Ardelyx ownership update: Millennium group holds 7.4%

Ardelyx, Inc. Schedule 13G/A discloses passive institutional holdings by Millennium-related entities and Integrated Core Strategies.

Rhea-AI Filing Summary

Ardelyx, Inc. Schedule 13G/A discloses passive institutional holdings by Millennium-related entities and Integrated Core Strategies. Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander each report 18,043,970 shares (7.4%) and Integrated Core Strategies (US) LLC reports 17,721,732 shares (7.2%). The filing is a joint filing documented by a April 24, 2026 Joint Filing Agreement.

Insights

Corporate Governance Analyst

Institutional holdings disclosed, showing concentrated passive stakes.

The Schedule 13G/A lists shared voting and dispositive power for multiple Millennium-related entities: 18,043,970 shares (7.4%) and 17,721,732 shares (7.2%), indicating sizable passive positions.

These are joint-filed under a April 24, 2026 agreement; future filings could show changes in ownership if disposition or voting arrangements change.

Institutional Ownership Specialist

Filing clarifies who holds shared control and the filing vehicle.

The disclosure attributes shared voting and dispositive power across entities controlled by Millennium Management LLC and related managers, explaining the governance structure behind the reported percentages.

Watch for amendments or Schedule 13D if positions become active or cross any regulatory thresholds.

Key Figures

Millennium Management holdings: 18,043,970 shares Millennium stake percent: 7.4% Integrated Core Strategies holdings: 17,721,732 shares +2 more

5 metrics

Millennium Management holdings 18,043,970 shares reported by Millennium Management LLC / Millennium Group Management LLC / Israel A. Englander

Millennium stake percent 7.4% percent of class reported alongside 18,043,970 shares

Integrated Core Strategies holdings 17,721,732 shares reported by Integrated Core Strategies (US) LLC

Integrated Core stake percent 7.2% percent of class reported alongside 17,721,732 shares

Joint Filing Agreement date April 24, 2026 date of Joint Filing Agreement among filers

Key Terms

Schedule 13G/A, Joint Filing Agreement, Shared Dispositive Power, Shared Voting Power

4 terms

Schedule 13G/A regulatory

"Amendment No. 1 ) Ardelyx, Inc. Common Stock"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Joint Filing Agreement legal

"Joint Filing Agreement, dated as of April 24, 2026"

Shared Dispositive Power financial

"Shared Dispositive Power 17,721,732.00"

Shared Voting Power financial

"Shared Voting Power 18,043,970.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does Millennium Management report in Ardelyx (ARDX)?

Millennium Management LLC reports 18,043,970 shares, representing 7.4% of Ardelyx common stock. The filing attributes shared voting and dispositive power to Millennium-related entities under a joint filing dated April 24, 2026.

What does Integrated Core Strategies disclose in the ARDX 13G/A?

Integrated Core Strategies (US) LLC reports 17,721,732 shares, equal to 7.2% of the class. The schedule shows the position as shared voting and shared dispositive power held with Millennium-related managers.

Who signed the joint filing for the Ardelyx 13G/A?

The joint filing agreement is signed by Integrated Core Strategies (US) LLC, Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander. Signatures are dated April 24, 2026.

Does this Schedule 13G/A indicate active control or activist intent?

No; the filing is a Schedule 13G/A disclosure of passive holdings and joint filing status. It lists shared voting and dispositive power but does not assert an intent to influence management or a change to active control.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/27/2026 - 04:05 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Ardelyx, Inc.

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

039697107

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 039697107

1

Names of Reporting Persons

Integrated Core Strategies (US) LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 17,721,732.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 17,721,732.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

17,721,732.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.2 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 039697107

1

Names of Reporting Persons

Millennium Management LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,043,970.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,043,970.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

18,043,970.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.4 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 039697107

1

Names of Reporting Persons

Millennium Group Management LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,043,970.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,043,970.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

18,043,970.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.4 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 039697107

1

Names of Reporting Persons

Israel A. Englander

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,043,970.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,043,970.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

18,043,970.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.4 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Ardelyx, Inc.
(b)	Address of issuer's principal executive offices: 400 Fifth Avenue, Suite 210, Waltham, Massachusetts 02451
Item 2.
(a)	Name of person filing: Integrated Core Strategies (US) LLC Millennium Management LLC Millennium Group Management LLC Israel A. Englander
(b)	Address or principal business office or, if none, residence: Integrated Core Strategies (US) LLC c/o Millennium Management LLC 399 Park Avenue New York, New York 10022 Millennium Management LLC 399 Park Avenue New York, New York 10022 Millennium Group Management LLC 399 Park Avenue New York, New York 10022 Israel A. Englander c/o Millennium Management LLC 399 Park Avenue New York, New York 10022
(c)	Citizenship: Integrated Core Strategies (US) LLC - Delaware Millennium Management LLC - Delaware Millennium Group Management LLC - Delaware Israel A. Englander - United States
(d)	Title of class of securities: Common Stock, par value $0.0001 per share
(e)	CUSIP No.: 039697107
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: See response to Item 9 on each cover page.
(b)	Percent of class: See response to Item 11 on each cover page.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See response to Item 5 on each cover page.
	(ii) Shared power to vote or to direct the vote: See response to Item 6 on each cover page.
	(iii) Sole power to dispose or to direct the disposition of: See response to Item 7 on each cover page.
	(iv) Shared power to dispose or to direct the disposition of: See response to Item 8 on each cover page. The securities disclosed herein as potentially beneficially owned by Millennium Management LLC, Millennium Group Management LLC and Mr. Englander are held by entities subject to voting control and investment discretion by Millennium Management LLC and/or other investment managers that may be controlled by Millennium Group Management LLC (the managing member of Millennium Management LLC) and Mr. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). The foregoing should not be construed in and of itself as an admission by Millennium Management LLC, Millennium Group Management LLC or Mr. Englander as to beneficial ownership of the securities held by such entities.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. See Exhibit I
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Integrated Core Strategies (US) LLC

Signature:	/s/ Gil Raviv
Name/Title:	Gil Raviv, Global General Counsel
Date:	04/24/2026

Millennium Management LLC

Signature:	/s/ Gil Raviv
Name/Title:	Gil Raviv, Global General Counsel
Date:	04/24/2026

Millennium Group Management LLC

Signature:	/s/ Gil Raviv
Name/Title:	Gil Raviv, Global General Counsel
Date:	04/24/2026

Israel A. Englander

Signature:	/s/ Israel A. Englander
Name/Title:	Israel A. Englander
Date:	04/24/2026

Comments accompanying signature: ** INTEGRATED CORE STRATEGIES (US) LLC By: Integrated Holding Group LP, its Managing Member By: Millennium Management LLC, its General Partner

Exhibit Information

Exhibit I: Joint Filing Agreement, dated as of April 24, 2026, by and among Integrated Core Strategies (US) LLC, Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander.