X0508 4 2026-01-03 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 2026-01-03 4 M false 1443 0 A 95448 D Class A Common Stock 2026-01-03 4 M false 18750 0 A 114198 D Class A Common Stock 2026-01-03 4 M false 12500 0 A 126698 D Class A Common Stock 2026-01-05 4 S false 5216 3.6672 D 121482 D Class A Common Stock 2026-01-05 4 S false 8387 3.6683 D 113095 D Class A Common Stock 2026-01-05 4 S false 1710 3.6683 D 111385 D Restricted Stock Units 2026-01-03 4 M false 1443 0 D Class A Common Stock 1443 0 D Restricted Stock Units 2026-01-03 4 M false 18750 0 D Class A Common Stock 37500 18750 D Performance-based Restricted Stock Units 2026-01-03 4 M false 12500 0 D Class A Common Stock 12500 0 D Represents 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 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 were sold in separate transactions at prices ranging from $3.61 to $3.76, 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 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. 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). The Compensation Committee certified the achievement of the performance criteria on March 6, 2025. 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 predetermined performance 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 reported herein vested on March 6, 2025, and the remaining 50% vested on January 3, 2026. /s/ Michael Wittmann, by Naixi Wu pursuant to power of attorney filed on January 22, 2024 2026-01-06