Heidi Miller - 02 Mar 2026 Form 4 Insider Report for Waystar Holding Corp. (WAY)

Role: Director
Signature: /s/ Gregory R. Packer, as Attorney-in-Fact
Issuer symbol: WAY
Transactions as of: 02 Mar 2026
Net transactions value: +$188,986
Form type: 4
Filing time: 03 Mar 2026, 16:12:16 UTC
Previous filing: 16 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
MILLER HEIDI	Director	1550 DIGITAL DRIVE, #300, LEHI	/s/ Gregory R. Packer, as Attorney-in-Fact	03 Mar 2026	0001199930

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WAY	Common Stock	Purchase	$188,986	+7,200		$26.25	7,200	02 Mar 2026	By Family Trusts	F1
holding	WAY	Common Stock						31,614	02 Mar 2026	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The price reported in Column 4 is a weighted average price. These shares of common stock, par value $0.01 per share ("Common Stock") of Waystar Holding Corp. (the "Issuer") were purchased in multiple transactions ranging from $26.247 to $26.248 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price in the range set forth in this footnote.
F2	Includes unvested RSUs.

Content

The price reported in Column 4 is a weighted average price. These shares of common stock, par value $0.01 per share ("Common Stock") of Waystar Holding Corp. (the "Issuer") were purchased in multiple transactions ranging from $26.247 to $26.248 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price in the range set forth in this footnote.

Includes unvested RSUs.