InsiderTrades

Form 4 for WAY Waystar Holding Corp.

Accepted 2025-08-28 00:00:00 ET · period of report 2025-06-06 · accession 0001998251-25-000006 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-08-28 2025-08-26 WAY Miller Melissa F. (Missy) CMO M - OptEx $18.19 +3,400 196.7K +2% +$61.8K
D 2025-08-28 2025-06-06 WAY Miller Melissa F. (Missy) CMO F - Tax $40.55 -2,623 193.3K -1% -$106.4K
D 2025-08-28 2025-08-26 WAY Miller Melissa F. (Missy) CMO S - Sale+OE $37.01 -3,400 193.3K -2% -$125.8K
D 2025-08-28 2025-08-26 WAY Miller Melissa F. (Missy) CMO M - OptEx $0.00 -3,400 32.1K -10% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-08-26 M A 3,400 $18.19 196,661 D — — (F3) Includes unvested RSUs. (F2) These transactions occurred automatically pursuant to a plan adopted by the Reporting Person on November 20, 2024 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
2 Common Common Stock 2025-06-06 F D 2,623 $40.55 193,261 D — — (F1) This transaction was not timely filed. The transaction represents shares of common stock withheld to pay taxes upon vesting of Non-Qualified Stock Options granted to the Reporting Person on June 6, 2024. The number of shares withheld was determined on June 6, 2025, based on the closing price of WAY common stock on that date. In addition, the total number of shares beneficially owned following the reported transaction reflects a correction to prior filings to account for an earlier misclassification of an option exercise. The ending balance reported herein is accurate and reflects the Reporting Person's current holdings.
3 Common Common Stock 2025-08-26 S D 3,400 $37.01 193,261 D — — (F4) 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 sold in multiple transactions ranging from $37.00 to $37.03, 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. (F3) Includes unvested RSUs. (F2) These transactions occurred automatically pursuant to a plan adopted by the Reporting Person on November 20, 2024 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
4 Derivative Stock Options (right to buy) 2025-08-26 M D 3,400 $0.00 32,150 D $18.19 · — to 2030-08-17 3,400 Common Stock (F2) These transactions occurred automatically pursuant to a plan adopted by the Reporting Person on November 20, 2024 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). (F5) Options granted August 17, 2020 of which 50% of the option vests in five substantially equal annual installments commencing on August 17, 2021 and the remaining 50% of the option vests upon achievement of certain specified performance-based vesting criteria.