Young John Alexander 4

What Happened

• Young John Alexander, Ambarella’s Chief Financial Officer, reported multiple transactions around March 17–19, 2026. He sold a total of 7,615 shares in open-market/private sales (4,577 shares on 3/17 at $52.77 and 3,038 shares on 3/19 at $54.14) for aggregate proceeds of approximately $406,005.
• The filing also shows an exercise/conversion of 3,556 derivative units on 3/17 and a contemporaneous derivative disposition (reported at $0), plus a grant/award of 5,560 restricted stock units (RSUs) on 3/18 (reported at $0 since RSUs are contingent rights to shares).

Key Details

• Transaction dates and prices:
  • 2026-03-17: Sold 4,577 shares @ $52.77 — proceeds $241,528.
  • 2026-03-17: Exercised/converted 3,556 derivative units (M code).
  • 2026-03-18: Awarded 5,560 RSUs (A code) as annual bonus (no cash paid).
  • 2026-03-19: Sold 3,038 shares @ $54.14 — proceeds $164,477.
• Total reported sale proceeds: ~$406,005.
• Shares owned after the transaction: not specified in the supplied summary (see Form 4 for full holdings).
• Notable footnotes:
  • F1/F4: Each RSU equals a contingent right to one ordinary share; the 5,560 RSUs were issued as fully-vested RSUs paid as the FY2026 annual bonus.
  • F3: Some shares were sold to pay tax obligations from RSU vesting.
  • F2: Includes 154 shares acquired under the company ESPP on March 16, 2026.
  • F5: A prior performance-based RSU grant vested at 100% of target following the performance period (Feb 1, 2023–Jan 31, 2026).
• Filing timeliness: Report filed 2026-03-19 for transactions through 2026-03-17 — appears timely (filed within typical Section 16 reporting window).

Context

• The filing shows both sales and awards. Sales appear related in part to tax-withholding obligations from RSU vesting (per footnote F3), a common administrative reason for insider sales that does not necessarily indicate a change in outlook.
• The M-code entries indicate conversion/exercise of derivatives (e.g., RSUs or options) into shares; some of those resulting shares were either sold or withheld for taxes rather than cashed out for profit.
• Awards (RSUs) and ESPP purchases represent compensation/employee participation and are different from open-market purchases as signals of conviction.