[Form 4] AdvanSix Inc. Insider Trading Activity

Day Patrick C. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Day Patrick C. reported acquisition or exercise transactions in this Form 4 filing.

AdvanSix Inc. reported that its SVP and CFO, Patrick C. Day, received equity compensation awards in the form of restricted stock units tied to its common stock on April 27, 2026. He was granted a total of 38,038 units at a reference value of $23.66 per share, bringing his direct holdings to 38,038 shares.

One grant of 19,019 restricted stock units is scheduled to vest in three equal annual installments on the first three anniversaries of the grant date. A separate grant of 19,019 restricted stock units will vest in full on April 27, 2029, providing a longer-term incentive.

Insider Trade Summary

Grant/Award: 38,038 shares

Grant/Award 2 txns

Insider Day Patrick C.

Role SVP, CFO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01	19,019	$23.66	$450K
Grant/Award	Common Stock, par value $0.01	19,019	$23.66	$450K

Holdings After Transaction: Common Stock, par value $0.01 — 38,038 shares (Direct)

Footnotes (2)

1. F1. 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.
2. F2. Grant of restricted stock units pursuant to the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, which will vest in full on April 27, 2029.

Key Figures

RSUs granted (installment vesting): 19,019 units RSUs granted (cliff vesting): 19,019 units Total RSUs/stock units after grants: 38,038 shares +3 more

6 metrics

RSUs granted (installment vesting) 19,019 units Restricted stock units vesting in three equal annual installments

RSUs granted (cliff vesting) 19,019 units Restricted stock units vesting in full on April 27, 2029

Total RSUs/stock units after grants 38,038 shares Common stock directly held by CFO following the reported transactions

Grant-date share value $23.66 per share Reference price used for the April 27, 2026 restricted stock unit grants

Vesting start First anniversary of grant Three annual vesting dates beginning one year after April 27, 2026

Final vesting date April 27, 2029 Date when the second 19,019-unit award vests in full

Key Terms

restricted stock units, 2016 Stock Incentive Plan, vest in three equal annual installments, grant date, +1 more

5 terms

restricted stock units financial

"Grant of restricted stock units pursuant to the 2016 Stock Incentive Plan"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2016 Stock Incentive Plan financial

"pursuant to the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates"

vest in three equal annual installments financial

"which are scheduled to vest in three equal annual installments"

grant date financial

"on the first three anniversaries of the grant date"

The grant date is the day a company formally gives an employee or contractor the right to receive stock-based compensation, such as stock options or restricted shares. It matters to investors because it fixes key terms—like the price, the start of the ownership clock, and when the award will affect the company’s financial statements and share count—so it can influence dilution, reported expenses, and potential future selling pressure.

vest in full financial

"which will vest in full on April 27, 2029"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did AdvanSix (ASIX) report for CFO Patrick C. Day?

AdvanSix reported that SVP and CFO Patrick C. Day received equity awards totaling 38,038 restricted stock units of common stock. These were reported as grants under a company stock incentive plan, rather than open-market purchases, and increase his directly held share-based position to 38,038 shares.

How many AdvanSix (ASIX) shares were granted to the CFO in this Form 4?

The Form 4 shows Patrick C. Day was granted 38,038 restricted stock units of AdvanSix common stock. This consists of two separate 19,019-unit awards, reported at a reference value of $23.66 per share, and results in 38,038 shares held directly after the transactions.

What is the vesting schedule for the new AdvanSix (ASIX) CFO restricted stock units?

One 19,019-unit grant is scheduled to vest in three equal annual installments on the first three anniversaries of the April 27, 2026 grant date. A second 19,019-unit grant will vest in full on April 27, 2029, creating a longer-term retention incentive for the CFO.

Were the AdvanSix (ASIX) CFO stock grants open-market purchases or compensation awards?

The reported transactions are compensation awards, not open-market purchases. They are described as grants of restricted stock units made under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as amended and restated, with specified vesting schedules rather than market transactions.

What stock incentive plan did AdvanSix (ASIX) use for the CFO’s new equity awards?

The grants were made under the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, as Amended and Restated, and a related plan reference. These plans govern restricted stock unit awards, including vesting terms and other conditions attached to the CFO’s equity compensation.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/29/2026 - 04:09 PM Learn about SEC filing dates

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^*

Day Patrick C.

(Last) (First) (Middle)

300 KIMBALL DRIVE

STE 101

(Street)

PARSIPPANY NEW JERSEY 07054

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	SVP, CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/27/2026

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

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

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

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	04/27/2026		A		19,019(1)	A	$23.66	19,019	D
Common Stock, par value $0.01	04/27/2026		A		19,019(2)	A	$23.66	38,038	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. 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.

2. Grant of restricted stock units pursuant to the 2016 Stock Incentive Plan of AdvanSix Inc. and its Affiliates, which will vest in full on April 27, 2029.

Remarks:

	/s/ Achilles B. Kintiroglou for Patrick Day	04/29/2026
	** 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).
** 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.
* Form 4: SEC 1474 (03-26)