ASIX

SEC source: 0001673985-25-000022 · wk-form4_1741125767.xml · nonDerivative · entry 2

SLIETER KELLY · CIK 0001815987 · SVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,968

F2 · shares: Grant of restricted stock units pursuant to the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated, which are scheduled to vest in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001673985-25-000022 · wk-form4_1741125767.xml · nonDerivative · entry 1

SLIETER KELLY · CIK 0001815987 · SVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,895

F1 · shares: Shares withheld to satisfy tax withholding obligations related to Restricted Stock Units that vested on February 28, 2025.

SEC source: 0001673985-25-000018 · wk-form4_1741125381.xml · nonDerivative · entry 2

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 545,447

F2 · shares: Grant of restricted stock units pursuant to the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated, which are scheduled to vest in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001673985-25-000018 · wk-form4_1741125381.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 480,582

F1 · shares: Shares withheld to satisfy tax withholding obligations related to Restricted Stock Units that vested on February 28, 2025.

SEC source: 0001673985-25-000020 · wk-form4_1741125603.xml · nonDerivative · entry 3

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,521

F3 · shares: Grant of restricted stock units pursuant to the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated, which will vest in full on February 28, 2028.

SEC source: 0001673985-25-000020 · wk-form4_1741125603.xml · nonDerivative · entry 2

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,511

F2 · shares: Grant of restricted stock units pursuant to the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated, which are scheduled to vest in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001673985-25-000020 · wk-form4_1741125603.xml · nonDerivative · entry 1

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,529

F1 · shares: Shares withheld to satisfy tax withholding obligations related to Restricted Stock Units that vested on February 28, 2025.

SEC source: 0001673985-25-000004 · wk-form4_1738704296.xml · nonDerivative · entry 2

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 502,795

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.68 to $30.77, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-25-000004 · wk-form4_1738704296.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 503,395

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $29.68 to $30.67, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-25-000002 · wk-form4_1735941962.xml · nonDerivative · entry 2

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 507,795

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.84 to $29.01, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-25-000002 · wk-form4_1735941962.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 508,095

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.83 to $28.61, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000168 · wk-form4_1734558200.xml · nonDerivative · entry 1

Karran Todd D. · CIK 0001685376 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,228

F1 · shares: Represents the allocation of deferred compensation to the reporting person's deferred stock unit fund account under the AdvanSix Inc. Deferred Compensation Plan. Each unit allocated under the stock unit fund represents the economic equivalent of one share of common stock. Units are paid out in shares of AdvanSix Inc. common stock upon distribution.

F2 · balance_after: Includes a total of 1,335 shares representing stock units credited as dividend equivalents in connection with unvested restricted stock units under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as amended and restated, and deferred stock units under the AdvanSix Inc. Deferred Compensation Plan, which were acquired in transactions exempt from reporting under Rule 16a-11.

SEC source: 0001673985-24-000166 · wk-form4_1734557953.xml · nonDerivative · entry 1

Williams Patrick · CIK 0001338883 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,893

F1 · shares: Represents the allocation of deferred compensation to the reporting person's deferred stock unit fund account under the AdvanSix Inc. Deferred Compensation Plan. Each unit allocated under the stock unit fund represents the economic equivalent of one share of common stock. Units are paid out in shares of AdvanSix Inc. common stock upon distribution.

F2 · balance_after: Includes a total of 249 shares representing stock units credited as dividend equivalents in connection with unvested restricted stock units under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as amended and restated, and deferred stock units under the AdvanSix Inc. Deferred Compensation Plan, which were acquired in transactions exempt from reporting under Rule 16a-11.

SEC source: 0001673985-24-000164 · wk-form4_1733348303.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 512,795

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $31.98 to $32.65, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000162 · wk-form4_1732655923.xml · derivative · entry 3

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 1,951 shares

Expires 2030-02-26

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

F2 · derivative.exercise_date: This option vested in one-third increments on February 26, 2021, February 26, 2022 and February 26, 2023.

SEC source: 0001673985-24-000162 · wk-form4_1732655923.xml · nonDerivative · entry 2

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,463

F1 · shares: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

SEC source: 0001673985-24-000162 · wk-form4_1732655923.xml · nonDerivative · entry 1

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 45,414

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

SEC source: 0001673985-24-000160 · wk-form4_1732051213.xml · nonDerivative · entry 1

NEWMAN DONALD P · CIK 0001282236 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,030

F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $29.56 to $29.75, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000158 · wk-form4_1731100488.xml · derivative · entry 3

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,951

Underlying: Common Stock, par value $0.01 · 505 shares

Expires 2030-02-26

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

F2 · derivative.exercise_date: This option vested in one-third increments on February 26, 2021, February 26, 2022 and February 26, 2023.

SEC source: 0001673985-24-000158 · wk-form4_1731100488.xml · nonDerivative · entry 2

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,463

F1 · shares: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

SEC source: 0001673985-24-000158 · wk-form4_1731100488.xml · nonDerivative · entry 1

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,968

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

SEC source: 0001673985-24-000156 · wk-form4_1731017681.xml · derivative · entry 3

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,456

Underlying: Common Stock, par value $0.01 · 2,435 shares

Expires 2030-02-26

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

F2 · derivative.exercise_date: This option vested in one-third increments on February 26, 2021, February 26, 2022 and February 26, 2023.

SEC source: 0001673985-24-000156 · wk-form4_1731017681.xml · nonDerivative · entry 2

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,463

F1 · shares: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

SEC source: 0001673985-24-000156 · wk-form4_1731017681.xml · nonDerivative · entry 1

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 45,898

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

SEC source: 0001673985-24-000154 · wk-form4_1730765350.xml · nonDerivative · entry 1

Kintiroglou Achilles B. · CIK 0001806189 · SVP, General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,238

F1 · shares: The purchase reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 9, 2023.

SEC source: 0001673985-24-000152 · wk-form4_1730765193.xml · nonDerivative · entry 2

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 517,795

F1 · shares: The purchase reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.83 to $31.00, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000152 · wk-form4_1730765193.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 519,295

F1 · shares: The purchase reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $29.71 to $30.66, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000142 · wk-form4_1728334363.xml · derivative · entry 3

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,891

Underlying: Common Stock, par value $0.01 · 270 shares

Expires 2030-02-26

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

F3 · derivative.exercise_date: This option vested in one-third increments on February 26, 2021, February 26, 2022 and February 26, 2023.

SEC source: 0001673985-24-000142 · wk-form4_1728334363.xml · nonDerivative · entry 2

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,463

F1 · shares: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $32.00 to $32.04, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000142 · wk-form4_1728334363.xml · nonDerivative · entry 1

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,733

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

SEC source: 0001673985-24-000136 · wk-form4_1727901152.xml · nonDerivative · entry 1

Kintiroglou Achilles B. · CIK 0001806189 · SVP, General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,601

F1 · shares: The purchase reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 9,2023.

SEC source: 0001673985-24-000140 · wk-form4_1727901660.xml · nonDerivative · entry 1

Manjeshwar Siddharth · CIK 0002038196 · SVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,437

F1 · shares: Grant of restricted stock units pursuant to the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated, which will vest in full on October 1, 2027.

SEC source: 0001673985-24-000138 · wk-form4_1727901392.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 522,795

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.03 to $30.46, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000132 · wk-form4_1727900706.xml · nonDerivative · entry 1

Karran Todd D. · CIK 0001685376 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,497

F1 · shares: Represents the allocation of deferred compensation to the reporting person's deferred stock unit fund account under the AdvanSix Inc. Deferred Compensation Plan. Each unit allocated under the stock unit fund represents the economic equivalent of one share of common stock. Units are paid out in shares of AdvanSix Inc. common stock upon distribution.

F2 · balance_after: Includes a total of 173 shares representing stock units credited as dividend equivalents in connection with unvested restricted stock units under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as amended and restated, and deferred stock units under the AdvanSix Inc. Deferred Compensation Plan, which were acquired in transactions exempt from reporting under Rule 16a-11.

SEC source: 0001673985-24-000134 · wk-form4_1727900995.xml · nonDerivative · entry 1

Williams Patrick · CIK 0001338883 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,412

F1 · shares: Represents the allocation of deferred compensation to the reporting person's deferred stock unit fund account under the AdvanSix Inc. Deferred Compensation Plan. Each unit allocated under the stock unit fund represents the economic equivalent of one share of common stock. Units are paid out in shares of AdvanSix Inc. common stock upon distribution.

F2 · balance_after: Includes a total of 52 shares representing stock units credited as dividend equivalents in connection with unvested restricted stock units under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as amended and restated, and deferred stock units under the AdvanSix Inc. Deferred Compensation Plan, which were acquired in transactions exempt from reporting under Rule 16a-11.

SEC source: 0001673985-24-000122 · wk-form4_1725567367.xml · nonDerivative · entry 1

Kintiroglou Achilles B. · CIK 0001806189 · SVP, General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,951

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 9, 2023.

SEC source: 0001673985-24-000124 · wk-form4_1725567471.xml · nonDerivative · entry 2

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 527,795

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

SEC source: 0001673985-24-000124 · wk-form4_1725567471.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 527,895

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.99 to $28.91 inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000120 · wk-form4_1724790174.xml · derivative · entry 3

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,161

Underlying: Common Stock, par value $0.01 · 5,213 shares

Expires 2030-02-26

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

F2 · derivative.exercise_date: This option vested in one-third increments on February 26, 2021, February 26, 2022 and February 26, 2023.

SEC source: 0001673985-24-000120 · wk-form4_1724790174.xml · nonDerivative · entry 2

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,463

F1 · shares: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

SEC source: 0001673985-24-000120 · wk-form4_1724790174.xml · nonDerivative · entry 1

Gramm Christopher · CIK 0001684047 · Controller

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 48,676

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: The exercise of options and sale of the underlying shares reported here were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2024.

SEC source: 0001673985-24-000113 · wk-form4_1722889539.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 532,795

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.80 to $28.50, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000109 · wk-form4_1722631485.xml · nonDerivative · entry 1

Kintiroglou Achilles B. · CIK 0001806189 · SVP, General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,301

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 9, 2023.

SEC source: 0001673985-24-000111 · wk-form4_1722631592.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 536,237

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.84 to $28.20, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000098 · wk-form4_1722458560.xml · nonDerivative · entry 2

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 537,795

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.80 to $28.06, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F4 · balance_after: Includes an additional 40 shares representing stock units credited as dividend equivalents in connection with unvested restricted stock units under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as amended and restated, which were acquired in a transaction exempt from reporting under Rule 16a-11.

SEC source: 0001673985-24-000098 · wk-form4_1722458560.xml · nonDerivative · entry 1

Kane Erin N · CIK 0001684077 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 545,834

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.80 to $28.13, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001673985-24-000092 · wk-form4_1719954925.xml · nonDerivative · entry 1

Kintiroglou Achilles B. · CIK 0001806189 · SVP, General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,651

F1 · shares: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 9, 2023.

F2 · balance_after: Includes an additional 16 shares representing stock units credited as dividend equivalents in connection with unvested restricted stock units under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as amended and restated, which were acquired in a transaction exempt from reporting under Rule 16a-11.

SEC source: 0001673985-24-000094 · wk-form4_1719955047.xml · nonDerivative · entry 1

Karran Todd D. · CIK 0001685376 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,760

F1 · shares: Represents the allocation of deferred compensation to the reporting person's deferred stock unit fund account under the AdvanSix Inc. Deferred Compensation Plan. Each unit allocated under the stock unit fund represents the economic equivalent of one share of common stock. Units are paid out in shares of AdvanSix Inc. common stock upon distribution.

F2 · balance_after: Includes a total of 739 shares representing stock units credited as dividend equivalents in connection with unvested restricted stock units under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as amended and restated, and deferred stock units under the AdvanSix Inc. Deferred Compensation Plan, which were acquired in transactions exempt from reporting under Rule 16a-11.

SEC source: 0001673985-24-000096 · wk-form4_1719955174.xml · nonDerivative · entry 1

Williams Patrick · CIK 0001338883 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,928

F1 · shares: Represents the allocation of deferred compensation to the reporting person's deferred stock unit fund account under the AdvanSix Inc. Deferred Compensation Plan. Each unit allocated under the stock unit fund represents the economic equivalent of one share of common stock. Units are paid out in shares of AdvanSix Inc. common stock upon distribution.

F2 · balance_after: Includes a total of 195 shares representing stock units credited as dividend equivalents in connection with unvested restricted stock units under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as amended and restated, and deferred stock units under the AdvanSix Inc. Deferred Compensation Plan, which were acquired in transactions exempt from reporting under Rule 16a-11.

SEC source: 0001673985-24-000088 · wk-form4_1718312468.xml · nonDerivative · entry 1

Hughes Darrell K. · CIK 0001685371 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,769

F1 · shares: Grant of restricted stock units pursuant to the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated, which will vest in full on June 11, 2025.