AST SpaceMobile (ASTS) CFO Andrew Martin Johnson Sells Shares for Tax Withholding

What Happened

• Andrew Martin Johnson, AST SpaceMobile's Chief Financial Officer and Chief Legal Officer (and a Director), disposed of shares on August 15, 2026 to satisfy tax withholding obligations tied to equity awards. The Form 4 reports two withholding dispositions: 9,838 shares at $70.98 each for $698,301, and 12,297 shares at $70.98 each for $872,841 — a combined value of $1,571,142.
• These were not open-market selling decisions but withholding of shares to cover taxes upon the vesting of equity awards (see footnotes). After withholding, the awards resulted in net vesting of 15,162 shares from RSUs and 18,953 shares from performance-based stock units (PSUs).

Key Details

• Transaction date: August 15, 2026. Filing date (Form 4): August 18, 2026.
• Prices and amounts: 9,838 shares @ $70.98 = $698,301; 12,297 shares @ $70.98 = $872,841; total value ≈ $1.571M.
• Underlying awards: 25,000 RSUs (net vested 15,162 after 9,838 withheld); 31,250 PSUs (net vested 18,953 after 12,297 withheld). Withholding is reported under footnotes F1 and F2 and was done pursuant to Rule 16b-3.
• Shares owned after the transaction: not provided in the excerpt of the filing.
• Filing timeliness: Form lists transaction on 8/15/2026 and was filed 8/18/2026; the filing does not indicate an exception or late reporting in the provided data.

Context

• This is a tax-withholding disposition (code F) tied to vesting, not an outright sale for investment purposes. Companies commonly withhold shares to cover tax liabilities when RSUs/PSUs vest; such transactions are routine and do not necessarily signal the insider’s view of the stock.
• For retail investors: purchases by insiders tend to be viewed as stronger signals than routine withholdings. This report documents a standard net-settlement of equity awards rather than a market-driven divestiture.