---
schema_version: "secwatch.filing_event.v1"
accession: "0001410578-25-002032"
form_type: "8-K"
ticker: "WAY"
cik: "0001990354"
company_name: "Waystar Holding Corp."
filed_at: "2025-09-11T23:59:59+00:00"
generated_at: "2026-05-17T06:54:52.005764+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Waystar enters underwriting agreement for secondary offering of 18M shares by selling stockholders

## Summary
- Secondary offering of 18,000,000 shares of common stock by selling stockholders; company sells no shares.
- Company will not receive any proceeds from the offering.
- Underwriting agreement with J.P. Morgan Securities LLC dated September 10, 2025.
- Offering expected to close on September 12, 2025, subject to customary conditions.
- Shares offered under Company's Form S-3 registration statement filed July 14, 2025.

## SEC filing metadata
- accession: 0001410578-25-002032
- form_type: 8-K
- ticker: WAY
- cik: 0001990354
- company_name: Waystar Holding Corp.
- filed_at: 2025-09-11T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1990354/000141057825002032/0001410578-25-002032-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1990354/000141057825002032/tm2525858d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001410578-25-002032
- JSON: https://secwatch.observer/filing/0001410578-25-002032.json
- Plain text: https://secwatch.observer/filing/0001410578-25-002032.txt

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