---
schema_version: "secwatch.filing_event.v1"
accession: "0001636422-26-000111"
form_type: "8-K"
ticker: "HCAT"
cik: "0001636422"
company_name: "Health Catalyst, Inc."
filed_at: "2026-09-14T20:25:00+00:00"
generated_at: "2026-09-14T20:26:15.739652+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Health Catalyst appoints Tami Reller to board; Simeon Kohl named CEO

## Summary
- Tami Reller appointed to Board effective Oct 1, 2026; board expands from 6 to 7 directors.
- Reller will serve as Audit Committee chair and on Compensation Committee, replacing Hoggard Green and Spencer.
- Reller previously CEO of Duly Health and Care (2022-2023); held exec roles at UnitedHealth Group and Microsoft.
- Simeon Kohl named CEO and President effective Sept 14, 2026, per press release.
- Company cites 18 years of results and $2.8B in validated outcomes as it becomes AI-forward.

## SEC filing metadata
- accession: 0001636422-26-000111
- form_type: 8-K
- ticker: HCAT
- cik: 0001636422
- company_name: Health Catalyst, Inc.
- filed_at: 2026-09-14T20:25:00+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1636422/000163642226000111/0001636422-26-000111-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1636422/000163642226000111/hcat-20260911.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001636422-26-000111
- JSON: https://secwatch.observer/filing/0001636422-26-000111.json
- Plain text: https://secwatch.observer/filing/0001636422-26-000111.txt

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