Gregory R. Packer - 01 Sep 2026 Form 4 Insider Report for Waystar Holding Corp. (WAY)

Reporting relationship: Chief Legal officer
Issuer ticker: WAY
Reported as of: 01 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 03 Sep 2026, 13:17:25 UTC
Prior SEC filing: 03 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Gregory R Packer

Key filing fact

Gregory R. Packer filed Form 4 for Waystar Holding Corp. (WAY) on 03 Sep 2026.

Key facts

This page summarizes Gregory R. Packer's Form 4 filing for Waystar Holding Corp. (WAY).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 03 Sep 2026, 13:17.

Change

Previous filing in this sequence was filed on 03 Aug 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001735839 Primary reporting owner

PACKER GREGORY R

Relationship: Chief Legal officer
Address: 1550 DIGITAL DRIVE, #300, LEHI
Signature: /s/ Gregory R Packer
Signature date: 03 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WAY transaction

Common Stock

Tax liability

Transaction value
Shares: -6,754
Change %: -1.6%
Price: $25.73^*
Shares after: 418,255
Date: 01 Sep 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The transaction represents shares of common stock withheld to pay taxes upon vesting of restricted stock units (RSUs) granted to the Reporting Person on August 18, 2025. The number of shares withheld was determined based on the actual sale price of shares sold on September 1, 2026 pursuant to a "sell-to-cover" transaction. The vesting schedule for this RSU grant, as originally reported on the Reporting Person's prior Form 4, was modified by the Talent & Compensation Committee. The original vesting schedule provided for 40% vesting on the third anniversary of the Vesting Commencement Date and 60% vesting on the fourth anniversary of the Vesting Commencement Date. The modified vesting schedule provides for 25% vesting on September 1, 2026, and 25% vesting on each of the second, third, and fourth anniversaries of the Vesting Commencement Date.

Footnote F2

Includes unvested RSUs.