Chan William, the Chief Product & AI Officer at Waystar Holding Corp., has reported a transaction involving 9,560 shares of common stock. This transaction, filed on October 6, 2026, is significant as it reflects the company's ongoing management of stockholder interests and obligations.

Waystar Holding Corp. is a technology company based in Lehi, Utah, specializing in services related to computer integrated systems design. The company is known for its innovative solutions in the tech sector, which is a competitive environment.

According to the filing, the transaction occurred on October 5, 2026, and was executed to cover tax obligations related to restricted stock units (RSUs) granted to Chan William on October 2, 2025. The filing notes, "The transaction represents shares of common stock withheld to pay taxes upon vesting of restricted stock units (RSUs) granted to the Reporting Person." Following this transaction, William retains ownership of 1,571,252 shares, including unvested RSUs.

This stock transaction may affect investors and stakeholders in Waystar Holding Corp., as it demonstrates the company's approach to managing equity compensation for its executives. The filing does not specify what happens next regarding further transactions or corporate actions.

Transaction Details

The transaction reported by Chan William involved the sale of 9,560 shares of common stock at a price of $26.07 per share. This sell-to-cover transaction was executed specifically to cover tax obligations incurred from the vesting of restricted stock units (RSUs) that were granted to him on October 2, 2025. The filing indicates that the number of shares withheld was determined based on the actual sale price of shares sold on the transaction date.

Company Overview

Waystar Holding Corp., incorporated in Delaware, operates in the services sector, specifically focusing on computer integrated systems design. The company is headquartered at 1550 Digital Drive, #300, Lehi, Utah, and has a fiscal year that ends on December 31. The business phone number is 844-492-9782.

“The transaction represents shares of common stock withheld to pay taxes upon vesting of restricted stock units (RSUs) granted to the Reporting Person.”

Ownership Structure

Following this transaction, Chan William retains a significant ownership stake in Waystar Holding Corp., with a total of 1,571,252 shares, which includes unvested RSUs. This level of ownership underscores his ongoing commitment to the company and aligns his interests with those of other shareholders.

Filing Context

This filing is categorized as Form 4 under the SEC Act of 1934, which is used to report changes in ownership of securities by insiders. The filing was made on October 6, 2026, and the transaction date was October 5, 2026. It is important to note that Chan William is identified as an officer of the company, holding the title of Chief Product & AI Officer.