Ambarella (AMBA) Director Chantelle Yvette Breithaupt Receives Award

What Happened Chantelle Yvette Breithaupt, an independent director of Ambarella, received an award of 3,151 restricted stock units (RSUs) on September 8, 2026. The Form 4 reports the grant with a per-share acquisition price of $0.00 (transaction code A), i.e., a compensation award rather than an open-market purchase or sale.

Key Details

• Transaction date: 2026-09-08; Filing date (Form 4): 2026-09-10 (timely within the 2-business-day window).
• Security/amount: 3,151 Ordinary Shares in the form of RSUs; reported acquisition price $0.00 (award).
• Shares owned after transaction: not specified in the provided filing.
• Footnote: Grant vests as to 1/4 of the shares every three months beginning on the vesting start date of Sept 15, 2026, and will be 100% vested on Sept 15, 2027, subject to continued service.
• No 10b5-1 plan, tax-withholding, or sale information was disclosed in the filing.

Context RSU awards are standard director compensation and do not represent a market purchase; their economic value converts to shares only as they vest (and may trigger taxable events then). For retail investors, purchases by insiders can be more informative about conviction than routine compensation grants, which are driven by board policy and service.