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sellNotable cluster of 6

Brad W Buss sold $5.4M of QS

director at QuantumScape Corp. 300,000 shares at an average of $17.98, traded Oct 31, 2025, filed Oct 31, 2025.

Warning score
60
Value
$5.4M
300,000 shares
Holdings after
122,476
-71% from before
From 52-week low
+431%
low $3.47, close $18.44
From 52-week high
0%
high $18.44, as of Oct 31, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $5.4M at market
    +25
  • Share of holdings sold
    Sold 71% 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.

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 9, 2026 · close 4.58
Since filing Oct 31, 2025: -75.2%SPY +15.4% · excess -90.5%

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 0001336664-25-000008, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 31, 2025MOption exercise
Class A Common Stock
+300,000$6.23$1.9M422,476Oct 31, 2025
Oct 31, 2025SOpen-market sale
Class A Common Stock
-125,000$17.37$2.2M297,476Oct 31, 2025
Oct 31, 2025SOpen-market sale
Class A Common Stock
-175,000$18.41$3.2M122,476Oct 31, 2025
Oct 31, 2025MOption exercise
Stock Option (Right to Buy)derivative
-300,000$0.00$0707,612Oct 31, 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%
25Weak
QSsell 310b5-1
QuantumScape Corp
Kevin Hettrich
CHIEF FINANCIAL OFFICER
$68k
9,800 shares
-1%
40Moderate
QSsell 310b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$1.1M
161,331 shares
-13%
48Moderate
QSsell 3
QuantumScape Corp
Michael O McCarthy III
CHIEF LEGAL OFFICER
$510k
75,000 shares
-7%
25Weak
QSsell 310b5-1
QuantumScape Corp
Kevin Hettrich
CHIEF FINANCIAL OFFICER
$66k
9,800 shares
-1%
40Moderate
QSsell 310b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$1.4M
195,451 shares
-16%
20Weak
QSsell 210b5-1
QuantumScape Corp
Kevin Hettrich
CHIEF FINANCIAL OFFICER
$104k
9,800 shares
-1%
33Weak
QSsell 210b5-1
QuantumScape Corp
Timothy Holme
CHIEF TECHNOLOGY OFFICER
$2.4M
211,362 shares
-15%
30Weak
QSsell 310b5-1
QuantumScape Corp
Jeffrey B Straubel
director
$1.8M
157,171 shares
-37%

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 $5.4M of QS | InsiderTell