SEC Form 4 reporting owner

Long Jason Thomas

Long Jason Thomas has filed 6 Form 4 transactions reported between January 5, 2026 and September 18, 2026, as Chief Executive Officer of WaterBridge Infrastructure LLC and a reporting owner of LandBridge Co LLC.

Name as filed: Long Jason Thomas

Open-market buys, 24 mo

$199K

2 lines

Open-market sales, 24 mo

None

reported

Companies

with Form 4 filings

Latest transaction

Sep 18, 2026

transaction date

Roles and reported holdings

WBIWaterBridge Infrastructure LLC
Jan 5, 2026 – Sep 18, 2026
Chief Executive Officer
Held directly169,293 sh as of Sep 18, 2026 · Form 4
24 months: $99K bought
LBLandBridge Co LLC
Jan 5, 2026 – Aug 4, 2026
Reporting owner
Held directly190,121 sh as of Jul 1, 2026 · Form 4
24 months: $100K 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
Sep 18, 2026	WBIChief Executive Officer	Shares withheld for tax or exercise priceCode F · direct	18,036	$30.86	$557K@ $30.86	169,293	Form 4
Aug 4, 2026	LB	Grant or awardCode A · direct	20,358	—	—	210,479	Form 4
Aug 4, 2026	WBIChief Executive Officer	Grant or awardCode A · direct	44,829	—	—	187,329	Form 4
Jul 1, 2026	LB	Shares withheld for tax or exercise priceCode F · direct	33,425	$72.30	$2.4M@ $72.30	190,121	Form 4
Jan 5, 2026	LB	Open-market purchaseCode P · direct	2,143	$46.59	$100K@ $46.59	223,546	Form 4
Jan 5, 2026	WBIChief Executive Officer	Open-market purchaseCode P · direct	5,000	$19.84	$99K@ $19.84	142,500	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.