8-K

A10 Networks, Inc. (ATEN)

8-K 2025-02-04 For: 2025-02-04
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

February 4, 2025

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 February 4, 2025, A10 Networks, Inc. (the “Company”) issued a press release regarding financial results for the quarter ended December 31, 2024. A copy of the press release is furnished herewith as Exhibit 99.1.

Item 7.01    Regulation FD Disclosure

On February 4, 2025, the Company posted on its website (www.a10networks.com) slides regarding the financial results for the quarter and year ended December 31, 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 February 4, 2024, 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 3, 2025 to stockholders of record on February 14, 2025. 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.

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 dated February4, 2025.
99.2 Slides of A10 Network, Inc. dated February4, 2025, regarding financial results of the fourth quarter ended December 31, 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: February 4, 2025

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 Fourth Quarter and Full Year 2024 Financial Results

Demand Recovery from Service Providers and Continued Execution in Enterprise Business

SAN JOSE, Calif., February 4, 2025 -- A10 Networks, Inc. (NYSE: ATEN or the “Company”), a leading provider of cybersecurity and infrastructure solutions, today announced financial results for its fourth quarter and full year ended December 31, 2024.

Fourth Quarter 2024 Financial Summary

•Revenue of $74.2 million, compared to $70.4 million in the fourth quarter of 2023, representing a 5% increase.

•Enterprise revenue grew 8% for the quarter year-over-year, and service provider revenue grew 4%.

•GAAP gross margin of 79.9%; non-GAAP gross margin of 80.7%.

•GAAP net income was $18.3 million (24.7% of revenue), or $0.24 per diluted share, compared to net income of $17.9 million (25.4% of revenue) or $0.24 per diluted share in the fourth quarter of 2023.

•Non-GAAP net income of $23.0 million (30.9% of revenue), or $0.31 per diluted share (non-GAAP EPS) compared to non-GAAP net income of $18.5 million (26.2% of revenue) or $0.25 per diluted share in the fourth quarter of 2023.

•Adjusted EBITDA was $27.3 million (36.8% of revenue) compared to $24.0 million (34.0% of revenue) in the fourth quarter of 2023.

•The Company completed the quarter with cash and investments of $195.6 million, up from $159.3 million as of December 31, 2023. A10 generated $25.7 million in cash from operations during the quarter.

•The Company returned $10.2 million to investors, having repurchased 360,000 shares at an average price of $15.99 per share for a total of $5.8 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 March 3, 2025, to stockholders of record at the close of business on February 14, 2025.

Full-Year 2024 Financial Summary

•Revenue of $261.7 million, up $10.0 million (4.0%) compared to $251.7 million in 2023.

•GAAP net income of $50.1 million (representing 19.2% of revenue), or $0.67 per diluted share.

•Non-GAAP net income of $64.8 million (representing 24.8% of revenue) or $0.86 per diluted share compared to $54.9 million (representing 21.8% of revenue), or $0.73 per diluted share (non-GAAP EPS).

• Adjusted EBITDA margin of 28.5% vs. 28.3% in 2023.

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

“The demand from service provider customers improved throughout the second half of 2024, and we enter 2025 with growing optimism of an ongoing normalization of spending from these customers” commented Dhrupad Trivedi, A10 Network’s President and Chief Executive Officer. “AI continues to serve as a significant catalyst for spending in general, and for A10 customer’s priorities in particular, because of the efficiency of our high throughput, low latency solutions for all operating environments. Our solutions lower the total cost of ownership, utilizing less power and integrated security capabilities, creating a durable competitive advantage within energy-hungry AI data centers.”

“Simultaneously, we delivered significant growth with enterprise customers, and we are investing heavily to further enhance our offerings for these customers,” added Trivedi. “During the coming year, we anticipate launching solutions to further expand our security offerings. We view 2025 as a year that will benefit from several years of R&D investment, furthering our competitive position with both service provider and enterprise customers.”

“As we drive the company transformation to a more agile engineering and delivery model, focused on security and efficiency, we have transformed our processes and systems,” concluded Trivedi. “The continued focus on operational excellence and long-term business model provides a strong foundation for a durable business model delivering consistent returns for all our stakeholders.”

Conference Call

Management will host a call today at 1:30 p.m. Pacific time (4:30 p.m. Eastern time) to discuss the results.

Interested parties may access the conference call by dialing (833) 470-1428 (toll-free) or (404) 975-4839 and referencing access code: 475407.

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 596790.

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.

Forward-Looking Statements

This press release contains “forward-looking statements,” including statements regarding our quarterly dividend payments, strategy, including as to AI, growth, demand, positioning, products, profitability, revenue expectations for 2025, market trends and investments. 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, which may in turn negatively impact our ability to administer the quarterly dividends; 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) tax planning expense, (iv) workforce reduction expense, (v) cyber incident remediation 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) tax planning expense, (iv) workforce reduction expense, (v) cyber incident remediation 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) tax planning expense, (iv) workforce reduction expense, (v) cyber incident remediation 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, net, (ii) depreciation and amortization expense, (iii) provision for income taxes, (iv) stock-based compensation and related payroll tax, (v) impairment expense, (vi) tax planning expense, (vii) workforce reduction expense, (viii) cyber incident remediation 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.

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 December 31, Years Ended December 31,
2024 2023 2024 2023
Revenue:
Products $ 43,335 $ 40,550 $ 139,799 $ 141,082
Services 30,869 29,867 121,897 110,618
Total revenue 74,204 70,417 261,696 251,700
Cost of revenue:
Products 10,075 9,134 31,218 31,468
Services 4,823 4,140 20,201 16,494
Total cost of revenue 14,898 13,274 51,419 47,962
Gross profit 59,306 57,143 210,277 203,738
Operating expenses:
Sales and marketing 21,622 21,450 83,300 85,976
Research and development 13,192 11,979 57,726 55,229
General and administrative 6,096 5,708 25,283 23,885
Total operating expenses 40,910 39,137 166,309 165,090
Income from operations 18,396 18,006 43,968 38,648
Non-operating income (expense):
Interest income 1,671 1,677 6,747 5,078
Interest and other income (expense), net 1,440 (584) 7,384 69
Total non-operating income (expense), net 3,111 1,093 14,131 5,147
Income before income taxes 21,507 19,099 58,099 43,795
Provision for income taxes 3,206 1,182 7,959 3,825
Net income $ 18,301 $ 17,917 $ 50,140 $ 39,970
Net income per share:
Basic $ 0.25 $ 0.24 $ 0.68 $ 0.54
Diluted $ 0.24 $ 0.24 $ 0.67 $ 0.53
Weighted-average shares used in computing net income per share:
Basic 73,691 74,288 74,088 74,210
Diluted 74,975 74,972 75,302 75,550

A10 NETWORKS, INC.

RECONCILIATION OF GAAP NET INCOME TO NON-GAAP NET INCOME

(unaudited, in thousands, except per share amounts)

Three Months Ended December 31, Years Ended December 31,
2024 2023 2024 2023
GAAP net income $ 18,301 $ 17,917 $ 50,140 $ 39,970
Non-GAAP items:
Stock-based compensation and related payroll tax 4,811 2,922 17,625 14,674
Impairment expense 2,975
Tax planning expense 500 500 500
Workforce reduction expense 1,075 1,075 4,298
Cyber incident remediation expense 732
One-time legal expense 71
Income tax-effect of non-GAAP items (1,232) (2,872) (4,575) (8,230)
Total non-GAAP items 4,654 550 14,696 14,949
Non-GAAP net income (1) $ 22,955 $ 18,467 $ 64,836 $ 54,919
GAAP net income per share:
Basic $ 0.25 $ 0.24 $ 0.68 $ 0.54
Diluted $ 0.24 $ 0.24 $ 0.67 $ 0.53
Non-GAAP items:
Stock-based compensation and related payroll tax 0.07 0.04 0.23 0.19
Impairment expense 0.04
Tax planning expense 0.01 0.01 0.01
Workforce reduction expense 0.01 0.01 0.06
Cyber incident remediation expense 0.01
One-time legal expense
Income tax-effect of non-GAAP items (0.01) (0.04) (0.06) (0.11)
Total non-GAAP items 0.07 0.01 0.19 0.20
Non-GAAP net income per share: (1)
Basic $ 0.31 $ 0.25 $ 0.88 $ 0.74
Diluted $ 0.31 $ 0.25 $ 0.86 $ 0.73
Weighted average shares used in computing net income per share:
Basic 73,691 74,288 74,088 74,210
Diluted 74,975 74,972 75,302 75,550

(1)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)

As of December 31, 2024 As of December 31, 2023
ASSETS
Current assets:
Cash and cash equivalents $ 95,129 $ 97,244
Marketable securities 100,429 62,056
Accounts receivable, net of allowances of $465 and $405, respectively 76,687 74,307
Inventory 22,005 23,522
Prepaid expenses and other current assets 13,038 14,695
Total current assets 307,288 271,824
Property and equipment, net 39,142 29,876
Goodwill 1,307 1,307
Deferred tax assets, net 62,364 62,725
Other non-current assets 22,714 24,077
Total assets $ 432,815 $ 389,809
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable $ 12,542 $ 7,024
Accrued and other liabilities 32,696 21,388
Deferred revenue, current 78,335 82,657
Total current liabilities 123,573 111,069
Deferred revenue, non-current 69,924 58,677
Other non-current liabilities 7,489 12,187
Total liabilities 200,986 181,933
Stockholders' equity:
Common stock, $0.00001 par value: 500,000 shares authorized; 90,520 and 89,003 shares issued and 73,693 and 74,359 shares outstanding, respectively 1 1
Treasury stock, at cost: 16,827 and 14,644 shares, respectively (180,992) (150,909)
Additional paid-in-capital 508,387 486,958
Dividends paid (55,417) (37,619)
Accumulated other comprehensive income (loss) 194 (71)
Accumulated deficit (40,344) (90,484)
Total stockholders' equity 231,829 207,876
Total liabilities and stockholders' equity $ 432,815 $ 389,809

A10 NETWORKS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited, in thousands, on a GAAP Basis)

Years Ended December 31,
2024 2023
Cash flows from operating activities:
Net income $ 50,140 $ 39,970
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization 11,293 9,346
Stock-based compensation 17,048 14,081
Provision for (recovery from) doubtful accounts and sales returns 59 (699)
Other non-cash items (424) 117
Changes in operating assets and liabilities:
Accounts receivable (2,555) (679)
Inventory (760) (6,302)
Prepaid expenses and other assets (67) (1,862)
Accounts payable 2,224 (2,999)
Accrued and other liabilities 6,609 (20,801)
Deferred revenue 6,925 14,342
Net cash provided by operating activities 90,492 44,514
Cash flows from investing activities:
Proceeds from sales of marketable securities 25,531 45,420
Proceeds from maturities of marketable securities 81,146 64,504
Purchases of marketable securities (142,759) (85,420)
Capital expenditures (12,268) (10,896)
Net cash provided by (used in) investing activities (48,350) 13,608
Cash flows from financing activities:
Proceeds from issuance of common stock under employee equity incentive plans 3,624 4,943
Repurchases of common stock (30,084) (15,975)
Payments for dividends (17,797) (17,817)
Net cash used in financing activities (44,257) (28,849)
Net increase (decrease) in cash and cash equivalents (2,115) 29,273
Cash and cash equivalents—beginning of period 97,244 67,971
Cash and cash equivalents—end of period $ 95,129 $ 97,244
Non-cash investing and financing activities:
Transfers between inventory and property and equipment $ 2,277 $ 2,473
Capital expenditures included in accounts payable $ 3,294 $ 3,298

A10 NETWORKS, INC.

RECONCILIATION OF GAAP GROSS PROFIT TO NON-GAAP GROSS PROFIT

(unaudited, in thousands, except percentages)

Three Months Ended December 31, Years Ended December 31,
2024 2023 2024 2023
GAAP gross profit $ 59,306 $ 57,143 $ 210,277 $ 203,738
GAAP gross margin 79.9% 81.1% 80.4% 80.9%
Non-GAAP adjustments:
Stock-based compensation and related payroll tax 523 441 2,091 1,814
Workforce reduction expense 20 20 42
Cyber incident remediation expense 3
Non-GAAP gross profit $ 59,849 $ 57,584 $ 212,388 $ 205,597
Non-GAAP gross margin 80.7% 81.8% 81.2% 81.7%

A10 NETWORKS, INC.

RECONCILIATION OF GAAP TOTAL OPERATING EXPENSES

TO NON-GAAP TOTAL OPERATING EXPENSES

(unaudited, in thousands)

Three Months Ended December 31, Years Ended December 31,
2024 2023 2024 2023
GAAP total operating expenses $ 40,910 $ 39,137 $ 166,309 $ 165,090
Non-GAAP adjustments:
Stock-based compensation and related payroll tax (4,288) (2,481) (15,534) (12,860)
Impairment expense (2,975)
Tax planning expense (500) (500) (500)
Workforce reduction expense (1,055) (1,055) (4,256)
Cyber incident remediation expense (729)
One-time legal expense (71)
Non-GAAP total operating expenses $ 35,567 $ 36,156 $ 149,149 $ 143,770

A10 NETWORKS, INC.

RECONCILIATION OF GAAP INCOME FROM OPERATIONS

TO NON-GAAP OPERATING INCOME

(unaudited, in thousands, except percentages)

Three Months Ended December 31, Years Ended December 31,
2024 2023 2024 2023
GAAP income from operations $ 18,396 $ 18,006 $ 43,968 $ 38,648
GAAP operating margin 24.8% 25.6% 16.8% 15.4%
Non-GAAP adjustments:
Stock-based compensation and related payroll tax 4,811 2,922 17,625 14,674
Impairment expense 2,975
Tax planning expense 500 500 500
Workforce reduction expense 1,075 1,075 4,298
Cyber incident remediation expense 732
One-time legal expense 71
Non-GAAP operating income $ 24,282 $ 21,428 $ 63,239 $ 61,827
Non-GAAP operating margin 32.7% 30.4% 24.2% 24.6%

A10 NETWORKS, INC.

RECONCILIATION OF GAAP NET INCOME TO

EBITDA AND ADJUSTED EBITDA (NON-GAAP)

(unaudited, in thousands)

Three Months Ended December 31, Years Ended December 31,
2024 2023 2024 2023
GAAP net income $ 18,301 $ 17,917 $ 50,140 $ 39,970
GAAP net income margin 24.7% 25.4% 19.2% 15.9%
Exclude: Interest and other income, net (3,111) (1,093) (14,131) (5,147)
Exclude: Depreciation and amortization 3,045 2,501 11,293 9,346
Exclude: Provision for income taxes 3,206 1,182 7,959 3,825
EBITDA 21,441 20,507 55,261 47,994
Exclude: Stock-based compensation and related payroll tax 4,811 2,922 17,625 14,674
Exclude: Impairment expense 2,975
Exclude: Tax planning expense 500 500 500
Exclude: Workforce reduction expense 1,075 1,075 4,298
Exclude: Cyber incident remediation expense 732
Exclude: One-time legal expense 71
Adjusted EBITDA $ 27,327 $ 23,929 $ 74,532 $ 71,173
Adjusted EBITDA margin 36.8% 34.0% 28.5% 28.3%

atenq42024earningscallsl

Q4 2024 Financial Results & Commentary February 4, 2025


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) tax planning expense, (iv) workforce reduction expense, (v) cyber incident remediation 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) tax planning expense, (iv) workforce reduction expense, (v) cyber incident remediation 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) tax planning expense, (iv) workforce reduction expense, (v) cyber incident remediation 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, net, (ii) depreciation and amortization expense, (iii) provision for income taxes, (iv) stock-based compensation and related payroll tax, (v) impairment expense, (vi) tax planning expense, (vii) workforce reduction expense, (viii) cyber incident remediation 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 ▪ Q4 2024 Overview ▪ Full-Year 2024 Overview ▪ Q4 Financial Performance ▪ Enhanced R&D Processes


Q4’24: Improving Market Conditions Revenue Overview • Q4 Revenue increased 5.4% year-over-year • Full-Year 2024 Revenue increased 4.0% • On a full-year basis, Enterprise revenue increased 6.1% YOY and Service Provider revenue increased 2.5% YOY Consistent Profitability • Non-GAAP gross margins of 80.7% in Q4'24 • GAAP EPS of $0.24, unchanged from Q4’23 • Non-GAAP EPS of $0.31 compared to $0.25 in Q4’23 Key Takeaways • Broad-based revenue growth (both verticals and regions) • Profitability in line with expectations • Continued recovery in the North American Service Provider segment • Solid growth in Enterprise segment • Accelerating investment in Security and AI solutions bolstered by enhanced R&D structure See Appendix for reconciliation to most comparable GAAP financial measures.


Quarterly Revenue & Adjusted EBITDA Adjusted EBITDA is a Non-GAAP Financial Measure. See Appendix for reconciliation to most comparable GAAP financial measures. $70.4 $60.7 $60.1 $66.7 $74.2 Q4'23 Q1'24 Q2'24 Q3'24 Q4'24 Revenue, $ Millions $23.9 $13.9 $15.5 $17.8 $27.3 Q4'23 Q1'24 Q2'24 Q3'24 Q4'24 Adjusted EBITDA, $ Millions $70.4 $74.2 Q4'23 Q4'24 Revenue, $ Millions $23.9 $27.3 Q4'23 Q4'24 Adjusted EBITDA, $ Millions


Full-Year Revenue & Adjusted EBITDA Adjusted EBITDA is a Non-GAAP Financial Measure. See Appendix for reconciliation to most comparable GAAP financial measures. $250.0 $280.3 $251.7 $261.7 2021 2022 2023 2024 Revenue, $ Millions $62.3 $75.1 $71.2 $74.5 2021 2022 2023 2024 Adjusted EBITDA, $ Millions


Revenue by Customer Vertical $146.8 $150.4 2023 2024 FY Service Provider Revenue, $ Millions$29.0 $29.3 $23.0 $26.7 $30.0 $31.5 $28.7 $41.1 $37.7 $33.4 $36.7 $42.7 Q3'23 Q4'23 Q1'24 Q2'24 Q3'24 Q4'24 Revenue, $ Millions Service Provider Enterprise $104.9 $111.3 2023 2024 FY Enterprise Revenue, $ Millions


Quarterly Revenue by Geography 57% 45% 51% 51% 56% 26% 41% 32% 35% 27% 16% 14% 17% 14% 17% Q4'23 Q1'24 Q2'24 Q3'24 Q4'24 $ Millions Americas APJ EMEA 56%27% 17% Q4’24 $74.2 million


A10 Platform A10 Control: Analytics, Insights and Automation A10 Infrastructure A10 Defend Long term Management Layer that support third party solutions A Unified software platform to deliver best in class technical performance Provide a common way to manage multiple categories including third party products Hybrid Infrastructure and AI buildout What We Do 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 Q4’24 FY 2024 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 $74.2 $261.7 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% 80.7% 81.2% 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% 32.7% 24.2% 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 $27.3 $74.5 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 $0.31 $0.86 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 $195.6 $195.6


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. Year Ended Year Ended Q1'23 Q2'23 Q3'23 Q4'23 Dec 31 2023 Q1'24 Q2'24 Q3'24 Q4'24 Dec 31 2024 Revenue $ 57.7 $ 65.8 $ 57.8 $ 70.4 $ 251.7 $ 60.7 $ 60.1 $ 66.7 $ 74.2 $ 261.7 Gross Margin % - Non-GAAP 83.1% 80.2% 81.8% 81.8% 81.7% 81.9% 80.9% 81.3% 80.6% 81.2% Income from operations % - Non-GAAP 23.1% 23.1% 20.6% 30.4% 24.6% 18.5% 21.1% 22.6% 32.7% 24.2% Adjusted EBITDA - Non-GAAP $ 15.5 $ 17.4 $ 14.4 $ 23.9 $ 71.2 $ 13.9 $ 15.5 $ 17.8 $ 27.3 $ 74.5 EPS $ - Non-GAAP $ 0.13 $ 0.19 $ 0.16 $ 0.25 $ 0.73 $ 0.17 $ 0.18 $ 0.21 $ 0.31 $ 0.86 Ending Cash & Marketable Securities $ 144.5 $ 153.9 $ 169.0 $ 159.3 $ 159.3 $ 182.1 $ 177.1 $ 182.1 $ 195.6 $ 195.6


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 Year Ended $ Millions Q1'23 Q2'23 Q3'23 Q4'23 Dec 31 2023 Q1'24 Q2'24 Q3'24 Q4'24 Dec 31 2024 Income from operations $ - GAAP 6.2$ 12.3$ 2.2$ 18.0$ 38.6$ 7.2$ 7.9$ 10.4$ 18.4$ 44.0$ Stock-based compensation 4.0 3.5 4.3 2.9 14.7 4.0 4.3 4.5 4.8 17.6 Tax planning expense - - - 0.5 0.5 - 0.4 0.1 - 0.5 Capitalized project impairment - - 3.0 - 3.0 - - - - - One-time legal expense - - - - - - 0.1 - - 0.1 Workforce reduction severance 1.9 - 2.4 - 4.3 - - - 1.1 1.1 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$ 24.3$ 63.2$ % of Revenue Income from operations % - GAAP 10.7 % 18.6 % 3.8 % 25.6 % 15.4 % 11.9 % 13.2 % 15.7 % 24.8 % 16.8 % Stock-based compensation 6.9 % 5.4 % 7.5 % 4.1 % 5.8 % 6.6 % 7.2 % 6.8 % 6.5 % 6.7 % Tax planning expense —% —% —% 0.7 % 0.2 % —% 0.7 % 0.1 % —% 0.2 % Capitalized project impairment —% —% 5.1 % —% 1.2 % —% —% —% —% —% One-time legal expense —% —% —% —% —% —% 0.1 % —% —% 0.0 % Workforce reduction severance 3.2 % —% 4.2 % —% 1.7 % —% —% —% 1.4 % 0.4 % 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 % 32.7 % 24.2 % 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. Year Ended $ Millions Q1'23 Q2'23 Q3'23 Q4'23 Dec 31 2023 Q1'24 Q2'24 Q3'24 Q4'24 Dec 31 2024 GAAP net income 4.0$ 11.6$ 6.5$ 17.9$ 40.0$ 9.7$ 9.5$ 12.6$ 18.3$ 50.1$ Exclude: Interest income and other (income) expense, net 1.2 (2.5) (2.8) (1.1) (5.1) (4.0) (3.1) (3.9) (3.1) (14.1) Exclude: Depreciation & amortization expense 2.1 2.2 2.5 2.5 9.3 2.7 2.8 2.7 3.0 11.3 Exclude: Provision (benefit) for income taxes 1.0 3.2 (1.5) 1.2 3.8 1.5 1.5 1.8 3.2 8.0 EBITDA 8.3 14.5 4.7 20.5 48.0 9.9 10.7 13.2 21.4 55.3 Exclude: Stock-based compensation 4.0 3.5 4.3 2.9 14.7 4.0 4.3 4.5 4.8 17.6 Exclude: Tax planning expense - - - 0.5 0.5 - 0.4 0.1 - 0.5 Exclude: Capitalized project impairment - - 3.0 - 3.0 - - - - - Exclude: One-time legal expense - - - - - - 0.1 - - 0.1 Exclude: Workforce reduction severance 1.9 - 2.4 - 4.3 - - - 1.1 1.1 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$ 27.3$ 74.5$ Year Ended