Sec Form 4 Filing - Kenna Justin @ GameSquare Holdings, Inc. - 2025-07-11

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Kenna Justin 2. Issuer Name and Ticker or Trading Symbol GameSquare Holdings, Inc. [ GAME] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CEO and Director (Last) (First) (Middle) C/O GAMESQUARE HOLDINGS, INC., 6775 COWBOYS WAY, STE. 1335 3. Date of Earliest Transaction (MM/DD/YY) 07/11/2025 (Street) FRISCO, TX75034 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Options to Purchase Common Stock ( 1 ) $ 1.8 07/11/2025 A 1,045,712 ( 3 ) 07/11/2030 Common Stock 1,045,712 $ 0 ( 1 ) 1,218,333 D Restricted Stock Units ( 1 ) ( 2 ) 07/11/2025 A 464,863 ( 3 ) ( 3 ) Common Stock 464,863 $ 0 ( 1 ) 464,863 D Options to Purchase Common Stock ( 1 ) $ 1.8 07/11/2025 A 150,000 ( 4 ) 07/11/2030 Common Stock 150,000 $ 0 ( 1 ) 1,368,333 D Restricted Stock Units ( 1 ) ( 2 ) 07/11/2025 A 225,000 ( 4 ) ( 4 ) Common Stock 225,000 $ 0 ( 1 ) 689,863 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Kenna Justin C/O GAMESQUARE HOLDINGS, INC. 6775 COWBOYS WAY, STE. 1335 FRISCO, TX75034 X CEO and Director Signatures /s/ Justin Kenna 07/15/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The grant was made pursuant to the Issuer's Amended and Restated Omnibus Equity Incentive Plan ("Omnibus Plan"). ( 2 )Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. ( 3 )On July 11, 2025 (the "Grant Date"), the Reporting Person was granted (i) options to purchase an aggregate of 1,045,712 shares of the Issuer's common stock and (ii) 464,863 restricted stock units ("RSUs"), each representing a contingent right to receive one share of the Issuer's common stock. The grants were made as part of the Issuer's long-term incentive program and vest as follows: 25% on the Grant Date, 37.5% on the first anniversary of the Grant Date, and 37.5% on the second anniversary of the Grant Date. ( 4 )Reflects the one-time grant on July 11, 2025 of stock options to purchase an aggregate of 150,000 shares of the Issuer's common stock, and 225,000 restricted stock units, which will convert into one share of Issuer's common stock, pursuant to the Reporting Person's Employment Agreement, and which vest immediately.

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).

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