Form 4: Duolingo Chief Engineering Officer Sells Shares

Duolingo's Chief Engineering Officer, Natalie Glance, reported sales of Class A Common Stock totaling 5,005 shares, primarily under a pre-arranged trading plan and for tax obligations.

Summary

• Natalie Glance, Duolingo's Chief Engineering Officer, reported the disposition of 5,005 shares of Class A Common Stock.
• On November 17, 2025, 2,534 shares were sold at a price of $177.95 per share to satisfy tax withholding obligations related to the vesting of Restricted Stock Units (RSUs).
• On November 18, 2025, an additional 2,471 shares were sold in multiple transactions under a Rule 10b5-1 trading plan adopted on November 14, 2024.
• The sales on November 18, 2025, occurred at weighted average prices ranging from $173.7975 to $177.6025 per share.
• Following these transactions, Natalie Glance directly beneficially owns 111,166 shares of Class A Common Stock and indirectly owns 130 shares through her son.

Sentiment

Score: 5

Explanation: The filing reports routine insider transactions, including sales for tax obligations and under a pre-arranged 10b5-1 plan. These are generally neutral events and do not indicate a significant positive or negative shift in the company's fundamentals or outlook.

Positives

• The sales under the Rule 10b5-1 trading plan indicate pre-planned transactions, demonstrating adherence to insider trading regulations and transparency.
• A portion of the sales was for tax withholding obligations related to RSU vesting, which is a routine and expected event for executive compensation.

Negatives

• The transactions resulted in a reduction of Natalie Glance's direct beneficial ownership in Duolingo, decreasing by 5,005 shares.

Industry Context

This Form 4 filing reports routine insider stock transactions and does not provide information relevant to broader industry trends or competitive landscape analysis.

Stakeholder Impact

• Shareholders: A minor reduction in direct insider ownership, which is generally not considered a significant signal given the pre-planned nature of the sales and tax-related dispositions.

Key Dates

Recommendation

The Form 4 filing details routine insider stock sales, primarily for tax purposes and under a pre-established trading plan. These transactions do not reflect a change in the company's operational performance, strategic direction, or fundamental value. Therefore, based solely on this filing, a 'hold' recommendation is appropriate as there is no new information to warrant a change in investment thesis.

Keywords

Duolingo, DUOL, Insider Trading, Stock Sale, Form 4, Natalie Glance, Chief Engineering Officer, 10b5-1 Plan, Equity Disposition