UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_____________________________________

Form 8-K

_____________________________________

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 7, 2025

ADVANSIX INC.

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction

of incorporation)

1-37774

(Commission File Number)

81-2525089

(I.R.S. Employer

Identification No.)

300 Kimball Drive, Suite 101

Parsippany, New Jersey 07054

(Address of principal executive offices)

Registrant’s telephone number, including area code: (973) 526-1800

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):


☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	ASIX	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02 Results of Operations and Financial Condition.

On November 7, 2025, AdvanSix Inc. (the "Company") issued a press release announcing its financial results for the quarter ended September 30, 2025. A copy of the press release is furnished herewith as Exhibit 99.1.

ITEM 8.01 Other Events.

Dividend

On November 7, 2025, the Company announced that its Board of Directors declared a cash dividend of $0.16 per share on the Company's common stock. The dividend will be paid on December 2, 2025 to stockholders of record as of the close of business on November 18, 2025.

The Company's announcement of the dividend is included in the press release furnished herewith as Exhibit 99.1.

ITEM 9.01 Financial Statements and Exhibits.

(d) Exhibits


Exhibit Number						Description

99.1						Press Release dated November 7, 2025

104						Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: November 7, 2025


			AdvanSix Inc.

			By:			/s/ Achilles B. Kintiroglou
			Name:			Achilles B. Kintiroglou
			Title:			Senior Vice President, General Counsel and Corporate Secretary

AdvanSix Inc. 8-K