Sec Form 4 Filing - LUM JONATHAN @ CREDIT ACCEPTANCE CORP - 2021-09-07

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 LUM JONATHAN 2. Issuer Name and Ticker or Trading Symbol CREDIT ACCEPTANCE CORP [ CACC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Operating Officer (Last) (First) (Middle) 25505 WEST TWELVE MILE ROAD 3. Date of Earliest Transaction (MM/DD/YY) 09/07/2021 (Street) SOUTHFIELD, MI48034-8334 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 Common Stock 09/07/2021 I 353 D $ 645.57 0 I By 401(k) Plan ( 1 ) Common Stock 11/03/2021 G V 250 D $ 0 12,205 ( 2 ) D Common Stock 11/03/2021 S 300 D $ 665.85 ( 3 ) 11,905 ( 2 ) D Common Stock 11/03/2021 S 542 D $ 667.74 ( 4 ) 11,363 ( 2 ) D Common Stock 11/03/2021 S 100 D $ 669.15 11,263 ( 2 ) D Common Stock 11/03/2021 S 100 D $ 670 11,163 ( 2 ) D Common Stock 11/03/2021 S 750 D $ 670.34 ( 5 ) 10,413 ( 2 ) D Common Stock 11/03/2021 S 412 D $ 673.42 ( 6 ) 10,001 ( 2 ) D Common Stock 11/03/2021 S 278 D $ 674.46 ( 7 ) 9,723 ( 2 ) D Common Stock 11/03/2021 S 100 D $ 675.28 9,623 ( 2 ) D Common Stock 11/03/2021 S 63 D $ 678.67 9,560 ( 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 Employee Stock Option (right to buy) $ 333.94 ( 8 ) 12/30/2026 Common Stock 40,000 40,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other LUM JONATHAN 25505 WEST TWELVE MILE ROAD SOUTHFIELD, MI48034-8334 Chief Operating Officer Signatures /s/ Jonathan L. Lum 11/05/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Shares were held in the Credit Acceptance Stock Fund of the Credit Acceptance Corporation 401(k) Profit Sharing Plan and Trust until September 7, 2021, according to the Plan trustee. ( 2 )Includes 4,195 vested restricted stock units that were granted under the Company's Incentive Compensation Plan. ( 3 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $665.62 to $666.17, inclusive. The reporting person undertakes to provide to Credit Acceptance Corporation, any security holder of Credit Acceptance Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the footnotes to this Form 4. ( 4 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $667.32 to $668.31, inclusive. The reporting person undertakes to provide to Credit Acceptance Corporation, any security holder of Credit Acceptance Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the footnotes to this Form 4. ( 5 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $670.08 to $671.01, inclusive. The reporting person undertakes to provide to Credit Acceptance Corporation, any security holder of Credit Acceptance Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the footnotes to this Form 4. ( 6 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $673.12 to $673.89, inclusive. The reporting person undertakes to provide to Credit Acceptance Corporation, any security holder of Credit Acceptance Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the footnotes to this Form 4. ( 7 )The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $674.22 to $675.00, inclusive. The reporting person undertakes to provide to Credit Acceptance Corporation, any security holder of Credit Acceptance Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the footnotes to this Form 4. ( 8 )The option, representing the right to purchase 40,000 shares, is exercisable in four equal annual installments beginning on December 30, 2021, which is the first anniversary of the date on which the option was granted.

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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