X0306 4 2022-03-02 0 0000087802 SCIENTIFIC INDUSTRIES INC SCND 0001781002 Bleichroeder LP 1345 AVENUE OF THE AMERICAS 47TH FLOOR NEW YORK NY 10105 0 0 1 0 Common Stock 2022-03-02 4 P 0 45456 5.5 A 603351 I See footnote Warrants 5.5 2022-03-02 4 P 0 22728 5.5 A 2022-03-02 2027-03-02 Common Stock 22728 301675 I See footnote This form is filed by Bleichroeder LP. Bleichroeder LP serves as registered investment adviser to 21 April Fund, Ltd., 21 April Fund, LP and other managed accounts. Bleichroeder LP disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that Bleichroeder LP is the beneficial owner of the securities for purposes of Section 16 or for any other purposes. On March 2, 2022, 21 April Fund, Ltd., 21 April Fund, LP and SCIENTIFIC INDUSTRIES, INC. (the "Issuer") entered into an agreement (the "Purchase Agreement") under which 21 April Fund, Ltd. and 21 April Fund, LP purchased from the Issuer warrants (the Warrants) to purchase up to 22,728 additional shares of common stock, at a per share exercise price of $5.50. The Warrants are exercisable in whole or in part at any time prior to the fifth anniversary of the issuance date. Michael M. Kellen, Chairman and CO-CEO of Bleichroeder LP 2022-03-03