X0202 SCHEDULE 13G 0002162155 XXXXXXXX LIVE Class A Common Stock, $0.0001 par value per share 08/27/2026 0002109869 Exascale Labs Holdings Inc. 30066G102 820 Gessner Road, Suite 332 Houston TX 77024 Rule 13d-1(c) Hack Seed Fund II LP b E9 0.00 2000000.00 0.00 2000000.00 2000000.00 5.9 PN Hack Seed Fund II GP LLC b E9 0.00 2000000.00 0.00 2000000.00 2000000.00 5.9 OO Alexander Pack b X1 0.00 2000000.00 0.00 2000000.00 2000000.00 5.9 IN Exascale Labs Holdings Inc. 820 Gessner Road, Suite 332, Houston, TX, 77024. The names of the persons filing this report (collectively, the "Reporting Persons") are: Hack Seed Fund II LP ("Hack Seed II") Hack Seed Fund II GP LLC ("Hack Seed II GP") Alexander Pack ("Pack") The Reporting Persons expressly disclaim status as a "group" for purposes of this Schedule 13G. 251 Lytton Ave, Suite 200 Palo Alto, CA 94301. Hack Seed II Cayman Islands Hack Seed II GP Cayman Islands Pack United States Y Row 9 of each Reporting Person's cover page to this Schedule 13G sets forth the aggregate number of shares of Class A common stock of the Issuer beneficially owned by such Reporting Person and is incorporated by reference. The Reporting Persons' ownership of the Issuer's securities consists of 2,000,000 shares of Class A common stock directly held by Hack Seed II. Hack Seed II GP is the general partner of Hack Seed II and Pack is sole manager of Hack Seed II GP. Each of Hack Seed II GP and Pack shares voting and investment authority over the securities held by Hack Seed II. Row 11 of each Reporting Person's cover page to this Schedule 13G sets forth the percentages of the shares of Class A common stock of the Issuer beneficially owned by such Reporting Person and is incorporated by reference. The percentage set forth in each row 11 is based upon 33,689,050 shares of Class A common stock outstanding as of September 25, 2026, as reported in the Issuer's Annual Report on Form 10-K filed with the Securities and Exchange Commission (the "SEC") on September 28, 2026. Row 5 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to vote or to direct the vote of securities of the Issuer beneficially owned by such Reporting Person and is incorporated by reference. Row 6 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to vote or to direct the vote of securities of the Issuer beneficially owned by such Reporting Person and is incorporated by reference. Row 7 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to dispose or to direct the disposition of securities of the Issuer beneficially owned by such Reporting Person and is incorporated by reference. Row 8 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to dispose or to direct the disposition of securities of the Issuer beneficially owned by such Reporting Person and is incorporated by reference. Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Exhibit 99.1 Joint Filing Agreement Hack Seed Fund II LP /s/ Daniel Bulaevsky 10/29/2026 Hack Seed Fund II GP LLC /s/ Daniel Bulaevsky 10/29/2026 Alexander Pack /s/ Alexander Pack 10/29/2026