Skip to content
sellWeak cluster of 310b5-1 plan

Chan W Lee sold $148k of AMBA

Chief Operating Officer at AMBARELLA INC. 2,000 shares at an average of $74.19, traded Jan 2, 2025, filed Jan 3, 2025.

Warning score
26
Value
$148k
2,000 shares
Holdings after
117,918
-2% from before
From 52-week low
+41%
low $52.39, close $74.10
From 52-week high
-3%
high $76.22, as of Jan 2, 2025

Score components

  • Role
    COO
    +20
  • Trade size
    $148k at market
    +11
  • Share of holdings sold
    Sold 1.7% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

AMBAOct 9, 2026 · close 67.43
Since filing Jan 3, 2025: -13.0%SPY +34.1% · excess -47.1%

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 0001280263-25-000001, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 2, 2025SOpen-market sale
Ordinary Shares10b5-1
-1,000$73.32$73k118,918Jan 3, 2025
Jan 3, 2025SOpen-market sale
Ordinary Shares10b5-1
-1,000$75.06$75k117,918Jan 3, 2025

Related signals

Other insiders at AMBARELLA INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
10Weak
AMBAsell 510b5-1
AMBARELLA INC
Christopher B Paisley
director
$18k
250 shares
-1%
28Weak
AMBAsell 510b5-1
AMBARELLA INC
John Alexander Young
CFO
$128k
1,896 shares
-2%
49Moderate
AMBAsell 5
AMBARELLA INC
John Alexander Young
CFO
$203k
3,126 shares
-3%
47Moderate
AMBAsell 5
AMBARELLA INC
Chan W Lee
Chief Operations Officer
$188k
2,893 shares
-2%
41Moderate
AMBAsell 5
AMBARELLA INC
Chi-Hong Ju
Senior VP, Systems & GM
$130k
2,009 shares
-1%
56Moderate
AMBAsell 5
AMBARELLA INC
Feng-Ming Wang
CEO
$395k
6,086 shares
-1%
56Moderate
AMBAsell 6
AMBARELLA INC
Feng-Ming Wang
CEO
$391k
4,928 shares
-1%
40Moderate
AMBAsell 6
AMBARELLA INC
Chi-Hong Ju
Sr. Vice President, Systems
$93k
1,168 shares
-1%
42Moderate
AMBAsell 6
AMBARELLA INC
Leslie Kohn
Chief Technology Officer
$179k
2,249 shares
-0%
46Moderate
AMBAsell 6
AMBARELLA INC
Chan W Lee
Chief Operating Officer
$155k
1,947 shares
-2%

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.

Chan W Lee sold $148k of AMBA | InsiderTell