Glass House SVP sells 15,888 shares

Glass House Brands Inc. senior vice president and corporate controller William Tu reported an open-market sale of 15,888 Equity Shares of the company on May 19, 2026.

Rhea-AI Filing Summary

Glass House Brands Inc. senior vice president and corporate controller William Tu reported an open-market sale of 15,888 Equity Shares of the company on May 19, 2026. The shares were sold at a weighted average price of $10.08, in multiple trades between $9.88 and $10.20.

After this transaction, Tu directly holds 18,747 Equity Shares. The filing notes that detailed trade-by-trade pricing information is available from Tu upon request by regulators, the company, or its shareholders.

Insider Trade Summary

Net Seller: 15,888 shares

Net Sell 1 txn

Insider Tu William

Role SVP, Corporate Controller

Sold 15,888 shs ($160K)

Type	Security	Shares	Price	Value
Sale	Equity Shares	15,888	$10.08	$160K

Holdings After Transaction: Equity Shares — 18,747 shares (Direct)

Footnotes (2)

1. F1. The Subordinate Voting Shares, Restricted Voting Shares, and/or Limited Voting Shares of Glass House Brands Inc. ("GHBI") (collectively, the "Equity Shares").
2. F2. Represents the Equity Shares sold at a weighted average sale price of $10.08 per share. The Equity Shares were sold in multiple transactions at prices ranging from $9.88 to $10.20. The reporting person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of Equity Shares sold at each separate price.

Key Figures

Shares sold: 15,888 shares Weighted average sale price: $10.08/share Post-transaction holdings: 18,747 shares +2 more

5 metrics

Shares sold 15,888 shares Open-market sale on May 19, 2026

Weighted average sale price $10.08/share Equity Shares sale on May 19, 2026

Post-transaction holdings 18,747 shares Shares directly held after sale

Sale price range $9.88–$10.20/share Range of individual trade prices

Net share change -15,888 shares Net buy/sell direction from transaction summary

Key Terms

Equity Shares, weighted average sale price, open-market sale, transaction code S

4 terms

Equity Shares financial

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

Equity shares are units of ownership in a company that give the holder a claim on a portion of its assets and profits, like owning a slice of a business. They matter to investors because their value can rise or fall with the company’s performance and market sentiment, may provide periodic income through dividends, and often carry voting rights that influence how the business is run.

weighted average sale price financial

"Represents the Equity Shares sold at a weighted average sale price of $10.08 per share."

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

transaction code S regulatory

"transaction_code": "S", "transaction_code_description": "Sale in open market or private transaction""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Glass House Brands (GHBWF) report for William Tu?

Glass House Brands reported that SVP and corporate controller William Tu sold 15,888 Equity Shares in an open-market transaction. This sale was disclosed in a Form 4 insider filing and reflects a direct disposition of company equity by a senior finance executive.

At what price did William Tu sell Glass House Brands (GHBWF) shares?

William Tu sold Glass House Brands Equity Shares at a weighted average price of $10.08 per share. The Form 4 notes that individual trades occurred in a price range from $9.88 to $10.20, and detailed trade data is available upon request.

How many Glass House Brands (GHBWF) shares does William Tu hold after the sale?

Following the reported transaction, William Tu directly holds 18,747 Equity Shares of Glass House Brands Inc. This figure comes from the Form 4 filing’s post-transaction ownership column, showing his remaining direct equity stake after the open-market sale.

What type of security did William Tu sell in Glass House Brands (GHBWF)?

The Form 4 states that William Tu sold Equity Shares, a term covering Glass House Brands’ Subordinate Voting Shares, Restricted Voting Shares, and Limited Voting Shares collectively. All these classes are treated together under the filing’s definition of Equity Shares.

Was the Glass House Brands (GHBWF) insider transaction a buy or a sell?

The insider transaction was a sale. Form 4 data lists transaction code S and describes it as an open-market sale of 15,888 Equity Shares, resulting in a net reduction in William Tu’s directly held Glass House Brands equity position.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/20/2026 - 05:29 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Tu William

(Last) (First) (Middle)

3645 LONG BEACH BLVD

(Street)

LONG BEACH CALIFORNIA 90807

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol
[GLAS.AU]

3. Date of Earliest Transaction (Month/Day/Year)
05/19/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Equity Shares(1)	05/19/2026		S		15,888	D	$10.08(2)	18,747	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

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. Represents the Equity Shares sold at a weighted average sale price of $10.08 per share. The Equity Shares were sold in multiple transactions at prices ranging from $9.88 to $10.20. The reporting person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of Equity Shares sold at each separate price.

	/s/ Benjamin Vega, Attorney-in-Fact for William Tu	05/20/2026
	** 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 4 (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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)