SEC Form 4 reporting owner

Porter Stuart D

Porter Stuart D has filed 6 Form 4 transactions reported between December 4, 2025 and July 10, 2026, as Director of GameSquare Holdings, Inc., Director of NOMAD POWER SOLUTIONS, INC. and a reporting owner of AirJoule Technologies Corp..

Name as filed: Porter Stuart D

Open-market buys, 24 mo

$500K

1 lines

Open-market sales, 24 mo

None

reported

Companies

with Form 4 filings

Latest transaction

Jul 10, 2026

transaction date

Roles and reported holdings

GAMEGameSquare Holdings, Inc.
Dec 4, 2025 – Jul 10, 2026
Director
No common-stock holding reported on a purchase, sale, gift or withholding line.
NMADNOMAD POWER SOLUTIONS, INC.
May 29, 2026
Director
No common-stock holding reported on a purchase, sale, gift or withholding line.
AIRJAirJoule Technologies Corp.
Jan 15, 2026 – May 28, 2026
Reporting owner
Held directly776,879 sh as of Jan 15, 2026 · Form 4
24 months: $500K bought

Transaction history

All 6 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Jul 10, 2026	GAMEDirector	Option exerciseCode M · direct	150,000	—	—	1,199,357	Form 4
May 29, 2026	NMADDirector	Grant or awardCode A · direct	25,000	—	—	25,000	Form 4
May 28, 2026	AIRJ	Grant or awardCode A · direct	30,227	—	—	30,227	Form 4
May 28, 2026	AIRJ	Option exerciseCode M · direct	28,037	—	—	804,916	Form 4
Jan 15, 2026	AIRJ	Open-market purchaseCode P · direct	153,846	$3.25	$500K@ $3.25	776,879	Form 4
Dec 4, 2025	GAMEDirector	Option exerciseCode M · direct	150,000	—	—	1,049,357	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.