Robert Scott Weber - 12 Dec 2025 Form 4 Insider Report for A10 Networks, Inc. (ATEN)

Signature
/s/ Jill Osato, Attorney-in-fact
Issuer symbol
ATEN
Transactions as of
12 Dec 2025
Net transactions value
-$16,761
Form type
4
Filing time
16 Dec 2025, 18:07:20 UTC
Previous filing
19 Aug 2025
Next filing
16 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Weber Robert Scott General Counsel C/O A10 NETWORKS, INC., 2300 ORCHARD PARKWAY, SAN JOSE /s/ Jill Osato, Attorney-in-fact 16 Dec 2025 0001936128

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ATEN Common Stock Gift $0 -600 -1% $0.000000 56,850 12 Dec 2025 Direct F1, F2
transaction ATEN Common Stock Tax liability $16,761 -925 -1.6% $18.12 55,925 15 Dec 2025 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents a bona fide gift by Reporting Person to a tax-exempt public charity under Section 501(c)(3) of the Internal Revenue Code.
F2 Includes an aggregate of 1,437 shares acquired by the Reporting Person on May 31, 2025 and November 30, 2025 pursuant to the Issuer's Employee Stock Purchase Plan.
F3 Shares automatically withheld, on a non-discretionary basis, for tax purposes related to a January 30, 2024 restricted stock unit grant that vested on December 13, 2025.