Transaction · 0001628280-26-065528

von Ahn Luis

von Ahn Luis, PRES, CEO, CF, reported an open-market or private sale at Duolingo, Inc. involving 29871.000000 shares for an estimated $4554532.93. Reported holdings after the transaction were 5114.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SPRES, CEO, CF
DUOLDuolingo, Inc.
Filing timeOct 09
Trade dateOct 07, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position traded85.38%Shares sold ÷ (holdings after + shares sold). Estimated position before: 34,985 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$151.22
Pre-filing
1mo ago +2.1%1w ago -5.8%1d ago -2.0%
Returns since
7d30d90d180d1y

DUOL price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
DUOL since 2026-10-09Filed today · pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001628280-26-065528
Class A Common Stock
Transaction date
Oct 07, 2026
Filed Oct 09, 2026, 08:09 PM · 2d delay
Shares
29.8k sh
$152.47 per share
Estimated value
-$4.55M
Computed from shares × price
Holdings after
5.11k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership Large Holdings Reduction Large Sale Repeat Seller 10b5-1 Detected
0score
Filing-only score

0

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

President & CEO, Co-Founder

Officer YesDirector Yes10% YesOther No
Footnotes & amended
  1. F1

    The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2026.

  2. F2

    The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $150.00 to $150.99,…

  3. F3

    The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $151.00 to $151.99,…

  4. F4

    The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $152.00 to $152.99,…

  5. F5

    The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $153.00 to $153.61,…

  6. F6

    The options are fully vested and exercisable.

  7. F7

    Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Each share of Class B Common Stoc…

Original filing · 0001628280-26-065528
Related transactions

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Same reporting owner
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