SEC Form 4 reporting owner

Wang Feng-Ming

Wang Feng-Ming has filed 20 Form 4 transactions reported between December 17, 2025 and September 17, 2026, as CEO of AMBARELLA INC.

Name as filed: Wang Feng-Ming

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$10.1M

14 lines

Companies

with Form 4 filings

Latest transaction

Sep 17, 2026

transaction date

Roles and reported holdings

AMBAAMBARELLA INC
Dec 17, 2025 – Sep 17, 2026
CEO
Held directly767,759 sh as of Sep 17, 2026 · Form 4
24 months: $10.1M sold

Transaction history

All 20 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 17, 2026	AMBACEO	Open-market saleCode S · direct	6,086	$64.83	$395K@ $64.83	767,759	Form 4
Jul 1, 2026	AMBACEO	Open-market saleCode S · direct	16,250	$90.08	$1.5M@ $90.08	773,607	Form 4
Jun 17, 2026	AMBACEO	GiftCode G · direct	10,000	—	—	789,857	Form 4
Jun 17, 2026	AMBACEO	Open-market saleCode S · direct	6,204	$67.87	$421K@ $67.87	799,857	Form 4
May 26, 2026	AMBACEO	Open-market saleCode S · direct	9,150	$92.05	$842K@ $92.05	806,061	Form 4
May 26, 2026	AMBACEO	Open-market saleCode S · direct	6,065	$91.23	$553K@ $91.23	815,211	Form 4
May 26, 2026	AMBACEO	Open-market saleCode S · direct	17,285	$90.38	$1.6M@ $90.38	821,276	Form 4
Mar 19, 2026	AMBACEO	Open-market saleCode S · direct	8,083	$54.14	$438K@ $54.14	838,561	Form 4
Mar 18, 2026	AMBACEO	Grant or awardCode A · direct	15,686	—	—	846,644	Form 4
Mar 17, 2026	AMBACEO	Open-market saleCode S · direct	18,976	$52.77	$1.0M@ $52.77	830,958	Form 4
Mar 17, 2026	AMBACEO	Option exerciseCode M · direct	27,598	—	—	849,934	Form 4
Mar 2, 2026	AMBACEO	Grant or awardCode A · direct	53,203	—	—	822,182	Form 4
Mar 2, 2026	AMBACEO	Open-market saleCode S · direct	12,040	$61.42	$740K@ $61.42	768,979	Form 4
Mar 2, 2026	AMBACEO	Open-market saleCode S · direct	32,460	$60.91	$2.0M@ $60.91	781,019	Form 4
Mar 2, 2026	AMBACEO	Open-market saleCode S · direct	2,600	$59.53	$155K@ $59.53	813,479	Form 4
Mar 2, 2026	AMBACEO	Open-market saleCode S · direct	1,900	$58.77	$112K@ $58.77	816,079	Form 4
Mar 2, 2026	AMBACEO	Open-market saleCode S · direct	1,000	$56.83	$57K@ $56.83	817,979	Form 4
Mar 2, 2026	AMBACEO	Option exerciseCode M · direct	50,000	$41.36	$2.1M@ $41.36	818,979	Form 4
Dec 19, 2025	AMBACEO	GiftCode G · direct	15,000	—	—	768,979	Form 4
Dec 17, 2025	AMBACEO	Open-market saleCode S · direct	4,950	$71.82	$356K@ $71.82	783,979	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.