William Tu - 01 Jun 2026 Form 4 Insider Report for Glass House Brands Inc. (GLASF)

Reporting relationship: SVP, Corporate Controller
Issuer ticker: GLASF
Reported as of: 01 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Jun 2026, 21:30:06 UTC
Prior SEC filing: 26 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Benjamin Vega, Attorney-in-Fact for William Tu

Key filing fact

William Tu filed Form 4 for Glass House Brands Inc. (GLASF) on 04 Jun 2026.

Key facts

This page summarizes William Tu's Form 4 filing for Glass House Brands Inc. (GLASF).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 04 Jun 2026, 21:30.

Change

Previous filing in this sequence was filed on 26 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002120766 Primary reporting owner

Tu William

Relationship: SVP, Corporate Controller
Address: 3645 LONG BEACH BLVD, LONG BEACH
Signature: /s/ Benjamin Vega, Attorney-in-Fact for William Tu
Signature date: 04 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GLASF transaction

Equity Shares

Options Exercise

Transaction value
Shares: +5,800
Change %
Price
Shares after: 5,800
Date: 01 Jun 2026
Ownership: Direct
Footnotes: F1, F3

GLASF transaction

Equity Shares

Tax liability

Transaction value
Shares: -1,982
Change %: -34%
Price: $11.37^*
Shares after: 3,818
Date: 03 Jun 2026
Ownership: Direct
Footnotes: F1, F4

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

GLASF transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -5,800
Change %: -3.8%
Price: $0.000000^*
Shares after: 145,071
Date: 01 Jun 2026
Ownership: Direct
Underlying class: Equity Shares
Underlying amount: 5,800
Exercise price: $0.000000
Footnotes: F1, F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

The Subordinate Voting Shares, Restricted Voting Shares, and/or Limited Voting Shares of Glass House Brands Inc. ("GHBI") (collectively, the "Equity Shares").

Footnote F2

The Reporting Person was granted RSU awards covering 34,800 RSUs on September 1, 2024 (the "September RSUs"). 5,800 of the September RSUs vested on June 1, 2026.

Footnote F3

Each RSU represents the right to receive, at settlement, one share of GHBI's Equity Shares.

Footnote F4

The Equity Shares were sold to satisfy the Reporting Person's tax withholding obligations. Represents the Equity Shares sold at a weighted average sale price of $11.37 per share. The Equity Shares were sold in multiple transactions at prices ranging from $11.35 to $11.39. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, Issuer, or a security holder of Issuer, full information regarding the number of Equity Shares sold at each separate price.