Waystar director granted 9,303 RSUs

MILLER HEIDI reported acquisition or exercise transactions in this Form 4 filing.

The filer has since corrected this document, so the figures below are the ones originally reported and some of them may have changed. Read the amended Form 4/A for what the company says now.

Rhea-AI Filing Summary

MILLER HEIDI reported acquisition or exercise transactions in this Form 4 filing.

Waystar Holding Corp. director Heidi Miller received a grant of 9,303 shares of Common Stock in the form of restricted stock units at a price of $0.00 per share. These RSUs vest on the earlier of June 1, 2027 or the first regularly scheduled annual stockholder meeting following the grant date. After this award, Miller holds 40,917 shares of Common Stock directly, including unvested RSUs, giving her a larger equity stake aligned with the company’s long-term performance.

Insider Trade Summary

Grant/Award: 9,303 shares

Grant/Award 1 txn

Insider MILLER HEIDI

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	9,303	$0.00	$0.00

Holdings After Transaction: Common Stock — 40,917 shares (Direct)

Footnotes (2)

1. F1. Reflects a grant of restricted stock units ("RSUs") which vest on the earlier of (i) June 1, 2027 and (ii) the first regularly scheduled annual meeting of the stockholders following the grant date. Each RSU represents a contingent right to receive one share of Common Stock upon settlement.
2. F2. Includes unvested RSUs.

Key Figures

RSU grant size: 9,303 shares Grant price: $0.00 per share Post-grant holdings: 40,917 shares +1 more

4 metrics

RSU grant size 9,303 shares Restricted stock units of Common Stock granted to director

Grant price $0.00 per share RSU award recorded at zero purchase price

Post-grant holdings 40,917 shares Total Common Stock held directly after transaction, includes unvested RSUs

Vesting date June 1, 2027 Latest possible vesting date for RSUs, or earlier annual meeting

Key Terms

restricted stock units ("RSUs"), contingent right, Common Stock

3 terms

restricted stock units ("RSUs") financial

"Reflects a grant of restricted stock units ("RSUs") which vest on the earlier of"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

contingent right financial

"Each RSU represents a contingent right to receive one share of Common Stock"

Common Stock financial

"Each RSU represents a contingent right to receive one share of Common Stock upon settlement."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Waystar (WAY) disclose for director Heidi Miller?

Waystar disclosed that director Heidi Miller received a grant of 9,303 restricted stock units of Common Stock at $0.00 per share. This is a stock-based award, not an open-market purchase or sale, increasing her equity exposure to the company.

When do Heidi Miller’s new Waystar (WAY) RSUs vest?

The 9,303 restricted stock units vest on the earlier of June 1, 2027 or the first regularly scheduled annual meeting of stockholders after the grant date. Vesting must occur before the RSUs convert into actual shares of Common Stock.

How many Waystar (WAY) shares does Heidi Miller hold after this Form 4?

Following the grant, Heidi Miller directly holds 40,917 shares of Waystar Common Stock, including unvested restricted stock units. This total reflects her entire reported direct position after the award, as shown in the Form 4 filing data.

Was Heidi Miller’s Waystar (WAY) RSU grant a market purchase?

No. The filing shows a transaction code "A" at $0.00 per share, indicating a grant or award rather than an open-market purchase. It is a compensation-related stock award, not a transaction executed on a stock exchange.

What does each Waystar (WAY) RSU granted to Heidi Miller represent?

Each restricted stock unit represents a contingent right to receive one share of Waystar Common Stock upon settlement after vesting. Until vesting and settlement, the RSUs are not actual shares and generally cannot be sold or transferred like regular stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/03/2026 - 06:24 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MILLER HEIDI

(Last) (First) (Middle)

1550 DIGITAL DRIVE, #300

(Street)

LEHI UTAH 84043

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Waystar Holding Corp. [ WAY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/03/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/03/2026		A		9,303(1)	A	$0	40,917(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Reflects a grant of restricted stock units ("RSUs") which vest on the earlier of (i) June 1, 2027 and (ii) the first regularly scheduled annual meeting of the stockholders following the grant date. Each RSU represents a contingent right to receive one share of Common Stock upon settlement.

2. Includes unvested RSUs.

Remarks:

	/s/ Gregory R. Packer, as Attorney-in-Fact	06/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)