Sec Form 4 Filing - Bal Kanwardev Raja Singh @ indie Semiconductor, Inc. - 2025-03-06

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 Bal Kanwardev Raja Singh 2. Issuer Name and Ticker or Trading Symbol indie Semiconductor, Inc. [ INDI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) SVP Chief Accounting Officer (Last) (First) (Middle) C/O INDIE SEMICONDUCTOR, INC., 32 JOURNEY 3. Date of Earliest Transaction (MM/DD/YY) 03/06/2025 (Street) ALISO VIEJO, CA92656 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 Common Stock 03/06/2025 M 6,250 ( 1 ) A $ 0 79,725 D Class A Common Stock 03/07/2025 S( 2 ) 2,812 D $ 2.9 76,913 D Class A Common Stock 03/09/2025 M 1,442 A $ 0 78,355 D Class A Common Stock 03/10/2025 S( 2 ) 661 D $ 2.85 77,694 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 R eported 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 Performance-based Restricted Stock Units ( 3 ) ( 4 ) 03/06/2025 A 12,500 ( 4 ) ( 4 ) Class A Common Stock 12,500 $ 0 12,500 D Performance-based Restricted Stock Units ( 1 ) ( 3 ) 03/06/2025 M 6,250 ( 4 ) ( 4 ) Class A Common Stock 6,250 $ 0 6,250 D Restricted Stock Units $ 0 ( 3 ) 03/09/2025 M 1,442 ( 5 ) ( 5 ) Class A Common Stock 1,442 $ 0 1,443 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Bal Kanwardev Raja Singh C/O INDIE SEMICONDUCTOR, INC. 32 JOURNEY ALISO VIEJO, CA92656 SVP Chief Accounting Officer Signatures /s/ Bal, Kanwardev Raja Singh by Naixi Wu pursuant to power of attorney filed on December 7, 2022 03/10/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Acquired upon achievement of certain predetermined performance criteria pursuant to a performance-based restricted stock units award (PSU Award) granted on January 3, 2023 (Award Date). TheCompensation Committee certified the achievement of the performance criteria on March 6, 2025. ( 2 )Represent shares of Class A common stock sold in the open market to pay for withholding taxes in connection with the vesting of restricted stock units. ( 3 )Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A common stock. ( 4 )Represents shares of Class A common stock underlying the PSU Award previously granted by the Issuer on Award Date, the vesting of which was subject to the Issuer's achievement of certain predeterminedperformance criteria. The Compensation Committee certified the achievement of the performance criteria on March 6, 2025. 50% of the number of shares of Class A common stock reportedherein vested on March 6, 2025, and the remaining 50% will vest on January 3, 2026. ( 5 )The time-based restricted stock units shall vest and become nonforfeitable with respect to twenty-five percent (25%) of the total number of restricted stock units on each of the first, second, third and fourth anniversaries of the grant date.

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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