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sellNotable cluster of 610b5-1 plan

Andrew Houston sold $13M of DBX

Co-CEO at DROPBOX, INC.. 383,800 shares at an average of $35.02, traded Sep 10, 2026, filed Sep 14, 2026.

Warning score
65
Value
$13M
383,800 shares
Holdings after
0
-100% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CEO
    +25
  • Trade size
    $13.4M at market
    +25
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    6 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.

DBXOct 9, 2026 · close 34.36
Since filing Sep 14, 2026: -7.9%SPY +2.6% · excess -10.5%

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 0001734563-26-000019, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 10, 2026CConversion
Class A Common Stockindirect: See Footnote10b5-1
+383,800$0.00$0383,80028 d ago
Sep 10, 2026SOpen-market sale
Class A Common Stockindirect: See Footnote10b5-1
-324,432$34.98$11M59,36828 d ago
Sep 10, 2026SOpen-market sale
Class A Common Stockindirect: See Footnote10b5-1
-59,368$35.19$2.1M028 d ago
Sep 10, 2026CConversion
Class B Common Stockderivativeindirect: See foonote10b5-1
-383,800$0.00$065,944,82928 d ago

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
58Moderate
DBXsell 210b5-1
DROPBOX, INC.
Andrew Houston
Co-CEO
$12M
354,300 shares
-100%
11Weak
DBXsell 210b5-1
DROPBOX, INC.
Sarah Elizabeth Schubach
Chief Accounting Officer
$66k
2,025 shares
-2%
18Weak
DBXsell 610b5-1
DROPBOX, INC.
Sarah Elizabeth Schubach
Chief Accounting Officer
$74k
2,025 shares
-1%
45Moderate
DBXsell 610b5-1
DROPBOX, INC.
Ashraf Alkarmi
Co-CEO
$1.0M
28,800 shares
-3%
47Moderate
DBXsell 610b5-1
DROPBOX, INC.
Ross Tennenbaum
Chief Financial Officer
$3.4M
97,558 shares
-12%
26Weak
DBXsell 610b5-1
DROPBOX, INC.
Lisa M Campbell
director
$160k
4,598 shares
-19%
27Weak
DBXsell 610b5-1
DROPBOX, INC.
William T Yoon
Chief Legal Officer
$431k
12,382 shares
-3%
17Weak
DBXsell 610b5-1
DROPBOX, INC.
Sarah Elizabeth Schubach
Chief Accounting Officer
$58k
1,631 shares
-1%
24Weak
DBXsell 310b5-1
DROPBOX, INC.
Ashraf Alkarmi
General Manager, Core
$284k
10,098 shares
-2%
25Weak
DBXsell 310b5-1
DROPBOX, INC.
Timothy Regan
Chief Financial Officer
$70k
2,500 shares
-0%

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.

Andrew Houston sold $13M of DBX | InsiderTell