secwatch.observer — SEC 8-K summary
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Issuer:     Duolingo, Inc. (DUOL)
CIK:        0001562088
Form:       8-K
Filed at:   2026-08-19T01:11:54+00:00
Accession:  0001628280-26-057818
Event type: other_material
Sentiment:  positive
Materiality: 0.75
Item codes: 7.01
LLM model:  deepseek-v4-flash:cloud@v2

Duolingo inadvertently shows 27.4% DAU growth estimate for Aug 17, 2026
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- On Aug 18, 2026, investor meeting screen displayed estimated DAU growth of 27.4% YoY for Aug 17, 2026.
- Similar estimated growth rates for prior days in August were also shown on the screen.
- Company has not completed review/validation; data not indicative of Q3 2026 results.
- No updated guidance provided; Q2 2026 guidance from Aug 5, 2026 remains in effect.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1562088/000162828026057818/0001628280-26-057818-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1562088/000162828026057818/duol-20260818.htm
  HTML page:      https://secwatch.observer/filing/0001628280-26-057818

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer