SEC Form 4 reporting owner

Ambrose Kristen

Ambrose Kristen has filed 13 Form 4 transactions reported between January 22, 2026 and August 28, 2026, as SVP & Chief Accounting Officer of VERTEX PHARMACEUTICALS INC / MA.

Name as filed: Ambrose Kristen

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$2.0M

5 lines

Companies

with Form 4 filings

Latest transaction

Aug 28, 2026

transaction date

Roles and reported holdings

VRTXVERTEX PHARMACEUTICALS INC / MA
Jan 22, 2026 – Aug 28, 2026
SVP & Chief Accounting Officer
Held directly6,624 sh as of Feb 26, 2026 · Form 4
24 months: $2.0M 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
Aug 28, 2026	VRTXSVP & Chief Accounting Officer	Grant or awardCode A · direct	5,000	—	—	11,624	Form 4
Feb 26, 2026	VRTXSVP & Chief Accounting Officer	Open-market saleCode S · direct	357	$483.36	$173K@ $483.36	6,624	Form 4
Feb 25, 2026	VRTXSVP & Chief Accounting Officer	Open-market saleCode S · direct	223	$486.35	$108K@ $486.35	6,981	Form 4
Feb 24, 2026	VRTXSVP & Chief Accounting Officer	Shares withheld for tax or exercise priceCode F · direct	546	$485.11	$265K@ $485.11	7,204	Form 4
Feb 18, 2026	VRTXSVP & Chief Accounting Officer	Open-market saleCode S · direct	638	$473.68	$302K@ $473.68	7,750	Form 4
Feb 17, 2026	VRTXSVP & Chief Accounting Officer	Open-market saleCode S · direct	1,557	$489.46	$762K@ $489.46	8,388	Form 4
Feb 17, 2026	VRTXSVP & Chief Accounting Officer	Shares withheld for tax or exercise priceCode F · direct	598	$483.75	$289K@ $483.75	9,945	Form 4
Feb 17, 2026	VRTXSVP & Chief Accounting Officer	Grant or awardCode A · direct	1,809	—	—	10,543	Form 4
Feb 13, 2026	VRTXSVP & Chief Accounting Officer	Shares withheld for tax or exercise priceCode F · direct	1,393	$487.76	$679K@ $487.76	8,734	Form 4
Feb 11, 2026	VRTXSVP & Chief Accounting Officer	Open-market saleCode S · direct	1,376	$460.43	$634K@ $460.43	10,127	Form 4
Feb 10, 2026	VRTXSVP & Chief Accounting Officer	Shares withheld for tax or exercise priceCode F · direct	592	$468.41	$277K@ $468.41	11,503	Form 4
Jan 22, 2026	VRTXSVP & Chief Accounting Officer	Grant or awardCode A · direct	1,300	—	—	12,095	Form 4
Jan 22, 2026	VRTXSVP & Chief Accounting Officer	Grant or awardCode A · direct	2,950	—	—	10,795	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.