# EDGAR Filing Document

**Accession Number:** 0001580808
**File Stem:** 0001580808-23-000027
**Filing Date:** 2023-2
**Character Count:** 60982
**Document Hash:** 0f466d5c74659710447c0ae3f4c693a3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001580808-23-000027.hdr.sgml**: 20230207

**ACCESSION NUMBER**: 0001580808-23-000027

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 31

**CONFORMED PERIOD OF REPORT**: 20230207

**ITEM INFORMATION**: Results of Operations and Financial Condition

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Other Events

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20230207

**DATE AS OF CHANGE**: 20230207

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** A10 Networks, Inc.
- **CENTRAL INDEX KEY:** 0001580808
- **STANDARD INDUSTRIAL CLASSIFICATION:** COMPUTER COMMUNICATIONS EQUIPMENT [3576]
- **IRS NUMBER:** 201446869
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36343
- **FILM NUMBER:** 23595160

**BUSINESS ADDRESS:**
- **STREET 1:** 2300 ORCHARD PKWY
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95131
- **BUSINESS PHONE:** (408) 325-8668

**MAIL ADDRESS:**
- **STREET 1:** 2300 ORCHARD PKWY
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95131

?xml version="1.0" ? aten-20230207

**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)

____________________________________________________________________________

![aten-20230207_g1.jpg](aten-20230207_g1.jpg)

**A10 NETWORKS, INC.**

(Exact name of the registrant as specified in its charter)

____________________________________________________________________________

---

| | | |
|:---|:---|:---|
| **<u>Delaware</u>** | **<u>001-36343</u>** | **<u>20-1446869</u>** |
| (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** |

---

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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&nbsp;&nbsp;&nbsp;&nbsp;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&nbsp;&nbsp;&nbsp;&nbsp;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&nbsp;&nbsp;&nbsp;&nbsp;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&nbsp;&nbsp;&nbsp;&nbsp;Financial Statements and Exhibits**

(d) Exhibits

---

| | |
|:---|:---|
| **<u>Exhibit</u>** | **<u>Description</u>** |
| 99.1 | <u>[Press release dated](q4ex-9912072023earningsrel.htm)[February 7](q4ex-9912072023earningsrel.htm)[, 202](q4ex-9912072023earningsrel.htm)[3](q4ex-9912072023earningsrel.htm)[.](q4ex-9912072023earningsrel.htm)</u> |
| 99.2 | <u>[Slides of A10 Network, Inc. dated](atenq42022earningscallsl.htm)[February](atenq42022earningscallsl.htm)[7](atenq42022earningscallsl.htm)[, 202](atenq42022earningscallsl.htm)[3](atenq42022earningscallsl.htm)[, regarding financial results of the](atenq42022earningscallsl.htm)[fourth](atenq42022earningscallsl.htm)[quarter ended](atenq42022earningscallsl.htm)[Dec](atenq42022earningscallsl.htm)[ember 3](atenq42022earningscallsl.htm)[1](atenq42022earningscallsl.htm)[, 2022.](atenq42022earningscallsl.htm)</u> |

---

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**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)* |

---

## Exhibit 99.1

**EXHIBIT 99.1**

![a10logo.jpg](a10logo.jpg)

**A10 Networks Reports Record Revenue, Full-Year Revenue of $280.3 Million,** 

**Fourth Quarter Revenue of $77.6 Million**

*12% Full-Year Revenue Growth Drives Record Profitability*

SAN JOSE, Calif., February 7, 2023 -- A10 Networks (NYSE: ATEN), a leading provider of cybersecurity and infrastructure solutions, today announced financial results for its fourth quarter and full-year period ended December 31, 2022.

**<u>Fourth Quarter 2022 Financial Summary</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Record revenue of $77.6 million, up 9.9% year-over-year.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Revenue growth was broad-based, with increases in North America and APAC, as well as Japan on a constant currency basis.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• GAAP gross margin of 79.7%; non-GAAP gross margin of 80.3% as a result of better product mix and continued successful navigation of short-term input cost pressures.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• GAAP net income of $18.0 million, or $0.24 per diluted share, compared with GAAP net income of $10.7 million, or $0.13 per diluted share in the fourth quarter of 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Non-GAAP net income of $18.4 million, or $0.24 per diluted share (non-GAAP EPS), compared with non-GAAP net income of $16.4 million, or $0.20 per diluted share in the fourth quarter of 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Adjusted EBITDA of $22.3 million, representing 28.7% of revenue, in line with stated business model goals, and representing more Adjusted EBITDA than A10 generated in all of 2018 and 2019 combined.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• The Board of Directors approved a quarterly cash dividend of $0.06 per share, payable on March 1, 2023 to stockholders of record at the close of business on February 17, 2023.

**<u>Full-Year 2022 Financial Summary</u>**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Record revenue of $280.3 million, up 12.1% year-over-year.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Revenue growth was broad-based, with increases in all major geographies and customer verticals on a constant currency basis.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• GAAP gross margin of 79.7%; non-GAAP gross margin of 80.3%.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• GAAP net income of $46.9 million, or $0.60 per diluted share, compared with GAAP net income (inclusive of a non-recurring $65.4 million income tax benefit related to sustained profitability) of $94.9 million, or $1.19 per diluted share in 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Non-GAAP net income of $57.7 million, or $0.74 per diluted share, compared with non-GAAP net income of $50.1 million, or $0.63 per diluted share in 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Q3 and Q4 2022 GAAP EPS of $0.16 and $0.24 per diluted share, respectively, compared to Q3 and Q4 2021 GAAP EPS of $0.94 and $0.13 per diluted share, respectively. Full-year 2022 GAAP EPS was $0.60 vs. $1.19 last year.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• With Q3 and Q4 2022 non-GAAP EPS of $0.20 and $0.24 per diluted share, respectively, and Q3 and Q4 2021 non-GAAP EPS of $0.17 and $0.20 per diluted share, respectively, A10's profit accelerated in the second-half of 2022 compared to the second-half of 2021. Full-year 2022 non-GAAP EPS was $0.74 vs. $0.63 last year.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Adjusted EBITDA of $75.1 million, representing 26.8% of revenue, in line with stated goals for profitability.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Full-year cash flow from operations increased 31.9% to $66.1 million, compared to $50.1 million in 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• A10 returned more than $95 million to shareholders during 2022, repurchasing approximately 6.1 million shares at an average price of $13.01 per share for a total of $79.3 million and issuing $15.9 million in cash dividends.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **($ in millions, except per-share)** | **2019** | **2020** | **2021** | **2022** | **2022 vs. 2021** |
| Revenue | $212.6 | $225.5 | $250.0 | $280.3 | +12.1% |
| Adjusted EBITDA % | 5.5% | 20.2% | 25.0% | 26.8% | +182 bps |
| GAAP EPS | ($0.23) | $0.22 | $1.19 | $0.60 | (49.1%) |
| Non-GAAP EPS | $0.03 | $0.44 | $0.63 | $0.74 | +18.6% |

---

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

"Strong demand for our proprietary security-led solutions drove record revenues for the quarter and the full-year, with continued broad-based growth across both enterprises and service providers and in each key geographic region, on a constant-currency basis," said Dhrupad Trivedi, President and Chief Executive Officer of A10 Networks. "Increasingly, A10 is positioned as a diversified, differentiated security solutions provider, structured to mitigate fluctuations from any single customer or region. While

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we are not immune from recessionary impacts, our industry leadership makes our offerings a priority over discretionary investments. We remain well-positioned for continued success with both enterprise and service provider customers."

"In 2022 we successfully navigated supply chain constraints, maintained robust gross margins and effectively managed our operating expenses, which drove profitability and free cash flow," added Trivedi. "With revenue growth that outpaced operating expenses, we were able to grow our bottom line faster than our top line. For the year, we delivered record non-GAAP operating income and EBITDA margins, enabling us to repurchase more than $79.3 million of our stock and return further capital to shareholders through meaningful cash dividends. Simultaneously, we continued to strategically invest in technology, augmenting our already durable differentiators and making our business increasingly resilient. We remain committed to delivering revenue growth that outpaces our peer set, navigating recessionary headwinds better than our peers and delivering solid bottom-line growth, with expected double-digit growth in 2023 full-year non-GAAP EPS. We continue to carry no debt and hold $151.0 million of cash and cash equivalents."

**<u>Conference Call</u>**

Management will host a call at 1:30 p.m. Pacific time (4:30 p.m. Eastern time) today, February 7, 2023, to discuss these results. Interested parties may access the conference call by dialing (844) 200-6205 (toll-free) or (929) 526-1599 and referencing access code: 125471.

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 897429.

**<u>Forward-Looking Statements</u>**

This press release contains "forward-looking statements," including statements regarding our anticipated future financial results, quarterly dividend payments, drivers of growth, strategy, demand, supply chain challenges, positioning, growth and Adjusted EBITDA and non-GAAP EPS expectations. 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 the impact of the COVID-19 pandemic on our business and the business of our customers; 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 March 8, 2022. 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.

**<u>Non-GAAP Financial Measures</u>**

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-

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GAAP operating expenses, and Adjusted EBITDA. 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 of investment, (iii) amortization expense related to acquisition, (iv) global distribution center transition expense, (v) litigation and investigation expense (recovery, (vi) non-recurring facilities expense, (vii) restructuring expense and related taxes, (viii) tax benefit of amended returns and (ix) release of deferred tax asset valuation allowance. 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 tax effected non-GAAP net income as non-GAAP net income adjusted for the income tax effect of excluding the non-GAAP items (i) to (ix) listed above. We define non-GAAP gross profit as our GAAP gross profit excluding (i) stock-based compensation and related payroll tax, and (ii) global distribution center transition expense. We define non-GAAP gross margin as our non-GAAP gross profit divided by our GAAP revenue. We define non-GAAP operating income as our GAAP income from operations excluding (i) stock-based compensation and related payroll tax, (ii) amortization expense related to acquisition and (iii) global distribution center transition expense. We define non-GAAP operating margin as our non-GAAP operating income 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) amortization expense related to acquisition and (iii) global distribution center transition expense. 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 (benefit from) income taxes, (iv) stock-based compensation and related payroll tax, (v) litigation and investigation expense (recovery), (vi) non-recurring facilities expense, (vi) impairment of investment, (vii) global distribution center transition expense and (ix) restructuring expense.

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

**<u>About A10 Networks</u>**

A10 Networks (NYSE: ATEN) provides secure application services and solutions for on-premises, multi-cloud and edge-cloud environments at hyperscale. Our mission is to enable service providers and enterprises to deliver business-critical applications that are secure, available and efficient for multi-cloud transformation and 5G readiness. We deliver better business outcomes that support investment protection, new business models and help future-proof infrastructures, empowering our customers to provide the most secure and available digital experience. Founded in 2004, A10 Networks is based in San Jose, Calif. and serves customers globally. For more information, visit https://www.a10networks.com/ and follow us @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.

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**A10 NETWORKS, INC.**

**CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS**

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

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| | | | | |
|:---|:---|:---|:---|:---|
| | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** | **2022** | **2021** |
| Revenue: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Products | $49577 | $43680 | $173201 | $148398 |
| &nbsp;&nbsp;&nbsp;&nbsp;Services | 28057 | 26991 | 107137 | 101644 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total revenue | 77634 | 70671 | 280338 | 250042 |
| Cost of revenue: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Products | 11793 | 9460 | 40135 | 32620 |
| &nbsp;&nbsp;&nbsp;&nbsp;Services | 3950 | 4722 | 16697 | 20885 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total cost of revenue | 15743 | 14182 | 56832 | 53505 |
| Gross profit | 61891 | 56489 | 223506 | 196537 |
| Operating expenses: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Sales and marketing | 22351 | 25456 | 88511 | 85651 |
| &nbsp;&nbsp;&nbsp;&nbsp;Research and development | 16916 | 13027 | 58398 | 54077 |
| &nbsp;&nbsp;&nbsp;&nbsp;General and administrative | 6358 | 6161 | 23518 | 23421 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total operating expenses | 45625 | 44644 | 170427 | 163149 |
| Income from operations | 16266 | 11845 | 53079 | 33388 |
| Non-operating income (expense): |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest income | 568 | 103 | 1304 | 409 |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest and other income (expense), net | (464) | (356) | (1667) | (2155) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total non-operating income (expense), net | 104 | (253) | (363) | (1746) |
| Income before income taxes | 16370 | 11592 | 52716 | 31642 |
| Provision for (benefit from) income taxes | (1660) | 864 | 5808 | (63245) |
| Net income | $18030 | $10728 | $46908 | $94887 |
| Net income per share: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | $0.25 | $0.14 | $0.62 | $1.23 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | $0.24 | $0.13 | $0.60 | $1.19 |
| Weighted-average shares used in computing net income per share: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | 73560 | 77548 | 75528 | 77046 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | 75392 | 80316 | 77751 | 80037 |

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**A10 NETWORKS, INC.**

**RECONCILIATION OF GAAP NET INCOME TO NON-GAAP NET INCOME**

**(unaudited, in thousands, except per share amounts)**

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| | | | | |
|:---|:---|:---|:---|:---|
| | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022**  | **2021**  | **2022**  | **2021**  |
| GAAP net income | 18030 | 10728 | 46908 | 94887 |
| Non-GAAP items: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stock-based compensation and related payroll tax | 3546 | 3598 | 13969 | 15031 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Impairment of investment | 1000 |  | 1000 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Amortization expense related to acquisition |  |  |  | 505 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Global distribution center transition expense |  | 2117 |  | 5063 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tax benefit from amended returns | (4176) |  | (4176) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Release of deferred tax asset valuation allowance |  |  |  | (65417) |
| &nbsp;&nbsp;Total non-GAAP items | 370 | 5715 | 10793 | (44818) |
| Non-GAAP net income <sup>(1)</sup> | $18400 | $16443 | $57701 | $50069 |
| GAAP net income per share: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | 0.25 | 0.14 | 0.62 | 1.23 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | 0.24 | 0.13 | 0.60 | 1.19 |
| Non-GAAP items: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stock-based compensation and related payroll tax | 0.05 | 0.04 | 0.18 | 0.19 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Impairment of investment | 0.01 |  | 0.01 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Amortization expense related to acquisition |  |  |  | 0.01 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Global distribution center transition expense |  | 0.03 |  | 0.06 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tax benefit from amended returns | (0.06) |  | (0.05) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Release of deferred tax asset valuation allowance |  |  |  | (0.82) |
| &nbsp;&nbsp;Total non-GAAP items |  | 0.07 | 0.14 | (0.56) |
| Non-GAAP net income per share: <sup>(1)</sup> |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | 0.25 | 0.21 | 0.76 | 0.65 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | 0.24 | 0.20 | 0.74 | 0.63 |
| Weighted average shares used in computing net income per share: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | 73560 | 77548 | 75528 | 77046 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | 75392 | 80316 | 77751 | 80037 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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 all companies may not 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)**

---

| | | |
|:---|:---|:---|
| | **December 31,<br>2022** | **December 31,<br>2021** |
| **ASSETS** | **ASSETS** | **ASSETS** |
| Current assets: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents | $67971 | $78925 |
| &nbsp;&nbsp;&nbsp;&nbsp;Marketable securities | 83018 | 106117 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable, net of allowances of $32 and $543, respectively | 72928 | 61795 |
| &nbsp;&nbsp;&nbsp;&nbsp;Inventory | 19693 | 22462 |
| &nbsp;&nbsp;&nbsp;&nbsp;Prepaid expenses and other current assets | 13381 | 14720 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current assets | 256991 | 284019 |
| Property and equipment, net | 19743 | 10692 |
| Goodwill | 1307 | 1307 |
| Deferred tax assets, net | 63183 | 65773 |
| Other non-current assets | 27881 | 31294 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total assets | $369105 | $393085 |
| **LIABILITIES AND STOCKHOLDERS' EQUITY** | **LIABILITIES AND STOCKHOLDERS' EQUITY** | **LIABILITIES AND STOCKHOLDERS' EQUITY** |
| Current liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts payable | $6725 | $6852 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accrued and other liabilities | 37183 | 36101 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred revenue, current | 74340 | 73132 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current liabilities | 118248 | 116085 |
| Deferred revenue, non-current | 52652 | 48499 |
| Other non-current liabilities | 17193 | 19613 |
| Total liabilities | 188093 | 184197 |
| Stockholders' equity: | Stockholders' equity: | Stockholders' equity: |
| &nbsp;&nbsp;&nbsp;&nbsp;Common stock, $0.00001 par value: 500,000 shares authorized; 87,123 and 84,717 shares issued and 73,738 and 77,423 shares outstanding, respectively | 1 | 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;Treasury stock, at cost: 13,384 and 7,294 shares, respectively | (134934) | (55677) |
| &nbsp;&nbsp;&nbsp;&nbsp;Additional paid-in-capital | 466927 | 446035 |
| &nbsp;&nbsp;&nbsp;&nbsp;Dividends paid | (19802) | (3880) |
| &nbsp;&nbsp;&nbsp;&nbsp;Accumulated other comprehensive loss | (726) | (229) |
| &nbsp;&nbsp;&nbsp;&nbsp;Accumulated deficit | (130454) | (177362) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total stockholders' equity | 181012 | 208888 |
| Total liabilities and stockholders' equity | $369105 | $393085 |

---

------

**A10 NETWORKS, INC.**

**CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS**

**(unaudited, in thousands, on a GAAP Basis)**

---

| | | |
|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2021** |
| Cash flows from operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net income | $46908 | $94887 |
| &nbsp;&nbsp;&nbsp;&nbsp;Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization | 7381 | 8907 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stock-based compensation | 13331 | 14422 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Provision for doubtful accounts and sales returns | 166 | (616) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Release of deferred tax asset valuation allowance and other adjustments |  | (64186) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other non-cash items | 591 | 1688 |
| &nbsp;&nbsp;&nbsp;&nbsp;Changes in operating assets and liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable | (10065) | (10399) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventory | 2035 | (1826) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prepaid expenses and other assets | 1627 | (2134) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable | 103 | 1995 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued and other liabilities | (1338) | (5573) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred revenue | 5361 | 12932 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by operating activities | 66100 | 50097 |
| Cash flows from investing activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from sales of marketable securities | 6252 | 6865 |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from maturities of marketable securities | 71045 | 88790 |
| &nbsp;&nbsp;&nbsp;&nbsp;Purchases of marketable securities | (55411) | (128554) |
| &nbsp;&nbsp;&nbsp;&nbsp;Purchases of property and equipment | (10799) | (5171) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by (used in) investing activities | 11087 | (38070) |
| Cash flows from financing activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from issuance of common stock under employee equity incentive plans | 7038 | 5764 |
| &nbsp;&nbsp;&nbsp;&nbsp;Repurchases of common stock | (79257) | (18267) |
| &nbsp;&nbsp;&nbsp;&nbsp;Payments for dividends | (15922) | (3880) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash used in financing activities | (88141) | (16383) |
| Net decrease in cash and cash equivalents | (10954) | (4356) |
| Cash and cash equivalents—beginning of period | 78925 | 83281 |
| Cash and cash equivalents—end of period | $67971 | $78925 |
| **Non-cash investing and financing activities:** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Transfers between inventory and property and equipment | $733 | $94 |
| &nbsp;&nbsp;&nbsp;&nbsp;Purchases of property and equipment included in accounts payable | $230 | $6 |

---

------

**A10 NETWORKS, INC.**

**RECONCILIATION OF GAAP GROSS PROFIT TO NON-GAAP GROSS PROFIT**

**(unaudited, in thousands, except percentages)**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2022** | **2021** | **2021** | **2022** | **2022** | **2021** | **2021** |
| GAAP gross profit | $61891 | 61891 | $56489 | 56489 | $223506 | 223506 | $196537 | 196537 |
| GAAP gross margin |  | 79.7% |  | 79.9% |  | 79.7% |  | 78.6% |
| Non-GAAP adjustments: |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Stock-based compensation and related payroll tax |  | 414 |  | 398 |  | 1662 |  | 1733 |
| &nbsp;&nbsp;&nbsp;&nbsp;Global distribution center transition expense |  |  |  | 117 |  |  |  | 655 |
| Non-GAAP gross profit | $62305 | 62305 | $57004 | 57004 | $225168 | 225168 | $198925 | 198925 |
| Non-GAAP gross margin |  | 80.3% |  | 80.7% |  | 80.3% |  | 79.6% |

---

**A10 NETWORKS, INC.**

**RECONCILIATION OF GAAP TOTAL OPERATING EXPENSES**

**TO NON-GAAP TOTAL OPERATING EXPENSES**

**(unaudited, in thousands)**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2022** | **2021** | **2021** | **2022** | **2022** | **2021** | **2021** |
| GAAP total operating expenses | $45625 | 45625 | $44644 | 44644 | $170427 | 170427 | $163149 | 163149 |
| Non-GAAP adjustments: |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Stock-based compensation and related payroll tax |  | (3132) |  | (3200) |  | (12307) |  | (13298) |
| &nbsp;&nbsp;&nbsp;&nbsp;Amortization expense related to acquisition |  |  |  |  |  |  |  | (505) |
| &nbsp;&nbsp;&nbsp;&nbsp;Global distribution center transition expense |  |  |  | (2000) |  |  |  | (4408) |
| Non-GAAP total operating expenses | $42493 | 42493 | $39444 | 39444 | $158120 | 158120 | $144938 | 144938 |

---

------

**A10 NETWORKS, INC.**

**RECONCILIATION OF GAAP INCOME FROM OPERATIONS**

**TO NON-GAAP OPERATING INCOME**

**(unaudited, in thousands, except percentages)**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2022** | **2021** | **2021** | **2022** | **2022** | **2021** | **2021** |
| GAAP income from operations | $16266 | 16266 | $11845 | 11845 | $53079 | 53079 | $33388 | 33388 |
| GAAP operating margin |  | 21.0% |  | 16.8% |  | 18.9% |  | 13.4% |
| Non-GAAP adjustments: |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Stock-based compensation and related payroll tax |  | 3546 |  | 3598 |  | 13969 |  | 15031 |
| &nbsp;&nbsp;&nbsp;&nbsp;Amortization expense related to acquisition |  |  |  |  |  |  |  | 505 |
| &nbsp;&nbsp;&nbsp;&nbsp;Global distribution center transition expense |  |  |  | 2117 |  |  |  | 5063 |
| Non-GAAP operating income | $19812 | 19812 | $17560 | 17560 | $67048 | 67048 | $53987 | 53987 |
| Non-GAAP operating margin |  | 25.5% |  | 24.8% |  | 23.9% |  | 21.6% |

---

**A10 NETWORKS, INC.**

**RECONCILIATION OF GAAP NET INCOME**

**TO EBITDA AND ADJUSTED EBITDA (NON-GAAP)**

**(unaudited, in thousands, except percentages)**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2022** | **2021** | **2021** | **2022** | **2022** | **2021** | **2021** |
| GAAP net income | $18030 | 18030 | $10728 | 10728 | $46908 | 46908 | $94887 | 94887 |
| GAAP net income margin |  | 23.2% |  | 15.2% |  | 16.7% |  | 37.9% |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Interest and other (income) expense, net |  | (104) |  | 253 |  | 363 |  | 1746 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Depreciation and amortization |  | 2473 |  | 1863 |  | 8012 |  | 8907 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Provision for (benefit from) income taxes |  | (1660) |  | 864 |  | 5808 |  | (63245) |
| EBITDA |  | 18739 |  | 13708 |  | 61091 |  | 42295 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Stock-based compensation and related payroll tax |  | 3546 |  | 3598 |  | 13969 |  | 15031 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Global distribution center transition expense |  |  |  | 2117 |  |  |  | 5063 |
| Adjusted EBITDA | $22285 | 22285 | $19423 | 19423 | $75060 | 75060 | $62389 | 62389 |
| Adjusted EBITDA margin |  | 28.7% |  | 27.5% |  | 26.8% |  | 25.0% |

---

------

**A10 NETWORKS, INC.**

**RECONCILIATION OF ADJUSTED EBITDA (NON-GAAP)**

**TO TAX EFFECTED NON-GAAP NET INCOME**

**(unaudited, in thousands)**

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Three Months Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2022** | **2022** | **2021** | **2021** | **2022** | **2022** | **2021** | **2021** |
| Adjusted EBITDA | $22285 | 22285 | $19423 | 19423 | $75060 | 75060 | $62389 | 62389 |
| &nbsp;&nbsp;Reconciling items: |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest and other income (expense), net | 104 | 104 | (253) | (253) | (363) | (363) | (1746) | (1746) |
| &nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization | (2473) | (2473) | (1863) | (1863) | (8012) | (8012) | (8907) | (8907) |
| &nbsp;&nbsp;&nbsp;&nbsp;Provision for (benefit from) income taxes <sup>(1)</sup> | (2516) | (2516) | (864) | (864) | (9984) | (9984) | (2172) | (2172) |
| &nbsp;&nbsp;&nbsp;&nbsp;Impairment of investment |  | 1000 |  |  |  | 1000 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Amortization expense related to acquisition |  |  |  |  |  |  |  | 505 |
| &nbsp;&nbsp;&nbsp;&nbsp;Income tax effect of non-GAAP items <sup>(2)</sup> |  | (889) |  | (1095) |  | (5487) |  | (5857) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | (4774) | (4774) | (4075) | (4075) | (22846) | (22846) | (18177) | (18177) |
| Tax effected non-GAAP net income | 17511 | 17511 | 15348 | 15348 | 52214 | 52214 | 44212 | 44212 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Income tax effect of non-GAAP items <sup>(2)</sup> | 889 | 889 | 1095 | 1095 | 5487 | 5487 | 5857 | 5857 |
| Non-GAAP net income | $18400 | 18400 | $16443 | 16443 | $57701 | 57701 | $50069 | 50069 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)In addition to provision for (benefit from) income taxes, includes tax benefit from amended returns of $4,176 thousand in the three months and year ended December 31, 2022 and release of deferred tax asset valuation allowance of $65,417 thousand in the year ended December 31, 2021.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)For the three months and year ended December 31, 2022 this represents the tax impact using estimated non-GAAP profit before tax rates of 4.8% and 9.5%, respectively. For the three months and year ended December 31, 2021 this represents the tax impact using estimated non-GAAP profit before tax rates of 6.7% and 11.7%, respectively.

------

**A10 NETWORKS, INC.**

**Q3 2022 AND Q3 2021 RECONCILIATION OF GAAP NET INCOME TO NON-GAAP NET INCOME**

**(unaudited, in thousands, except per share amounts)**

---

| | | |
|:---|:---|:---|
| | **Three Months Ended** | **Three Months Ended** |
| | **September 30, 2022** | **September 30, 2021** |
| GAAP net income | $12113 | $74886 |
| Non-GAAP items: |  |  |
| Stock-based compensation and related payroll tax | 3798 | 4201 |
| Global distribution center transition expense |  | (1) |
| Release of deferred tax asset valuation allowance |  | (65417) |
| Total non-GAAP items | 3798 | (61217) |
| Non-GAAP net income <sup>(1)</sup> | $15911 | $13669 |
| GAAP net income per share: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | $0.16 | $0.97 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | $0.16 | $0.94 |
| Non-GAAP items: |  |  |
| Stock-based compensation and related payroll tax | 0.04 | 0.05 |
| Global distribution center transition expense |  |  |
| Release of deferred tax asset valuation allowance |  | (0.82) |
| Total non-GAAP items | 0.04 | (0.77) |
| Non-GAAP net income per share: <sup>(1)</sup> |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | $0.21 | $0.18 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | $0.20 | $0.17 |
| Weighted average shares used in computing net income per share: |  |  |
| Basic | 75881 | 77149 |
| Diluted | 77679 | 79927 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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 all companies may not calculate adjusted net income and earnings per share in the same manner.

------

**A10 NETWORKS, INC.**

**2020 AND 2019 RECONCILIATION OF GAAP NET INCOME**

**TO EBITDA AND ADJUSTED EBITDA (NON-GAAP)**

**(unaudited, in thousands, except percentages)**

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2020** | **2020** | **2019** | **2019** |
| GAAP net income | $17816 | 17816 | $(17819) | (17819) |
| GAAP net income margin |  | 7.9% |  | (8.4)% |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Interest and other (income) expense, net |  | (1406) |  | (682) |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Depreciation and amortization |  | 11303 |  | 10028 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Provision for (benefit from) income taxes |  | 1323 |  | 1407 |
| EBITDA |  | 29036 |  | (7066) |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Stock-based compensation and related payroll tax |  | 12817 |  | 16790 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Litigation and investigation expense (recovery) |  | 30 |  | (1066) |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Non-recurring facilities expense |  | 795 |  | 425 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Global distribution center transition expense |  | 2884 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Exclude: Restructuring expense |  |  |  | 2530 |
| Adjusted EBITDA | $45562 | 45562 | $11613 | 11613 |
| Adjusted EBITDA margin |  | 20.2% |  | 5.5% |

---

------

**A10 NETWORKS, INC.**

**2020 AND 2019 RECONCILIATION OF GAAP NET INCOME TO NON-GAAP NET INCOME**

**(unaudited, in thousands, except per share amounts)**

---

| | | |
|:---|:---|:---|
| | **Year Ended December 31,** | **Year Ended December 31,** |
| | **2020** | **2019** |
| GAAP net income (loss) | $17816 | $(17819) |
| Non-GAAP items: |  |  |
| Stock-based compensation and related payroll tax | 12817 | 16790 |
| Amortization expense related to acquisition | 1011 | 1012 |
| Litigation and investigation expense (recovery) | 30 | (1066) |
| Non-recurring facilities expense | 795 | 425 |
| Global distribution center transition expense | 2884 |  |
| Restructuring expense and related taxes |  | 2676 |
| Total non-GAAP items | 17537 | 19837 |
| Non-GAAP net income <sup>(1)</sup> | $35353 | $2018 |
| GAAP net income (loss) per share: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | $0.23 | $(0.23) |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | $0.22 | $(0.23) |
| Non-GAAP items: |  |  |
| Stock-based compensation and related payroll tax | 0.16 | 0.22 |
| Amortization expense related to acquisition | 0.01 | 0.01 |
| Litigation and investigation expense (recovery) |  | (0.01) |
| Non-recurring facilities expense | 0.01 | 0.01 |
| Global distribution center transition expense | 0.04 |  |
| Restructuring expense and related taxes |  | 0.03 |
| Total non-GAAP items | 0.22 | 0.26 |
| Non-GAAP net income per share: <sup>(1)</sup> |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Basic | $0.45 | $0.03 |
| &nbsp;&nbsp;&nbsp;&nbsp;Diluted | $0.44 | $0.03 |
| Weighted average shares used in computing net income per share: |  |  |
| Basic | 77776 | 76080 |
| Diluted | 80019 | 78487 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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 all companies may not calculate adjusted net income and earnings per share in the same manner.

## Exhibit 99.2

![](atenq42022earningscallsl001.jpg)

Q4 2022 Financial Results & Commentary February 7, 2023

------

![](atenq42022earningscallsl002.jpg)

Cautionary Statements & Disclosures This presentation and the accompanying oral presentation contain "forward-looking" statements that are based on our management'sbeliefs and assumptions, including statements regarding our future financial performance, strategy, routes to market, technical differentiation, positioning, capital allocation strategy, expansion opportunities, growth, profitability, market growth, as well as market and technology trends. Forward-looking statements are subject to known and unknown risks, uncertainties, assumptions and other factors that could cause our actual results to differ materially from those anticipated or implied by our forward-looking statements. These factors include, but are not limited to, the impact of the COVID-19 pandemic on our business, on the business of our customers and suppliers, and on the global economy in general, a significant decline in global macroeconomic or political conditions, execution risks related to closing key deals and improving our execution, successfully executing our strategies, market adoption of our products, successfully anticipating market needs and opportunities, timely development of new products and features, achieving or maintaining profitability, loss or delay of expected purchases, our ability to maintain or improve our competitive position; competitive and execution risks related to cloud-based computing trends, attracting and retaining new end-customers, maintaining and enhancing our brand and reputation, changes demanded by our customers in the deployment and payment model for our products, growth in markets relating to network security, the success of any future acquisitions or investments, the success of our partnerships with technology providers, the ability of our sales team to execute well, our ability to shorten our close cycle, the ability of our channel partners to sell our products, variations in product mix or geographic locations of our sales, our presence in international markets, andother factors described in our quarterly reports on Form 10-Q, annual reports on Form 10-K and other filings made with the Securities and Exchange Commission, to which your attention is directed. The forward-looking statements included in this presentation are based on current expectations and beliefs as of February 7, 2023, only. We do not intend to update this information contained in the forward-looking statements, except as required by 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 (loss) excluding: (i) stock- based compensation and related payroll tax, (ii) amortization expense related to acquisition, (iii) global distribution center transition expense. We define non-GAAP net income per basic and diluted share as our non-GAAP net income (loss) 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, and (ii) global distribution center transition expense. We define non-GAAP gross margin as our non-GAAP gross profit divided by our GAAP revenue. We define non-GAAP operating income (loss) as our GAAP income (loss) from operations excluding (i) stock-based compensation and related payroll tax, (ii) amortization expense related to acquisition, and (iii) global distribution center transition expense. We define non-GAAP operating margin as our non-GAAP operating income (loss) 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) amortization expense related to acquisition, and (iii) global distribution center transition expense. We define Adjusted EBITDA as our GAAP net income (loss) excluding (i) interest expense (if any), (ii) interest income and other (income) expense, net, (iii) depreciation and amortization expense, (iv) provision (benefit) for income taxes, (v) stock-based compensation and related payroll tax, and global distribution center transition expense. A reconciliation between GAAP and non-GAAP financial measures can be found in the appendix to this document and in the accompany financial results press release.

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Agenda ▪ Q4 Overview ▪ Q4 Financial Performance ▪ FY 2023 Outlook

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Q4'22: Record Revenue and Non-GAAP Profitability Growth Highlights • Q4 revenue grew 9.9% year-over-year; Full-Year revenue grew 12.1% • Geographic performance reflects broad-based demand Consistent Profitability • Adjusted EBITDA was a record $22.3 million, or 28.7% of revenue • Record Non-GAAP EPS of $0.24; $0.44 in 2H of 2022, $0.74 for the year Capital Allocation • 6.1 million shares repurchased during the year at an average price of $13.01 for a total of $79.3 million • $15.9 million in cash dividends paid during the year Key Takeaways • Clearly improved and sustainable earnings power; Q4 Adjusted EBITDA exceeds Adjusted EBITDA for all of 2018-19 • Proven ability to navigate challenges, delivering revenue growth that outpaces industry • Diversification in revenues and customers mitigates macroeconomic dynamics See Appendix for reconciliation to most comparable GAAP financial measures.

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Quarterly Revenue & Non-GAAP Operating Income Operating Income is a Non-GAAP Financial Measure. See Appendix for reconciliation to most comparable GAAP financial measures. $70.7 $62.7 $68.0 $72.1 $77.6 Q4'21 Q1'22 Q2'22 Q3'22 Q4'22 Revenue, $ Millions $17.6 $11.7 $16.1 $19.5 $19.8 Q4'21 Q1'22 Q2'22 Q3'22 Q4'22 Non-GAAP Operating Income, $ Millions $70.7 $77.6 Q4'21 Q4'22 Revenue, $ Millions $17.6 $19.8 Q4'21 Q4'22 Non-GAAP Operating Income, $ Millions

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Quarterly Non-GAAP EPS See Appendix for reconciliation to most comparable GAAP financial measures. $0.12 $0.13 $0.17 $0.20 $0.13 $0.17 $0.20 $0.24 Q1 Q2 Q3 Q4 Non-GAAP EPS, $2021 2022

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Full-Year Revenue & Non-GAAP Operating Income Operating Income is a Non-GAAP Financial Measure. See Appendix for reconciliation to most comparable GAAP financial measures. $232.2 $212.6 $225.5 $250.0 $280.3 2018 2019 2020 2021 2022 Revenue, $ Millions $0.9 $2.6 $35.3 $54.0 $67.0 2018 2019 2020 2021 2022 Non-GAAP Operating Income, $ Millions

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69.2% 30.8% Q4'22 $77.6 million Quarterly Revenue by Customer Vertical 64.7% 63.3% 65.0% 65.1% 62.4% 69.2% 35.3% 36.7% 35.0% 34.9% 37.6% 30.8% Q3'21 Q4'21 Q1'22 Q2'22 Q3'22 Q4'22 Enterprise Service Provider

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Quarterly Revenue by Geography 39% 43% 48% 49% 49% 48% 53% 57% 50% 53% 47% 43% 36% 39% 34% 35% 28% 32% 34% 33% 14% 14% 16% 12% 17% 17% 19% 11% 16% 14% Q3'20 Q4'20 Q1'21 Q2'21 Q3'21 Q4'21 Q1'22 Q2'22 Q3'22 Q4'22 $ Millions Americas APJ EMEA 53%33% 14% Q4'22 $77.6 million

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Consistent Value Creation Business Model Revenue Growth Capital Allocation

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Appendix

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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) Q1'19 Q2'19 Q3'19 Q4'19 FY 2019 Q1'20 Q2'20 Q3'20 Q4'20 FY 2020 Q1'21 Q2'21 Q3'21 Q4'21 FY 2021 Q1'22 Q2'22 Q3'22 Q4'22 FY 2022 Revenue $50.3 $49.2 $52.8 $60.3 $212.6 $53.8 $52.5 $56.6 $62.7 $225.5 $54.8 $59.2 $65.4 $70.7 $250.0 $62.7 $68.0 $72.1 $77.6 $280.3 Non-GAAP Gross Margin % 76.3% 78.0% 78.1% 78.5% 77.8% 78.3% 78.8% 77.6% 79.6% 78.6% 78.9% 77.9% 80.4% 80.7% 79.6% 80.2% 80.6% 80.2% 80.3% 80.3% Non-GAAP Operating Margin % (11.8%) (1.9%) 3.5% 12.7% 1.2% 7.6% 13.8% 17.8% 22.1% 15.6% 19.7% 18.8% 22.2% 24.8% 21.6% 18.6% 23.7% 27.0% 25.5% 23.9% Adjusted EBITDA (non-GAAP) ($3.7) $1.3 $4.0 $10.0 $11.6 $7.2 $9.8 $12.5 $16.1 $45.6 $13.0 $13.2 $16.8 $19.4 $62.4 $13.5 $18.0 $21.3 $22.3 $75.1 Non-GAAP EPS ($0.10) $0.00 $0.02 $0.10 $0.03 $0.05 $0.09 $0.13 $0.18 $0.44 $0.12 $0.13 $0.17 $0.20 $0.63 $0.13 $0.17 $0.20 $0.24 $0.74 Ending Cash & Marketable Securities $122.8 $119.3 $122.6 $129.9 $129.9 $142.9 $143.4 $159.1 $158.1 $158.1 $161.0 $166.8 $187.5 $185.0 $185.0 $164.7 $166.8 $127.8 $151.0 $151.0

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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 f inancials posted the "Investor Relations" section of the A10 Networks website at investors.a10networks.com.

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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.

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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.

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