AIP insider files Form 144 for 424-share RSU sale via Morgan Stanley

Rhea-AI Filing Summary

Arteris, Inc. (AIP) Form 144: An insider intends to sell 424 shares of common stock through Morgan Stanley Smith Barney, scheduled approximately 09/08/2025, with an aggregate market value reported as $3,756.64. The filing reports those 424 shares were acquired as restricted stock units on 09/01/2025. The filing also discloses prior dispositions by the same person during the past three months: 258 shares on 09/02/2025 (gross proceeds $2,306.96) and two July sales totaling 6,488 shares (gross proceeds $59,259.89), including a 10b5-1 plan sale of 3,609 shares on 07/03/2025. The filer certifies no undisclosed material information.

Positive

• Filer followed Rule 144 disclosure requirements
• Includes a 10b5-1 sale, indicating pre-arranged trading plan compliance

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine insider resale under Rule 144; transaction sizes are small relative to outstanding shares.

The notice documents a planned sale of 424 shares valued at $3,756.64 and shows multiple recent insider disposals totaling 7,170 shares in the last three months. Compared with the issuer's reported 42,649,917 outstanding shares, these trades are immaterial to capitalization and unlikely to affect market valuation. The presence of a 10b5-1 sale indicates at least one pre-arranged, rule-compliant plan. This is a standard disclosure of executive-level equity monetization rather than an indicator of company-wide developments.

Corporate Governance Expert

TL;DR: Filing reflects compliance with resale and insider-trading rules; disclosure is complete for the transactions reported.

The Form 144 provides required details: class of security, broker, acquisition date (RSUs on 09/01/2025), and recent sales including a 10b5-1 plan sale. The signature representation attesting absence of undisclosed material information is included. From a governance perspective, such filings document transparency around insider liquidity events; nothing in the form suggests procedural deficiencies or undisclosed related-party issues.

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	424	3756.64	42649917	09/08/2025	NASDAQ

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	09/01/2025	Restricted Stock Units	Issuer			424	09/01/2025	N/A

* 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
PAUL LAWRENCE ALPERNTOD MELICENT J ALPERNSUBJECT TO STA RULES 900 E. Hamilton Ave., Suite 300 Campbell CA 95008	Common	09/02/2025	258	2306.96
10b5-1 Sales for PAUL LAWRENCE ALPERN 900 E. Hamilton Ave., Suite 300 Campbell CA 95008	Common	07/03/2025	3609	33370.77
PAUL LAWRENCE ALPERNTOD MELICENT J ALPERNSUBJECT TO STA RULES 900 E. Hamilton Ave., Suite 300 Campbell CA 95008	Common	07/02/2025	2879	25889.12

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 AIP Form 144 disclose about the planned sale?

The filing shows a planned sale of 424 shares of Arteris common stock through Morgan Stanley Smith Barney, scheduled about 09/08/2025, with an aggregate market value of $3,756.64.

When were the 424 shares being sold acquired?

The shares were acquired as restricted stock units on 09/01/2025 and the filing lists the acquisition method as Restricted Stock Units.

What insider sales in the past three months are reported in this Form 144?

The filing reports sales of 258 shares on 09/02/2025 (gross proceeds $2,306.96), 3,609 shares on 07/03/2025 under a 10b5-1 plan (gross proceeds $33,370.77), and 2,879 shares on 07/02/2025 (gross proceeds $25,889.12).

How large are these transactions relative to Arteris' outstanding shares?

The filing lists 42,649,917 shares outstanding; the planned 424-share sale represents a negligible fraction of total outstanding shares.

Which broker is handling the proposed sale?

The broker named in the filing is Morgan Stanley Smith Barney LLC.