Riefberg Vivian E. 4

What Happened

• Vivian E. Riefberg, a director of Waystar Holding Corp. (WAY), received an award of 9,303 restricted stock units (RSUs) on 2026-06-03. The grant is recorded at $0.00 (no cash purchase). Each RSU is a contingent right to one share of common stock upon settlement.

Key Details

• Transaction date: 2026-06-03; Transaction type: Award/Grant (code A).
• Amount: 9,303 RSUs granted; reported acquisition price $0.00.
• Vesting: RSUs vest on the earlier of (i) June 1, 2027 or (ii) the first regularly scheduled annual meeting of stockholders following the grant date (Footnote F1).
• Footnote F2 notes that reported holdings include unvested RSUs.
• Shares owned after the transaction: not specified in the provided filing.
• Filing: Reported on 2026-06-03 (same day as the transaction), indicating a timely filing in this record.

Context

• This is a standard equity compensation award to a director, not an open-market purchase or sale. RSU grants are common for aligning long-term incentives; they represent a future right to receive shares if vesting conditions are met, and do not reflect an immediate cash investment or sale.