Ambarella (AMBA) COO Lee Chan W Sells 2,893 Shares

What Happened

• Lee Chan W, Chief Operations Officer of Ambarella (AMBA), sold 2,893 shares on 2026-09-17 at $64.83 per share, generating proceeds of about $187,553. This was a sale (not a purchase) and appears to be a routine disposition rather than an accumulation of shares.

Key Details

• Transaction date and price: 2026-09-17, 2,893 shares @ $64.83/share (total ≈ $187,553).
• Sale type: Reported as open-market/private sale (Form 4 code S).
• Shares owned after transaction: Not stated in the provided filing.
• Footnotes: F1 — Shares were sold to pay tax obligations resulting from the vesting of restricted stock units (RSUs). F2 — Includes 238 shares acquired under the company’s employee stock purchase plan on 2026-09-15.
• Filing timeliness: Reported on 2026-09-18 for a 2026-09-17 transaction (within the typical Form 4 reporting window; not indicated as late).

Context

• Sales made to cover tax withholding on vested RSUs are common and are generally considered routine liquidity transactions rather than strong signals about an insider’s view of the company’s prospects. Purchases or large, unexplained sales tend to be more informative about insider sentiment.