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QuantumScape (QS) 10K Form and Latest SEC Filings 2026

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Latest QuantumScape SEC Filings & Recent Activity

QuantumScape (NYSE:QS) has submitted 679+ documents to the U.S. Securities and Exchange Commission (SEC) since 2020. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. Key figures from these filings, including revenue, earnings, and cash flow, are summarized in QuantumScape's financial statements. The most recent filing was a Form 4 submitted on May 14, 2026.

Form 4
QuantumScape Corp Reports Ownership Change on May. 14, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

View insider ownership

8-K
QuantumScape Files Current Report on Apr. 22, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

View filing

10-Q
QuantumScape Files Quarterly Report on Oct. 24, 2025

The 10-Q contains QuantumScape's unaudited quarterly financial statements, revenue, earnings updates, and cash flow changes between annual reports.

View earnings history

QuantumScape SEC Filing History

Browse QuantumScape's complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
05/14/2026 5:57 PM
QuantumScape (1811414) Issuer
Straubel Jeffrey B (1494727) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/12/2026 4:39 PM
QuantumScape (1811414) Subject
Straubel Jeffrey B (1494727) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/08/2026 4:20 PM
QuantumScape (1811414) Issuer
Singh Mohit (1834019) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/06/2026 3:03 PM
QuantumScape (1811414) Subject
Singh Mohit (1834019) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/01/2026 4:02 PM
QuantumScape (1811414) Issuer
Sivaram Srinivasan (1587067) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/23/2026 4:11 PM
QuantumScape (1811414) Filer
Form ARS
04/23/2026 3:39 PM
QuantumScape (1811414) Filer
Form DEFA14A
04/23/2026 3:30 PM
QuantumScape (1811414) Filer
Form DEF 14A
04/22/2026 3:22 PM
QuantumScape (1811414) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/16/2026 8:09 PM
QuantumScape (1811414) Issuer
Sivaram Srinivasan (1587067) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:10 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:11 PM
Fasoli Luca Giovanni (2068228) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:11 PM
QuantumScape (1811414) Issuer
Singh Mohit (1834019) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:12 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:13 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/03/2026 5:12 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/03/2026 5:12 PM
QuantumScape (1811414) Issuer
Straubel Jeffrey B (1494727) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/03/2026 5:13 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/02/2026 4:06 PM
QuantumScape (1811414) Subject
Straubel Jeffrey B (1494727) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
04/02/2026 4:07 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/27/2026 10:37 AM
QuantumScape (1811414) Subject
VANGUARD GROUP INC (102909) Filed by
Form SCHEDULE 13G/A
03/13/2026 4:02 PM
QuantumScape (1811414) Issuer
Straubel Jeffrey B (1494727) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/13/2026 4:03 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/11/2026 4:17 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/11/2026 4:03 PM
QuantumScape (1811414) Subject
Straubel Jeffrey B (1494727) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/06/2026 6:57 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2026 7:00 PM
NIEBERGALL ROSS (1987171) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2026 6:53 PM
NIEBERGALL ROSS (1987171) Reporting
QuantumScape (1811414) Issuer
Form 3
Initial statement of beneficial ownership of securities  
03/06/2026 6:54 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2026 3:11 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/05/2026 8:00 AM
QuantumScape (1811414) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/04/2026 3:20 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/25/2026 6:54 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/25/2026 6:55 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/25/2026 6:56 PM
QuantumScape (1811414) Issuer
Singh Mohit (1834019) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
02/25/2026 6:59 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/25/2026 6:59 PM
QuantumScape (1811414) Issuer
Sivaram Srinivasan (1587067) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
02/25/2026 7:00 PM
Fasoli Luca Giovanni (2068228) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/25/2026 6:38 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/25/2026 6:40 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/25/2026 6:33 PM
Fasoli Luca Giovanni (2068228) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
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02/25/2026 6:34 PM
QuantumScape (1811414) Subject
Sivaram Srinivasan (1587067) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/25/2026 6:35 PM
QuantumScape (1811414) Subject
Singh Mohit (1834019) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/25/2026 6:37 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/23/2026 3:47 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/20/2026 5:49 PM
QuantumScape (1811414) Issuer
Straubel Jeffrey B (1494727) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
02/20/2026 5:50 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/20/2026 5:51 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/20/2026 5:53 PM
QuantumScape (1811414) Issuer
Sivaram Srinivasan (1587067) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
02/20/2026 5:54 PM
QuantumScape (1811414) Issuer
Singh Mohit (1834019) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
02/20/2026 5:54 PM
Fasoli Luca Giovanni (2068228) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/20/2026 5:56 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/19/2026 5:22 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/19/2026 3:49 PM
QuantumScape (1811414) Subject
Straubel Jeffrey B (1494727) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/18/2026 5:46 PM
QuantumScape (1811414) Subject
Singh Mohit (1834019) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/18/2026 5:49 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/18/2026 5:54 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/18/2026 5:58 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/18/2026 5:39 PM
Fasoli Luca Giovanni (2068228) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/18/2026 5:42 PM
QuantumScape (1811414) Subject
Sivaram Srinivasan (1587067) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/11/2026 3:21 PM
QuantumScape (1811414) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/30/2026 5:11 PM
QuantumScape (1811414) Issuer
RIBAR GEOFFREY G (1247434) Reporting
Form 3
Initial statement of beneficial ownership of securities  
01/30/2026 5:13 PM
QuantumScape (1811414) Issuer
RIBAR GEOFFREY G (1247434) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/30/2026 5:09 AM
QuantumScape (1811414) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/16/2026 3:40 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/14/2026 3:48 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
01/07/2026 5:02 PM
QuantumScape (1811414) Issuer
Straubel Jeffrey B (1494727) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/07/2026 5:02 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/05/2026 4:36 PM
QuantumScape (1811414) Subject
Straubel Jeffrey B (1494727) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/22/2025 8:26 PM
QuantumScape (1811414) Issuer
Straubel Jeffrey B (1494727) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/22/2025 3:50 PM
QuantumScape (1811414) Filer
Form CERT
12/22/2025 3:30 PM
QuantumScape (1811414) Filer
Form 8-A12B
12/22/2025 3:31 PM
QuantumScape (1811414) Filer
Form 25
Notification of the removal from listing and registration of matured, redeemed or retired securities  
12/19/2025 3:52 PM
QuantumScape (1811414) Subject
Straubel Jeffrey B (1494727) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/17/2025 5:38 PM
Lovett Gena C (1785725) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
12/17/2025 5:39 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
12/16/2025 4:47 PM
QuantumScape (1811414) Issuer
Saluja Dipender (1834268) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
12/15/2025 5:24 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/15/2025 3:12 PM
Capricorn-Libra Investment Group, LP (1890033) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/12/2025 3:37 PM
Capricorn-Libra Investment Group, LP (1890033) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
12/10/2025 5:56 AM
QuantumScape (1811414) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
12/08/2025 4:03 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
12/08/2025 3:55 PM
QuantumScape (1811414) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/26/2025 6:22 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/25/2025 8:17 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/24/2025 3:25 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/21/2025 3:35 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/20/2025 5:05 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/20/2025 4:39 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/20/2025 4:39 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/20/2025 4:39 PM
QuantumScape (1811414) Issuer
Singh Mohit (1834019) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
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11/20/2025 4:39 PM
QuantumScape (1811414) Issuer
Sivaram Srinivasan (1587067) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/19/2025 4:07 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/18/2025 8:37 PM
QuantumScape (1811414) Subject
Singh Mohit (1834019) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/18/2025 8:39 PM
QuantumScape (1811414) Subject
Sivaram Srinivasan (1587067) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/18/2025 8:25 PM
Holme Timothy (1834249) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/18/2025 8:28 PM
Hettrich Kevin (1834025) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/18/2025 8:30 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/12/2025 4:15 PM
MCCARTHY MICHAEL O III (1177264) Reporting
QuantumScape (1811414) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/07/2025 7:23 PM
QuantumScape (1811414) Issuer
Straubel Jeffrey B (1494727) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)

QuantumScape SEC Filings - Frequently Asked Questions

QuantumScape (QS) has submitted 679+ filings to the SEC since 2020. You can browse the complete history or filter by form type using the tools above.

QuantumScape's fiscal year ends on December 31. The company typically files its 10-K annual report by the end of February, covering the prior fiscal year's financial results. Key financial data from these reports is available on QuantumScape's financial statements page.

The most recent filing was a Form 4 submitted on May 14, 2026. This was an insider ownership change filed by 4 - QuantumScape Corp (0001811414) (Issuer).

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NYSE:QS) was last updated on 5/14/2026 by MarketBeat.com Staff.
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