| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Derby LuxCo S.a r.l. | 14% | -24% | $943,428,251 | -$294,490,057 | 24,879,437 | -24% | Derby LuxCo S.a r.l. | 30 Sep 2025 |
| CANADA PENSION PLAN INVESTMENT BOARD | 9.9% | -31% | $721,445,140 | -$225,198,272 | 19,025,452 | -24% | Canada Pension Plan Investment Board | 30 Sep 2025 |
| BlackRock, Inc. | 9.1% | $603,909,028 | 15,925,871 | BlackRock, Inc. | 30 Sep 2025 | |||
| FMR LLC | 7.3% | $456,833,318 | 13,949,109 | FMR LLC | 31 Dec 2025 | |||
| VANGUARD GROUP INC | 7% | +36% | $466,029,595 | +$122,086,701 | 12,289,810 | +35% | The Vanguard Group | 30 Sep 2025 |
| BCPE Derby Investor, LP | 5.9% | -33% | $429,622,224 | -$156,086,076 | 11,329,700 | -27% | BCPE Derby (DE) SPV, LP | 30 Sep 2025 |
| ADVENT INTERNATIONAL, L.P. | 5.8% | $419,388,052 | 11,059,899 | ADVENT INTERNATIONAL, L.P. | 01 Oct 2025 |
As of 31 Dec 2025, 297 institutional investors reported holding 199,298,593 shares of Waystar Holding Corp. - COMMON STOCK (WAY). This represents 104% of the company’s total 191,083,684 outstanding shares.
The largest institutional shareholders of Waystar Holding Corp. - COMMON STOCK (WAY) together control 83% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| EQT Fund Management S.a r.l. | 13% | 24,879,437 | 0% | 73% | $814,801,562 |
| CANADA PENSION PLAN INVESTMENT BOARD | 10% | 19,025,452 | 0% | 0.42% | $623,083,553 |
| BlackRock, Inc. | 8.6% | 16,466,240 | +1.7% | 0.01% | $539,269,361 |
| FMR LLC | 7.3% | 14,037,109 | +190% | 0.02% | $459,715,319 |
| Bain Capital Investors LLC | 6.9% | 13,243,539 | 0% | 9.4% | $433,725,902 |
| VANGUARD GROUP INC | 6.5% | 12,330,872 | +0.33% | 0.01% | $403,836,060 |
| Advent International, L.P. | 5.8% | 11,059,899 | 7.5% | $362,211,692 | |
| NEUBERGER BERMAN GROUP LLC | 2.9% | 5,470,932 | +4.7% | 0.13% | $179,173,023 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 2.8% | 5,282,220 | +0.36% | 0.48% | $172,992,705 |
| STATE STREET CORP | 2.2% | 4,134,052 | +4% | 0% | $135,390,203 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 3,398,053 | +7.1% | 0.01% | $111,300,318 |
| Artisan Partners Limited Partnership | 1.7% | 3,164,546 | +26% | 0.16% | $103,638,894 |
| Invesco Ltd. | 1.6% | 3,113,123 | -0.55% | 0.02% | $101,954,779 |
| MILLENNIUM MANAGEMENT LLC | 1.5% | 2,914,618 | +38% | 0.07% | $95,453,740 |
| GOLDMAN SACHS GROUP INC | 1.5% | 2,827,474 | +33% | 0.01% | $92,599,774 |
| PointState Capital LP | 1.5% | 2,773,241 | +32% | 1.6% | $90,823,643 |
| UBS Group AG | 1.2% | 2,310,592 | -34% | 0.01% | $75,671,888 |
| ArrowMark Colorado Holdings LLC | 1% | 1,923,110 | -8.8% | 1.4% | $62,981,853 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 0.84% | 1,611,445 | +25% | 0.01% | $52,776,000 |
| VOYA INVESTMENT MANAGEMENT LLC | 0.84% | 1,605,830 | +13% | 0.05% | $52,590,933 |
| Thrivent Financial for Lutherans | 0.73% | 1,399,429 | +59% | 0.08% | $45,831,000 |
| BAMCO INC /NY/ | 0.73% | 1,393,634 | 0.12% | $45,641,513 | |
| NORGES BANK | 0.71% | 1,362,650 | 0% | $44,626,788 | |
| BANK OF AMERICA CORP /DE/ | 0.67% | 1,276,126 | -28% | 0% | $41,793,127 |
| Holocene Advisors, LP | 0.62% | 1,189,722 | +2561% | 0.08% | $38,963,396 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 199,298,593 | $6,526,440,841 | +$372,103,769 | $32.75 | 297 |
| 2025 Q3 | 185,871,340 | $7,048,192,193 | +$628,862,706 | $37.92 | 297 |
| 2025 Q2 | 144,435,263 | $5,902,993,666 | +$348,322,333 | $40.87 | 265 |
| 2025 Q1 | 136,310,447 | $5,093,163,170 | +$382,758,269 | $37.36 | 224 |
| 2024 Q4 | 125,751,342 | $4,614,791,989 | +$79,919,664 | $36.70 | 163 |
| 2024 Q3 | 124,155,064 | $3,463,000,695 | -$34,550,044 | $27.89 | 117 |
| 2024 Q2 | 123,432,577 | $2,653,832,174 | +$2,653,832,173 | $21.50 | 92 |