QS Form 144: Executive Reports Multiple Share Dispositions

Company reported Form 144 notice showing proposed dispositions of Class A Common Stock by Michael O. McCarthy III and a vesting of RSUs.

Rhea-AI Filing Summary

Company reported Form 144 notice showing proposed dispositions of Class A Common Stock by Michael O. McCarthy III and a vesting of RSUs. The filing lists multiple sales during Feb–Mar 2026 (totaling disclosed lots of shares) and an RSU vesting of 50,803 shares on 05/15/2026.

The filing itemizes prior sales by Michael O. McCarthy III on 02/18/2026 (58,332 shares), 02/19/2026 (18,356 shares), 02/25/2026 (18,393 shares), 03/04/2026 (30,000 shares) and 03/06/2026 (45,000 shares), with dollar amounts shown per line.

Insights

Insider Trading Analyst

TL;DR: Filing documents multiple dispositions by an executive and an RSU vesting event.

The excerpt lists sequential share dispositions by Michael O. McCarthy III in Feb–Mar 2026 with per‑trade share counts and gross proceeds per line. It also records an RSU vesting of 50,803 shares on 05/15/2026 attributed to issuer compensation.

Cash‑flow treatment and whether these sales were open‑market, block trades, or pursuant to a plan are not stated in the excerpt; subsequent filings would be needed for execution method or remaining holdings.

Key Figures

RSU vesting: 50,803 shares Sale on 02/18/2026: 58,332 shares Sale on 02/19/2026: 18,356 shares +3 more

6 metrics

RSU vesting 50,803 shares vesting on 05/15/2026, labeled Compensation

Sale on 02/18/2026 58,332 shares Michael O. McCarthy III; proceeds listed as $416,752.97

Sale on 02/19/2026 18,356 shares Michael O. McCarthy III; proceeds listed as $129,883.38

Sale on 02/25/2026 18,393 shares Michael O. McCarthy III; proceeds listed as $129,648.58

Sale on 03/04/2026 30,000 shares Michael O. McCarthy III; proceeds listed as $207,144.00

Sale on 03/06/2026 45,000 shares Michael O. McCarthy III; proceeds listed as $302,859.00

Key Terms

Form 144, RSU vesting, Class A Common Stock

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

RSU vesting financial

"Class A Common Stock | 05/15/2026 | RSU vesting"

RSU vesting is the process by which restricted stock units — a promise by a company to give shares to an employee — become actual, owned shares over time or when certain goals are met. Investors care because vested shares can dilute existing ownership when issued, and the timing of vesting affects when employees can sell shares, which can influence share supply, insider selling patterns, and company incentives.

Class A Common Stock market

"Class A Common Stock | Morgan Stanley Smith Barney LLC"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the QS Form 144 disclose about insider sales?

The filing lists proposed dispositions by Michael O. McCarthy III with specific trades on 02/18/2026, 02/19/2026, 02/25/2026, 03/04/2026, and 03/06/2026. Each line shows share counts and corresponding dollar amounts.

How many RSUs vested according to the filing for QS?

The excerpt shows an RSU vesting of 50,803 shares05/15/2026, labeled as issuer compensation. The filing links that vesting date to the securities to be sold section.

Are the dollar proceeds of the listed trades shown in the QS filing?

Yes; each disclosed trade line includes a dollar figure next to the share count (for example, $416,752.97 for 58,332 shares on 02/18/2026). Those line amounts are included in the excerpt.

Does the Form 144 excerpt state how sales will be executed?

The provided excerpt does not state execution methods. It lists dates, share counts, and dollar amounts but does not specify whether transactions were open‑market, block trades, or under a trading plan.

Who is the reporting person named in the filing?

The filing identifies Michael O. McCarthy III with an address at 1730 Technology Dr., San Jose, CA 95110 as the person associated with the listed share dispositions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/18/2026 - 08:26 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001177264
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	QuantumScape Corp
SEC File Number	001-39345
Address of Issuer	1730 TECHNOLOGY DRIVE SAN JOSE CALIFORNIA 95110
Phone	(408) 452-2000
Name of Person for Whose Account the Securities are To Be Sold	MCCARTHY MICHAEL O III
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A Common Stock	Morgan Stanley Smith Barney LLC 1 New York Plaza, 38th floor New York NY 10004	24211	178485.53	578338434	05/18/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A Common Stock	05/15/2026	RSU vesting	Issuer			50803	05/15/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Michael O. McCarthy III 1730 Technology Dr. San Jose CA 95110	Class A Common Stock	02/18/2026	58332	416752.97
Michael O. McCarthy III 1730 Technology Dr. San Jose CA 95110	Class A Common Stock	02/19/2026	18356	129883.38
Michael O. McCarthy III 1730 Technology Dr. San Jose CA 95110	Class A Common Stock	02/25/2026	18393	129648.58
Michael O. McCarthy III 1730 Technology Dr. San Jose CA 95110	Class A Common Stock	03/04/2026	30000	207144.00
Michael O. McCarthy III 1730 Technology Dr. San Jose CA 95110	Class A Common Stock	03/06/2026	45000	302859.00

144: Remarks and Signature

Remarks	The number of shares to be sold represents an estimate of the amount necessary to cover tax obligations on the release of restricted stock units.
Date of Notice	05/18/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Michael O. McCarthy III
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)