---
schema_version: "secwatch.filing_event.v1"
accession: "0001388658-21-000137"
form_type: "8-K/A"
ticker: "IRTC"
cik: "0001388658"
company_name: "iRhythm Holdings, Inc."
filed_at: "2021-09-13T23:59:59+00:00"
generated_at: "2026-06-29T04:07:38.686448+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# iRhythm appoints Quentin Blackford as President and CEO, effective Oct 4, 2021

## Summary
- Quentin Blackford appointed President and CEO, effective October 4, 2021.
- Appointment fills CEO vacancy; previously announced in Original 8-K on Sept 13, 2021.
- Amendment corrects a sentence in the original Form 8-K disclosure.

## SEC filing metadata
- accession: 0001388658-21-000137
- form_type: 8-K/A
- ticker: IRTC
- cik: 0001388658
- company_name: iRhythm Holdings, Inc.
- filed_at: 2021-09-13T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1388658/000138865821000137/0001388658-21-000137-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1388658/000138865821000137/irtc-20210913.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001388658-21-000137
- JSON: https://secwatch.observer/filing/0001388658-21-000137.json
- Plain text: https://secwatch.observer/filing/0001388658-21-000137.txt

## Key facts
- Executive change
  Quentin Blackford was appointed as President and Chief Executive Officer at iRhythm Holdings, Inc..
  - Action: appointed
  - Role: President and Chief Executive Officer
  source text: On September 13, 2021, the Company issued a press release announcing the appointment of Mr. Blackford as the Company’s President and Chief Executive Officer effective October 4, 2021.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1388658/000138865821000137/0001388658-21-000137-index.htm

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