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sellWeak cluster of 410b5-1 plan

Nathan Blecharczyk sold $505k of ABNB

Chief Strategy Officer at Airbnb, Inc.. 2,738 shares at an average of $184.42, traded Aug 20, 2026, filed Aug 21, 2026.

Warning score
28
Value
$505k
2,738 shares
Holdings after
74,808
-4% from before
From 52-week low
+66%
low $111.54, close $185.00
From 52-week high
-1%
high $186.39, as of Aug 20, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $505k at market
    +18
  • Share of holdings sold
    Sold 3.5% of holdings
    0
  • Cluster
    4 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.

ABNBOct 13, 2026 · close 165.58
Since filing Aug 21, 2026: -11.6%SPY +1.9% · excess -13.5%

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 0001193125-26-361410, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 19, 2026FTax withholding
Class A Common Stock10b5-1
-4,085$183.25$749k77,546Aug 21, 2026
Aug 19, 2026CConversion
Class A Common Stockindirect: By Trust10b5-1
+450--20,567Aug 21, 2026
Aug 20, 2026SOpen-market sale
Class A Common Stock10b5-1
-2,738$184.42$505k74,808Aug 21, 2026
Aug 19, 2026CConversion
Class B Common Stockderivativeindirect: By Trust10b5-1
-450$0.00$045,008,659Aug 21, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
38Weak
ABNBsell 210b5-1
Airbnb, Inc.
Nathan Blecharczyk
Chief Strategy Officer
$2.1M
13,615 shares
-40%
16Weak
ABNBsell 210b5-1
Airbnb, Inc.
David C Bernstein
Chief Accounting Officer
$252k
1,489 shares
-3%
38Weak
ABNBsell 210b5-1
Airbnb, Inc.
Nathan Blecharczyk
Chief Strategy Officer
$2.3M
13,615 shares
-40%
12Weak
ABNBsell 210b5-1
Airbnb, Inc.
David C Bernstein
Chief Accounting Officer
$953k
5,224 shares
-10%
48Moderate
ABNBsell 210b5-1
Airbnb, Inc.
Nathan Blecharczyk
Chief Strategy Officer
$13M
70,775 shares
-91%
38Weak
ABNBsell 210b5-1
Airbnb, Inc.
Nathan Blecharczyk
Chief Strategy Officer
$3.7M
19,659 shares
-49%
48Moderate
ABNBsell 210b5-1
Airbnb, Inc.
Nathan Blecharczyk
Chief Strategy Officer
$67M
353,292 shares
-206%
45Moderate
ABNBsell 410b5-1
Airbnb, Inc.
Nathan Blecharczyk
Chief Strategy Officer
$2.5M
13,615 shares
-36%
25Weak
ABNBsell 510b5-1
Airbnb, Inc.
Kenneth I Chenault
director
$1.4M
8,346 shares
-17%
55Moderate
ABNBsell 510b5-1
Airbnb, Inc.
Nathan Blecharczyk
Chief Strategy Officer
$93M
531,000 shares
-76%

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.