Sec Form 3 Filing - Thoma Bravo Advantage Sponsor, LLC @ Thoma Bravo Advantage - 2021-01-13

FORM 3 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 Thoma Bravo Advantage Sponsor, LLC 2. Issuer Name and Ticker or Trading Symbol Thoma Bravo Advantage [ TBA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 150 N. RIVERSIDE PLAZA, SUITE 2800 3. Date of Earliest Transaction (MM/DD/YY) 01/13/2021 (Street) CHICAGO, IL60606 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 Class A ordinary shares 2,200,000 ( 1 ) ( 2 ) D

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 Class B ordinary shares ( 3 ) ( 3 ) ( 3 ) Class A ordinary shares 24,475,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Thoma Bravo Advantage Sponsor, LLC 150 N. RIVERSIDE PLAZA SUITE 2800 CHICAGO, IL60606 X Signatures /s/ Steven Schwab, attorney-in-fact 01/14/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Class A ordinary shares purchased by the reporting person in a private placement concurrently with the issuer's initial public offering. ( 2 )The reporting person is governed by a board of managers consisting of six individuals. None of the members of the board of managers exercise voting or dispositive power with respect to the Class B ordinary shares or private placements shares alone or are deemed to have beneficial ownership of such shares. ( 3 )As described in the issuer's registration statement on Form S-1 (File No. 333-251772) under the heading "Description of Securities--Founder Shares," the Class B ordinary shares, par value $0.0001 per share, of the issuer will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination on a one-for-one basis, subject to certain adjustments, and have no expiration date. Includes 2,500,000 Class B ordinary shares that are subject to forfeiture if the underwriter of the issuer's initial public offering does not exercise in full its option to purchase additional Class A ordinary shares.

Remarks: Exhibit 24.1 - Power of Attorney

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).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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