# EDGAR Filing Document

**Accession Number:** 0002120766
**File Stem:** 0001104659-26-030878
**Filing Date:** 2026-3
**Character Count:** 14947
**Document Hash:** 9e91373a58b33457a72dac640fc6f206
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-030878.hdr.sgml**: 20260415

**ACCESSION NUMBER**: 0001104659-26-030878

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260318

**FILED AS OF DATE**: 20260318

**DATE AS OF CHANGE**: 20260318

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Tu William
- **CENTRAL INDEX KEY:** 0002120766

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-56261
- **FILM NUMBER:** 26768909

**MAIL ADDRESS:**
- **STREET 1:** 3645 LONG BEACH BLVD
- **CITY:** LONG BEACH
- **STATE:** CA
- **ZIP:** 90807
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Glass House Brands Inc.
- **CENTRAL INDEX KEY:** 0001848731
- **STANDARD INDUSTRIAL CLASSIFICATION:** MEDICINAL CHEMICALS & BOTANICAL PRODUCTS [2833]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 000000000
- **STATE OF INCORPORATION:** A1
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 3645 LONG BEACH BLVD
- **CITY:** LONG BEACH
- **STATE:** CA
- **ZIP:** 90807
- **BUSINESS PHONE:** 562-264-5078

**MAIL ADDRESS:**
- **STREET 1:** 3645 LONG BEACH BLVD
- **CITY:** LONG BEACH
- **STATE:** CA
- **ZIP:** 90807

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Mercer Park Brand Acquisition Corp.
- **DATE OF NAME CHANGE:** 20210302

## Ex-24

**Exhibit 24**

**Power of Attorney**

The undersigned hereby makes, constitutes and appoints each of Benjamin Vega, General Counsel and Mark Vendetti, Chief Financial Officer, as employees of Glass House Brands Inc. (the Company") or any one of them acting singly, and with full power of substitution, re-substitution and delegation, the undersigned's true and lawful attorney in fact (each of such persons and their substitutes and delegees being referred to herein as the "Attorney-in-Fact"), with full power to act for the undersigned and in the undersigned's name, place and stead, to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. Take
 such actions as may be necessary or appropriate to enable the undersigned to submit and file
 forms, schedules and other documents with the U.S. Securities and Exchange Commission ("SEC")
 utilizing the SEC's Electronic Data Gathering and Retrieval ("EDGAR") system,
 which actions may include (a) enrolling the undersigned in EDGAR Next and (b) preparing,
 executing and submitting to the SEC a Form ID, amendments thereto, and such other documents
 and information as may be necessary or appropriate to obtain codes and passwords enabling
 the undersigned to make filings and submissions utilizing the EDGAR system;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Prepare
 and execute, for and on behalf of the undersigned in the undersigned's capacity as
 an officer, director, stockholder and/or affiliate of the Company, any and all forms, schedules
 and other documents (including any amendments thereto) the undersigned is required to file
 with the SEC, or which the Attorney-in-Fact considers it advisable for the undersigned to
 file with the SEC, under Section 13 or Section 16 of the Securities Exchange Act of 1934
 or any rule or regulation thereunder, or under Rule 144 under the Securities Act of 1933
 ("Rule 144"), including Forms 3, 4, and 5, Schedules 13D and 13G, and Forms 144
 (all such forms, schedules and other documents being referred to herein as "SEC Filings");

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Submit
 and file SEC Filings with the SEC utilizing the EDGAR system or cause them to be submitted
 and filed by a person appointed under <u>Section 5</u> below;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. File,
 submit or otherwise deliver SEC Filings to any securities exchange on which the Company's
 securities may be listed or traded;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. Act
 as a delegated administrator for the undersigned's EDGAR account, including: (i) appoint,
 remove and replace delegated account administrators and users; (ii) maintain the security
 of the undersigned's EDGAR account; and (iii) any other actions contemplated by Rule
 10 of Regulation S-T with respect to delegated entities;

 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6. Cause
 the Company to accept a delegation of authority from any of the undersigned's EDGAR
 account administrators and, pursuant to that delegation, authorize the Company's EDGAR
 account administrators to appoint, remove or replace users for the undersigned's EDGAR
 account; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7. Obtain,
 as the undersigned's representative and on the undersigned's behalf, information
 regarding transactions in the Company's equity securities from any third party, including
 the Company and any brokers, dealers, employee benefit plan administrators and trustees,
 and the undersigned hereby authorizes any such third party to release any such information
 to the Attorney-in-Fact.

The undersigned acknowledges that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) This
 Power of Attorney authorizes, but does not require, the Attorney-in-Fact to act in his or
 her discretion on information provided to such Attorney-in-Fact without independent verification
 of such information;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Any
 documents prepared or executed by the Attorney-in-Fact on behalf of the undersigned pursuant
 to this Power of Attorney will be in such form and will contain such information as the Attorney-in-Fact,
 in his or her discretion, deems necessary or desirable;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) Neither
 the Company nor the Attorney-in-Fact assumes any liability for the undersigned's responsibility
 to comply with the requirements of Section 13 or Section 16 of the Exchange Act or Rule 144,
 any liability of the undersigned for any failure to comply with such requirements, or any
 liability of the undersigned for disgorgement of profits under Section 16(b) of the Exchange
 Act; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) This
 Power of Attorney does not relieve the undersigned from responsibility for compliance with
 the undersigned's obligations under Section 13 or Section 16 of the Exchange Act, including,
 without limitation, the reporting requirements under Section 13 or Section 16 of the Exchange
 Act.

The undersigned hereby grants to the Attorney-in-Fact full power and authority to do and perform each and every act and thing requisite, necessary or advisable to be done in connection with the foregoing, as fully, to all intents and purposes, as the undersigned might or could do in person, hereby ratifying and confirming all that the Attorney-in-Fact, or his or her substitute or substitutes, shall lawfully do or cause to be done by authority of this Power of Attorney.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 4 or 5 or Schedules 13D or 13G or Forms 144 with respect to the undersigned's holdings of and transactions in securities of the Company, unless earlier revoked by the undersigned in a signed writing delivered to the Attorney-in-Fact. This Power of Attorney revokes all previous powers of attorney with respect to the subject matter of this Power of Attorney.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney as of March ____, 2026.

---

| |
|:---|
| /s/ William Tu |
| Signature |
| William Tu |
| Print Name |

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**Notarization**

State of

County of

This Power of Attorney was acknowledged before me on [DATE] ______________________ by [NAME] ______________.

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| |
|:---|
| Notary Signature |
| [Notary Seal] |

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| | |
|:---|:---|
| **CALIFORNIA ACKNOWLEDGMENT** | **CIVIL CODE § 1189** |

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A notary public or other officer completing this certificate verifies only the identity of the individual who signed the document to which this certificate is attached, and not the truthfulness, accuracy, or validity of that document.

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| | | |
|:---|:---|:---|
| State of California | State of California | } |
|  |  | } |
| County of | Santa Barbara | } |

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On <u>March 12, 2026</u> before me, <u>Jannete Martinez, Notary Public,</u> <br> *Date* *Here Insert Name and Title of the Officer*

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| | |
|:---|:---|
| personally appeared | William Tu |
|  | *Name(s) of Signer(s)* |
| | , |

---

who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are subscribed to the within instrument and acknowledged to me that he/she/they executed the same in his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the person(s), or the entity upon behalf of which the person(s) acted, executed the instrument.

---

| | | | |
|:---|:---|:---|:---|
| [Seal] | JANNETE MARTINEZ<br> Notary Public - California<br> Santa Barbara County<br> Commission # 2433144<br> My Comm. Expires Jan 2, 2027 | I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct.<br>WITNESS my hand and official seal. | I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct.<br>WITNESS my hand and official seal. |
|  |  | Signature | /s/ Jannete Martinez |
| *Place Notary Seal and/or Stamp Above* | *Place Notary Seal and/or Stamp Above* |  | *Signature of Notary Public* |

---

**OPTIONAL**

*Completing this information can deter alteration of the document or <br> fraudulent reattachment of this form to an unintended document.*

**Description of Attached Document**

Title or Type of Document: <u>Power of Attorney</u>

Document Date: <u>March 12, 2026</u> Number of Pages: <u>3</u>

Signer(s) Other Than Named Above:  

**Capacity(ies) Claimed by Signer(s)**

---

| | | | |
|:---|:---|:---|:---|
| Signer's Name: | | Signer's Name: | |
| ◻ Corporate Officer — Title(s): | | ◻ Corporate Officer — Title(s): | |
| ◻ Partner — ◻ Limited | ◻ General | ◻ Partner — ◻ Limited | ◻ General |
| ◻ Individual | ◻ Attorney in Fact | ◻ Individual | ◻ Attorney in Fact |
| ◻ Trustee | ◻ Guardian or Conservator | ◻ Trustee | ◻ Guardian or Conservator |
| ◻ Other: | | ◻ Other: | |
| Signer is Representing: | | Signer is Representing: | |

---

©2019 National Notary Association

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Tu William<br><sub>(Last) (First) (Middle)</sub><br>3645 LONG BEACH BLVD<br><sub>(Street)</sub><br>LONG BEACH,  90807<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Glass House Brands Inc. [ GLASF ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-03-18 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_SVP, Corporate Controller_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Equity Shares<sup>(1)</sup> | 26302 | D |  |

---

## Table II - Derivative Securities Beneficially Owned

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|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Restricted Stock Unit | <sup>(2)</sup> | <sup>(2)</sup> | Equity Shares<sup>(1)</sup> | 159204<sup>(2)</sup> | <sup>(3)</sup> | D |  |

---

### Footnotes:

(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

**Signature:** /s/ Benjamin Vega, Attorney-in-Fact for William Tu  
**Date:** 2026-03-18

### Remarks:

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.**