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.
Parsing A10 Networks’ dense security and networking disclosures can feel like inspecting packet headers one bit at a time. Each 10-K details revenue swings from carrier-grade hardware, recurring software subscriptions and the latest ACOS® cybersecurity upgrades—data that is critical yet buried deep. That’s why investors hunting for A10 Networks insider trading Form 4 transactions or a single risk-factor paragraph often lose hours.
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Whether you track A10 Networks executive stock transactions Form 4 ahead of product refresh cycles, need an A10 Networks earnings report filing analysis, or want context around an A10 Networks 8-K material events explained notice, you’ll find it here. We also cover every A10 Networks proxy statement executive compensation discussion so you can assess incentive alignment. Expect complete coverage, real-time updates, and AI commentary that lets you move from document to decision—without wading through networking acronyms.
A10 Networks (ATEN) Chief Financial Officer Michelle Caron reported grants dated 09/30/2025 totaling 13,706 shares in two award types: restricted stock units and performance-based restricted stock units. The restricted stock units vest in four equal annual installments starting on the vesting commencement date of 10/05/2025, provided continued service. The performance-based RSUs (PSUs) each represent a contingent right to one share and vest only if a specified volume-weighted average closing price milestone is achieved during any 100-day period between 09/30/2025 and 09/30/2029, then subject to continued employment with vesting in three installments: 50% within 30 days of milestone achievement and two additional 25% installments on the first and second anniversaries of achievement. The Form 4 was signed by an attorney-in-fact on 10/02/2025.
A10 Networks (ATEN) Form 3 filed by Michelle Elizabeth Caron, Chief Financial Officer, reports no securities beneficially owned as of the reporting event. The filing is an initial statement under Section 16 and lists the reporter's San Jose address and role as an officer and director. The form includes an exhibit noting a power of attorney and is signed by an attorney-in-fact on behalf of the reporting person.
Insider reporting for A10 Networks, Inc. (ATEN) shows General Counsel Robert Scott Weber disposed of 600 shares of common stock on 08/18/2025 through a gift transaction coded G. The filing reports Mr. Weber continues to beneficially own 56,013 shares directly after the transaction. The form states the 600-share transfer was a bona fide gift to a tax-exempt public charity under Section 501(c)(3) of the Internal Revenue Code. The filing was executed via attorney-in-fact.
A10 Networks CFO Brian Becker reported an insider sale of 6,400 shares of A10 Networks common stock on 08/13/2025 at a price of $18.03 per share. After the sale he beneficially owned 77,599 shares. The Form 4 was signed by an attorney-in-fact on 08/14/2025. The filing discloses a single non-derivative transaction and shows the company officer reducing his direct holdings through a sale.
A10 Networks (ATEN) filed a Rule 144 notice disclosing a proposed sale of 6,400 common shares through Morgan Stanley Smith Barney LLC on the NYSE, with an aggregate market value of $115,392 and approximately 72,152,615 shares outstanding. The securities listed were recently acquired as equity awards: 1,199 performance shares on 02/20/2025, 2,493 performance shares on 02/13/2025, and 2,708 restricted stock units on 02/01/2025. The seller indicates the sale is planned for 08/13/2025.
The filing also states there were no securities sold by the reporting person in the past three months and includes the standard representation that the seller does not possess undisclosed material adverse information about the issuer. The planned sale is small relative to the company’s outstanding shares (under 0.01%), and the transaction is presented as a routine Rule 144 disposition of recently vested award shares.
Legal & General Group Plc and its investment management subsidiaries have filed Amendment No. 1 to Schedule 13G reporting their aggregate ownership of A10 Networks (ATEN) common stock. As of the event date 12/31/2021, the group beneficially owns 2,405,702 shares, representing 3.1 % of ATEN’s outstanding shares. All voting and dispositive authority is held on a shared basis; no entity reports sole voting or dispositive power.
Break-down by entity:
- Legal & General Investment Management Ltd – 2,388,253 shares (3.1 %)
- LGIM Managers (Europe) Ltd – 2,386,395 shares (3.08 %)
- Legal & General UCITS ETF Plc – 2,386,395 shares (3.1 %)
- Legal & General Investment Management America Inc – 17,449 shares (0.02 %)
Mary Ann Colledge, Head of Conduct Advisory, signed on behalf of each entity on 07/02/2025, certifying the accuracy of the information. No indication of recent purchases, sales, or intent to influence management is provided, suggesting the disclosure is a routine regulatory update rather than a strategic move.
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