X0508 4 2025-12-01 0001841925 indie Semiconductor, Inc. INDI 0002009989 Wittmann Michael C/O INDIE SEMICONDUCTOR, INC. 32 JOURNEY ALISO VIEJO CA 92656 false true false false Chief Operating Officer true Class A Common Stock 2025-12-01 4 M false 37500 0 A 131505 D Class A Common Stock 2025-12-02 4 S false 17716 3.7406 D 113789 D Class A Common Stock 2025-12-02 4 S false 19784 3.7406 D 94005 D Restricted Stock Units 2025-12-01 4 M false 37500 0 D Class A Common Stock 262500 187500 D 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. The sales made in this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 15, 2024, and modified on May 26, 2025. The Reporting Person's Rule 10b5-1 plan includes automated open market sales of the Issuer's Class A common stock on predetermined dates through March 31, 2027. The price reported in Column 4 is a weighted average price. The shares reported in this Form 4 were sold in separate transactions at prices ranging from $3.53 to $3.87, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 price range set forth in this footnote. Each restricted stock unit represents a contingent right to receive one share of Class A common stock. The time-based restricted stock units shall vest and become nonforfeitable over two years in quarterly equal installments starting on June 1, 2025 through March 1, 2027. /s/ Michael Wittmann, by Naixi Wu pursuant to power of attorney filed on January 22, 2024 2025-12-03