A10 Networks adds sixth director Mary C. Henry
A10 Networks is expanding its board from five to six members and appointing Mary C. Henry as a new director effective October 5, 2026.
Rhea-AI Filing Summary
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.
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8-K Event Classification
Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers
1 item
Item 5.02
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers
Governance
Key personnel changes including departures, elections, or appointments of directors and executive officers.
Key Figures
Board size after change: 6 directors
Previous board size: 5 directors
Effective date of Mary C. Henry’s appointment: October 5, 2026
+2 more
5 metrics
Board size after change
6 directors
Board size increased from five to six members approved on September 9, 2026
Previous board size
5 directors
Board size before the September 9, 2026 approval
Effective date of Mary C. Henry’s appointment
October 5, 2026
Date Ms. Henry begins serving as a director
End of stated term
2027 Annual Meeting of Stockholders
Ms. Henry serves until this meeting and until her successor is elected and qualified
Date board action was approved
September 9, 2026
Board approved increase in size and Mary C. Henry’s appointment
Key Terms
Emerging growth company, non-employee directors, indemnification agreement, definitive proxy statement, +1 more
5 terms
Emerging growth company regulatory
"Emerging growth company"
An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.
non-employee directors financial
"standard compensation arrangements for non-employee directors"
Non-employee directors are board members who do not work for the company as salaried employees and usually do not hold day-to-day management roles. They act like outside referees or independent coaches, providing oversight, asking tough questions, and protecting shareholders’ interests; investors care because these directors help ensure management is accountable, reduce conflicts of interest, and influence decisions that affect company strategy and long-term value.
indemnification agreement regulatory
"will enter into the Company’s standard form of indemnification agreement"
An indemnification agreement is a contract in which one party promises to cover losses, costs, or legal claims that another party might face, acting like a tailored safety net or private insurance policy. For investors, it matters because such agreements shift potential financial risk away from a company or its officers and onto the indemnifier, which can affect a company’s future liabilities, cash flow and how risky the investment appears during deal-making or litigation.
definitive proxy statement regulatory
"described in the Company’s definitive proxy statement filed"
A Definitive Proxy Statement is a detailed document that a company sends to its shareholders before a big meeting, like voting on important decisions. It explains what's being voted on and gives important information so shareholders can make informed choices. It matters because it helps shareholders understand and participate in key company decisions.
Item 404(a) of Regulation S-K regulatory
"reported under Item 404(a) of Regulation S-K"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What board change did A10 Networks (ATEN) announce on September 9, 2026?
A10 Networks’ Board approved an increase in its size from five to six members and appointed Mary C. Henry as a new director, effective October 5, 2026.
When will new director Mary C. Henry’s term at A10 Networks (ATEN) end?
Mary C. Henry will serve as a director until A10 Networks’ 2027 Annual Meeting of Stockholders and until her successor is elected and qualified, or her earlier death, resignation or removal.
Is Mary C. Henry joining any A10 Networks (ATEN) board committees immediately?
No. The company states that Ms. Henry has not yet been appointed to any committees of the Board of Directors.
How will A10 Networks (ATEN) compensate new director Mary C. Henry?
Mary C. Henry will receive compensation consistent with A10 Networks’ standard arrangements for non-employee directors, as described in the company’s definitive proxy statement filed March 10, 2026, and will enter into the standard form of indemnification agreement.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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
Date of Report (Date of earliest event reported)
____________________________________________________________________________
(Exact name of the registrant as specified in its charter)
____________________________________________________________________________
| (State or Other Jurisdiction of Incorporation or Organization) | (Commission File Number) | (I.R.S. Employer Identification Number) | ||||||
(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):
____________________________________________________________________________
Securities registered pursuant to Section 12(b) of the Act:
| Title of each class | Trading symbol(s) | Name of each exchange on which registered | ||||||||||||
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 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
(d) On September 9, 2026, the Board of Directors (the “Board”) of A10 Networks, Inc. (the “Company”) approved an increase in the size of the Board from five to six members and appointed Mary C. Henry to serve as a director of the Company, effective as of October 5, 2026, to serve until the Company’s 2027 Annual Meeting of Stockholders and until her respective successor has been elected and qualified, or upon her earlier death, resignation or removal.
Ms. Henry has not yet been appointed to any committees of the Board. There is no arrangement or understanding between Ms. Henry and any other person pursuant to which Ms. Henry was selected as a director. There are no transactions involving Ms. Henry that would be required to be reported under Item 404(a) of Regulation S-K.
In connection with Ms. Henry’s appointment as a director, Ms. Henry will receive compensation consistent with the Company’s standard compensation arrangements for non-employee directors, as described in the Company’s definitive proxy statement filed with the Securities and Exchange Commission on March 10, 2026, and will enter into the Company’s standard form of indemnification agreement a copy of which has been filed as Exhibit 10.1 to the Company’s Registration Statement on Form S-1 (File No. 333-194015) filed with the SEC on March 10, 2014.
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: September 14, 2026
| A10 NETWORKS, INC. | |||||
| By: /s/ Dhrupad Trivedi | |||||
| Dhrupad Trivedi | |||||
| President and CEO | |||||