Waystar Holding CORP Schedule 13G passive stakes

FMR LLC and Abigail P. Johnson have jointly filed a Schedule 13G, disclosing beneficial ownership of 10.2% of Waystar Holding Corp's common stock as of July 31, 2026.

The Vanguard Group has filed an amended Schedule 13G, reporting 0% beneficial ownership in Waystar Holding Corp following an internal realignment.

FMR LLC and Abigail P. Johnson have reported a beneficial ownership of 7.3% in Waystar Holding Corp. as of December 31, 2025.

Bain Capital-affiliated entities, BCPE Derby Investor, LP and BCPE Derby (DE) SPV, LP, reported a combined beneficial ownership of 6.9% in Waystar Holding Corp. as of September 30, 2025.

Canada Pension Plan Investment Board and its subsidiary reported a continued 9.9% beneficial ownership in Waystar Holding Corp. common stock.

Derby LuxCo S.a r.l. and EQT Fund Management S.a r.l. jointly report beneficial ownership of 14.2% of Waystar Holding Corp.'s common stock as of September 30, 2025.

The Vanguard Group has reported a 7.05% beneficial ownership stake in Waystar Holding Corp, holding over 12 million shares.

BlackRock, Inc. has disclosed a 9.1% beneficial ownership stake in Waystar Holding Corp., holding over 15.9 million shares of common stock.

Canada Pension Plan Investment Board and its subsidiary report beneficial ownership of 14.3% of Waystar Holding Corp.'s common stock.

Bain Capital affiliates, BCPE Derby Investor, LP and BCPE Derby (DE) SPV, LP, collectively report a 10.3% beneficial ownership in Waystar Holding Corp. common stock.

Derby LuxCo S.a r.l. and EQT Fund Management S.a r.l. have jointly filed an amendment disclosing a beneficial ownership of 18.7% in Waystar Holding Corp.

The Vanguard Group has reported a beneficial ownership of 5.24% in Waystar Holding Corp.'s common stock, totaling over 9 million shares.

Bain Capital-affiliated entities, BCPE Derby Investor, LP and BCPE Derby (DE) SPV, LP, have disclosed a collective beneficial ownership of 12.6% of Waystar Holding Corp.'s common stock as of March 31, 2025, according to an amended Schedule 13G filing.

Derby LuxCo S.a r.l. and EQT Fund Management S.a r.l. have jointly filed an amendment to their Schedule 13G, revealing beneficial ownership of 22.4% of Waystar Holding Corp.'s common stock as of March 31, 2025.

Canada Pension Plan Investment Board (CPPIB) and its subsidiary have filed an amended Schedule 13G, disclosing a beneficial ownership of 17.2% in Waystar Holding Corp.'s common stock.

Bain Capital affiliates, BCPE Derby Investor, LP and BCPE Derby (DE) SPV, LP, have filed an amended Schedule 13G, revealing a combined beneficial ownership of 16.3% of Waystar Holding Corp.'s common stock as of December 31, 2024.