X0306 4/A 2019-12-20 2020-01-03 0000811212 ThermoGenesis Holdings, Inc. THMO 0001669192 Xu Xiaochun 2711 CITRUS ROAD RANCHO CORDOVA CA 95742 1 1 1 CEO 0001669923 Li Yishu 2711 CITRUS ROAD RANCHO CORDOVA CA 95742 1 0001738401 Boyalife Group, Inc. 2453 S. ARCHER AVE. SUITE B CHICAGO IL 60616 1 0001738415 Boyalife Asset Holding II, Inc. 2453 S. ARCHER AVE. SUITE B CHICAGO IL 60616 1 0001667753 Boyalife (Hong Kong) Ltd 2453 S. ARCHER AVE STE. B CHICAGO IL 60616 1 Common Stock 2019-12-26 4 S 0 683824 2277134 D 0 I By Boyalife (Hong Kong) Ltd. Common Stock 2019-12-26 4 P 0 683824 2277134 A 683824 I By Boyalife Asset Holding II, Inc. Warrants to Purchase Common Stock 80 2019-12-26 4 S 0 352942 10 D 2016-12-26 2021-02-13 Common Stock 352942 0 I By Boyalife (Hong Kong) Ltd. Warrants to Purchase Common Stock 80 2019-12-26 4 P 0 352942 10 A 2016-12-26 2021-02-13 Common Stock 352942 352942 I By Boyalife Asset Holding II, Inc. Participation Interest in Convertible Note 1.80 2019-12-20 4 J 0 1080000 2000000 D 2019-12-20 2022-03-06 Common Stock 600000 9445000 I By Boyalife Asset Holding II, Inc. On December 26, 2019, Boyalife (Hong Kong) Ltd. ("Boyalife HK") sold to Boyalife Asset Holding II, Inc. ("Boyalife AH") an aggregate of 683,824 shares of the Issuer's common stock for an aggregate purchase price of $2,227,134 (or $3.33 per share) and warrants to purchase 352,942 shares of issuer common stock for an aggregate purchase price of $10.00. Boyalife AH is 100% owned by Boyalife Group, Inc., which is 100% owned by Mr. Xiaochun Xu, and Boyalife HK is owned 100% by Ms. Yishu Li, the spouse of Mr. Xiaochun Xu. Accordingly, the transaction resulted in a change in the form of beneficial ownership of the shares and did not result in a change in Mr. Xu's and Ms. Li's pecuniary interest in the shares. On December 20, 2019, Boyalife AH sold to a third party in a private transaction a participation interest in the Second Amended and Restated Convertible Promissory Note, dated April 16, 2018, issued by the Issuer and held by Boyalife AH (the "Convertible Note"). Boyalife AH sold to the third party a participation interest in the Convertible Note equal to $1,080,000 in face value of the Convertible Note plus interest accruing thereon after December 20, 2019. The Convertible Note and interest thereon is convertible into shares of Issuer common stock at a conversion price of $1.80 (subject to adjustment), with the participation interest representing a right to receive 600,000 conversion shares as of December 20, 2019, plus an additional share for each $1.80 of interest accrued thereafter, subject to a conversion blocker of 4.99%. Represents the amount of principal and interest remaining under the Convertible Note as of the date of this Form 4 that is not subject to the participation interest described in preceding Note 2. This amendment to Form 4 is being filed to revise certain transaction codes in the originally filed Form 4 and to revise footnote 2 therein to provide additional detail. All share numbers, warrant numbers, exercise prices, and conversion prices on this Form 4 reflect the Issuer's one-for-ten reserve stock split of its common stock that occurred on June 4, 2019. /s/ Xiaochun Xu 2020-04-30