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. Chief Financial Officer Michelle Elizabeth Caron filed an amended insider report to correct a prior tax-withholding entry. The amendment updates the number of shares withheld and the price used for shares retained to cover taxes on a performance-based RSU grant that vested on May 14, 2026.
The corrected record shows 760 shares of common stock were withheld on a non-discretionary basis at $28.03 per share for tax purposes. After this correction, Caron directly owns 35,614 shares of A10 Networks common stock as of May 15, 2026.
A10 Networks, Inc. Chief Executive Officer Dhrupad Trivedi filed an amended insider report to correct the share price used in a prior tax-withholding entry. The amendment reflects 32,858 shares of common stock withheld on a non-discretionary basis at $28.03 per share to satisfy taxes on performance-based restricted stock units that vested on May 14, 2026. After this routine tax-withholding disposition, Trivedi directly holds 887,847 shares of A10 Networks common stock.
A10 Networks, Inc. General Counsel Robert Scott Weber filed an amended insider report updating a prior tax-related share disposition. The filing corrects the price per share reported for 1,930 shares of common stock that were withheld on a non-discretionary basis to cover taxes tied to performance-based restricted stock units that vested on May 14, 2026. These RSUs were granted on February 6, 2025 and February 12, 2026. Following the withholding, Weber directly holds 65,527 shares of A10 Networks common stock.
A10 Networks, Inc. Chief Financial Officer Michelle Elizabeth Caron reported routine equity compensation activity involving performance-based restricted stock units. On May 14, 2026, she exercised performance-based RSUs into 2,989 shares of common stock at $0.00 per share, following achievement of specified stock price performance conditions. These shares remain subject to time-based vesting, with portions vesting on May 14, 2026 and on the first and second anniversaries of April 27, 2026, contingent on continued employment. On May 15, 2026, 748 shares of common stock were automatically withheld at $27.00 per share to cover tax obligations, a non-discretionary tax-withholding disposition rather than an open-market sale. After these transactions, she directly holds 35,626 shares of A10 Networks common stock.
A10 Networks, Inc. CEO Dhrupad Trivedi reported routine equity compensation activity. On May 14, 2026, he exercised performance-based restricted stock units covering 129,164 shares of common stock. On May 15, 2026, 32,858 shares were automatically withheld at $27.00 per share to cover taxes, leaving him with 887,847 common shares held directly.
A10 Networks, Inc. General Counsel Robert Scott Weber reported routine equity compensation activity involving performance-based restricted stock units (RSUs). On May 14, 2026, he exercised RSUs that had met performance conditions, converting 3,706 and 3,882 performance-based RSUs into an equal number of common shares at a $0.00 exercise price. These awards vest over time, with one-half vesting on May 14, 2026 and the remaining quarters on the first and second anniversaries of the applicable achievement dates, conditioned on continued employment. On May 15, 2026, 1,930 common shares were automatically withheld at $27.00 per share to satisfy tax obligations related to the RSU vesting. After these transactions, Weber directly holds 65,527 shares of A10 Networks common stock, indicating he retains the vast majority of his equity position following this compensation-related event.
A10 Networks, Inc. disclosed a Separation Agreement and Release with former Executive Vice President, Worldwide Sales and Marketing, Sheen Khoury, following his April 27, 2026 termination. On the agreement’s Effective Date, the company will accelerate vesting of 11,667 restricted stock units and 21,385 performance-based restricted stock units under its 2023 Stock Incentive Plan, in exchange for an effective release of claims. Other than this equity vesting acceleration, no additional compensation or benefits will be provided in connection with his termination.
A10 Networks reported quarterly net revenue of $75.0 million for the three months ended March 31, 2026, up from $66.1 million a year earlier. Net income rose to $12.0 million, compared with $9.5 million, while gross margin stayed high at about 80%.
Growth was driven mainly by stronger product sales to enterprise customers, especially in the Americas, which supplied 67% of revenue. Service provider revenue declined, particularly in APJ and EMEA, and overall demand shifted further toward enterprise accounts.
The company ended the quarter with $57.9 million in cash and cash equivalents and $311.9 million in marketable securities, against $219.2 million in carrying value of 2.75% convertible notes due 2030. Operating cash flow was positive but lower year over year at $2.2 million, and A10 continued returning capital through share repurchases and a $0.06 per-share dividend.
A10 Networks director Eric Singer sold shares in the company. On this Form 4, he reported an open-market sale of 24,698 shares of A10 Networks common stock at a weighted average price of $27.21 per share, with individual sale prices ranging from $26.88 to $27.41. After the transaction, he directly holds 68,806 shares.
A10 Networks, Inc. Chief Executive Officer Dhrupad Trivedi reported performance-based equity vesting and related tax-withholding transactions in company stock. On May 5, 2026, he exercised performance-based restricted stock units that had met performance conditions, converting them into shares of common stock.
Footnotes explain that 63,406 units from a February 6, 2025 grant and 65,753 units from a February 12, 2026 grant satisfied specified volume weighted average price targets in April 2026. These shares remain subject to time-based vesting, with one-half vesting on May 5, 2026 and one-fourth on each of the first and second anniversaries of their April 2026 achievement dates, subject to continued employment.
On May 6, 2026, 32,858 shares of common stock were automatically withheld on a non-discretionary basis for tax purposes at $27.13 per share. After these transactions, Trivedi directly holds 791,536 shares of A10 Networks common stock.