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sellWeak cluster of 510b5-1 plan

Amanda Whalen sold $439k of KVYO

Chief Financial Officer at Klaviyo, Inc.. 14,000 shares at an average of $31.38, traded Dec 18, 2025, filed Dec 19, 2025.

Warning score
34
Value
$439k
14,000 shares
Holdings after
452,174
-3% from before
From 52-week low
+33%
low $23.72, close $31.51
From 52-week high
-36%
high $49.19, as of Dec 18, 2025

Score components

  • Role
    CFO
    +22
  • Trade size
    $439k at market
    +17
  • Share of holdings sold
    Sold 3.0% of holdings
    0
  • Cluster
    5 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.

KVYOOct 9, 2026 · close 17.32
Since filing Dec 19, 2025: -45.8%SPY +15.3% · excess -61.1%

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 0001470831-25-000444, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 18, 2025SOpen-market sale
Series A Common Stock10b5-1
-13,540$31.41$425k452,634Dec 19, 2025
Dec 18, 2025SOpen-market sale
Series A Common Stock10b5-1
-460$30.59$14k452,174Dec 19, 2025

Related signals

Other insiders at Klaviyo, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
40Moderate
KVYOsell10b5-1
Klaviyo, Inc.
Ed Hallen
director, owner
$1.7M
97,482 shares
-104%
3Weak
KVYOsell 210b5-1
Klaviyo, Inc.
Ed Hallen
director, owner
$22k
1,300 shares
-1%
16Weak
KVYOsell 310b5-1
Klaviyo, Inc.
Susan St. Ledger
director
$37k
2,328 shares
-9%
40Moderate
KVYOsell 310b5-1
Klaviyo, Inc.
Landon Edmond
Chief Legal Officer
$1.2M
61,576 shares
-11%
55Moderate
KVYOsell 310b5-1
Klaviyo, Inc.
Ed Hallen
director, owner
$2.0M
98,782 shares
-74%
58Moderate
KVYOsell 210b5-1
Klaviyo, Inc.
Andrew Bialecki
Co-Chief Executive Officer
$3.6M
200,000 shares
-100%
58Moderate
KVYOsell 210b5-1
Klaviyo, Inc.
Andrew Bialecki
Co-Chief Executive Officer
$3.9M
200,000 shares
-100%
17Weak
KVYOsell 210b5-1
Klaviyo, Inc.
Landon Edmond
Chief Legal Officer
$289k
14,366 shares
-4%
58Moderate
KVYOsell 210b5-1
Klaviyo, Inc.
Andrew Bialecki
Co-Chief Executive Officer
$4.1M
206,827 shares
-100%
58Moderate
KVYOsell 210b5-1
Klaviyo, Inc.
Andrew Bialecki
Co-Chief Executive Officer
$3.7M
200,000 shares
-100%

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.

Amanda Whalen sold $439k of KVYO | InsiderTell