Transaction · 0001628280-26-058021

Glance Natalie

Glance Natalie, CEO, reported an open-market or private sale at Duolingo, Inc. involving 2751.000000 shares for an estimated $355236.63. Reported holdings after the transaction were 170650.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCEO
DUOLDuolingo, Inc.
Trade date
Aug 17, 2026
Filing date
Aug 19, 2026
View on SEC Insider profile
Estimated value-$355kShares × reported price
Shares traded2.75k$129.13 per share
Holdings after170kDirect
% of reported position traded1.59%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 173,401 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.

DUOL price since this filing

Daily closing prices, with the filing date and available return windows
DUOL · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -8.3%1w ago -6.1%1d ago -9.0%
Returns since7d -3.5%30d -2.8%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001628280-26-058021
Class A Common Stock
Transaction date
Aug 17, 2026
Filed Aug 19, 2026, 09:16 PM · 2d delay
Shares
2,751 sh
$129.13 per share
Estimated value
-$355k
Computed from shares × price
Holdings after
170,650 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership 10b5-1 Detected
Filing-only score

0 points

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.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 2

    Filing reported within two business days of the transaction.
  • tenb5_1_detected-10 points

    is_10b5_1 = true

    Stored filing content includes detected 10b5-1 language.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Engineering Officer

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.

  2. F2

    The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on September 15, 2025.

  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 $136.68 to $137.61,…

  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 $137.72 to $138.59,…

Original filing · 0001628280-26-058021
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