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sellWeak10b5-1 plan

Luis von Ahn sold $17M of DUOL

President & CEO, Co-Founder at Duolingo, Inc.. 110,046 shares at an average of $151.70, traded Oct 7, 2026, filed Oct 9, 2026.

Warning score
35
Value
$17M
110,046 shares
Holdings after
0
-100% from before
From 52-week low
+69%
low $90.03, close $151.72
From 52-week high
-56%
high $347.27, as of Oct 7, 2026

Score components

  • Role
    CEO
    +25
  • Trade size
    $16.7M at market
    +25
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    No other insider selling within 14 days
    0
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -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.

DUOLOct 9, 2026 · close 149.92

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 0001628280-26-065528, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 7, 2026CConversion
Class A Common Stock10b5-1
+110,046$38.08$4.2M110,0463 d ago
Oct 7, 2026SOpen-market sale
Class A Common Stock10b5-1
-20,025$150.63$3.0M90,0213 d ago
Oct 7, 2026SOpen-market sale
Class A Common Stock10b5-1
-55,036$151.52$8.3M34,9853 d ago
Oct 7, 2026SOpen-market sale
Class A Common Stock10b5-1
-29,871$152.47$4.6M5,1143 d ago
Oct 7, 2026SOpen-market sale
Class A Common Stock10b5-1
-5,114$153.26$784k03 d ago
Oct 7, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-110,046$0.00$003 d ago
Oct 7, 2026CConversion
Class B Common Stockderivative10b5-1
+110,046$0.00$03,478,1663 d ago
Oct 7, 2026CConversion
Class B Common Stockderivative10b5-1
-110,046$0.00$03,368,1203 d ago

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
43Moderate
DUOLsell 210b5-1
Duolingo, Inc.
Luis von Ahn
President & CEO, Co-Founder
$7.0M
46,682 shares
-100%
50Moderate
DUOLsell 310b5-1
Duolingo, Inc.
Luis von Ahn
President & CEO, Co-Founder
$6.2M
40,980 shares
-110%
50Moderate
DUOLsell 310b5-1
Duolingo, Inc.
Luis von Ahn
President & CEO, Co-Founder
$4.3M
28,292 shares
-100%
40Moderate
DUOLsell 310b5-1
Duolingo, Inc.
Stephen C. Chen
General Counsel
$1.2M
8,072 shares
-16%
40Moderate
DUOLsell 310b5-1
Duolingo, Inc.
William B Gordon
director
$1.5M
10,000 shares
-13%
25Weak
DUOLsell10b5-1
Duolingo, Inc.
Severin Hacker
Chief Tech Officer, Co-Founder
$2.9M
10,000 shares
-99%
40Moderate
DUOLsell 310b5-1
Duolingo, Inc.
Severin Hacker
Chief Tech Officer, Co-Founder
$2.7M
10,000 shares
-99%
28Weak
DUOLsell 510b5-1
Duolingo, Inc.
Stephen C. Chen
General Counsel
$487k
1,515 shares
-4%
32Weak
DUOLsell 510b5-1
Duolingo, Inc.
Matthew Skaruppa
Chief Financial Officer
$3.5M
10,937 shares
-20%
40Moderate
DUOLsell 510b5-1
Duolingo, Inc.
Severin Hacker
Chief Tech Officer, Co-Founder
$3.4M
10,000 shares
-99%

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.

Luis von Ahn sold $17M of DUOL | InsiderTell