SEC Form 4 reporting owner

Crook Nathaniel Glenn

Crook Nathaniel Glenn has filed 5 Form 4 transactions reported between April 15, 2026 and September 4, 2026, as Chief Commercial Officer of Amplitude, Inc..

Name as filed: Crook Nathaniel Glenn

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$3.9M

1 lines

Companies

with Form 4 filings

Latest transaction

Sep 4, 2026

transaction date

Roles and reported holdings

AMPLAmplitude, Inc.
Apr 15, 2026 – Sep 4, 2026
Chief Commercial Officer
Held directly1,622,696 sh as of Sep 4, 2026 · Form 4
24 months: $3.9M sold

Transaction history

All 5 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 4, 2026	AMPLChief Commercial Officer	Open-market saleCode S · direct	300,000	$12.99	$3.9M@ $12.99	1,622,696	Form 4
Aug 17, 2026	AMPLChief Commercial Officer	Shares withheld for tax or exercise priceCode F · direct	109,368	$13.03	$1.4M@ $13.03	1,922,696	Form 4
May 15, 2026	AMPLChief Commercial Officer	Shares withheld for tax or exercise priceCode F · direct	101,292	$6.06	$614K@ $6.06	2,032,064	Form 4
Apr 15, 2026	AMPLChief Commercial Officer	Grant or awardCode A · direct	974,930	—	—	2,131,026	Form 4
Apr 15, 2026	AMPLChief Commercial Officer	Grant or awardCode A · direct	278,551	—	—	1,156,096	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.