Waystar (WAY) CTO receives 87,413 RSUs, holdings rise to 509,784 shares

Rhea-AI Filing Summary

Schremser Christopher L. reported acquisition or exercise transactions in this Form 4 filing.

Waystar Holding Corp. reported that Chief Technology Officer Christopher L. Schremser received a grant of 87,413 restricted stock units of Common Stock. The RSUs vest in four equal annual installments from the grant date through March 1, 2030, with each unit delivering one share upon settlement. Following this equity award, Schremser beneficially owns 509,784 shares of Common Stock, including unvested RSUs, all held directly as part of his compensation rather than an open-market purchase.

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

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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^*

Schremser Christopher L.

(Last) (First) (Middle)

1550 DIGITAL DRIVE, #300

(Street)

LEHI UT 84043

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2026

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

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

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

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	03/09/2026		A		87,413(1)	A	$0	509,784(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 vests in four equal annual installments from the initial grant date through March 1, 2030. Each RSU represents a contingent right to receive one share of common stock, $0.01 par value per share (the "Common Stock") upon settlement.

2. Includes unvested RSUs.

Remarks:

	/s/ Gregory R. Packer, as Attorney-in-Fact	03/11/2026
	** 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.

FAQ

What did Waystar (WAY) disclose about CTO Christopher Schremser’s latest equity award?

Waystar disclosed that CTO Christopher L. Schremser received 87,413 restricted stock units of Common Stock as a compensation grant. These RSUs vest in four equal annual installments through March 1, 2030, with each RSU representing one share of Common Stock upon settlement.

How many Waystar (WAY) shares did the CTO hold after the reported Form 4 transaction?

After the grant, CTO Christopher L. Schremser beneficially owned 509,784 shares of Waystar Common Stock. This total includes both vested and unvested restricted stock units, all held directly, showing his overall equity stake following the March 2026 compensation award.

Is the Waystar (WAY) CTO’s 87,413-unit award an open-market stock purchase?

The 87,413 units are a grant of restricted stock units, not an open-market purchase. The transaction price is listed as zero, indicating a compensation-related award where each RSU converts into one share of Common Stock upon vesting and settlement over time.

Over what period do the Waystar (WAY) CTO’s new RSUs vest?

The restricted stock units granted to the Waystar CTO vest in four equal annual installments from the initial grant date through March 1, 2030. This creates a multi-year vesting schedule designed to retain and incentivize the executive over the long term.

What does each restricted stock unit granted to the Waystar (WAY) CTO represent?

Each RSU granted to the Waystar CTO represents a contingent right to receive one share of Common Stock upon settlement. As the units vest over time, they can be settled into actual shares, incrementally increasing the executive’s delivered share ownership.