SEC Form 4 reporting owner

Young John Alexander

Young John Alexander has filed 13 Form 4 transactions reported between December 17, 2025 and September 18, 2026, as CFO of AMBARELLA INC.

Name as filed: Young John Alexander

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$1.7M

9 lines

Companies

with Form 4 filings

Latest transaction

Sep 18, 2026

transaction date

Roles and reported holdings

AMBAAMBARELLA INC
Dec 17, 2025 – Sep 18, 2026
CFO
Held directly107,806 sh as of Sep 18, 2026 · Form 4
24 months: $1.7M sold

Transaction history

All 13 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 18, 2026	AMBACFO	Open-market saleCode S · direct	1,896	$67.28	$128K@ $67.28	107,806	Form 4
Sep 17, 2026	AMBACFO	Open-market saleCode S · direct	3,126	$64.83	$203K@ $64.83	109,702	Form 4
Jun 17, 2026	AMBACFO	Open-market saleCode S · direct	1,847	$66.98	$124K@ $66.98	112,590	Form 4
Jun 17, 2026	AMBACFO	Open-market saleCode S · direct	3,186	$67.87	$216K@ $67.87	114,437	Form 4
May 26, 2026	AMBACFO	Option exerciseCode M · direct	400	$55.80	$22K@ $55.80	118,023	Form 4
Apr 21, 2026	AMBACFO	Open-market saleCode S · direct	1,971	$60.00	$118K@ $60.00	117,623	Form 4
Mar 19, 2026	AMBACFO	Open-market saleCode S · direct	3,038	$54.14	$164K@ $54.14	119,594	Form 4
Mar 18, 2026	AMBACFO	Grant or awardCode A · direct	5,560	—	—	122,632	Form 4
Mar 17, 2026	AMBACFO	Open-market saleCode S · direct	4,577	$52.77	$242K@ $52.77	117,072	Form 4
Mar 17, 2026	AMBACFO	Option exerciseCode M · direct	3,556	—	—	121,649	Form 4
Mar 2, 2026	AMBACFO	Grant or awardCode A · direct	15,201	—	—	117,939	Form 4
Dec 18, 2025	AMBACFO	Open-market saleCode S · direct	3,791	$72.96	$277K@ $72.96	102,738	Form 4
Dec 17, 2025	AMBACFO	Open-market saleCode S · direct	2,579	$71.82	$185K@ $71.82	106,529	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.