Welcome to our dedicated page for A10 Networks SEC filings (Ticker: ATEN), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
A10 Networks, Inc. filings document the company’s operating results, capital-return actions, governance matters and executive changes as a public secure networking and cybersecurity provider. Its Form 8-K disclosures include quarterly financial results, Regulation FD presentation materials, board-approved dividend actions and officer departure or compensation arrangements.
Proxy and annual-meeting filings cover director elections, advisory votes on executive compensation, say-on-pay frequency, auditor ratification and stockholder voting outcomes. Together, the filings provide formal records of A10 Networks’ board oversight, compensation governance, common-stock matters and recurring disclosure obligations under the Exchange Act.
A10 Networks, Inc. (ATEN) expanded its Board of Directors and added a new member. On September 9, 2026, the Board approved increasing its size from five to six directors and appointed Mary C. Henry as a director, effective October 5, 2026. She will serve until the 2027 Annual Meeting of Stockholders and until her successor is elected and qualified, or earlier death, resignation or removal. The company states there is no arrangement or understanding with any other person regarding her selection and no related-party transactions requiring disclosure. Ms. Henry will receive compensation under the standard program for non-employee directors and will enter into the company’s standard form of indemnification agreement.
A10 Networks, Inc. (ATEN) director Dana Elizabeth Wolf reported selling 2,652 shares of common stock on 2026-08-25 at $25.65 per share in an open-market or private transaction. After this sale, Wolf directly holds 57,409 shares of A10 Networks common stock. The sale was effected under a Rule 10b5-1 trading plan adopted on May 15, 2026.
A10 Networks, Inc. (ATEN) director Dana Elizabeth Wolf filed a Form 144 notice to sell up to 2,652 shares of the company’s common stock under Rule 144. The shares, held as restricted stock acquired from the issuer on 06/24/2023, have an aggregate market value of $68,023.80 and are planned to be sold through Morgan Stanley Smith Barney LLC on or after 08/25/2026, with the shares listed on the NYSE.
A10 Networks, Inc. General Counsel Robert Scott Weber reported selling 14,086 shares of common stock on August 11, 2026 in an open-market transaction at a weighted average price of $27.86 per share, with individual sale prices ranging from $27.55 to $28.46. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted on May 9, 2026, and Weber now directly holds 50,586 shares of A10 Networks common stock.
ATEN reports a planned sale of 14,086 shares of common stock through Morgan Stanley Smith Barney LLC on the NYSE, with an anticipated sale date of August 11, 2026. The amount consists of 12,521 shares from Performance and Restricted Stock dated February 1, 2024 and 1,565 shares acquired under an Employee Stock Purchase Plan dated May 31, 2024.
On August 6, 2026, A10 Networks, Inc. filed a prospectus supplement to its automatic shelf registration statement on Form S-3, Registration No. 333-298099, with the Securities and Exchange Commission. The company stated that the current report serves solely to provide the related legal opinion.
Pillsbury Winthrop Shaw Pittman LLP delivered an opinion on the legality of the issuance and sale of the securities described in the prospectus supplement, included as Exhibit 5.1, with its consent included in Exhibit 23.1 and the cover page Inline XBRL data file included as Exhibit 104.1.
A10 Networks, Inc. has filed a prospectus supplement registering for resale up to 153,962 shares of common stock. These shares were issued on June 15, 2026 to former shareholders of TrojAI Inc. as part of A10’s acquisition of all outstanding TrojAI shares under a Share Purchase Agreement.
The shares may be sold from time to time by the selling stockholders using various methods and prices; A10 will not receive any proceeds from these sales, though it will bear registration costs. The company highlights risks related to potential stock price volatility, increased supply from registered resales, analyst coverage, and the possibility of reductions or suspension of its dividend policy.
A10 Networks, Inc. has registered a universal shelf on Form S-3 that allows the company and potential selling securityholders to offer, from time to time after effectiveness, a range of securities, including debt securities, common stock, preferred stock, depositary shares and warrants. The aggregate size and exact terms of future offerings will be set in one or more prospectus supplements, which will also specify pricing, detailed terms and the distribution method for each tranche.
The company states that it intends to use net proceeds from any primary offerings as described in the applicable supplements, while it will not receive proceeds from sales by selling securityholders unless otherwise noted. A10 highlights that it is a global provider of secure application and network solutions for enterprises and service providers, and outlines standard New York-law indenture terms for any debt issued, anti-takeover provisions under Delaware law, and broad flexibility to issue up to 500,000,000 authorized shares of common stock and 100,000,000 shares of preferred stock.
A10 Networks reported Q2 2026 total net revenue of $80,137 thousand, up 15.5% year over year, with products at $49,024 thousand and services at $31,113 thousand. Enterprises represented 60% of revenue versus 40% a year earlier, and the Americas contributed 68%.
Net income for Q2 was $8,882 thousand, down from $10,538 thousand, while first-half 2026 net income rose to $20,914 thousand on revenue of $155,137 thousand. Gross margin stayed near 79% as the company increased investment in research and development and general and administrative functions.
The company acquired TrojAI for $34.7 million in cash and $5.0 million in stock, adding $8.8 million of identifiable intangibles and $32.8 million of goodwill focused on AI security. Cash and cash equivalents were $54,679 thousand and marketable securities $302,669 thousand as of June 30, 2026.
A10 has $225.0 million of 2.75% Convertible Senior Notes due 2030; a stock-price condition made the notes convertible in Q3 2026, leading to reclassification of $219.5 million from long-term to current debt. Customer and channel concentration remained high, with one customer contributing 38% of Q2 revenue.
A10 Networks reported second-quarter 2026 revenue of $80.1 million, a 15.5% year-over-year increase, with first-half 2026 revenue reaching $155.1 million, an increase of approximately 14.5% from 2025. GAAP gross margin was 79.1% and non-GAAP gross margin 80.3%.
GAAP net income was $8.9 million, or $0.12 per diluted share, compared with $10.5 million in the prior-year quarter. Non-GAAP net income rose to $18.7 million, or $0.25 per diluted share, and Adjusted EBITDA was $24.4 million, representing 30.5% of revenue.
The company highlighted its role in security-focused next-generation networking and AI infrastructure, noting completion of the TrojAI acquisition and a new multi-year agreement with Microsoft. As of June 30, 2026, cash, cash equivalents and marketable securities totaled $357.3 million.
The Board approved a $0.06 per-share quarterly dividend, payable September 1, 2026 to shareholders of record on August 17, 2026. Management raised full-year 2026 guidance to revenue growth of 12-14% and EPS growth of 14-16% year over year.