AdvanSix Inc.
For the period ended Dec 31, 2025. Filed Feb 20, 2026.
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FY2025 · Filed Feb 20, 2026
ASIX$15.63-7.1%Stored close · as of Nov 9, 2026
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Item 16. Form 10-K Summary
The Company has elected not to include a Form 10-K summary under this Item 16.
EXHIBIT INDEX
| Exhibit No. | Description |
| 2.1 | Separation and Distribution Agreement, dated as of September 22, 2016, between Honeywell International Inc. and AdvanSix Inc. (incorporated by reference to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed on September 28, 2016). |
| 3.1 | Amended and Restated Certificate of Incorporation of AdvanSix Inc. (incorporated by reference to Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q filed on August 1, 2025). |
| 3.2 | Amended and Restated By-laws of AdvanSix Inc. (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed on June 20, 2023). |
| 4.1 | Description of Securities of the Registrant (incorporated by reference to Exhibit 4.1 to the Company's Annual Report on Form 10-K filed on February 21, 2020). |
| 10.1 | Transition Services Agreement, dated as of September 28, 2016, between Honeywell International Inc. and AdvanSix Inc. (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on September 28, 2016). |
| 10.2 | Tax Matters Agreement, dated as of September 22, 2016, between Honeywell International Inc. and AdvanSix Inc. (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on September 28, 2016). |
| 10.3 | Offer of Employment Letter between Honeywell International Inc. and Erin N. Kane, dated April 19, 2016 (incorporated by reference to Exhibit 10.9 to the Company’s Amendment No. 1 to Form 10 filed on July 25, 2016). † |
| 10.4 | Offer of Employment Letter between AdvanSix Inc. and Siddharth Manjeshwar, dated September 12, 2024 (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on November 1, 2024) † |
| 10.5 | Employment Separation Agreement and Release between AdvanSix Inc. and Siddharth Manjeshwar, dated July 9, 2025 (incorporated by reference to Exhibit 10.1 to the Company’s Form 10-Q filed on November 7, 2025)† |
| 10.6 | Offer of Employment Letter between Honeywell International Inc. and Michael Preston, dated May 13, 2016 (incorporated by reference to Exhibit 10.11 to the Company’s Amendment No. 1 to Form 10 filed on July 25, 2016). † |
| 10.7 | Offer of Employment Letter between AdvanSix Inc. and Achilles B. Kintiroglou, dated February 24, 2020 (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 1, 2020) † |
| 10.8 | Offer of Employment Letter between AdvanSix Inc. and Kelly Slieter, dated May 25, 2020 (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on July 31, 2020) † |
| 10.9 | Offer of Employment Letter between AdvanSix Inc. and Christopher Gramm, dated as of August 19, 2016 (incorporated by reference to Exhibit 10.5 to the Company’s Current Report on Form 8-K filed on October 3, 2016). † |
| 10.10 | 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates (incorporated by reference to Exhibit 10.6 to the Company’s Current Report on Form 8-K filed on October 3, 2016). † |
| Exhibit No. | Description |
| 10.11 | 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on June 23, 2020). |
| 10.12 | 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (effective June 15, 2022) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on June 16, 2022) † |
| 10.13 | 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated (effective June 18, 2025) (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on June 20, 2025) † |
| 10.14 | Form of Restricted Stock Unit Agreement for Non-Employee Directors under the AdvanSix Inc. 2016 Stock Incentive Plan (incorporated by reference to Exhibit 10.8 to the Company’s Current Report on Form 8-K filed on October 3, 2016). † |
| 10.15 | Form of Restricted Stock Unit Agreement for Executive Officers under the AdvanSix Inc. 2016 Stock Incentive Plan (incorporated by reference to Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q filed on May 11, 2017). † |
| 10.16 | Form of Restricted Stock Unit Agreement for Executive Officers under the AdvanSix Inc. 2016 Stock Incentive Plan, as Amended and Restated (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed on May 5, 2023). † |
| 10.17 | Form of Performance Stock Unit Agreement under the AdvanSix Inc. 2016 Stock Incentive Plan (incorporated by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q filed on May 11, 2017). † |
| 10.18 | Form of Performance Stock Unit Agreement for Executive Officers under the AdvanSix Inc. 2016 Stock Incentive Plan, as Amended and Restated (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q filed on May 5, 2023). † |
| 10.19 | Form of Stock Option Award Agreement under the AdvanSix Inc. 2016 Stock Incentive Plan (incorporated by reference to Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q filed on May 11, 2017). † |
| 10.20 | Form of Stock Option Award Agreement for Executive Officers under the AdvanSix Inc. 2016 Stock Incentive Plan, as Amended and Restated (incorporated by reference to Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q filed on May 5, 2023). † |
| 10.21 | AdvanSix Inc. Deferred Compensation Plan (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on September 26, 2017). † |
| 10.22 | Executive Severance Pay Plan of AdvanSix Inc. (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on November 15, 2017). † |
| 10.23 | Form of Noncompete Agreement for Senior Executives (incorporated by reference to Exhibit 10.1 of the Company’s Quarterly Report on Form 10-Q filed on August 3, 2018). † |
| 10.24 | Amended and Restated Caprolactam and Polymer Supply Agreement dated as of Jan 1, 2019, by and between AdvanSix Resins Chemicals LLC and Shaw Industries Group, Inc. (incorporated by reference to Exhibit 10.31 to the Company’s Annual Report on Form 10-K filed with the SEC on February 22, 2019) * |
| 10.25 | Amendment No. 1 and Amendment No. 2 to Amended and Restated Caprolactam and Polymer Supply Agreement, dated as of October 1, 2021 and January 1, 2023, respectively, by and between AdvanSix Resins Chemicals LLC and Shaw Industries Group, Inc. (incorporated by reference to Exhibit 10.36 to the Company’s Annual Report on Form 10-K filed with the SEC on February 17, 2023)** |
| 10.26 | Amendment No. 3 to Amended and Restated Caprolactam and Polymer Supply Agreement, dated as of May 1, 2024, by and between AdvanSix Resins and Chemicals LLC and Shaw Industries Group, Inc.** (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on August 2, 2024)** |
| Exhibit No. | Description |
| 10.27 | Credit Agreement, dated as of October 27, 2021, among AdvanSix Inc., the lenders party thereto and Truist Bank, as administrative agent (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on October 29, 2021). |
| 10.28 | First Amendment to Credit Agreement, dated as of June 27, 2023, among AdvanSix Inc., the lenders party thereto and Truist Bank, as administrative agent (with annexed Amended and Restated Credit Agreement) (incorporated by reference to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q filed on August 4, 2023). |
| 10.29 | Amendment No. 2 to Credit Agreement, dated as of October 23, 2025, among AdvanSix Inc., the guarantors, the lenders signatory thereto and Truist Bank, as the administrative agent (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on October 23, 2025). |
| 19.1 | AdvanSix Inc. Policy Regarding Insider Trading and Other Transactions in AdvanSix Securities (incorporated by reference to Exhibit 19.1 to the Company’s Annual Report on Form 10-K filed on February 21, 2025). |
| 21.1 | List of subsidiaries of AdvanSix Inc. (incorporated by reference to Exhibit 21.1 to Amendment No. 4 to the Registration Statement of AdvanSix Inc. on Form 10 dated and filed with the SEC on August 31, 2016 and effective as of September 8, 2016). |
| 23.1 | Consent of PricewaterhouseCoopers LLP. |
| 31.1 | Rule 13a-14(a)/15d-14(a) Certification of the Company’s Principal Executive Officer. |
| 31.2 | Rule 13a-14(a)/15d-14(a) Certification of the Company’s Principal Financial Officer. |
| 32.1 | Section 1350 Certification of the Company’s Principal Executive Officer. The information contained in this Exhibit shall not be deemed filed with the SEC nor incorporated by reference in any registration statement filed by the registrant under the Securities Act of 1933, as amended. |
| 32.2 | Section 1350 Certification of the Company’s Principal Financial Officer. The information contained in this Exhibit shall not be deemed filed with the SEC nor incorporated by reference in any registration statement filed by the registrant under the Securities Act of 1933, as amended. |
| 97.1 | AdvanSix Inc. Incentive Compensation Recovery Policy, effective as of September 20, 2023 (incorporated by reference to Exhibit 97.1 to the Company's Annual Report on Form 10-K filed with the SEC on February 16, 2024). † |
| 99.1 | Information Statement of AdvanSix Inc. (incorporated by reference to Exhibit 99.1 to Amendment No. 5 to the Registration Statement of AdvanSix Inc. on Form 10 dated and filed with the SEC on September 7, 2016 and effective as of September 8, 2016). |
| 101.INS | Inline XBRL Instance Document - The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document. |
| 101.SCH | Inline XBRL Taxonomy Extension Schema |
| 101.CAL | Inline XBRL Taxonomy Extension Calculation Linkbase |
| 101.DEF | Inline XBRL Taxonomy Extension Definition Linkbase |
| 101.LAB | Inline XBRL Taxonomy Extension Label Linkbase |
| 101.PRE | Inline XBRL Taxonomy Extension Presentation Linkbase |
| 104 | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) |
| † | Indicates management contract or compensatory plan. |
| * | Confidential treatment has been granted for certain information contained in Exhibit 10.24 and the omitted portions have been filed separately with the SEC. |
| ** | Portions of this exhibit have been redacted in compliance with Item 601(b)(10) of Regulation S-K. |
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