Sec Form 4 Filing - Xu Xiaochun @ ThermoGenesis Holdings, Inc. - 2020-02-13

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Xu Xiaochun 2. Issuer Name and Ticker or Trading Symbol ThermoGenesis Holdings, Inc. [ THMO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) CEO (Last) (First) (Middle) 2711 CITRUS ROAD, 3. Date of Earliest Transaction (MM/DD/YY) 02/13/2020 (Street) RANCHO CORDOVA, CA95742 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/13/2020 C( 1 ) 1,666,670 A $ 1.8 2,350,494 I Held by Boyalife Asset Holding II, Inc.

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Second Amended and Restated Convertible Note $ 1.8 02/13/2020 C( 1 ) 04/16/2018 03/06/2022 Common Stock 1,666,670 $ 0 ( 1 ) 0 ( 1 ) I Held by Boyalife Asset Holding II, Inc.

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Xu Xiaochun 2711 CITRUS ROAD RANCHO CORDOVA, CA95742 X X CEO Boyalife Group, Inc. 2453 S. ARCHER AVE. SUITE B CHICAGO, IL60616 X Boyalife Asset Holding II, Inc. 2453 S. ARCHER AVE. SUITE B CHICAGO, IL60616 X Signatures /s/ Xiaochun Xu 02/18/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On February 13, 2020, Boyalife Asset Holding II, Inc. converted an aggregate of $3,000,000 of outstanding principal and interest under a Second Amended and Restated Convertible Promissory Note issued by Issuer in April 2018. As of the date of this Form 4, there was $7,582,000 in principal and approximately $300,000 in accrued interest outstanding under the Note, all of which is convertible at a conversion price of $1.80 per share. Boyalife Asset Holding II, Inc. is 100% owned by Boyalife Group, Inc., which is 100% owned by Dr. Xiaochun Xu.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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