8-K

A10 Networks, Inc. (ATEN)

8-K 2024-11-07 For: 2024-11-07
View Original
Added on April 04, 2026

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

November 7, 2024

Date of Report (Date of earliest event reported)

____________________________________________________________________________

A10 Logo JPEG.jpg

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 November 7, 2024, A10 Networks, Inc. (the “Company”) issued a press release regarding financial results for the quarter ended September 30, 2024. A copy of the press release is furnished herewith as Exhibit 99.1.

Item 7.01    Regulation FD Disclosure

On November 7, 2024, the Company posted on its website (www.a10networks.com) slides regarding the financial results for the quarter ended September 30, 2024. 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 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 November 7, 2024, the Company announced that its Board of Directors (the “Board”) approved a quarterly dividend. The quarterly dividend, in the amount of $0.06 per share, will be payable, subject to any prior revocation, on December 2, 2024 to stockholders of record on November 18, 2024. 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 the Company’s capital allocation strategy from time-to-time.

Also on November 7, 2024, the Company announced its Board of Directors authorized a new repurchase program (the “2024 Program”) under which the Company may repurchase up to $50 million of its outstanding common stock. The 2024 Program does not have a specified term or termination date. Under the 2024 Program, the Company is authorized to repurchase shares of common stock in privately negotiated transactions, and/or open market transactions, including under plans complying with Rule 10b5-1 under the Exchange Act, and in block trades, or a combination of the foregoing. The Board will review the share repurchase program periodically and may authorize adjustment of its term and size. The Company plans to fund repurchases from its existing cash balance and cash provided by operating activities.

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, 2023, 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 datedNovemberq3-24exx99111072024earning.htm7, 2024.
99.2 Slides of A10 Network, Inc. datedNovemberatenq32024earningscallsl.htm7, 2024, regarding financial results of thethirdquarter endedSeptember30, 2024.

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: November 7, 2024

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

Document

EXHIBIT 99.1

a10logo.jpg

A10 Networks Reports Financial Results for the Third Quarter of 2024

Improving Demand from Service Providers and continued Enterprise Execution Drive Revenue Growth, Profitability

SAN JOSE, Calif., November 7, 2024 -- A10 Networks, Inc. (NYSE: ATEN or the "Company"), a leading provider of cybersecurity and infrastructure solutions, today announced financial results for its third quarter ended September 30, 2024.

Third Quarter 2024 Financial Summary

•Revenue of $66.7 million, compared to $57.8 million in the third quarter of 2023. Revenue for the first nine months of 2024 was $187.5 million, compared to $181.3 million for the first nine months of 2023.

•GAAP gross margin of 80.5%; non-GAAP gross margin of 81.3% as a result of continued focus on operational execution of business model goals.

•GAAP net income of $12.6 million (18.9% of revenue), or $0.17 per diluted share, compared to net income of $6.5 million (11.2% of revenue) or $0.09 per diluted share in the third quarter of 2023.

•Non-GAAP net income of $15.9 million (23.9% of revenue), or $0.21 per diluted share (non-GAAP EPS) compared to non-GAAP net income of $12.0 million (20.8% of revenue) or $0.16 per diluted share in the third quarter of 2023.

•The Company completed the quarter with cash and investments of $182.1 million, up from $159.3 million as of December 31, 2023. A10 generated $21.0 million in cash from operations during the quarter.

•The Company returned $13.9 million to investors, having repurchased 747,000 shares at an average price of $12.64 per share for a total of $9.4 million and having paid $4.4 million in cash dividends in the quarter.

•The Board of Directors approved a quarterly cash dividend of $0.06 per share, payable December 2, 2024, to stockholders of record at the close of business on November 18, 2024. The Board of Directors also authorized a new common stock repurchase program for up to $50 million.

A reconciliation between GAAP and non-GAAP information is contained in the financial statements below.

“Our third quarter results reflect the strength of our business and the value we provide our customers,” commented Dhrupad Trivedi, A10 Network’s President and Chief Executive Officer. “Revenue from Enterprise customers continues to grow, in line with our stated strategy. Revenue from North American service provider customers resumed growth, demonstrating the market’s need for our evolving product portfolio. Our solutions remain designed into customer buildout plans, and while sales cycles have elongated and spending decisions are more carefully considered, our solutions are increasingly critical for evolving networks.”

“A10 continues to leverage AI technology and we announced plans for a blueprint to integrate AI into multiple facets of our business including enhanced security solutions to address new threats posed by AI traffic,” added Trivedi. “We have accelerated our investment in R&D consistent with our strategy. Building upon our industry-leading operating system, the new A10 Control platform provides integrated management and ease of use across our best-in-class security and infrastructure solutions.”

“The overall market environment remains volatile, and A10 is navigating these challenges efficiently based on the durability of our business,” concluded Trivedi. “Security-led revenue now represent 63% of total revenue in the quarter, demonstrating A10’s continued evolution to a cybersecurity-focused organization that increasingly leverages AI tools to benefit customers. We have aligned our cost structure to enable consistent profitability despite macro uncertainty, and when the market improves, we deliver increased operating leverage.”

Conference Call

Management will host a call at 1:30 p.m. Pacific time (4:30 p.m. Eastern time) today, Thursday, November 7, 2024, to discuss these results. Interested parties may access the conference call by dialing (833) 470-1428 (toll-free) or (404) 975-4839 and referencing access code: 713043.

A live audio webcast of the conference call will be accessible from the “Investor Relations” section of A10 Network’s website at investors.a10networks.com. The webcast will be archived for at least 90 days. A telephonic replay of the

conference call will be available two hours after the conclusion of the live call and will run for seven days and may be accessed by dialing (866) 813-9403 (toll-free) or (929) 458-6194 and entering the passcode 350985.

Forward-Looking Statements

This press release contains “forward-looking statements,” including statements regarding our quarterly dividend payments and stock repurchase program, strategy, including as to AI, growth, demand, positioning, products, profitability, revenue and cash expectations for 2024, market trends, investments and return of capital. Forward-looking statements are subject to known and unknown risks and uncertainties and are based on assumptions that may prove to be incorrect, which could cause actual results to differ materially from those expected or implied by the forward-looking statements. Factors that may cause actual results to differ include any unforeseen need for capital which may require us to divert funds we may have otherwise used for the dividend program or stock repurchase program, which may in turn negatively impact our ability to administer the quarterly dividends or the repurchase of our common stock; a significant decline in global macroeconomic or political conditions that have an adverse impact on our business and financial results; business interruptions related to our supply chain; our ability to manage our business and expenses if customers cancel or delay orders; execution risks related to closing key deals and improving our execution; the continued market adoption of our products; our ability to successfully anticipate market needs and opportunities; our timely development of new products and features; our ability to achieve or maintain profitability; any loss or delay of expected purchases by our largest end-customers; our ability to maintain or improve our competitive position; competitive and execution risks related to cloud-based computing trends; our ability to attract and retain new end-customers and our largest end-consumers; our ability to maintain and enhance our brand and reputation; changes demanded by our customers in the deployment and payment model for our products; continued growth in markets relating to network security; the success of any future acquisitions or investments in complementary companies, products, services or technologies; the ability of our sales team to execute well; our ability to shorten our close cycles; the ability of our channel partners to sell our products; variations in product mix or geographic locations of our sales; risks associated with our presence in international markets; weaknesses or deficiencies in our internal control over financial reporting; our ability to timely file periodic reports required to be filed under the Securities Exchange Act of 1934; and other risks that are described in “Risk Factors” in our periodic filings with the Securities and Exchange Commission, including our Form 10-K filed with the Securities and Exchange Commission on February 29, 2024. We do not intend to update or alter our forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law.

Non-GAAP Financial Measures

In addition to disclosing financial measures prepared in accordance with U.S. generally accepted accounting principles (GAAP), we refer to certain non-GAAP financial measures, including non-GAAP net income, non-GAAP net income per basic and diluted share (or non-GAAP EPS), non-GAAP gross profit and gross margin, non-GAAP operating income and operating margin, non-GAAP operating expenses, Adjusted EBITDA and Adjusted EBITDA margin. Non-GAAP financial measures do not have any standardized meaning and are therefore unlikely to be comparable to similarly titled measures presented by other companies.

A10 Networks considers these non-GAAP financial measures to be important because they provide useful measures of the operating performance of the company, exclusive of unusual events or factors that do not directly affect what we consider to be our core operating performance and are used by the company's management for that purpose.

Non-GAAP financial measures should not be considered in isolation from, or as a substitute for, financial information prepared in accordance with GAAP.

We define non-GAAP net income as our GAAP net income excluding: (i) stock-based compensation and related payroll tax, (ii) impairment expense, (iii) workforce reduction expense, (iv) cyber incident remediation expense, (v) one-time tax planning expense, (vi) one-time legal expense and (vii) income tax effect of non-GAAP items (i) to (vi) listed above. We define non-GAAP net income per basic and diluted share as our non-GAAP net income divided by our basic and diluted weighted-average shares outstanding. We define non-GAAP gross profit as our GAAP gross profit excluding (i) stock-based compensation and related payroll tax, (ii) workforce reduction expense and (iii) cyber incident remediation expense. We define non-GAAP gross margin as our non-GAAP gross profit divided by our GAAP revenue. We define non-GAAP operating expenses as our GAAP operating expenses excluding (i) stock-based compensation and related payroll tax, (ii) impairment expense, (iii) workforce reduction expense, (iv) cyber incident remediation expense, (v) one-time tax planning expense and (vi) one-time legal expense. We define non-GAAP operating income as our GAAP income from operations excluding (i) stock-based compensation and related payroll tax, (ii) impairment expense, (iii) workforce reduction expense, (iv) cyber incident remediation expense, (v) one-time tax planning expense and (vi) one-time legal expense. We define non-GAAP operating margin as our non-GAAP operating income divided by our GAAP revenue. We define Adjusted EBITDA as our GAAP net income excluding (i) interest and other (income) expense, net, (ii) depreciation and amortization expense, (iii) provision for income taxes, (iv) stock-based compensation and related payroll tax, (v) impairment expense, (vi) workforce reduction expense, (vii) cyber incident remediation expense, (viii) one-time tax planning expense and (ix) one-time legal expense. We define Adjusted EBITDA margin as our Adjusted EBITDA divided by our GAAP revenue.

Non-GAAP financial measures are presented for supplemental informational purposes only for understanding the company's operating results.

About A10 Networks

A10 Networks (NYSE: ATEN) provides security and infrastructure solutions for on-premises, hybrid cloud, and edge-cloud environments. Our 7000+ customers span global large enterprises and communications, cloud and web service providers who must ensure business-critical applications and networks are secure, available, and efficient. Founded in 2004, A10 Networks is based in San Jose, Calif. and serves customers globally. For more information, visit A10networks.com and follow us at A10Networks.

The A10 logo and A10 Networks are trademarks or registered trademarks of A10 Networks, Inc. in the United States and other countries. All other trademarks are the property of their respective owners.

Investor Contact:

Rob Fink / Tom Baumann

FNK IR

646.809.4048 / 646.349.6641

aten@fnkir.com

Brian Becker

Chief Financial Officer

investors@a10networks.com

Source: A10 Networks, Inc.

A10 NETWORKS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited, in thousands, except per share amounts, on a GAAP Basis)

Three Months Ended September 30, Nine Months Ended September 30,
2024 2023 2024 2023
Net revenue:
Products $ 36,862 $ 30,260 $ 96,464 $ 100,532
Services 29,859 27,515 91,028 80,751
Total net revenue 66,721 57,775 187,492 181,283
Cost of net revenue:
Products 7,531 6,815 21,143 22,334
Services 5,508 4,194 15,378 12,354
Total cost of net revenue 13,039 11,009 36,521 34,688
Gross profit 53,682 46,766 150,971 146,595
Operating expenses:
Sales and marketing 21,011 21,324 61,678 64,526
Research and development 15,734 17,620 44,533 43,250
General and administrative 6,494 5,613 19,188 18,177
Total operating expenses 43,239 44,557 125,399 125,953
Income from operations 10,443 2,209 25,572 20,642
Non-operating income, net:
Interest income 1,634 1,766 5,077 3,401
Other income, net 2,312 987 5,943 653
Non-operating income, net 3,946 2,753 11,020 4,054
Income before provision for (benefit from) income taxes 14,389 4,962 36,592 24,696
Provision for (benefit from) income taxes 1,752 (1,507) 4,753 2,643
Net income $ 12,637 $ 6,469 $ 31,839 $ 22,053
Net income per share:
Basic $ 0.17 $ 0.09 $ 0.43 $ 0.30
Diluted $ 0.17 $ 0.09 $ 0.42 $ 0.29
Weighted-average shares used in computing net income per share:
Basic 73,823 74,526 74,200 74,184
Diluted 74,780 75,807 75,236 75,639

A10 NETWORKS, INC.

RECONCILIATION OF GAAP NET INCOME TO NON-GAAP NET INCOME

(unaudited, in thousands, except per share amounts)

Three Months Ended September 30, Nine Months Ended September 30,
2024 2023 2024 2023
GAAP net income $ 12,637 $ 6,469 $ 31,839 $ 22,053
Non-GAAP items:
Stock-based compensation and related payroll tax 4,516 4,255 12,814 11,752
Impairment expense 2,975 2,975
Workforce reduction expense 2,437 4,298
Cyber incident remediation expense 732
One-time tax planning expense 100 500
One-time legal expense 71
Income tax-effect of non-GAAP items (1,327) (4,140) (3,343) (5,358)
Total non-GAAP items 3,289 5,527 10,042 14,399
Non-GAAP net income $ 15,926 $ 11,996 $ 41,881 $ 36,452
GAAP net income per share:
Basic $ 0.17 $ 0.09 $ 0.43 $ 0.30
Diluted $ 0.17 $ 0.09 $ 0.42 $ 0.29
Non-GAAP items:
Stock-based compensation and related payroll tax 0.06 0.06 0.17 0.15
Impairment expense 0.04 0.04
Workforce reduction expense 0.03 0.06
Cyber incident remediation expense 0.01
One-time tax planning expense 0.01
One-time legal expense
Income tax-effect of non-GAAP items (0.02) (0.06) (0.04) (0.07)
Total non-GAAP items 0.04 0.07 0.14 0.19
Non-GAAP net income per share:
Basic $ 0.22 $ 0.16 $ 0.56 $ 0.49
Diluted $ 0.21 $ 0.16 $ 0.56 $ 0.48
Weighted average shares used in computing net income per share:
Basic 73,823 74,526 74,200 74,184
Diluted 74,780 75,807 75,236 75,639

Net income and earnings per share excluding adjustments are non-GAAP financial measures presented as supplemental financial measures to enable a user of the financial information to understand the impact of these adjustments on reported results. These financial measures should not be considered an alternative to net income, operating income, cash flows provided by operating activities, or any other measure of financial performance or liquidity presented in accordance with U.S. GAAP. Our adjusted net income and earnings per share may not be comparable to similarly titled measures of another company because companies may not all calculate adjusted net income and earnings per share in the same manner.

A10 NETWORKS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited, in thousands, except par value, on a GAAP Basis)

September 30,<br>2024 December 31,<br>2023
ASSETS
Current assets:
Cash and cash equivalents $ 78,063 $ 97,244
Marketable securities 104,043 62,056
Accounts receivable, net of allowances of $1,171 and $405, respectively 64,949 74,307
Inventory 23,417 23,522
Prepaid expenses and other current assets 13,365 14,695
Total current assets 283,837 271,824
Property and equipment, net 37,313 29,876
Goodwill 1,307 1,307
Deferred tax assets, net 62,632 62,725
Other non-current assets 22,658 24,077
Total assets $ 407,747 $ 389,809
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable $ 7,544 $ 7,024
Accrued liabilities 29,985 21,388
Deferred revenue 89,509 82,657
Total current liabilities 127,038 111,069
Deferred revenue, non-current 54,710 58,677
Other non-current liabilities 8,729 12,187
Total liabilities 190,477 181,933
Stockholders' equity:
Common stock, $0.00001 par value: 500,000 shares authorized; 90,249 and 89,003 shares issued and 73,783 and 74,359 shares outstanding, respectively 1 1
Treasury stock, at cost: 16,467 and 14,644 shares, respectively (175,230) (150,909)
Additional paid-in-capital 501,918 486,958
Dividends paid (50,988) (37,619)
Accumulated other comprehensive income (loss) 214 (71)
Accumulated deficit (58,645) (90,484)
Total stockholders' equity 217,270 207,876
Total liabilities and stockholders' equity $ 407,747 $ 389,809

A10 NETWORKS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited, in thousands, on a GAAP Basis)

Nine Months Ended September 30,
2024 2023
Cash flows from operating activities:
Net income $ 31,839 $ 22,053
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization 8,248 6,845
Stock-based compensation 12,284 11,180
Other non-cash items (1,013) 774
Changes in operating assets and liabilities:
Accounts receivable 8,378 14,056
Inventory (1,911) (5,313)
Prepaid expenses and other assets 753 2,033
Accounts payable (1,820) (1,183)
Accrued liabilities 5,139 (17,384)
Deferred revenue 2,885 8,722
Net cash provided by operating activities 64,782 41,783
Cash flows from investing activities:
Proceeds from sales of marketable securities 22,536 42,252
Proceeds from maturities of marketable securities 66,446 54,007
Purchases of marketable securities (127,288) (75,064)
Capital expenditures (9,886) (7,752)
Net cash provided by (used in) investing activities (48,192) 13,443
Cash flows from financing activities:
Proceeds from issuance of common stock under employee equity incentive plans 1,919 2,996
Repurchase of common stock (24,321) (8,672)
Payments for dividends (13,369) (13,369)
Net cash used in financing activities (35,771) (19,045)
Net increase (decrease) in cash and cash equivalents (19,181) 36,181
Cash and cash equivalents—beginning of period 97,244 67,971
Cash and cash equivalents—end of period $ 78,063 $ 104,152
Non-cash investing and financing activities:
Transfers between inventory and property and equipment $ 2,015 $ 1,445
Purchases of property and equipment included in accounts payable $ 2,340 $ 2,672

A10 NETWORKS, INC.

RECONCILIATION OF GAAP GROSS PROFIT TO NON-GAAP GROSS PROFIT

(unaudited, in thousands, except percentages)

Three Months Ended September 30, Nine Months Ended September 30,
2024 2023 2024 2023
GAAP gross profit $ 53,682 $ 46,766 $ 150,971 $ 146,595
GAAP gross margin 80.5 % 80.9 % 80.5 % 80.9 %
Non-GAAP adjustments:
Stock-based compensation and related payroll tax 534 512 1,568 1,373
Workforce reduction expense 42
Cyber incident remediation expense 3
Non-GAAP gross profit $ 54,216 $ 47,278 $ 152,539 $ 148,013
Non-GAAP gross margin 81.3 % 81.8 % 81.4 % 81.6 %

A10 NETWORKS, INC.

RECONCILIATION OF GAAP TOTAL OPERATING EXPENSES

TO NON-GAAP TOTAL OPERATING EXPENSES

(unaudited, in thousands)

Three Months Ended September 30, Nine Months Ended September 30,
2024 2023 2024 2023
GAAP total operating expenses $ 43,239 $ 44,557 $ 125,399 $ 125,953
Non-GAAP adjustments:
Stock-based compensation and related payroll tax (3,982) (3,743) (11,246) (10,379)
Impairment expense (2,975) (2,975)
Workforce reduction expense (2,437) (4,256)
Cyber incident remediation expense (729)
One-time tax planning expense (100) (500)
One-time legal expense (71)
Non-GAAP total operating expenses $ 39,157 $ 35,402 $ 113,582 $ 107,614

A10 NETWORKS, INC.

RECONCILIATION OF GAAP INCOME FROM OPERATIONS

TO NON-GAAP OPERATING INCOME

(unaudited, in thousands, except percentages)

Three Months Ended September 30, Nine Months Ended September 30,
2024 2023 2024 2023
GAAP income from operations $ 10,443 $ 2,209 $ 25,572 $ 20,642
GAAP operating margin 15.7 % 3.8 % 13.6 % 11.4 %
Non-GAAP adjustments:
Stock-based compensation and related payroll tax 4,516 4,255 12,814 11,752
Impairment expense 2,975 2,975
Workforce reduction expense 2,437 4,298
Cyber incident remediation expense 732
One-time tax planning expense 100 500
One-time legal expense 71
Non-GAAP operating income $ 15,059 $ 11,876 $ 38,957 $ 40,399
Non-GAAP operating margin 22.6 % 20.6 % 20.8 % 22.3 %

A10 NETWORKS, INC.

RECONCILIATION OF GAAP NET INCOME TO

EBITDA AND ADJUSTED EBITDA (NON-GAAP)

(unaudited, in thousands, except percentages)

Three Months Ended September 30, Nine Months Ended September 30,
2024 2023 2024 2023
GAAP net income $ 12,637 $ 6,469 $ 31,839 $ 22,053
GAAP net income margin 18.9 % 11.2 % 17.0 % 12.2 %
Exclude: Interest and other income, net (3,946) (2,753) (11,020) (4,054)
Exclude: Depreciation and amortization 2,741 2,537 8,248 6,845
Exclude: Provision for income taxes 1,752 (1,507) 4,753 2,643
EBITDA 13,184 4,746 33,820 27,487
Exclude: Stock-based compensation and related payroll tax 4,516 4,255 12,814 11,752
Exclude: Impairment expense 2,975 2,975
Exclude: Workforce reduction expense 2,437 4,298
Exclude: Cyber incident remediation expense 732
Exclude: One-time tax planning expense 100 500
Exclude: One-time legal expense 71
Adjusted EBITDA $ 17,800 $ 14,413 $ 47,205 $ 47,244
Adjusted EBITDA margin 26.7 % 24.9 % 25.2 % 26.1 %

atenq32024earningscallsl

Q3 2024 Financial Results & Commentary November 7, 2024


Cautionary Statements & Disclosures This presentation and the accompanying oral presentation contain “forward-looking” statements that are based on our management’s beliefs and assumptions, including statements regarding our future financial performance, strategy, demand, positioning, capital allocation strategy and value creation, and market and technology trends. Forward-looking statements are subject to known and unknown risks and uncertainties and are based on assumptions that may prove to be incorrect, which could cause actual results to differ materially from those expected or implied by the forward-looking statements. Factors that may cause actual results to differ include any unforeseen need for capital which may require us to divert funds we may have otherwise used for the dividend program or stock repurchase program, which may in turn negatively impact our ability to administer the quarterly dividends or the repurchase of our common stock; a significant decline in global macroeconomic or political conditions that have an adverse impact on our business and financial results; business interruptions related to our supply chain; our ability to manage our business and expenses if customers cancel or delay orders; execution risks related to closing key deals and improving our execution; the continued market adoption of our products; our ability to successfully anticipate market needs and opportunities; our timely development of new products and features; our ability to achieve or maintain profitability; any loss or delay of expected purchases by our largest end-customers; our ability to maintain or improve our competitive position; competitive and execution risks related to cloud-based computing trends; our ability to attract and retain new end-customers and our largest end-consumers; our ability to maintain and enhance our brand and reputation; changes demanded by our customers in the deployment and payment model for our products; continued growth in markets relating to network security; the success of any future acquisitions or investments in complementary companies, products, services or technologies; the ability of our sales team to execute well; our ability to shorten our close cycles; the ability of our channel partners to sell our products; variations in product mix or geographic locations of our sales; risks associated with our presence in international markets; weaknesses or deficiencies in our internal control over financial reporting; our ability to timely file periodic reports required to be filed under the Securities Exchange Act of 1934; and other risks that are described in “Risk Factors” in our periodic filings with the Securities and Exchange Commission, including our Form 10-K filed with the Securities and Exchange Commission on February 29, 2024. We do not intend to update or alter our forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law. This presentation and the accompanying oral presentation also include certain non-GAAP financial measures including Non-GAAP gross margin, non-GAAP operating income, non-GAAP net income, non-GAAP operating margin, Adjusted EBITDA and Non-GAAP EPS. Non-GAAP financial measures do not have any standardized meaning and are therefore unlikely to be comparable to similarly titles measures presented by other companies. A10 Networks considers these non-GAAP financial measures to be important because they provide useful measures of the operating performance of the company, exclusive of unusual events or factors that do not directly affect what we consider to be our core operating performance and are used by the company’s management for that purpose. Non-GAAP financial measures should not be considered in isolation from, or as a substitute for, financial information prepared in accordance with GAAP. We define non-GAAP net income as our GAAP net income excluding: (i) stock-based compensation and related payroll tax, (ii) impairment expense, (iii) workforce reduction expense, (iv) cyber incident remediation expense, (v) one-time tax planning expense, (vi) one-time legal expense and (vii) income tax effect of non-GAAP items (i) to (vi) listed above. We define non-GAAP net income per basic and diluted share as our non-GAAP net income divided by our basic and diluted weighted-average shares outstanding. We define non-GAAP gross profit as our GAAP gross profit excluding (i) stock-based compensation and related payroll tax, (ii) workforce reduction expense and (iii) cyber incident remediation expense. We define non-GAAP gross margin as our non-GAAP gross profit divided by our GAAP revenue. We define non-GAAP operating expenses as our GAAP operating expenses excluding (i) stock-based compensation and related payroll tax, (ii) impairment expense, (iii) workforce reduction expense, (iv) cyber incident remediation expense, (v) one-time tax planning expense and (vi) one-time legal expense. We define non-GAAP operating income as our GAAP income from operations excluding (i) stock-based compensation and related payroll tax, (ii) impairment expense, (iii) workforce reduction expense, (iv) cyber incident remediation expense, (v) one-time tax planning expense and (vi) one-time legal expense. We define non-GAAP operating margin as our non-GAAP operating income divided by our GAAP revenue. We define Adjusted EBITDA as our GAAP net income excluding (i) interest and other (income) expense, net, (ii) depreciation and amortization expense, (iii) provision for income taxes, (iv) stock-based compensation and related payroll tax, (v) impairment expense, (vi) workforce reduction expense, (vii) cyber incident remediation expense, (viii) one-time tax planning expense and (ix) one-time legal expense. We define Adjusted EBITDA margin as our Adjusted EBITDA divided by our GAAP revenue. A reconciliation between GAAP and non-GAAP financial measures can be found in the appendix to this document and in the accompanying financial results press release.


Agenda ▪ Q3 2024 Overview ▪ Q3 Financial Performance ▪ Expanded Cybersecurity Platform


Q3’24: Enterprise Improvement, Service Provider Uptick Revenue Overview • Q3 Revenue increased 15.5% year-over-year • YTD Revenue increased 3.4% year-over-year • On YTD basis, Enterprise revenue increased 5.5% YOY and Service Provider revenue increased 2% YOY Consistent Profitability • Non-GAAP gross margins of 81.3% in Q3'24 • GAAP EPS of $0.17 compared to $0.09 in Q3’23 • Non-GAAP EPS of $0.21 compared to $0.16 in Q3’23 Key Takeaways • Resumption of revenue growth and profitability in line with expectations • Early signs of recovery in the North American Service Provider segment • Continued growth in Enterprise segment • Accelerating investment in Security and AI solutions See Appendix for reconciliation to most comparable GAAP financial measures.


Quarterly Revenue & Adjusted EBITDA Operating Income is a Non-GAAP Financial Measure. See Appendix for reconciliation to most comparable GAAP financial measures. $57.8 $70.4 $60.7 $60.1 $66.7 Q3'23 Q4'23 Q1'24 Q2'24 Q3'24 Revenue, $ Millions $14.4 $23.9 $13.9 $15.5 $17.8 Q3'23 Q4'23 Q1'24 Q2'24 Q3'24 Adjusted EBITDA, $ Millions $57.8 $66.7 Q3'23 Q3'24 Revenue, $ Millions $14.4 $17.8 Q3'23 Q3'24 Adjusted EBITDA, $ Millions


Quarterly Revenue by Customer Vertical $105.7 $107.8 Q3'23 YTD Q3'24 YTD YTD Service Provider Revenue, $ Millions $25.1 $21.4 $29.0 $29.3 $23.0 $26.7 $30.0 $32.6 $44.4 $28.7 $41.1 $37.7 $33.4 $36.7 Q1'23 Q2'23 Q3'23 Q4'23 Q1'24 Q2'24 Q3'24 Revenue, $ Millions Service Provider Enterprise $75.6 $79.7 Q3'23 YTD Q3'24 YTD Enterprise Revenue, $ Millions


Quarterly Revenue by Geography 52% 56% 45% 57% 45% 51% 51% 27% 33% 37% 26% 41% 32% 35% 21% 11% 19% 16% 14% 17% 14% Q1'23 Q2'23 Q3'23 Q4'23 Q1'24 Q2'24 Q3'24 $ Millions Americas APJ EMEA 51% 35% 14% Q3’24 $66.7 million


A10 and AI A10 has deep history in using AI in security products, positioning us to support our customer’s roadmap Enable next-gen datacenters with ultra- low-latency AI-ready platform, systems and solutions Improve response time of security solutions Protect and secure sensitive data Provide predictive performance insights 1 2 3 4


Consistent Value Creation Business Model Revenue Growth Capital Allocation


Appendix


Financial Performance Trends Numbers may not sum due to rounding. Please refer to the supplemental financials posted in the “Investor Relations” section of the A10 Networks website at investors.a10networks.com Gross Margin %, Operating Margin %, Adjusted EBITDA and EPS are Non-GAAP Financial Measures. See Appendix for reconciliation to most comparable GAAP financial measures. $ Millions (except EPS) Q1’21 Q2’21 Q3’21 Q4’21 FY 2021 Q1’22 Q2’22 Q3’22 Q4’22 FY 2022 Q1’23 Q2’23 Q3’23 Q4’23 FY 2023 Q1’24 Q2’24 Q3’24 Revenue $54.8 $59.2 $65.4 $70.7 $250.0 $62.7 $68.0 $72.1 $77.6 $280.3 $57.7 $65.8 $57.8 $70.4 $251.7 $60.7 $60.1 $66.7 Non-GAAP Gross Margin % 78.9% 77.9% 80.4% 80.7% 79.6% 80.2% 80.6% 80.2% 80.3% 80.3% 83.1% 80.2% 81.8% 81.8% 81.7% 81.9% 80.9% 81.3% Non-GAAP Operating Margin % 19.7% 18.8% 22.2% 24.8% 21.6% 18.6% 23.7% 27.0% 25.5% 23.9% 23.1% 23.1% 20.6% 30.4% 24.6% 18.5% 21.1% 22.6% Adjusted EBITDA (non-GAAP) $13.0 $13.2 $16.8 $19.4 $62.4 $13.5 $18.0 $21.3 $22.3 $75.1 $15.5 $17.4 $14.4 $23.9 $71.2 $13.9 $15.5 $17.8 Non-GAAP EPS $0.12 $0.13 $0.17 $0.20 $0.63 $0.13 $0.17 $0.20 $0.24 $0.74 $0.13 $0.19 $0.16 $0.25 $0.73 $0.17 $0.18 $0.21 Ending Cash & Marketable Securities $161.0 $166.8 $187.5 $185.0 $185.0 $164.7 $166.8 $127.8 $151.0 $151.0 $144.5 $153.9 $169.0 $159.3 $159.3 $182.1 $177.1 $182.1


GAAP to Non-GAAP – Gross Margin and EPS Numbers may not sum due to rounding. EPS data is presented on a basic and diluted basis. Please refer to the supplemental financials posted the “Investor Relations” section of the A10 Networks website at investors.a10networks.com. Q1'23 Q2'23 Q3'23 Q4'23 Dec 31 2023 Q1'24 Q2'24 Q3'24 Revenue 57.7$ 65.8$ 57.8$ 70.4$ 251.7$ 60.7$ 60.1$ 66.7$ Gross Margin % - Non-GAAP 83.1% 80.2% 81.8% 81.8% 81.7% 81.9% 80.9% 81.3% Income from operations % - Non-GAAP 23.1% 23.1% 20.6% 30.4% 24.6% 18.5% 21.1% 22.6% Adjusted EBITDA - Non-GAAP 15.5$ 17.4$ 14.4$ 23.9$ 71.2$ 13.9$ 15.5$ 17.8$ EPS $ - Non-GAAP 0.13$ 0.19$ 0.16$ 0.25$ 0.73$ 0.17$ 0.18$ 0.21$ Ending Cash & Marketable Securities 144.5$ 153.9$ 169.0$ 159.3$ 159.3$ 182.1$ 177.1$ 182.1$ Year Ended


GAAP to Non-GAAP – Operating Income Numbers may not sum due to rounding. Please refer to the supplemental financials posted the “Investor Relations” section of the A10 Networks website at investors.a10networks.com. Q3’23 $ Millions Q1'23 Q2'23 Q3'23 Q4'23 Dec 31 2023 Q1'24 Q2'24 Q3'24 Income from operations $ - GAAP 6.2$ 12.3$ 2.2$ 18.0$ 38.6$ 7.2$ 7.9$ 10.4$ Stock-based compensation 4.0 3.5 4.3 2.9 14.7 4.0 4.3 4.5 One-time tax planning expense - - - 0.5 0.5 - 0.4 0.1 Capitalized project impairment - - 3.0 - 3.0 - - - One-time legal expense - - - - - - 0.1 - Workforce reduction severance 1.9 - 2.4 - 4.3 - - - Cyber incident remediation expense 1.4 (0.6) - - 0.7 - - - Income from operations $ - Non-GAAP 13.4$ 15.2$ 11.9$ 21.4$ 61.8$ 11.2$ 12.7$ 15.1$ % of Revenue Income from operations % - GAAP 10.7 % 18.6 % 3.8 % 25.6 % 15.4 % 11.9 % 13.2 % 15.7 % Stock-based compensation 6.9 % 5.4 % 7.5 % 4.1 % 5.8 % 6.6 % 7.2 % 6.8 % One-time tax planning expense —% —% —% 0.7 % 0.2 % —% 0.7 % 0.1 % Capitalized project impairment —% —% 5.1 % —% 1.2 % —% —% —% One-time legal expense —% —% —% —% —% —% 0.1 % —% Workforce reduction severance 3.2 % —% 4.2 % —% 1.7 % —% —% —% Cyber incident remediation expense 2.3 % (0.9)% —% —% 0.3 % —% —% —% Income from operations % - Non-GAAP 23.1 % 23.1 % 20.6 % 30.4 % 24.6 % 18.5 % 21.1 % 22.6 % Year Ended


GAAP to Non-GAAP – Adjusted EBITDA Numbers may not sum due to rounding. Please refer to the supplemental financials posted the “Investor Relations” section of the A10 Networks website at investors.a10networks.com. $ Millions Q1'23 Q2'23 Q3'23 Q4'23 Dec 31 2023 Q1'24 Q2'24 Q3'24 GAAP net income 4.0$ 11.6$ 6.5$ 17.9$ 40.0$ 9.7$ 9.5$ 12.6$ Exclude: Interest income and other (income) expense, net 1.2 (2.5) (2.8) (1.1) (5.1) (4.0) (3.1) (3.9) Exclude: Depreciation & amortization expense 2.1 2.2 2.5 2.5 9.3 2.7 2.8 2.7 Exclude: Provision (benefit) for income taxes 1.0 3.2 (1.5) 1.2 3.8 1.5 1.5 1.8 EBITDA 8.3 14.5 4.7 20.5 48.0 9.9 10.7 13.2 Exclude: Stock-based compensation 4.0 3.5 4.3 2.9 14.7 4.0 4.3 4.5 Exclude: One-time tax planning expense - - - 0.5 0.5 - 0.4 0.1 Exclude: Capitalized project impairment - - 3.0 - 3.0 - - - Exclude: One-time legal expense - - - - - - 0.1 - Exclude: Workforce reduction severance 1.9 - 2.4 - 4.3 - - - Exclude: Cyber incident remediation expense 1.4 (0.6) - - 0.7 - - - Adjusted EBITDA - Non-GAAP 15.5$ 17.4$ 14.4$ 23.9$ 71.2$ 13.9$ 15.5$ 17.8$ Year Ended