AdvanSix (ASIX) interim CFO uses 2,624 shares to cover RSU taxes

Rhea-AI Filing Summary

AdvanSix Inc. VP and Interim CFO Christopher Gramm reported a tax-related share disposition. On February 28, 2026, 2,624 shares of common stock were withheld at $17.47 per share to satisfy tax withholding obligations tied to vested restricted stock units. After this transaction, Gramm directly owned 73,025 shares of AdvanSix common stock.

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

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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^*

Gramm Christopher

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP and Interim CFO

3. Date of Earliest Transaction (Month/Day/Year)
02/28/2026

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	02/28/2026		F		2,624(1)	D	$17.47	73,025	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. Shares withheld to satisfy tax withholding obligations related to Restricted Stock Units that vested on February 28, 2026.

Remarks:

	/s/ Achilles B. Kintiroglou for Christopher Gramm	03/03/2026
	** 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).
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FAQ

What insider transaction did AdvanSix (ASIX) report for Christopher Gramm?

AdvanSix (ASIX) reported that VP and Interim CFO Christopher Gramm had 2,624 shares of common stock withheld. These shares covered tax obligations arising from restricted stock units that vested on February 28, 2026, rather than representing an open-market sale of shares.

Was the AdvanSix (ASIX) Form 4 transaction an open-market sale?

No, the AdvanSix (ASIX) Form 4 shows a tax-withholding disposition, not an open-market sale. Shares were retained by the company to satisfy Gramm’s tax obligations on vested restricted stock units, a common administrative mechanism for equity compensation.

How many AdvanSix (ASIX) shares were used to cover taxes for Christopher Gramm?

A total of 2,624 AdvanSix (ASIX) common shares were withheld to cover tax obligations. The shares related to restricted stock units vesting on February 28, 2026, and were valued at a transaction price of $17.47 per share according to the Form 4.

How many AdvanSix (ASIX) shares does Christopher Gramm own after the Form 4 event?

Following the tax-withholding disposition, Christopher Gramm directly owns 73,025 AdvanSix (ASIX) common shares. This post-transaction holding reflects his remaining equity stake after 2,624 shares were withheld to satisfy tax liabilities on vested restricted stock units.

What does transaction code “F” mean in the AdvanSix (ASIX) Form 4?

In the AdvanSix (ASIX) Form 4, transaction code “F” indicates shares were used to pay a tax liability or exercise price. Here, it specifically means 2,624 shares were withheld to satisfy Gramm’s tax withholding obligations for restricted stock units that vested.

What role does Christopher Gramm hold at AdvanSix (ASIX) in this Form 4?

In this Form 4, Christopher Gramm is identified as VP and Interim CFO of AdvanSix (ASIX). The reported transaction reflects an administrative tax-withholding event tied to his equity compensation, not a discretionary decision to buy or sell shares in the market.