X0609 4 2026-09-01 0 0002084026 QumulusAI, Inc. QMLS 0002110097 DiRocco Ryan Anthony false 33 SOUTH 6TH STREET SUITE 3600 MINNEAPOLIS MN 55402 0 1 0 0 Chief Technology Officer 0 Common Stock 2026-09-01 4 A 0 85179 0 A 131212 D Common Stock 2026-09-01 4 A 0 94313 0 A 225525 D Common Stock 2026-09-01 4 A 0 9737 0 A 235262 D Common Stock 33334 I By RAD Corporate Holdings Inc. These shares vest with respect to 21,295 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 23,578 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 4,869 shares on February 24, 2027, with respect to 2,434 shares on May 24, 2027, and with respect to 2,434 shares on August 24, 2027. Includes 167,934 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/ Ryan Anthony DiRocco 2026-09-02