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  4. [Form 4] ARDELYX, INC. Insider Trading Activity

Ardelyx (ARDX) director Robert Bazemore receives RSU and option awards

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

ARDELYX, INC. director Robert B. Bazemore received equity compensation consisting of both shares and options. He was granted 26,455 restricted stock units, each convertible into one share of common stock upon vesting under the Non-Employee Director Compensation Program, bringing his direct holdings to 68,006 shares. He also received a stock option for 39,715 shares at an exercise price of $5.67 per share, vesting in 12 monthly installments and expiring on June 16, 2036, with unvested portions accelerating at the next annual stockholders’ meeting if he continues in service.

Positive

  • None.

Negative

  • None.
Insider Bazemore Robert B
Role null
Type Security Shares Price Value
Grant/Award Stock Option (Right to Buy) 39,715 $0.00 --
Grant/Award Common Stock 26,455 $0.00 --
Holdings After Transaction: Stock Option (Right to Buy) — 39,715 shares (Direct, null); Common Stock — 68,006 shares (Direct, null)
Footnotes (1)
  1. Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) share of Common Stock for each one (1) RSU upon the vesting thereof. The RSUs were issued pursuant to the Issuer's Non-Employee Director Compensation Program. The option was issued pursuant to the Issuer's Non-Employee Director Compensation Program. The option vests with respect to 1/12th of the shares subject thereto on each monthly anniversary of the grant date, which vesting will accelerate in full on the date of the next annual stockholder's meeting to the extent unvested as of such date, subject to continued service through each applicable vesting date.
RSU grant 26,455 units Restricted stock units granted to director on June 16, 2026
Option grant size 39,715 shares Stock option (right to buy) underlying common shares
Option exercise price $5.67 per share Conversion or exercise price for new stock option grant
Option expiration June 16, 2036 Expiration date of stock option granted to director
Shares owned after grant 68,006 shares Total common stock directly held following RSU grant
Restricted stock units ("RSUs") financial
"Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) share of Common Stock for each one (1) RSU"
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
Non-Employee Director Compensation Program financial
"The RSUs were issued pursuant to the Issuer's Non-Employee Director Compensation Program."
Stock Option (Right to Buy) financial
"Stock Option (Right to Buy)"
vesting financial
"The option vests with respect to 1/12th of the shares subject thereto on each monthly anniversary of the grant date"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Bazemore Robert B
(Last)(First)(Middle)
C/O ARDELYX, INC.
400 FIFTH AVENUE, SUITE 210
(Street)
WALTHAM MASSACHUSETTS 02451
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
ARDELYX, INC. [ ARDX ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock06/16/2026A26,455(1)A$068,006D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$5.6706/16/2026A39,715(2) (3)06/16/2036Common Stock39,715$039,715D
Explanation of Responses:
1. Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) share of Common Stock for each one (1) RSU upon the vesting thereof. The RSUs were issued pursuant to the Issuer's Non-Employee Director Compensation Program.
2. The option was issued pursuant to the Issuer's Non-Employee Director Compensation Program.
3. The option vests with respect to 1/12th of the shares subject thereto on each monthly anniversary of the grant date, which vesting will accelerate in full on the date of the next annual stockholder's meeting to the extent unvested as of such date, subject to continued service through each applicable vesting date.
Remarks:
Ex. 24.1 - Power of Attorney
/s/ Felecia Ettenberg, Attorney-in-Fact for Robert B. Bazemore06/18/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did ARDX director Robert Bazemore report on this Form 4?

Director Robert Bazemore reported receiving equity compensation, not open-market trades. He was granted 26,455 restricted stock units and a stock option covering 39,715 shares, both under Ardelyx’s Non-Employee Director Compensation Program, increasing his direct common stock holdings to 68,006 shares.

How many ARDX shares does Robert Bazemore hold after these grants?

After the reported equity grants, Robert Bazemore directly holds 68,006 shares of Ardelyx common stock. This total reflects the addition of 26,455 restricted stock units granted on the transaction date, which each convert into one share upon vesting under the program’s terms.

What are the key terms of Robert Bazemore’s new ARDX stock option grant?

Bazemore received a stock option for 39,715 ARDX shares at a $5.67 exercise price, expiring June 16, 2036. The option vests in equal monthly installments over 12 months, with any remaining unvested portion accelerating at the next annual stockholders’ meeting if he continues service.

Are Robert Bazemore’s ARDX Form 4 transactions open-market buys or compensation awards?

The transactions are compensation awards, not open-market purchases or sales. Both the 26,455 restricted stock units and the 39,715-share stock option were granted under Ardelyx’s Non-Employee Director Compensation Program, reflecting routine equity-based director compensation rather than trading activity in the market.

How do the new ARDX restricted stock units for Robert Bazemore vest?

Each of the 26,455 restricted stock units converts into one ARDX common share upon vesting. They were issued under the Non-Employee Director Compensation Program, which grants RSUs as part of director pay; vesting occurs per program terms tied to continued board service over time.