Form 4 Filing for Steven P. LaRosa

This Form 4 filing reports a grant of 42,000 restricted stock units (RSUs) to Steven P. LaRosa, Chief Medical Officer of AETH LON MEDICAL INC, on October 8, 2026. These RSUs are part of the Issuer's 2020 Equity Incentive Plan and vest over one year, subject to continued service. Vesting will accelerate upon the closing of the proposed merger with North Immunology, Inc. The RSUs represent a contingent right to receive one share of the Issuer's common stock upon settlement. The transaction code 'A' indicates acquisition, and the price per share is $0.00, reflecting a grant rather than a purchase. Post-transaction, LaRosa holds 42,057 shares.