Transaction · 0001628280-26-058019

Chen Stephen C.

Chen Stephen C., GC, reported an open-market or private sale at Duolingo, Inc. involving 1024.000000 shares for an estimated $132229.12. Reported holdings after the transaction were 51841.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SGC
DUOLDuolingo, Inc.
Filing timeAug 19
Trade dateAug 17, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$146.03
Pre-filing
1mo ago -8.3%1w ago -6.1%1d ago -9.0%
Returns since
7d -3.5%30d +8.7%90d +8.7%180d +8.7%1y +8.7%

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 2026-08-19Filed 15 days ago · 30 days of 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
0001628280-26-058019
Class A Common Stock
Transaction date
Aug 17, 2026
Filed Aug 19, 2026, 09:16 PM · 2d delay
Shares
1.02k sh
$12.9k per share
Estimated value
-$13.2M
Computed from shares × price
Holdings after
51.8k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
+10score
Filing-only score

+10

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

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

General Counsel

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Represents shares automatically sold to satisfy tax withholding obligations in connection with the vesting of restricted stock units and delivery of shares

Original filing · 0001628280-26-058019
Related transactions

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Same reporting owner
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