---
schema_version: "secwatch.filing_event.v1"
accession: "0001388658-24-000165"
form_type: "8-K"
ticker: "IRTC"
cik: "0001388658"
company_name: "iRhythm Holdings, Inc."
filed_at: "2024-10-30T23:59:59+00:00"
generated_at: "2026-05-30T08:08:44.557634+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# iRhythm Q3 revenue $147.5M (+18% YoY); gross margin 68.8% up 260 bps

## Summary
- Revenue $147.5M, up 18% YoY; gross profit $101.5M (+23%); gross margin 68.8% vs 66.2%
- Record quarterly registration volume; record new account openings in US; UK billable registrations >10,000
- FDA 510(k) clearance for Zio AT updates; commercial launch in Austria, Netherlands, Switzerland, Spain; Japan PMDA approval
- Technology license agreement with BioIntelliSense for multi-sensor capabilities; recognized $32.1M IPR&D charge
- Unrestricted cash $522.0M at Sep 30; cumulative one million patients registered for Zio monitor

## SEC filing metadata
- accession: 0001388658-24-000165
- form_type: 8-K
- ticker: IRTC
- cik: 0001388658
- company_name: iRhythm Holdings, Inc.
- filed_at: 2024-10-30T23:59:59+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/1388658/000138865824000165/0001388658-24-000165-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1388658/000138865824000165/irtc-20241030.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001388658-24-000165
- JSON: https://secwatch.observer/filing/0001388658-24-000165.json
- Plain text: https://secwatch.observer/filing/0001388658-24-000165.txt

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