---
schema_version: "secwatch.filing_event.v1"
accession: "0001388658-25-000026"
form_type: "8-K"
ticker: "IRTC"
cik: "0001388658"
company_name: "iRhythm Holdings, Inc."
filed_at: "2025-02-20T23:59:59+00:00"
generated_at: "2026-05-26T08:25:40.463133+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# iRhythm Q4 revenue up 24% to $164.3M; net loss narrows to $1.3M; guides FY2025 revenue $675-685M

## Summary
- Q4 revenue $164.3M (+24% YoY); gross margin 70.0% (+410bps). Net loss $1.3M vs $38.7M loss in Q4 2023.
- Full year 2024 revenue $591.8M (+20.1%); net loss $113.3M vs $123.4M in 2023.
- Adjusted EBITDA Q4 $19.3M (improvement of $16.9M); FY2024 adj EBITDA $(7.7)M.
- Cash and marketable securities $535.6M at Dec 31, 2024; positive cash flow for three consecutive quarters.
- 2025 guidance: revenue $675-685M; adj EBITDA margin 7-8% of revenue.

## SEC filing metadata
- accession: 0001388658-25-000026
- form_type: 8-K
- ticker: IRTC
- cik: 0001388658
- company_name: iRhythm Holdings, Inc.
- filed_at: 2025-02-20T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1388658/000138865825000026/0001388658-25-000026-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1388658/000138865825000026/irtc-20250220.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001388658-25-000026
- JSON: https://secwatch.observer/filing/0001388658-25-000026.json
- Plain text: https://secwatch.observer/filing/0001388658-25-000026.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.