[144] AdvanSix Inc. SEC Filing

Rhea-AI Filing Summary

AdvanSix Inc. insider filing reports a proposed sale of 577 shares of Common Stock through Merrill Lynch on or about 10/03/2025 with an aggregate market value of $11,540.00. The shares were acquired and paid for on 02/28/2025 as the vesting of a restricted stock unit award. The filer also disclosed two recent sales: 571 shares on 09/02/2025 and 571 shares on 08/01/2025, showing recent periodic dispositions by the same person. The filing states the seller represents they do not possess undisclosed material adverse information about the issuer.

Positive

• 577 shares to be sold were acquired via vesting of RSU award on 02/28/2025
• Sale is routed through a registered broker: Merrill Lynch
• Filer certifies they have no undisclosed material adverse information

Negative

• Recent prior sales: 571 shares on 09/02/2025 and 571 shares on 08/01/2025
• Aggregate market value of the proposed sale is relatively small at $11,540.00

Insights

Insider Transactions Analyst

Small, routine insider sale following RSU vesting; disclosed under Rule 144.

The filing shows the sale of 577 shares via Merrill Lynch scheduled for 10/03/2025, with the shares sourced from an RSU vest on 02/28/2025. This is a standard compliance notice required when restricted or control securities are sold under Rule 144.

The seller previously reported two small sales of 571 shares each on 09/02/2025 and 08/01/2025, indicating ongoing dispositions rather than a single large divestiture. The form includes the seller's representation that no undisclosed material adverse information is known.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	Merrill Lynch 225 Liberty St Floor 37 New York NY 10281	577	11540.00	26844187	10/03/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	02/28/2025	02/28/2025	AdvanSix Inc.			577	02/28/2025	Vesting of restricted stock unit award

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Achilles Kintiroglou 300 KIMBALL DRIVE PARSIPPANY NJ 07054	Common Stock	09/02/2025	571	12105.20
Achilles Kintiroglou 300 KIMBALL DRIVE PARSIPPANY NJ 07054	Common Stock	08/01/2025	571	11522.78

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 for AdvanSix (ASIX) report?

The Form 144 reports a proposed sale of 577 shares of AdvanSix common stock, to be sold through Merrill Lynch on or about 10/03/2025 with an aggregate market value of $11,540.00.

How were the 577 shares acquired for the ASIX filing?

The 577 shares were acquired and paid for on 02/28/2025 as the vesting of a restricted stock unit award.

Did the filer sell any AdvanSix shares recently?

Yes. The filer sold 571 shares on 09/02/2025 and 571 shares on 08/01/2025, as disclosed in the filing.

Who is the broker handling the proposed sale?

The proposed sale is to be handled by Merrill Lynch, located at 225 Liberty St, Floor 37, New York, NY.

Does the filer state they possess any undisclosed material information?

By signing the notice, the filer represents they do not know any material adverse information about the issuer that has not been publicly disclosed.