Michael O McCarthy III - 18 May 2026 Form 4 Insider Report for QuantumScape Corp (QS)

Reporting relationship: CHIEF LEGAL OFFICER
Issuer ticker: QS
Reported as of: 18 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 May 2026, 19:34:20 UTC
Prior SEC filing: 16 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael O. McCarthy, III

Key filing fact

Michael O McCarthy III filed Form 4 for QuantumScape Corp (QS) on 20 May 2026.

Key facts

This page summarizes Michael O McCarthy III's Form 4 filing for QuantumScape Corp (QS).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 20 May 2026, 19:34.

Change

Previous filing in this sequence was filed on 16 Apr 2026.
Current net transaction value: $0.

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 0001177264 Primary reporting owner

MCCARTHY MICHAEL O III

Relationship: CHIEF LEGAL OFFICER
Address: C/O QUANTUMSCAPE CORPORATION, 1730 TECHNOLOGY DRIVE, SAN JOSE
Signature: /s/ Michael O. McCarthy, III
Signature date: 20 May 2026

Reported non-derivative transactions

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

QS transaction

Class A Common Stock

Tax liability

Transaction value
Shares: -24,211
Change %: -1.5%
Price: $7.37^*
Shares after: 1,553,152
Date: 18 May 2026
Ownership: Direct
Footnotes: F1, F2, F3

QS holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 137,888
Date: 18 May 2026
Ownership: By: Trust
Footnotes: F4

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Represents a sale to cover tax obligations on the release of restricted stock units ("RSUs").

Footnote F2

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.21 to $8.01, 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 1,435,162 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.

Footnote F4

The Reporting Person is the grantor of the trust.