The CEO's first open-market sale of this size without a 10b5-1 plan is a bearish signal. Monitor upcoming earnings or material corporate events that may have prompted the sale. The lack of insider buying alongside the selling reinforces the negative read.
Price Chart
Executive Summary
A cluster of insider sales at Duolingo totaling $4.99M, led by CEO and co-founder Luis von Ahn ($4.10M) and General Counsel Stephen Chen ($895K), all executed as open-market sales. The CEO sale is the largest single insider disposition in the cluster and represents a notable signal, though the total value is approximately 0.3% of Duolingo's market cap, placing it in the modest range. No insider purchases were reported, and the sales lack a 10b5-1 plan indication, suggesting informed selling ahead of potential headwinds.
Key Financial Metrics
Key Facts
- CEO Luis von Ahn sold 27,300 shares for $4.10M at $150.17 on 2026-09-16.
- General Counsel Stephen Chen sold 8,072 shares total for $1.21M on 2026-09-14.
- Total cluster total value is $4.99M, all open-market sales with no insider purchases.
- No 10b5-1 plan indicated for any of the sales, increasing the likelihood of discretionary selling.
- Total sales represent ~0.3% of Duolingo's market cap, within the modest range.
Financial Impact
Total insider sales of $4.99M, representing ~0.3% of market cap.
Risk Factors
- CEO selling may signal lack of confidence in near-term prospects.
- General Counsel selling adds to the negative signal from the C-suite.
- No insider buying to offset the selling suggests a one-sided bearish view.
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-DUOL-1789777575822 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 20, 2026 6d ago | SC 13G/A | $139.58 | awaiting T+20 | — | $138.60 (−0.70%) |
Oct 7, 2026 19d ago | 144 | $151.22 | awaiting T+20 | — | $138.60 (−8.35%) |
Sep 23, 2026 4w ago | Insider Cluster | $147.75 $141.39 | ▲ +4.30% | ▲ +3.88% | $138.60 (+6.19%) |
Sep 18, 2026 5w ago | Insider Cluster | $149.42 $142.11 | ▲ +4.89% | ▲ +3.98% | $138.60 (+7.24%) |
Sep 15, 2026 5w ago | Insider Cluster | $148.17 $139.73 | ▼ −5.70% | ▼ −7.76% | $138.60 (−6.46%) |
Aug 19, 2026 9w ago | Insider Cluster | $147.03 $141.90 | ▼ −3.49% | ▼ −3.62% | $138.60 (−5.73%) |
Aug 18, 2026 9w ago | 8-K | $146.03 $147.10 | ▲ +0.73% | ▲ +2.68% | $138.60 (−5.09%) |
Aug 13, 2026 10w ago | Press Release | $144.10 $143.68 | ▼ −0.29% | ▲ +1.46% | $138.60 (−3.82%) |
Aug 12, 2026 10w ago | 3 | $144.10 $143.68 | ▼ −0.29% | ▲ +1.46% | $138.60 (−3.82%) |
Aug 10, 2026 11w ago | 8-K | $137.19 $146.39 | ▲ +6.71% | ▲ +7.62% | $138.60 (+1.03%) |
US Market Status
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