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  4. [Form 4] Glass House Brands Inc. Insider Trading Activity

Glass House Brands (GHBWF) SVP sells 15,837 equity shares

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Glass House Brands SVP and Corporate Controller William Tu reported multiple disposals of Equity Shares. On May 22, he sold 10,414 Equity Shares in open-market trades at a weighted average price of $10.19 per share and had 2,910 shares withheld to cover tax liabilities at a weighted average price of $10.29. On May 26, he sold a further 5,423 Equity Shares at a weighted average price of $10.48 per share, leaving him with no directly held Equity Shares after these transactions.

Positive

  • None.

Negative

  • None.
Insider Tu William
Role SVP, Corporate Controller
Sold 15,837 shs ($163K)
Type Security Shares Price Value
Sale Equity Shares 5,423 $10.48 $57K
Tax Withholding Equity Shares 2,910 $10.29 $30K
Sale Equity Shares 10,414 $10.19 $106K
Holdings After Transaction: Equity Shares — 0 shares (Direct, null)
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 Equity Shares being withheld in order to pay tax liability. Represents the Equity Shares sold at a weighted average sale price of $10.29 per share. The Equity Shares were sold in multiple transactions at prices ranging from $10.25 to $10.33. 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. Represents the Equity Shares sold at a weighted average sale price of $10.19 per share. The Equity Shares were sold in multiple transactions at prices ranging from $10.14 to $10.22. 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.
Open-market sale (May 22) 10,414 shares at $10.19/share Equity Shares sold on May 22, 2026 (weighted average price)
Open-market sale (May 26) 5,423 shares at $10.48/share Equity Shares sold on May 26, 2026 (weighted average price)
Tax-withholding disposition 2,910 shares at $10.29/share Shares withheld to pay tax liability on May 22, 2026
Total open-market shares sold 15,837 shares Sum of May 22 and May 26 open-market sales
Direct holdings after transactions 0 shares Total shares following May 26, 2026 transaction
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.
open-market sale financial
"transaction_action: "open-market sale" for the May 22 and May 26 transactions."
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.
tax-withholding disposition financial
"transaction_action: "tax-withholding disposition" describing shares used to pay tax liability."
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
weighted average sale price financial
"Represents the Equity Shares sold at a weighted average sale price of $10.29 per share."
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
SVP, Corporate Controller
2a. Foreign Trading Symbol
[GLAS.AU]
3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Equity Shares(1)05/22/2026F2,910D$10.29(2)15,837D
Equity Shares(1)05/22/2026S10,414D$10.19(3)5,423D
Equity Shares(1)05/26/2026S5,423D$10.480D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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. The Equity Shares being withheld in order to pay tax liability. Represents the Equity Shares sold at a weighted average sale price of $10.29 per share. The Equity Shares were sold in multiple transactions at prices ranging from $10.25 to $10.33. 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.
3. Represents the Equity Shares sold at a weighted average sale price of $10.19 per share. The Equity Shares were sold in multiple transactions at prices ranging from $10.14 to $10.22. 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 Tu05/26/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR

FAQ

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

Glass House Brands SVP and Corporate Controller William Tu reported disposing of Equity Shares through open-market sales and tax withholding. Across May 22 and May 26 transactions, he sold 15,837 Equity Shares and had 2,910 additional shares withheld to satisfy tax liabilities.

How many Glass House Brands (GHBWF) shares did William Tu sell in the open market?

William Tu sold 15,837 Equity Shares in open-market transactions. He sold 10,414 shares on May 22 at a weighted average price of $10.19 and 5,423 shares on May 26 at a weighted average price of $10.48 per share.

What portion of William Tu’s Glass House Brands (GHBWF) shares were used for tax withholding?

A total of 2,910 Equity Shares were disposed of to cover tax liabilities. These shares were associated with a weighted average price of $10.29 per share and are classified as a tax-withholding disposition, not an open-market sale, in the Form 4 data.

What is William Tu’s Glass House Brands (GHBWF) direct shareholding after these transactions?

Following the May 26 transaction, William Tu’s directly held Equity Shares position is reported as zero. The Form 4 data show total shares following that final May 26 open-market sale as 0.0000, indicating no remaining direct ownership of Equity Shares.

On what dates did Glass House Brands (GHBWF) insider William Tu trade Equity Shares?

The reported transactions occurred on May 22 and May 26, 2026. On May 22, Tu executed an open-market sale and a tax-withholding disposition. On May 26, he executed an additional open-market sale that reduced his directly held Equity Shares to zero.