A10 director plans sale of 2,652 shares in 2026

A10 Networks, Inc. (ATEN) director Dana Elizabeth Wolf filed a Form 144 notice to sell up to 2,652 shares of the company’s common stock under Rule 144.

Rhea-AI Filing Summary

A10 Networks, Inc. (ATEN) director Dana Elizabeth Wolf filed a Form 144 notice to sell up to 2,652 shares of the company’s common stock under Rule 144. The shares, held as restricted stock acquired from the issuer on 06/24/2023, have an aggregate market value of $68,023.80 and are planned to be sold through Morgan Stanley Smith Barney LLC on or after 08/25/2026, with the shares listed on the NYSE.

Key Figures

Shares to be sold: 2,652 shares Aggregate market value: $68,023.80 CUSIP: 72609021 +3 more

6 metrics

Shares to be sold 2,652 shares Common stock covered by the Form 144 notice

Aggregate market value $68,023.80 Reported value of the 2,652 shares to be sold

CUSIP 72609021 Identifier for the A10 Networks, Inc. common stock in the notice

Planned sale date 08/25/2026 Date listed for proposed sale of the shares

Acquisition date 06/24/2023 Date the restricted stock was acquired from the issuer

Class of securities Common Type of A10 Networks, Inc. security covered in the filing

Key Terms

Rule 144, Restricted Stock, CUSIP, Form 144

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock financial

"Common | 06/24/2023 | Restricted Stock | ISSUER |"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

CUSIP financial

"| 2652 | 68023.80 | 72609021 | 08/25/2026 | NYSE"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

Form 144 regulatory

"144: Filer Information 144: Issuer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

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

What does the Form 144 filing by Dana Elizabeth Wolf mean for A10 Networks, Inc. (ATEN)?

The filing states that director Dana Elizabeth Wolf intends to sell up to 2,652 shares of A10 Networks, Inc. common stock under Rule 144. It is a notice of a potential sale, not confirmation that the sale has already occurred.

How many ATEN shares are covered by Dana Elizabeth Wolf’s Form 144 notice?

The notice covers up to 2,652 shares of A10 Networks, Inc. common stock. The filing also reports an aggregate market value for these shares of $68,023.80 in connection with the proposed Rule 144 sale.

What is the approximate market value of the ATEN shares in this Form 144 filing?

The Form 144 reports an aggregate market value of $68,023.80 for the 2,652 shares of A10 Networks, Inc. common stock that may be sold under Rule 144. This value is used for disclosure purposes in the notice.

When were the ATEN shares to be sold by Dana Elizabeth Wolf originally acquired?

The filing states that the 2,652 A10 Networks, Inc. common shares were acquired on 06/24/2023 as Restricted Stock from the issuer. This acquisition date is relevant to the Rule 144 holding-period requirements.

When does the Form 144 indicate the planned sale date for the ATEN shares?

The Form 144 lists a planned sale date of 08/25/2026 for the 2,652 shares of A10 Networks, Inc. common stock. This date reflects when the securities may be sold under the notice, typically through the listed broker.

Through which broker are the ATEN shares in this Form 144 expected to be sold?

The filing identifies Morgan Stanley Smith Barney LLC Executive Financial Services as the broker for the planned sale of 2,652 shares of A10 Networks, Inc. common stock under Rule 144.

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

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Available on EDGAR 08/25/2026 - 04:07 PM Accepted by SEC EDGAR 08/25/2026 - 04:06 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	0001931555
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	DANA ELIZABETH WOLF
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	Director

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	2652	68023.80	72609021	08/25/2026	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	06/24/2023	Restricted Stock	ISSUER			2652	06/24/2023	Not Applicable

* 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
Date of Notice	08/25/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/15/2026
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/ Dana Elizabeth Wolf
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)