Khoury Sheen George 4

4 · A10 Networks, Inc. · Filed Feb 13, 2026

AI-generated summary of this filing

Updated Feb 13, 2026

A10 Networks (ATEN) EVP Khoury Sheen George Receives RSU & PSU Awards

What Happened

Khoury Sheen George, Executive VP of Sales & Marketing at A10 Networks (ATEN), received two awards on Feb 12, 2026: 7,771 restricted stock units (RSUs) and 7,771 performance-based restricted stock units (PSUs). Both grants are reported at $0.00 (no cash paid).
Total potential units awarded: 15,542. The RSUs are time-based; the PSUs are contingent on achieving specified stock-price performance milestones.

Key Details

Transaction date: 2026-02-12; reporting filed: 2026-02-13 (timely).
Award details and pricing: 7,771 RSUs @ $0.00 (grant A); 7,771 PSUs @ $0.00 (derivative grant A).
Shares owned after transaction: Not disclosed in this filing.
Footnote highlights:
- RSU vesting (F1): 1/3 of RSUs vest on each of the first three anniversaries of the Vesting Commencement Date (2/1/2026), subject to continued service.
- PSU description (F2/F3): Each PSU represents a contingent right to one share, vesting only if specified VWAP-based performance milestones are met during any 100-day trading period between Feb 12, 2026 and Feb 12, 2030. If a milestone is achieved, 50% vests within ~30 days of achievement, and the remaining 50% vests 25% on each of the first and second anniversaries of achievement, subject to continued employment.
No 10b5-1 plan, tax withholding, or cash exercise noted in this filing.

Context

RSUs are time-based retention awards that convert to shares only after vesting; PSUs are performance-contingent and may never convert if targets aren’t met. Both are common forms of executive compensation and do not represent an open-market purchase or sale.

Form 4

Period: 2026-02-12

Executive VP, Sales and Mktg

Transactions

Award
Common Stock
[F1]
2026-02-12+7,771→ 44,294 total
Award
Performance-based Restricted Stock Units
[F2][F3]
2026-02-12+7,771→ 7,771 total
Exp: 2030-02-12→ Common Stock (7,771 underlying)

Footnotes (3)

[F1]Each share is represented by a Restricted Stock Unit ("RSU"). One-third (1/3) of the total RSUs will vest on each of the first three (3) anniversaries of the Vesting Commencement Date (2/1/2026), provided that the Reporting Person continues to serve through each such vesting date.
[F2]Each share is represented by a Performance-based Restricted Stock Unit ("PSU").
[F3]Grant of 7,771 PSUs, each of which represents a contingent right to receive one share of common stock of ATEN, with vesting subject to the achievement of specified levels of the volume weighted average closing prices of a share of ATEN common stock during any one hundred (100) day trading period between February 12, 2026 and February 12, 2030 (each, a "Performance Milestone"). Upon achievement of a Performance Milestone, vesting is subject to continued employment with the Company through the applicable vesting date, the first fifty percent ( 50%) of which will occur within thirty (30) days of achievment of the applicable milestone and the balance to vest twenty-five percent (25%) on each of the first and second anniversaries of achievement of the corresponding Performance Milestone.

Signature

/s/ Jill Osato, as Attorney-in-Fact|2026-02-13

1 file