DUOL executive disposes 3,283 shares; retains 116,301 total stake
Rhea-AI Filing Summary
Natalie Glance, Chief Engineering Officer of Duolingo, Inc. (DUOL), reported multiple open-market sales of Class A common stock executed on 10/01/2025 pursuant to a Rule 10b5-1 trading plan adopted on 11/14/2024. The filings show nine sale entries totaling 3,283 shares sold at weighted-average prices reported in footnotes, with transaction price ranges between $303.45 and $320.21. Following these disposals, the reporting person directly beneficially owns 116,171 shares and indirectly owns 130 shares through a family member, for combined beneficial ownership of 116,301 shares.
Positive
- Sales executed under a Rule 10b5-1 plan, indicating preplanned transactions
- Substantial retained ownership after sales: 116,301 total shares
Negative
- Insider sold 3,283 shares on 10/01/2025, which reduces direct stake
- Weighted-average sale prices vary across transactions, creating less price transparency without broker breakdowns
Insights
Insider sales were executed under a pre-existing 10b5-1 plan and are routine for disclosed officers.
These sales were reported as occurring under a Rule 10b5-1 plan adopted on 11/14/2024, which provides an affirmative defense against insider trading claims when executed according to plan terms. The filing lists multiple tranches executed on 10/01/2025 with weighted-average sale prices described in footnotes.
The primary dependency is the plan's existence and timing; because the plan predates the sales, this reduces governance risk tied to opportunistic timing. Monitor any future Form 4s for additional plan activity or material changes in beneficial ownership within the next 30-90 days.
Total insider disposition was modest relative to total reported holdings, leaving substantial retained ownership.
The reported disposals total 3,283 shares sold across price ranges from $303.45 to $320.21, with the filer retaining a direct stake of 116,171 shares plus 130 indirect shares. The filing does not disclose the dollar value aggregated, only weighted-average price ranges in footnotes.
Watch for near-term changes in direct holdings reported on subsequent Forms; short-term market impact is likely limited given continued ownership of 116,301 shares.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Class A Common Stock | 100 | $300.56 | $30K |
| Sale | Class A Common Stock | 475 | $303.7442 | $144K |
| Sale | Class A Common Stock | 200 | $305.09 | $61K |
| Sale | Class A Common Stock | 600 | $306.505 | $184K |
| Sale | Class A Common Stock | 108 | $312.7463 | $34K |
| Sale | Class A Common Stock | 300 | $315.2833 | $95K |
| Sale | Class A Common Stock | 300 | $316.7367 | $95K |
| Sale | Class A Common Stock | 600 | $317.955 | $191K |
| Sale | Class A Common Stock | 600 | $319.7567 | $192K |
| holding | Class A Common Stock | -- | -- | -- |
Footnotes (1)
- The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on November 14, 2024. 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 $303.45 to $304.06, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. 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 $305.00 to $305.18, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. 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 $306.00 to $306.99, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. 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 $312.71 to $313.20, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. 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 $315.01 to $315.65, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. 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 $316.41 to $316.90, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. 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 $317.51 to $318.33, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote. 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 $319.46 to $320.21, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.
