X0609 4 2026-09-01 0 0002084026 QumulusAI, Inc. QMLS 0002097248 Hunton Stephen Eric false C/O FOX ROTHSCHILD LLP 33 S. SIXTH STREET, SUITE 3600 MINNEAPOLIS MN 55402 0 1 0 0 Chief Marketing Officer 0 Common Stock 2026-09-01 4 A 0 63884 0 A 107310 D Common Stock 2026-09-01 4 A 0 94125 0 A 201435 D Common Stock 2026-09-01 4 A 0 5861 0 A 207296 D These shares vest with respect to 15,971 shares on September 1, 2026 and with respect to 6.25% of the remaining shares quarterly over 12 quarters commencing December 1, 2026 pursuant to a restricted stock unit award granted under the QumulusAI, Inc. 2026 Equity Incentive Plan, conditioned upon the Reporting Person remaining an employee of QumulusAI, Inc. through the applicable vesting date. These shares vest with respect to 23,531 shares on September 1, 2027 and with respect to 6.25% of the remaining shares quarterly over 12 quarters commencing December 1, 2027 pursuant to a restricted stock unit award granted under the QumulusAI, Inc. 2026 Equity Incentive Plan, conditioned upon the Reporting Person remaining an employee of QumulusAI, Inc. through the applicable vesting date. These shares vest with respect to 2,931 shares on February 24, 2027, with respect to 1,465 shares on May 24, 2027, and with respect to 1,465 shares on August 24, 2027. Includes 147,899 shares to be issued upon vesting pursuant to restricted stock unit awards granted under the QumulusAI, Inc. 2026 Equity Incentive Plan, conditioned upon the Reporting Person remaining an employee of QumulusAI through the applicable vesting dates. /s/ Stephen Eric Hunton 2026-09-02