Weber Robert Scott 4

What Happened
Robert Scott Weber, General Counsel of A10 Networks (ATEN), had two performance-based RSU awards certified and converted to common stock. The filing shows conversions of 3,882 and 3,707 performance-based restricted stock units (reported as acquisitions at $0.00, code M) after performance conditions were met. Per the awards’ vesting schedule, one-half of each award vested on May 5, 2026. To cover tax withholding, 1,930 shares were withheld/sold on May 6, 2026 at $27.13 per share, yielding proceeds of $52,361 (reported as code F).

Key Details

• Transaction dates: May 5, 2026 (conversion/vesting) and May 6, 2026 (shares withheld/sold for taxes).
• Reported entries: two conversions/acquisitions (M) of 3,882 and 3,707 shares at $0.00; one disposition (F) of 1,930 shares at $27.13 for $52,361.
• Tax withholding: 1,930 shares were automatically withheld to satisfy tax liabilities (footnote F3 breaks this into 987 and 943 shares withheld from the two grants).
• Vesting schedule: Footnotes state the awards are performance-based (certified April 16 and April 22, 2026) but remain subject to time-based vesting — one-half vested May 5, 2026, with the remaining one-fourth vesting on each of the first and second anniversaries of the performance certification dates, subject to continued employment.
• Shares owned after the transaction: the Form 4 references Table I for post-transaction holdings; the precise total held after withholding is not included in the excerpt provided.
• Filing timeliness: Form was filed May 6, 2026 for transactions on May 5–6, which is within normal Form 4 timing (no late filing indicated).

Context
These were performance-based RSUs converting to shares (reported as acquisitions at no purchase price). The 1,930-share disposition was a routine tax-withholding/cashless settlement, not an open-market sale for investment reasons. Such withholding is common when RSUs vest and does not by itself indicate insider market sentiment.