AdvanSix Inc. (ASIX) director reports 821-share deferred stock award

Rhea-AI Filing Summary

AdvanSix Inc. director Patrick Williams increased his stake through a deferred compensation allocation. On 12/15/2025, he acquired 821 shares of common stock at $15.97 per share via the company’s Deferred Compensation Plan, which credits a stock unit fund where each unit equals one share and is paid out in stock at distribution.

Following this transaction, Williams beneficially owns 35,923 AdvanSix common shares directly. This total includes 137 shares credited as stock units from dividend equivalents tied to unvested restricted stock units and deferred stock units, received in transactions exempt from reporting under Rule 16a-11.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Williams Patrick

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01	821	$15.97	$13K

Holdings After Transaction: Common Stock, par value $0.01 — 35,923 shares (Direct)

Footnotes (1)

1. 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. Includes an additional 137 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.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Williams Patrick

(Last) (First) (Middle)

300 KIMBALL DRIVE, SUITE 101

(Street)

PARSIPPANY NJ 07054

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
AdvanSix Inc. [ ASIX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/15/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.01	12/15/2025		A		821(1)	A	$15.97	35,923(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. Includes an additional 137 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.

Remarks:

	/s/ Achilles B. Kintiroglou for Patrick Williams	12/17/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did AdvanSix (ASIX) report on 12/15/2025?

AdvanSix reported that director Patrick Williams acquired 821 shares of its common stock on 12/15/2025 at a price of $15.97 per share.

How many AdvanSix shares does Patrick Williams own after this transaction?

After the reported transaction, Patrick Williams beneficially owns 35,923 AdvanSix common shares in direct ownership.

How were the 821 AdvanSix shares acquired by Patrick Williams?

The 821 shares reflect an allocation of deferred compensation to Williams’ deferred stock unit fund under the AdvanSix Inc. Deferred Compensation Plan, with each unit representing the economic equivalent of one share.

When will the deferred stock units be paid out to Patrick Williams?

The deferred stock units are paid out in shares of AdvanSix common stock upon distribution under the terms of the Deferred Compensation Plan.

What are the additional 137 AdvanSix shares mentioned in the filing?

The additional 137 shares represent stock units credited as dividend equivalents on unvested restricted stock units and deferred stock units, in transactions exempt from reporting under Rule 16a-11.

What is Patrick Williams’ role at AdvanSix?

Patrick Williams is identified as a director of AdvanSix Inc. in the filing.