QuantumScape (QS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-18 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: QuantumScape Corp (QS) CIK: 0001811414 --- Reporting Owner --- Name: MCCARTHY MICHAEL O III CIK: 0001177264 Role: Officer (CHIEF LEGAL OFFICER) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-08-18 | Code: F (Payment of exercise/tax) Shares: -25,709 | Price: $5.74 Total Value: $147,685.35 Shares Owned After: 1,527,774 | Ownership: D (Direct) Footnotes: [F1] Represents a sale to cover tax obligations on the release of restricted stock units ("RSUs"). [F2] The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.66 to $5.93, 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. [F3] Includes 331 shares acquired under the Issuer's Employee Stock Purchase Plan on June 1, 2026. [F4] Includes 1,380,083 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. --- Holdings --- [Holding #1] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F5] The Reporting Person is the grantor of the trust. --- Footnotes (Complete Index) --- F1: Represents a sale to cover tax obligations on the release of restricted stock units ("RSUs"). F2: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.66 to $5.93, 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. F3: Includes 331 shares acquired under the Issuer's Employee Stock Purchase Plan on June 1, 2026. F4: Includes 1,380,083 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. F5: The Reporting Person is the grantor of the trust. --- Signature --- /s/ /s/ Michael O. McCarthy, III (2026-08-20)