81,845$477.0K
GK Wealth Management LLC74,568$434.7K
Quadrature Capital Ltd63,566$370.6K
Persistent Asset Partners Ltd60,490$352.7K
ExodusPoint Capital Management, LP55,731$324.9K
VARCOV Co.45,004$262.4K
Sig Brokerage, LP31,891$185.9K
Fox Run Management, L.L.C.29,362$171.2K
Abel Hall, LLC15,847$92.4K
Winton Group Ltd13,500$78.7K
Chicago Trust Co NA13,200$77.0K
Two Sigma Securities, LLC11,001$64.1K
R Squared Ltd10,788$62.9K
Palisades Investment Partners, LLC10,147$59.2K
Cyndeo Wealth Partners, LLC10,000$58.3K
Amalgamated Bank7,529$44.0K
Kemnay Advisory Services Inc.2,621$15.3K
Torren Management, LLC1,419$8.27K
Garner Asset Management Corp1,000$5.83K
Daiwa Securities Group Inc.754$4.00K
Clearstead Advisors, LLC33$193
Concord Wealth Partners8$47

Not filed for Q1 2026 yet (5)

Institutions that held Ardelyx, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ARDX in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc18,979,483$110.7M
Oracle Investment Management Inc1,872,624$10.9M
CIBC World Markets Corp15,854$92.4K
Comerica Bank985$5.74K
Global Retirement Partners, LLC118$688