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sellNotable cluster of 6

Brad W Buss sold $6.3M of QS

director at QuantumScape Corp. 400,000 shares at an average of $15.75, traded Oct 24, 2025, filed Oct 28, 2025.

Warning score
60
Value
$6.3M
400,000 shares
Holdings after
122,476
-77% from before
From 52-week low
+385%
low $3.47, close $16.82
From 52-week high
-6%
high $17.85, as of Oct 24, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $6.3M at market
    +25
  • Share of holdings sold
    Sold 77% of holdings
    +20
  • Cluster
    6 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -22.5%, 3m -34.9%, 6m -55.3%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

QSOct 12, 2026 · close 4.27
Since filing Oct 28, 2025: -72.6%SPY +14.5% · excess -87.1%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001336664-25-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 24, 2025MOption exercise
Class A Common Stock
+400,000$6.23$2.5M522,476Oct 28, 2025
Oct 24, 2025SOpen-market sale
Class A Common Stock
-200,000$15.06$3.0M322,476Oct 28, 2025
Oct 24, 2025SOpen-market sale
Class A Common Stock
-200,000$16.44$3.3M122,476Oct 28, 2025
Oct 24, 2025MOption exercise
Stock Option (Right to Buy)derivative
-400,000$0.00$01,007,612Oct 28, 2025

Related signals

Other insiders at QuantumScape Corp and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
14Weak
QSsell10b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$545k
120,000 shares
-8%
15Weak
QSsell10b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$611k
120,000 shares
-7%
23Weak
QSsell10b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$77k
12,723 shares
-100%
8Weak
QSsell10b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$241k
41,876 shares
-2%
18Weak
QSsell 210b5-1
QuantumScape Corp
Kevin Hettrich
CHIEF FINANCIAL OFFICER
$71k
9,800 shares
-1%
28Weak
QSsell 210b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$1000k
137,245 shares
-8%
19Weak
QSsell 210b5-1
QuantumScape Corp
Kevin Hettrich
CHIEF FINANCIAL OFFICER
$78k
9,800 shares
-1%
33Weak
QSsell 210b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$1.8M
190,935 shares
-10%
26Weak
QSsell 310b5-1
QuantumScape Corp
Kevin Hettrich
CHIEF FINANCIAL OFFICER
$79k
9,800 shares
-1%
35Weak
QSsell 310b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$975k
118,417 shares
-7%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Brad W Buss sold $6.3M of QS | InsiderTell