secwatch.observer — SEC 8-K summary
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Issuer:     iRhythm Holdings, Inc. (IRTC)
CIK:        0001388658
Form:       8-K
Filed at:   2025-05-01T23:59:59+00:00
Accession:  0001388658-25-000105
Event type: earnings
Sentiment:  positive
Materiality: 0.85
Item codes: 2.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

iRhythm Q1 revenue up 20% to $158.7M; raises FY 2025 guidance
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- Revenue $158.7M (+20.3% YoY); gross margin 68.8% (+250 bps).
- Net loss narrowed to $30.7M ($0.97 diluted EPS) from $45.7M ($1.47) last year.
- Adjusted net loss $30.3M ($0.95 diluted EPS) vs $38.1M ($1.23) in Q1 2024.
- Cash $520.6M; raised FY25 revenue guidance to $690–700M and adj. EBITDA margin to 7.5–8.5%.
- Operational: Zio AT strength, Japan commercial launch, studies showing LTCM superiority.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1388658/000138865825000105/0001388658-25-000105-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1388658/000138865825000105/irtc-20250501.htm
  HTML page:      https://secwatch.observer/filing/0001388658-25-000105

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