X0202 SCHEDULE 13G 0001896206 XXXXXXXX LIVE Common Stock, par value $0.0001 per share 05/05/2026 0001982444 Baird Medical Investment Holdings Ltd G0705H111 18/F, OVEST 77 WING LOK STREET SHEUNG WAN K3 999077 Rule 13d-1(c) Alta Partners LLC NY 1995604.00 0.00 1995604.00 0.00 1995604.00 5.1 OO Baird Medical Investment Holdings Ltd 18/F, OVEST, 77 WING LOK STREET, SHEUNG WAN, HONG KONG, 999077 Alta Partners LLC 1205 Franklin Avenue Garden City, New York 11530 New York Limited Liability Company Y 1,995,604 shares of common stock, representing common stock issuable upon exercise of outstanding warrants. 5.1% 1,995,604 of common stock O shares of common stock 1,995,604 of common stock O shares of common stock Y N 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 acquired and are held in the ordinary course of business and 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. 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. Alta Partners LLC /s/ Steven Cohen 05/08/2026