X0508 4 2026-02-24 false 0001811414 QuantumScape Corp QS 0001177264 MCCARTHY MICHAEL O III C/O QUANTUMSCAPE CORPORATION 1730 TECHNOLOGY DRIVE SAN JOSE CA 95110 false true false false CHIEF LEGAL OFFICER false Class A Common Stock 2026-02-24 4 A false 42025.00 0.00 A 1047612.00 D Class A Common Stock 2026-02-25 4 F false 18393.00 7.0488 D 1029219.00 D Class A Common Stock 137888.00 I By: Trust The Issuer granted restricted stock units ("RSUs") to all eligible employees, including the Reporting Person, as a final bonus payout under the Issuer's 2025 Annual Bonus Plan. Each RSU represents the Reporting Person's right to receive one share of Class A Common Stock of the Issuer. 100% of the RSUs vest on the award grant date. Represents a sale to cover tax obligations on the RSUs. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.98 to $7.16, 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 862,821 shares represented by RSUs and performance restricted stock units ("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 2026-02-25