Brad W. Buss - 31 Oct 2025 Form 4 Insider Report for QuantumScape Corp (QS)

Reporting relationship: Director
Issuer ticker: QS
Reported as of: 31 Oct 2025
Net transaction value: -$3,522,500
SEC form: 4
Accepted by SEC: 31 Oct 2025, 18:57:15 UTC
Prior SEC filing: 28 Oct 2025
Next SEC filing: 05 Mar 2026
Source filing: View source filing
Reporting owner signature: /s /Michael O McCarthy III, attorney-in-fact

Key filing fact

Brad W. Buss filed Form 4 for QuantumScape Corp (QS) on 31 Oct 2025.

Key facts

This page summarizes Brad W. Buss's Form 4 filing for QuantumScape Corp (QS).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 31 Oct 2025, 18:57.

Change

Previous filing in this sequence was filed on 28 Oct 2025.
Current net transaction value: -$3,522,500.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001336664 Primary reporting owner

Buss Brad W

Relationship: Director
Address: C/O QUANTUMSCAPE CORPORATION, 1730 TECHNOLOGY DRIVE, SAN JOSE
Signature: /s /Michael O McCarthy III, attorney-in-fact
Signature date: 31 Oct 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

QS transaction

Class A Common Stock

Options Exercise

Transaction value: $1,870,080
Shares: +300,000
Change %: +245%
Price: $6.23
Shares after: 422,476
Date: 31 Oct 2025
Ownership: Direct

QS transaction

Class A Common Stock

Sale

Transaction value: $2,170,812
Shares: -125,000
Change %: -30%
Price: $17.37
Shares after: 297,476
Date: 31 Oct 2025
Ownership: Direct
Footnotes: F1

QS transaction

Class A Common Stock

Sale

Transaction value: $3,221,768
Shares: -175,000
Change %: -59%
Price: $18.41
Shares after: 122,476
Date: 31 Oct 2025
Ownership: Direct
Footnotes: F2, F3

QS holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 249,720
Date: 31 Oct 2025
Ownership: By 2011 Buss Family Trust

QS holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 70,000
Date: 31 Oct 2025
Ownership: By: Buss Family Heritage Trust dated December 24, 2020, Bradley Buss and Deborah Buss as Trustees

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

QS transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value: $0
Shares: -300,000
Change %: -30%
Price: $0.000000
Shares after: 707,612
Date: 31 Oct 2025
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 300,000
Exercise price: $6.23

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

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.

Footnote F2

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.

Footnote F3

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.