[Form 3] Glass House Brands Inc. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Glass House Brands Inc. executive William Tu, SVP and Corporate Controller, filed an initial ownership report. He directly holds Equity Shares of the company and a significant package of Restricted Stock Units (RSUs) that convert into Equity Shares on future vesting dates.

The filing shows 159,204 RSUs outstanding, each representing one Equity Share at settlement, and 26,302 Equity Shares held directly. The RSUs come from grants made in July 2023, September 2024, and February 2025, with vesting scheduled in quarterly installments from May 2026 through September 2028, subject to the terms of the applicable award agreements.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Tu William

Role SVP, Corporate Controller

Type	Security	Shares	Price	Value
holding	Restricted Stock Unit	--	--	--
holding	Equity Shares	--	--	--

Holdings After Transaction: Restricted Stock Unit — 159,204 shares (Direct); Equity Shares — 26,302 shares (Direct)

Footnotes (1)

1. The Subordinate Voting Shares, Restricted Voting Shares, and/or Limited Voting Shares of Glass House Brands Inc. ("GHBI") (collectively, the "Equity Shares"). The reporting person was granted RSU awards covering 8,333 RSUs on July 12, 2023 (the "July RSUs"), 34,800 RSUs on September 1, 2024 (the "September RSUs"), and 116,071 RSUs on February 1, 2025 (the "February RSUs"), for an aggregate of 159,204 RSUs. The July RSUs vest on May 18, 2026. The September RSUs vest in six equal quarterly installments of 5,800 RSUs on June 1, 2026; September 1, 2026; December 1, 2026; March 1, 2027; June 1, 2027; and September 1, 2027, subject to the terms of the applicable award agreement. The February RSUs vest in nine quarterly installments, with an initial tranche of 38,691 RSUs vesting on September 16, 2026, and the remaining 77,380 RSUs vesting in eight substantially equal quarterly installments of 9,672 or 9,673 RSUs on December 16, 2026; March 16, 2027; June 16, 2027; September 16, 2027; December 16, 2027; March 16, 2028; June 16, 2028; and September 16, 2028, in each case subject to the terms and conditions of the applicable award agreement. Each RSU represents the right to receive, at settlement, one share of GHBI's Equity Shares.

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Tu William

(Last) (First) (Middle)

3645 LONG BEACH BLVD

(Street)

LONG BEACH 90807

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Glass House Brands Inc. [ GLASF ]

3a. Foreign Trading Symbol
[GLAS.AU]

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Corporate Controller

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Equity Shares(1)	26,302	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit	(2)	(2)	Equity Shares(1)	159,204(2)	(3)	D

Explanation of Responses:

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

2. The reporting person was granted RSU awards covering 8,333 RSUs on July 12, 2023 (the "July RSUs"), 34,800 RSUs on September 1, 2024 (the "September RSUs"), and 116,071 RSUs on February 1, 2025 (the "February RSUs"), for an aggregate of 159,204 RSUs. The July RSUs vest on May 18, 2026. The September RSUs vest in six equal quarterly installments of 5,800 RSUs on June 1, 2026; September 1, 2026; December 1, 2026; March 1, 2027; June 1, 2027; and September 1, 2027, subject to the terms of the applicable award agreement. The February RSUs vest in nine quarterly installments, with an initial tranche of 38,691 RSUs vesting on September 16, 2026, and the remaining 77,380 RSUs vesting in eight substantially equal quarterly installments of 9,672 or 9,673 RSUs on December 16, 2026; March 16, 2027; June 16, 2027; September 16, 2027; December 16, 2027; March 16, 2028; June 16, 2028; and September 16, 2028, in each case subject to the terms and conditions of the applicable award agreement.

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

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Benjamin Vega, Attorney-in-Fact for William Tu	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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* Form 3: SEC 1473 (03-26)