Waystar Holding Corp. (WAY) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, Waystar Holding's top three insider holders are Luxco S.A R.L. Derby (TenPercentOwner, 24.88Mn shares), Paul G Moskowitz (Director, 13.24Mn shares), William Chan (Chief Product Ai Officer, 1.58Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Luxco S.A R.L. Derby 0 24,879,437 16 Sep, 2025
Pension Plan Investment Board Canada 0 19,025,452 16 Sep, 2025
Paul G Moskowitz 0 13,243,539 16 Sep, 2025
William Chan Chief Product Ai Officer 1,580,812 0 11 Mar, 2026
Matthew J. Hawkins Chief Executive Officer 974,570 0 11 Mar, 2026
T. Craig Bridge Chief Transformation Officer 670,768 0 11 Mar, 2026
Christopher L. Schremser Chief Technology Officer 509,784 0 11 Mar, 2026
Iii Eric L. (Ric) Sinclair Chief Business Officer 474,826 0 22 Jan, 2026
Kimberly S. Wittman Chief People Officer 272,964 0 11 Mar, 2026
Melissa F. (Missy) Miller Chief Marketing Officer 254,964 0 11 Mar, 2026
Gregory R Packer Chief Legal Officer 196,964 0 11 Mar, 2026
Matthew R. A. Heiman See Remarks 86,956 0 12 Jun, 2024
Robert Demichiei 36,896 0 16 Jun, 2025
Priscilla Hung 13,829 0 16 Jun, 2025
Vivian E. Riefberg 13,829 0 16 Jun, 2025
Aashima Gupta 5,134 0 16 Jun, 2025
Michael F Roman 5,134 0 16 Jun, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
09 Mar, 2026 Christopher L. Schremser Common Stock A 87,413 $0.00 509,784 D A
09 Mar, 2026 Matthew J. Hawkins Common Stock A 257,096 $0.00 974,570 D A
09 Mar, 2026 Gregory R Packer Common Stock A 65,817 $0.00 196,964 D A
09 Mar, 2026 Melissa F. (Missy) Miller Common Stock A 61,703 $0.00 254,964 D A
09 Mar, 2026 T. Craig Bridge Common Stock A 87,413 $0.00 670,768 D A
09 Mar, 2026 William Chan Common Stock A 82,271 $0.00 1,580,812 D A
09 Mar, 2026 Kimberly S. Wittman Common Stock A 61,703 $0.00 272,964 D A
20 Jan, 2026 Iii Eric L. (Ric) Sinclair Common Stock A 7,562 $18.19 482,388 D M
20 Jan, 2026 Iii Eric L. (Ric) Sinclair Common Stock A 32,663 $4.14 515,051 D M
20 Jan, 2026 Iii Eric L. (Ric) Sinclair Common Stock D 40,225 $30.08 474,826 D S
20 Jan, 2026 Iii Eric L. (Ric) Sinclair Stock Options (right to buy) D 7,562 $0.00 173,938 D M
20 Jan, 2026 Iii Eric L. (Ric) Sinclair Stock Options (right to buy) D 32,663 $0.00 6,141 D M
22 Dec, 2025 Iii Eric L. (Ric) Sinclair Common Stock A 9,701 $4.14 484,527 D M
22 Dec, 2025 Iii Eric L. (Ric) Sinclair Common Stock D 9,701 $32.82 474,826 D S
22 Dec, 2025 Iii Eric L. (Ric) Sinclair Stock Options (right to buy) D 9,701 $0.00 38,804 D M
10 Dec, 2025 Christopher L. Schremser Common Stock A 8,623 $4.14 430,994 D M
10 Dec, 2025 Christopher L. Schremser Common Stock D 8,623 $30.41 422,371 D S
10 Dec, 2025 Christopher L. Schremser Stock Options (right to buy) D 8,623 $0.00 68,994 D M
25 Nov, 2025 Melissa F. (Missy) Miller Common Stock A 3,400 $18.19 196,661 D M
25 Nov, 2025 Melissa F. (Missy) Miller Common Stock D 3,400 $37.00 193,261 D S