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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
____________________________________________________________________________
FORM 8-K
____________________________________________________________________________
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of The Securities Exchange Act of 1934
February 7, 2023
Date of Report (Date of earliest event reported)
____________________________________________________________________________
A10 NETWORKS, INC.
(Exact name of the registrant as specified in its charter)
____________________________________________________________________________

Delaware | 001-36343 | 20-1446869
(State or Other Jurisdiction of Incorporation or Organization) | (Commission File Number) | (I.R.S. Employer Identification Number)

2300 Orchard Parkway
San Jose, CA 95131
(Address of principal executive offices, including zip code)
(408) 325-8668
(Name and telephone number, including area code, of the person to contact in connection with this report)
Not Applicable
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
____________________________________________________________________________
Securities registered pursuant to Section 12(b) of the Act:

Title of each class |  | Trading symbol(s) |  | Name of each exchange on which registered
Common stock, $0.00001 par value per share |  | ATEN |  | New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition
On February 7, 2023, A10 Networks, Inc. (the “Company”) issued a press release regarding financial results for the quarter ended December 31, 2022. A copy of the press release is furnished herewith as Exhibit 99.1.
Item 7.01 Regulation FD Disclosure
On February 7, 2023, the Company posted on its website (www.a10networks.com) slides regarding the financial results for the quarter ended December 31, 2022. A copy of the slides is attached as Exhibit 99.2 and the information in Exhibit 99.2 is incorporated herein by reference.
The information in Item 2.02, Item 7.01, Item 8.01 and Item 9.01 in this Current Report on Form 8-K and the exhibits attached hereto shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended. The information in Item 2.02 shall not be incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.
Item 8.01 Other Events.
On February 7, 2023, the Company announced that its Board of Directors (the “Board”) declared a quarterly dividend. The quarterly dividend, in the amount of $0.06 per share, will be payable, subject to any prior revocation, on March 1, 2023 to stockholders of record on February 15, 2023. Future dividends will be subject to further review and approval by the Board in accordance with applicable law. The Board reserves the right to adjust or withdraw the quarterly dividend in future periods as it reviews A10’s capital allocation strategy from time-to-time.
On January 23, 2023, A10 Networks, Inc. (the “Company”) identified a cyber-security incident in its corporate IT infrastructure. This was not related to any of our products or solutions used by its customers.
Upon detecting the incident, the Company launched an investigation and engaged the services of cyber-security experts and advisors, incident response professionals and external counsel to support the investigation.
Working with outside experts, the Company has contained the attack within its network and has notified the appropriate law enforcement authorities of the incident. The Company has comprehensive security protocols in place, which helped address this incident in an expedited manner, and is reviewing additional steps to further strengthen its security posture. The Company currently does not expect this incident to have a material impact on its operations.
Forward Looking Statements
Item 8.01 contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act, including statements regarding the Company’s dividend program. These forward-looking statements involve risks and uncertainties. These forward-looking statements may be identified by terms such as “will,” “may,” “plans,” or the negative of these terms, and similar expressions intended to identify forward-looking statements. These forward-looking statements include, but are not limited to, statements regarding the anticipated amount, duration, methods, timing and other aspects of our dividend program and any anticipated benefits or value resulting from any such dividends. These statements involve known and unknown risks, uncertainties and other factors which may cause actual results, performance or achievements to differ materially from those expressed or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, any unforeseen need for capital which may require us to divert funds we may have otherwise used for the dividend program, which may in turn negatively impact our ability to administer the quarterly dividends. In addition, the timing and amount of future dividends, if any, will be made as management deems appropriate and will depend

on a variety of factors including stock price, market conditions, corporate and regulatory requirements (including applicable securities laws and regulations and the rules of The New York Stock Exchange), any additional constraints related to material inside information the Company may possess, and capital availability. More information regarding these and other risks, uncertainties and factors is contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021, as filed with the SEC, and in other reports filed by the Company with the SEC from time to time. You are cautioned not to unduly rely on these forward-looking statements, which speak only as of the date of this press release. All information in this press release and its attachments is as of the date stated and unless required by law, The Company undertakes no obligation to publicly revise any forward-looking statement to reflect circumstances or events after the date of this press release or to report the occurrence of unanticipated events other than as required by law or regulation.
Item 9.01 Financial Statements and Exhibits
(d) Exhibits

| Exhibit | Description
| 99.1 | Press release dated February 7, 202 3.
| 99.2 | Slides of A10 Network, Inc. dated February 7, 202 3, regarding financial results of the fourth quarter ended Dec ember 3 1, 2022.

SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: February 7, 2023

| A10 NETWORKS, INC.
| By: /s/ Brian Becker
| Brian Becker
| Chief Financial Officer (Principal Accounting and Financial Officer)