ATEN planned sale of 14,086 common shares

ATEN reports a planned sale of 14,086 shares of common stock through Morgan Stanley Smith Barney LLC on the NYSE, with an anticipated sale date of August 11, 2026.

Rhea-AI Filing Summary

ATEN reports a planned sale of 14,086 shares of common stock through Morgan Stanley Smith Barney LLC on the NYSE, with an anticipated sale date of August 11, 2026. The amount consists of 12,521 shares from Performance and Restricted Stock dated February 1, 2024 and 1,565 shares acquired under an Employee Stock Purchase Plan dated May 31, 2024.

Key Figures

Total shares planned for sale: 14,086 shares Performance and Restricted Stock shares: 12,521 shares Employee Stock Purchase Plan shares: 1,565 shares +1 more

4 metrics

Total shares planned for sale 14,086 shares Common stock covered by the Form 144

Performance and Restricted Stock shares 12,521 shares Common shares tied to Performance and Restricted Stock dated 02/01/2024

Employee Stock Purchase Plan shares 1,565 shares Common shares from Employee Stock Purchase Plan dated 05/31/2024

Anticipated sale date 08/11/2026 Proposed date for sale of shares

Key Terms

Performance and Restricted Stock, Employee Stock Purchase Plan, Common

3 terms

Performance and Restricted Stock financial

"Common | 02/01/2024 | Performance and Restricted Stock | ISSUER"

Employee Stock Purchase Plan financial

"Common | 05/31/2024 | Employee Stock Purchase Plan | ISSUER"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

Common financial

"Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

FAQ

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

What does ATEN’s Form 144 filing disclose about upcoming stock sales?

The filing discloses a planned sale of 14,086 common shares of ATEN, to be executed through Morgan Stanley Smith Barney LLC on the NYSE, with an anticipated sale date of August 11, 2026.

How many ATEN shares from performance and restricted stock are planned for sale?

The seller plans to dispose of 12,521 shares of ATEN common stock that are tied to Performance and Restricted Stock with a date of February 1, 2024, as disclosed in the Form 144 filing.

How many ATEN shares from the Employee Stock Purchase Plan are included in the Form 144?

The Form 144 states that 1,565 shares of ATEN common stock, associated with an Employee Stock Purchase Plan dated May 31, 2024, are included in the total shares proposed for sale.

What is the total number of ATEN common shares covered by this planned sale?

In total, the filing covers 14,086 ATEN common shares proposed for sale, combining 12,521 shares from Performance and Restricted Stock and 1,565 shares from the Employee Stock Purchase Plan.

On which exchange are the ATEN shares in this Form 144 expected to be sold?

The Form 144 identifies the NYSE as the exchange where the 14,086 ATEN common shares are expected to be sold, using Morgan Stanley Smith Barney LLC as the broker.

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

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Available on EDGAR 08/11/2026 - 04:10 PM Accepted by SEC EDGAR 08/11/2026 - 04:09 PM Learn about SEC filing dates

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	0001936128
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	A10 NETWORKS, INC.
SEC File Number	001-36343
Address of Issuer	2300 Orchard Parkway, San Jose CALIFORNIA 95131
Phone	(408) 325-8668
Name of Person for Whose Account the Securities are To Be Sold	ROBERT S WEBER
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	Officer

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	14086	392465.54	72609021	08/11/2026	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	02/01/2024	Performance and Restricted Stock	ISSUER			12521	02/01/2024	Not Applicable
Common	05/31/2024	Employee Stock Purchase Plan	ISSUER			1565	05/31/2024	Cash

* 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

Nothing to Report

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock and Performance Shares during the period of 02/01/2024 through 07/05/2025. The securities to be sold were acquired upon the purchase of Employee Stock Purchase Plan shares during the period of 5/31/2024 through 11/30/2024.
Date of Notice	08/11/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/09/2026
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	/s/ Robert Scott Weber
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)