X0508 4 2025-10-31 false 0001811414 QuantumScape Corp QS 0001336664 Buss Brad W C/O QUANTUMSCAPE CORPORATION 1730 TECHNOLOGY DRIVE SAN JOSE CA 95110 true false false false false Class A Common Stock 2025-10-31 4 M false 300000.00 6.2336 A 422476.00 D Class A Common Stock 2025-10-31 4 S false 125000.00 17.3665 D 297476.00 D Class A Common Stock 2025-10-31 4 S false 175000.00 18.4101 D 122476.00 D Class A Common Stock 249720.00 I By 2011 Buss Family Trust Class A Common Stock 70000.00 I By: Buss Family Heritage Trust dated December 24, 2020, Bradley Buss and Deborah Buss as Trustees Stock Option (Right to Buy) 6.2336 2025-10-31 4 M false 300000.00 0.00 D 2021-08-02 2030-09-02 Class A Common Stock 300000.00 707612.00 D The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.26 to $17.44, 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 ranges set forth in this footnote to this Form 4. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.40 to $18.475, 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 ranges set forth in this footnote to this Form 4. Includes 48,192 shares represented by restricted stock units ("RSUs"). Each RSU represents the Reporting Person's right to receive one share of Class A Common Stock of the Issuer per the applicable vesting schedule, subject to the Reporting Person's continued service as of each vesting date. /s /Michael O McCarthy III, attorney-in-fact 2025-10-31