ARDX

SEC source: 0001628280-23-039905 · wk-form4_1700691669.xml · nonDerivative · entry 2

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Wife

Disclosed balance after: 113,293

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · ownership.nature: The shares are directly held by the Reporting Person's wife.

SEC source: 0001628280-23-039905 · wk-form4_1700691669.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 362,543

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001628280-23-039901 · wk-form4_1700691579.xml · nonDerivative · entry 1

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 867,868

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · balance_after: Reflects the adjusted total which includes the purchase of 3,000 shares under the Ardelyx Employee Stock Purchase Plan in August 2023.

SEC source: 0001628280-23-039900 · wk-form4_1700691550.xml · nonDerivative · entry 1

GRAMMER ELIZABETH A · CIK 0001213041 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 325,675

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001628280-23-039898 · wk-form4_1700691493.xml · nonDerivative · entry 1

Felsch Robert Ora · CIK 0001917819 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,066

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · balance_after: Reflects the adjusted total which includes the purchase of 3,000 shares under the Ardelyx Employee Stock Purchase Plan in August 2023.

SEC source: 0001628280-23-039528 · wk-form4_1700260214.xml · nonDerivative · entry 1

Williams Laura A · CIK 0001869194 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 266,839

F1 · price: This transaction was executed in multiple trades in prices ranging from $3.97 to $4.045, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-034296 · wk-form4_1697144972.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 365,378

F1 · kind: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on June 9, 2023

SEC source: 0001610717-23-000278 · form4.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 367,022

F1 · kind: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on June 9, 2023.

SEC source: 0001628280-23-030414 · wk-form4_1692823684.xml · nonDerivative · entry 1

Rodriguez Susan · CIK 0001812511 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 348,687

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · price: This transaction was executed in multiple trades in prices ranging from $3.511 to $3.551843, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-030412 · wk-form4_1692823583.xml · nonDerivative · entry 1

Williams Laura A · CIK 0001869194 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 291,839

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · price: This transaction was executed in multiple trades in prices ranging from $3.5135 to $3.551843, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-030395 · wk-form4_1692822970.xml · nonDerivative · entry 1

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 263,288

F1 · shares: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · price: This transaction was executed in multiple trades in prices ranging from $3.515 to $3.551843, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-030404 · wk-form4_1692823323.xml · nonDerivative · entry 1

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 333,849

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · price: This transaction was executed in multiple trades in prices ranging from $3.5135 to $3.551843, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-030408 · wk-form4_1692823491.xml · nonDerivative · entry 2

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Wife

Disclosed balance after: 111,225

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F3 · ownership.nature: The shares are directly held by the Reporting Person's wife.

SEC source: 0001628280-23-030408 · wk-form4_1692823491.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 369,919

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · price: This transaction was executed in multiple trades in prices ranging from $3.5103 to $3.551843, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-030402 · wk-form4_1692823266.xml · nonDerivative · entry 1

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 876,236

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · price: This transaction was executed in multiple trades in prices ranging from $3.511 to $3.551843, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-030399 · wk-form4_1692823171.xml · nonDerivative · entry 1

GRAMMER ELIZABETH A · CIK 0001213041 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 328,059

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · price: This transaction was executed in multiple trades in prices ranging from $3.511 to $3.551843, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-030397 · wk-form4_1692823075.xml · nonDerivative · entry 1

Felsch Robert Ora · CIK 0001917819 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,110

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001628280-23-023956 · wk-form4_1688080938.xml · nonDerivative · entry 1

Williams Laura A · CIK 0001869194 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 294,430

F1 · price: This transaction was executed in multiple trades in prices ranging from $3.331 to $3.365, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-023651 · wk-form4_1687905603.xml · derivative · entry 3

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 33,333 shares

Expires 2023-07-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction relates an option that would have expired on July 18, 2023 and does not result in a reduction of shares held outright by the Reporting Person. The shares acquired upon the exercise of the option were sold pursuant to a Rule 10b5-1 stock trading plan adopted by the Reporting Person on March 24, 2023. accordingly, the Reporting Person had no discretion with regard to the timing of the transaction.

F3 · derivative.exercise_date: The option, which was granted on July 18, 2013, and has an expiration date of July 18, 2023, is fully vested and exercisable.

SEC source: 0001628280-23-023651 · wk-form4_1687905603.xml · nonDerivative · entry 2

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 266,134

F1 · shares: This transaction relates an option that would have expired on July 18, 2023 and does not result in a reduction of shares held outright by the Reporting Person. The shares acquired upon the exercise of the option were sold pursuant to a Rule 10b5-1 stock trading plan adopted by the Reporting Person on March 24, 2023. accordingly, the Reporting Person had no discretion with regard to the timing of the transaction.

F2 · price: This transaction was executed in multiple trades in prices ranging from $3.62 to $3.70, inclusive. The price reported in Column 4 above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

SEC source: 0001628280-23-023651 · wk-form4_1687905603.xml · nonDerivative · entry 1

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 299,467

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: This transaction relates an option that would have expired on July 18, 2023 and does not result in a reduction of shares held outright by the Reporting Person. The shares acquired upon the exercise of the option were sold pursuant to a Rule 10b5-1 stock trading plan adopted by the Reporting Person on March 24, 2023. accordingly, the Reporting Person had no discretion with regard to the timing of the transaction.

SEC source: 0001628280-23-022557 · wk-form4_1686954661.xml · derivative · entry 2

Cadoret-Manier Onaiza · CIK 0001799355 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,237

Underlying: Common Stock · 49,237 shares

Expires 2033-06-15

F2 · shares: The option was issued pursuant to the Issuer's Non-Employee Director Compensation Program.

F3 · derivative.exercise_date: 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.

SEC source: 0001628280-23-022557 · wk-form4_1686954661.xml · nonDerivative · entry 1

Cadoret-Manier Onaiza · CIK 0001799355 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,150

F1 · shares: The shares were issued pursuant to the Issuer's Non-Employee Director Compensation Program. The Reporting Person elected to receive stock in lieu of cash as permitted under the program.

SEC source: 0001628280-23-022559 · wk-form4_1686954798.xml · derivative · entry 2

Lundberg Jan M · CIK 0001480120 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,237

Underlying: Common Stock · 49,237 shares

Expires 2033-06-15

F2 · shares: The option was issued pursuant to the Issuer's Non-Employee Director Compensation Program.

F3 · derivative.exercise_date: 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.

SEC source: 0001628280-23-022559 · wk-form4_1686954798.xml · nonDerivative · entry 1

Lundberg Jan M · CIK 0001480120 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 146,794

F1 · shares: The shares were issued pursuant to the Issuer's Non-Employee Director Compensation Program. The Reporting Person elected to receive stock in lieu of cash as permitted under the program.

SEC source: 0001628280-23-022560 · wk-form4_1686954854.xml · derivative · entry 1

Block Geoffrey A. · CIK 0001770782 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,237

Underlying: Common Stock · 49,237 shares

Expires 2033-06-15

F1 · shares: The option was issued pursuant to the Issuer's Non-Employee Director Compensation Program.

F2 · derivative.exercise_date: 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.

SEC source: 0001628280-23-022558 · wk-form4_1686954708.xml · derivative · entry 1

Bhanji Muna · CIK 0001846905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,237

Underlying: Common Stock · 49,237 shares

Expires 2033-06-15

F1 · shares: The option was issued pursuant to the Issuer's Non-Employee Director Compensation Program.

F2 · derivative.exercise_date: 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.

SEC source: 0001628280-23-022556 · wk-form4_1686954623.xml · derivative · entry 2

Rodgers Richard J · CIK 0001313397 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,237

Underlying: Common Stock · 49,237 shares

Expires 2033-06-15

F2 · shares: The option was issued pursuant to the Issuer's Non-Employee Director Compensation Program.

F3 · derivative.exercise_date: 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.

SEC source: 0001628280-23-022556 · wk-form4_1686954623.xml · nonDerivative · entry 1

Rodgers Richard J · CIK 0001313397 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 238,320

F1 · shares: The shares were issued pursuant to the Issuer's Non-Employee Director Compensation Program. The Reporting Person elected to receive stock in lieu of cash as permitted under the program.

SEC source: 0001628280-23-022555 · wk-form4_1686954576.xml · derivative · entry 2

Bertrand William C JR · CIK 0001291937 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,237

Underlying: Common Stock · 49,237 shares

Expires 2033-06-15

F2 · shares: The option was issued pursuant to the Issuer's Non-Employee Director Compensation Program.

F3 · derivative.exercise_date: 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.

SEC source: 0001628280-23-022555 · wk-form4_1686954576.xml · nonDerivative · entry 1

Bertrand William C JR · CIK 0001291937 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 218,743

F1 · shares: The shares were issued pursuant to the Issuer's Non-Employee Director Compensation Program. The Reporting Person elected to receive stock in lieu of cash as permitted under the program.

SEC source: 0001628280-23-022554 · wk-form4_1686954538.xml · derivative · entry 2

MOTT DAVID M · CIK 0001219871 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,237

Underlying: Common Stock · 49,237 shares

Expires 2033-06-15

F3 · shares: The option was issued pursuant to the Issuer's Non-Employee Director Compensation Program.

F4 · derivative.exercise_date: 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.

SEC source: 0001628280-23-022554 · wk-form4_1686954538.xml · nonDerivative · entry 1

MOTT DAVID M · CIK 0001219871 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,192,275

F1 · shares: The shares were issued pursuant to the Issuer's Non-Employee Director Compensation Program. The Reporting Person elected to receive stock in lieu of cash as permitted under the program.

F2 · balance_after: The Reporting Person holds 87,566 shares for the benefit of entities associated with New Enterprise Associates and disclaims beneficial ownership of such shares, except to the extent of his actual pecuniary interest therein.

SEC source: 0001628280-23-022552 · wk-form4_1686954498.xml · derivative · entry 1

Bazemore Robert B · CIK 0001620152 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,237

Underlying: Common Stock · 49,237 shares

Expires 2033-06-15

F1 · shares: The shares were issued pursuant to the Issuer's Non-Employee Director Compensation Program.

F2 · derivative.exercise_date: 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.

SEC source: 0001104659-23-064389 · tm2316962-3_4seq1.xml · nonDerivative · entry 1

Rodriguez Susan · CIK 0001812511 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 353,420

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · balance_after: Reflects the adjusted total which includes the purchase of 3,000 shares under the Ardelyx Employee Stock Purchase Plan in February 2023.

SEC source: 0001104659-23-064386 · tm2316962-1_4seq1.xml · nonDerivative · entry 1

Williams Laura A · CIK 0001869194 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 319,430

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · balance_after: Reflects the adjusted total which includes the purchase of 3,000 shares under the Ardelyx Employee Stock Purchase Plan in February 2023.

SEC source: 0001104659-23-064392 · tm2316962-5_4seq1.xml · nonDerivative · entry 1

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 266,134

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001104659-23-064390 · tm2316962-4_4seq1.xml · nonDerivative · entry 1

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 336,733

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · balance_after: Reflects the adjusted total which includes the purchase of 3,000 shares under the Ardelyx Employee Stock Purchase Plan in February 2023.

SEC source: 0001104659-23-064395 · tm2316962-8_4seq1.xml · nonDerivative · entry 1

Felsch Robert Ora · CIK 0001917819 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,158

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · balance_after: Reflects the adjusted total which includes the purchase of 3,000 shares under the Ardelyx Employee Stock Purchase Plan in February 2023.

SEC source: 0001104659-23-064394 · tm2316962-7_4seq1.xml · nonDerivative · entry 1

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 887,655

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · balance_after: Reflects the adjusted total which includes the purchase of 3,000 shares under the Ardelyx Employee Stock Purchase Plan in February 2023.

SEC source: 0001104659-23-064393 · tm2316962-6_4seq1.xml · nonDerivative · entry 1

GRAMMER ELIZABETH A · CIK 0001213041 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 330,451

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · balance_after: Reflects the adjusted total which includes the purchase of 2,881 shares under the Ardelyx Employee Stock Purchase Plan in February 2023.

SEC source: 0001104659-23-064388 · tm2316962-2_4seq1.xml · nonDerivative · entry 2

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Wife

Disclosed balance after: 112,162

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

F2 · ownership.nature: The shares are directly held by the Reporting Person's wife.

SEC source: 0001104659-23-064388 · tm2316962-2_4seq1.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 372,765

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001140361-23-015490 · form4.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Wife

Disclosed balance after: 113,096

F1 · balance_after: Reflects the adjusted total which includes the purchase of 3,000 shares under the Ardelyx Employee Stock Purchase Plan on February 28, 2023.

F2 · ownership.nature: The shares are directly held by the Reporting Person's wife.

SEC source: 0001567619-23-003774 · doc1.xml · nonDerivative · entry 1

Williams Laura A · CIK 0001869194 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 319,013

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001567619-23-003773 · doc1.xml · nonDerivative · entry 1

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 268,969

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001567619-23-003769 · doc1.xml · nonDerivative · entry 1

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 336,606

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001567619-23-003772 · doc1.xml · nonDerivative · entry 1

GRAMMER ELIZABETH A · CIK 0001213041 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 329,954

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001567619-23-003771 · doc1.xml · nonDerivative · entry 1

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 896,012

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.

SEC source: 0001567619-23-003770 · doc1.xml · nonDerivative · entry 1

Felsch Robert Ora · CIK 0001917819 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 114,204

F1 · kind: Pursuant to an automatic sell-to-cover imposed by the terms of the initial grant of the restricted stock units ("RSUs") awards, the shares were sold upon the vesting of the RSUs solely to cover applicable withholding taxes.