ARDX

SEC source: 0001610717-24-000228 · form4.xml · nonDerivative · entry 1

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,340,933

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: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 13, 2023.

SEC source: 0001610717-24-000211 · form4.xml · nonDerivative · entry 1

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,310,933

F1 · kind: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 13, 2023.

F2 · price: This transaction was executed in multiple trades in prices ranging from $7.015 to $7.09, 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: 0001610717-24-000199 · form4.xml · nonDerivative · entry 1

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,318,433

F1 · kind: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 13, 2023.

SEC source: 0001610717-24-000188 · form4.xml · derivative · entry 2

Kelliher Mike · CIK 0001987188 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 205,000

Underlying: Common Stock · 205,000 shares

Expires 2034-03-25

F2 · derivative.exercise_date: Twenty Five Percent (25%) of the shares subject to the option vest on March 25, 2025 and the remaining shares subject to the option vest in 36 successive, equal monthly installments thereafter, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001610717-24-000188 · form4.xml · nonDerivative · entry 1

Kelliher Mike · CIK 0001987188 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,000

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

SEC source: 0001610717-24-000182 · form4.xml · nonDerivative · entry 1

GRAMMER ELIZABETH A · CIK 0001213041 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 312,993

F1 · kind: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 20, 2023.

F2 · price: This transaction was executed in multiple trades in prices ranging from $7.65 to $7.92, 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: 0001610717-24-000183 · form4.xml · nonDerivative · entry 1

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 367,186

SEC source: 0001610717-24-000103 · 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: 175,936

F1 · ownership.nature: The shares are directly held by the Reporting Person's wife.

SEC source: 0001610717-24-000082 · form4.xml · nonDerivative · entry 1

Rodriguez Susan · CIK 0001812511 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 452,795

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: 0001610717-24-000080 · form4.xml · nonDerivative · entry 1

Williams Laura A · CIK 0001869194 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 380,138

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: 0001610717-24-000084 · form4.xml · nonDerivative · entry 1

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 368,186

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: 0001610717-24-000087 · form4.xml · nonDerivative · entry 1

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 304,835

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: 0001610717-24-000089 · form4.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: 181,119

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: 0001610717-24-000089 · form4.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 378,985

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: 0001610717-24-000085 · form4.xml · nonDerivative · entry 1

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,319,951

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: 0001610717-24-000083 · form4.xml · nonDerivative · entry 1

GRAMMER ELIZABETH A · CIK 0001213041 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 398,993

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: 0001610717-24-000081 · form4.xml · nonDerivative · entry 1

Felsch Robert Ora · CIK 0001917819 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 184,834

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: 0001610717-24-000050 · form4.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 384,002

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

F2 · price: This transaction was executed in multiple trades in prices ranging from $8.97 to $9.49, 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: 0001628280-24-001686 · wk-form4_1705613823.xml · derivative · entry 2

Rodriguez Susan · CIK 0001812511 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,000

Underlying: Common Stock · 145,000 shares

Expires 2034-01-16

F2 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 16, 2024, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001628280-24-001686 · wk-form4_1705613823.xml · nonDerivative · entry 1

Rodriguez Susan · CIK 0001812511 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 459,723

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

SEC source: 0001628280-24-001692 · wk-form4_1705613951.xml · derivative · entry 2

Williams Laura A · CIK 0001869194 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,127

Underlying: Common Stock · 152,127 shares

Expires 2034-01-16

F2 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 16, 2024, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001628280-24-001692 · wk-form4_1705613951.xml · nonDerivative · entry 1

Williams Laura A · CIK 0001869194 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 384,941

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

SEC source: 0001628280-24-001676 · wk-form4_1705613501.xml · derivative · entry 2

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,000

Underlying: Common Stock · 145,000 shares

Expires 2034-01-16

F2 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 16, 2024, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001628280-24-001676 · wk-form4_1705613501.xml · nonDerivative · entry 1

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 373,203

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

SEC source: 0001628280-24-001684 · wk-form4_1705613767.xml · derivative · entry 2

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 164,000

Underlying: Common Stock · 164,000 shares

Expires 2034-01-16

F2 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 16, 2024, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001628280-24-001684 · wk-form4_1705613767.xml · nonDerivative · entry 1

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 310,176

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

SEC source: 0001628280-24-001689 · wk-form4_1705613880.xml · derivative · entry 5

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Wife

Disclosed balance after: 99,000

Underlying: Common Stock · 99,000 shares

Expires 2034-01-16

F4 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 16, 2024, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

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

SEC source: 0001628280-24-001689 · wk-form4_1705613880.xml · derivative · entry 4

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,000

Underlying: Common Stock · 145,000 shares

Expires 2034-01-16

F4 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 16, 2024, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001628280-24-001689 · wk-form4_1705613880.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: 183,413

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

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

SEC source: 0001628280-24-001689 · wk-form4_1705613880.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 399,346

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

SEC source: 0001628280-24-001682 · wk-form4_1705613694.xml · derivative · entry 4

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 605,904

Underlying: Common Stock · 605,904 shares

Expires 2034-01-16

F4 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 16, 2024, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001628280-24-001682 · wk-form4_1705613694.xml · nonDerivative · entry 1

RAAB MICHAEL · CIK 0001321402 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,342,868

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

SEC source: 0001628280-24-001680 · wk-form4_1705613639.xml · derivative · entry 2

GRAMMER ELIZABETH A · CIK 0001213041 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 164,000

Underlying: Common Stock · 164,000 shares

Expires 2034-01-16

F2 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 16, 2024, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001628280-24-001680 · wk-form4_1705613639.xml · nonDerivative · entry 1

GRAMMER ELIZABETH A · CIK 0001213041 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 403,425

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

SEC source: 0001628280-24-001678 · wk-form4_1705613557.xml · derivative · entry 2

Felsch Robert Ora · CIK 0001917819 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,000

Underlying: Common Stock · 99,000 shares

Expires 2034-01-16

F2 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 16, 2024, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001628280-24-001678 · wk-form4_1705613557.xml · nonDerivative · entry 1

Felsch Robert Ora · CIK 0001917819 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 187,186

F1 · shares: Restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) shares of Common Stock for each one (1) RSU upon the vesting thereof.

SEC source: 0001628280-24-001059 · wk-form4_1704926150.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,596

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

F2 · price: This transaction was executed in multiple trades in prices ranging from $6.46 to $7.00, 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: 0001628280-23-042828 · wk-form4_1703803478.xml · derivative · entry 3

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 121,000

Underlying: Common Stock · 75,000 shares

Expires 2032-01-06

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: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on September 12, 2023.

F3 · derivative.exercise_date: The option becomes exercisable as it vests and the shares subject to the option vest in 48 successive, equal monthly installments on each monthly anniversary of January 6, 2022, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

SEC source: 0001628280-23-042828 · wk-form4_1703803478.xml · nonDerivative · entry 2

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 182,426

F1 · kind: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on September 12, 2023.

F2 · price: This transaction was executed in multiple trades in prices ranging from $6.28 to $6.45, 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: 0001628280-23-042828 · wk-form4_1703803478.xml · nonDerivative · entry 1

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 407,426

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: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on September 12, 2023.

SEC source: 0001628280-23-042268 · wk-form4_1703108983.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 316,596

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

SEC source: 0001628280-23-041699 · wk-form4_1702682026.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 322,271

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

SEC source: 0001628280-23-041479 · wk-form4_1702507443.xml · nonDerivative · entry 1

GRAMMER ELIZABETH A · CIK 0001213041 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 275,675

F1 · kind: Transaction made pursuant to a 10b5-1 trading plan adopted by the Reporting Person on March 24, 2023.

F2 · price: This transaction was executed in multiple trades in prices ranging from $4.99 to $5.27, 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: 0001628280-23-041167 · wk-form4_1702076302.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 329,271

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

F2 · price: This transaction was executed in multiple trades in prices ranging from $5.18 to $5.32, 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: 0001628280-23-040906 · wk-form4_1701899354.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 349,271

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

SEC source: 0001628280-23-040465 · wk-form4_1701467244.xml · nonDerivative · entry 1

Rosenbaum David P. · CIK 0001611311 · Chief Development Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 359,543

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

SEC source: 0001628280-23-039904 · wk-form4_1700691637.xml · nonDerivative · entry 1

Rodriguez Susan · CIK 0001812511 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 346,973

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: 0001628280-23-039907 · wk-form4_1700691709.xml · nonDerivative · entry 1

Williams Laura A · CIK 0001869194 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 266,191

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 1,933 shares under the Ardelyx Employee Stock Purchase Plan in August 2023.

SEC source: 0001628280-23-039897 · wk-form4_1700691463.xml · nonDerivative · entry 1

Blanks Robert · CIK 0001815433 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 260,453

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: 0001628280-23-039902 · wk-form4_1700691607.xml · nonDerivative · entry 1

Renz Justin A · CIK 0001466562 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 332,426

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 1,450 shares under the Ardelyx Employee Stock Purchase Plan in August 2023.