X0609 4 2026-04-14 false 0001811414 QuantumScape Corp QS 0001177264 MCCARTHY MICHAEL O III false C/O QUANTUMSCAPE CORPORATION 1730 TECHNOLOGY DRIVE SAN JOSE CA 95110 false true false false CHIEF LEGAL OFFICER false Class A Common Stock 2026-04-14 4 A false 519287.00 0.00 A 1473506.00 D Class A Common Stock 2026-04-14 4 A false 103857.00 0.00 A 1577363.00 D Class A Common Stock 137888.00 I By: Trust The Issuer granted restricted stock units ("RSUs") (40%) and performance restricted stock units ("PSUs") (60%) to the Reporting Person. Each RSU and PSU represents the Reporting Person's right to receive one share of Class A Common Stock of the Issuer. The RSUs vest each quarter and the PSUs vest upon achievement of certain performance milestones, in both cases subject to the Reporting Person's continued service as of each vesting date. The Issuer granted RSUs to the Reporting Person. Each RSU represents the Reporting Person's right to receive one share of Class A Common Stock of the Issuer. The RSUs are eligible to vest based on the Issuer's total shareholder return ("TSR") relative to certain indexed companies during a performance period beginning on January 1, 2026 and ending on December 31, 2028, subject to the Reporting Person's continued service as of each vesting date. Includes 1,485,965 shares represented by RSUs and PSUs. Each RSU/PSU represents the Reporting Person's right to receive one share of Class A Common Stock of the Issuer. The RSUs vest each quarter and the PSUs vest upon achievement of certain performance milestones, in both cases subject to the Reporting Person's continued service as of each vesting date. The Reporting Person is the grantor of the trust. /s/ Michael O. McCarthy, III 2026-04-16