Young John Alexander 4

What Happened
Ambarella CFO Young John Alexander exercised 400 stock options at $55.80 per share (total cost $22,320) and immediately sold 400 common shares in the open market at $96.00 per share, receiving $38,400. The transactions were reported on a Form 4 with transaction date May 26, 2026 and filing date May 28, 2026.

Key Details

• Transaction date: 2026-05-26; Form 4 filed: 2026-05-28 (timely filing).
• Exercise: 400 shares acquired by exercise at $55.80/share (total $22,320).
• Sale: 400 shares sold in open market at $96.00/share (total proceeds $38,400).
• The filing shows a derivative disposition line at $0, reflecting conversion/disposition of the optioned derivative upon exercise.
• Footnote F1: Sales effected pursuant to a Rule 10b5-1 trading plan adopted January 15, 2026.
• Footnote F2: Option vesting schedule noted (25% vested March 27, 2018; 1/48 monthly thereafter).
• Shares owned after the transaction: not provided in the excerpt of the filing.

Context
This was an exercise of options followed by an immediate sale (cashless/sequential exercise & sale), a common way for insiders to monetize vested option grants. The sale was conducted under a pre-established 10b5-1 plan, which typically indicates the trades were scheduled in advance rather than timed to inside information.