SEC Form 4 reporting owner

Smither John W

Smither John W has filed 8 Form 4 transactions reported between January 7, 2026 and September 4, 2026, as a reporting owner of NewAmsterdam Pharma Co N.V., Chief Financial Officer of MBX Biosciences, Inc. and Director of GENELUX Corp.

Name as filed: Smither John W

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$75K

2 lines

Companies

with Form 4 filings

Latest transaction

Sep 4, 2026

transaction date

Roles and reported holdings

NAMSNewAmsterdam Pharma Co N.V.
Jan 7, 2026 – Sep 4, 2026
Reporting owner
Held directly8,760 sh as of Sep 4, 2026 · Form 4
24 months: $41K sold
MBXMBX Biosciences, Inc.
Aug 3, 2026
Chief Financial Officer
No common-stock holding reported on a purchase, sale, gift or withholding line.
GNLXGENELUX Corp
Jun 16, 2026 – Jul 1, 2026
Director
Held directly91,403 sh as of Jul 1, 2026 · Form 4
24 months: $35K sold

Transaction history

All 8 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	NAMS	Open-market saleCode S · direct	1,600	$25.32	$41K@ $25.32	8,760	Form 4
Aug 3, 2026	MBXChief Financial Officer	Grant or awardCode A · direct	130,000	—	—	130,000	Form 4
Aug 3, 2026	MBXChief Financial Officer	Grant or awardCode A · direct	28,000	—	—	28,000	Form 4
Jul 1, 2026	GNLXDirector	Open-market saleCode S · direct	12,000	$2.91	$35K@ $2.91	91,403	Form 4
Jun 16, 2026	GNLXDirector	Grant or awardCode A · direct	31,566	—	—	31,566	Form 4
Jun 16, 2026	GNLXDirector	Grant or awardCode A · direct	28,409	—	—	103,403	Form 4
Jan 7, 2026	NAMS	Grant or awardCode A · direct	15,300	—	—	15,300	Form 4
Jan 7, 2026	NAMS	Grant or awardCode A · direct	3,400	—	—	10,360	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.