Welcome to our dedicated page for Quantumscape SEC filings (Ticker: QS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
QuantumScape Corporation filings document the company’s solid-state lithium-metal battery business, operating updates, governance, and public-company capital structure. Results-related 8-Ks include shareholder letters and exhibits covering the Eagle Line pilot production platform, the Cobra separator process, QSE-5 cells, customer programs, and the company’s development and licensing model.
Proxy materials describe board composition, director elections, executive compensation, equity awards, and annual meeting governance. Other current reports record board appointments and director compensation arrangements, while listing filings document the voluntary withdrawal of the company’s Class A common stock from the New York Stock Exchange and its Nasdaq listing under the QS ticker.
QuantumScape (QS) insider transaction: The company’s Chief Legal Officer reported an option exercise and related sale on 10/30/2025. He exercised stock options for 50,000 Class A shares at $2.377 per share (code M) and sold 50,000 shares at a weighted average price of $15.7797 (code S).
The sale price reflects multiple trades between $15.77 and $15.795. Following these transactions, he reported beneficial ownership of 1,376,118 Class A shares, held directly. This total includes 1,217,795 shares represented by RSUs and PSUs, which settle one share per unit subject to quarterly vesting or performance milestones. After the exercise, 25,000 stock options remain beneficially owned, with an expiration date of 06/05/2029.
QuantumScape (QS): Proposed insider sale under Rule 144. A shareholder filed a Form 144 notice to sell up to 300,000 shares of common stock. The filing lists an aggregate market value of $5,392,580 and an approximate sale date of 10/31/2025 on the NYSE, with Morgan Stanley Smith Barney LLC as broker.
The shares to be sold were acquired on 10/31/2025 through the exercise of options under a registered plan for cash, in the same 300,000-share amount. Shares outstanding are 522,939,205. As context, during the past three months, Brad Buss sold 400,000 shares on 10/24/2025 for gross proceeds of $6,299,270.
QuantumScape (QS) filed a Form 144 notice for a proposed sale of common stock. The filing lists a plan to sell 50,000 shares with an aggregate market value of $788,985 through Morgan Stanley Smith Barney LLC, with an approximate sale date of 10/30/2025 on the NYSE. The shares were acquired the same day via the exercise of options under a registered plan for cash.
The notice also records recent activity: sales of 46,264 shares on 10/24/2025 for $706,042.29 and 38,035 shares on 09/12/2025 for $347,267.16 by Michael McCarthy. Form 144 is a notice of intent and not a commitment to sell, and actual sales depend on market conditions and applicable volume and timing limits.
QuantumScape (QS) disclosed insider activity by its Chief Legal Officer. On 10/24/2025, the officer exercised 25,000 stock options at an exercise price of $2.377 (transaction code M), acquiring the same number of Class A shares. On the same date, the officer sold 46,264 shares at a weighted average price of $15.2611 (transaction code S), with individual trades ranging from $15.23 to $15.315.
Following these transactions, the officer beneficially owns 1,376,118 shares directly. This figure includes 1,217,795 shares represented by RSUs and PSUs, which vest over time or upon performance milestones. The derivative table notes a remaining 75,000 stock options held after the exercise, from an option grant originally exercisable since 07/05/2019 and expiring on 06/05/2029.
QuantumScape (QS) reported an insider transaction by its Chief Development Officer. On 10/24/2025, the reporting person exercised stock options for 62,975 shares at $2.377 per share (Code M), then sold 220,000 shares of Class A Common Stock at a weighted average price of $15.0857 (Code S), with trades ranging from $14.94 to $15.345.
Following these transactions, the reporting person beneficially owns 1,420,054 shares directly, which includes 1,364,273 RSUs/PSUs. Each RSU/PSU represents the right to receive one share; RSUs vest quarterly and PSUs vest upon performance milestones.
QuantumScape (QS) filed a Form 4 reporting insider activity. On 10/24/2025, a director exercised stock options for 400,000 shares at $6.2336 (code M), then sold 200,000 shares at a weighted average price of $15.0599 (range $14.965–$15.145) and 200,000 shares at a weighted average price of $16.4365 (range $16.145–$16.79) (code S).
Following these transactions, the director directly owned 122,476 Class A shares, which include 48,192 RSUs that settle into one share each upon vesting. Indirect holdings were reported as 249,720 shares by the 2011 Buss Family Trust and 70,000 shares by the Buss Family Heritage Trust dated December 24, 2020. The director also reported 1,007,612 derivative securities (stock options) beneficially owned after the transactions.
QuantumScape (QS) insider activity: The company’s Chief Executive Officer and Director reported open-market sales of Class A common stock. On 10/24/2025, 30,000 shares were sold at $16.6102. On 10/27/2025, 90,000 shares were sold at a weighted average price of $17.0529, with trades ranging from $17.05 to $17.10. Following these transactions, directly held shares were 4,132,700, which includes 3,802,429 shares represented by RSUs and PSUs that vest over time subject to service and performance conditions. Indirect holdings were 360,000 shares held by trusts for which the reporting person serves as co-trustee.
QuantumScape (QS): Director Form 4 filing reports transactions on 10/24/2025. The reporting person converted Class B Common Stock into Class A on a one-to-one basis, including 480,878 shares by the Prinz Family Trust, 250,000 shares by the Benedikt F. Prinz 2019 Trust, and 250,000 shares by the Marie Helene Prinz 2019 Trust.
The filing also lists multiple open-market sales of Class A Common Stock at weighted average prices of $15.466 and $15.976 in separate transactions. Following these sales, direct holdings were 142,221 Class A shares, which include RSUs and PSUs that settle one-for-one in Class A shares. Indirect Class A positions in the three trusts were reduced to 0 shares after the reported sales.
Derivative holdings remained in Class B Common Stock after the conversions: 6,430,568 (Prinz Family Trust), 1,154,738 (Benedikt F. Prinz 2019 Trust), and 1,023,436 (Marie Helene Prinz 2019 Trust). Footnotes state that weighted average prices reflect multiple trades within stated ranges and that RSUs vest quarterly while PSUs vest upon performance milestones, subject to continued service.
QuantumScape (QS): A holder filed a Form 144 to sell up to 30,000 shares of Class A Common, with an aggregate market value of $511,632. The approximate sale date is 10/27/2025, to be executed on the NYSE through Morgan Stanley Smith Barney LLC.
The shares were acquired on 02/18/2025 via restricted stock vesting under a registered plan, for 30,000 shares paid in cash. Shares outstanding were 562,404,592. In the past three months, a table lists Srinivasan Sivaram sold 30,000 shares on 10/24/2025 for gross proceeds of $498,306.
QS filed a Form 144 notice for a proposed sale of 30,000 shares of Class A Common stock through Morgan Stanley Smith Barney LLC, with an approximate sale date of 10/27/2025 on the NYSE. The filing lists an aggregate market value of 3662662408.30 for the proposed sale.
The seller previously sold 30,000 shares on 10/24/2025 for $498,306.00 in gross proceeds. The shares to be sold were acquired via restricted stock vesting under a registered plan on 02/15/2024 (21,476 shares) and 02/21/2024 (8,524 shares). Form 144 is a notice of a planned sale by a security holder and does not indicate an issuance by the company.