Waystar Holding Corp.: which funds bought and sold
Institutions that bought and sold Waystar Holding shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 180 institutions that filed 13F reports for both quarters added to or opened positions in Waystar Holding, and 159 cut or closed them. Together they added a net 4.9M shares, +2.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 4.2M shares (−8.4%); index fund managers were net buyers of 1.6M shares (+4.2%). 63 opened a new position and 72 sold out entirely.
Bought, Q2 2026 180 institutions, 63 of them new holders Sold, Q2 2026 159 institutions, 72 of them sold out
Net change, all compared +4.9M shares (+2.4%)
Net change, active managers −4.2M shares (−8.4%), 20 bought, 29 sold
Buyers versus sellers
180 bought 26 159 sold
Active managers and hedge funds 20 bought · 29 sold · −4.2M
Index fund managers 7 bought · 4 sold · +1.6M
Other institutions 153 bought · 126 sold · +7.5M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Bank Of Montreal | +1.7M +50.3% | 5.2M | $107M |
| Goldentree Asset Management LP | +1.7M +38.6% | 6.2M | $126M |
| Millennium Management LLC Hedge fund | +1.5M +72.9% | 3.7M | $75M |
| Greenvale Capital LLP | +1.5M New position | 1.5M | $30.8M |
| Price T Rowe Associates Inc Active manager | +1.2M +71.0% | 2.9M | $60.3M |
| Alta Fox Capital Management, LLC | +1.0M New position | 1.0M | $21.3M |
| Morgan Stanley | +1.0M +107.1% | 2.0M | $40.8M |
| Sunriver Management LLC | +855K New position | 855K | $17.6M |
| Systematic Financial Management LP | +848K New position | 848K | $17.4M |
| Blackrock, Inc. Index funds | +770K +4.6% | 17.4M | $358M |
| UBS Group AG | +731K +34.0% | 2.9M | $59.2M |
| Massachusetts Financial Services Co Active manager | +693K +43.8% | 2.3M | $46.7M |
| Longaeva Partners L.P. | +632K New position | 632K | $13M |
| Dimensional Fund Advisors LP | +614K +30.0% | 2.7M | $54.6M |
| Clarkston Capital Partners, LLC | +610K +64.1% | 1.6M | $32M |
| Balyasny Asset Management L.P. Hedge fund | +580K +761.0% | 656K | $13.5M |
| Bank Of America Corp | +518K +25.1% | 2.6M | $53M |
| Diamond Hill Capital Management, LLC (Investment Advisor) Active manager | +506K +31.6% | 2.1M | $43.3M |
| Oberweis Asset Management Inc/ Active manager | +422K +36.1% | 1.6M | $32.6M |
| USS Investment Management Ltd | +410K New position | 410K | $8.4M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Millennium Management LLC Hedge fund | +1.5M +72.9% | 3.7M | $75M |
| Price T Rowe Associates Inc Active manager | +1.2M +71.0% | 2.9M | $60.3M |
| Massachusetts Financial Services Co Active manager | +693K +43.8% | 2.3M | $46.7M |
| Balyasny Asset Management L.P. Hedge fund | +580K +761.0% | 656K | $13.5M |
| Diamond Hill Capital Management, LLC (Investment Advisor) Active manager | +506K +31.6% | 2.1M | $43.3M |
| Oberweis Asset Management Inc/ Active manager | +422K +36.1% | 1.6M | $32.6M |
| Qube Research & Technologies Ltd Hedge fund | +201K New position | 201K | $4.1M |
| Loomis Sayles & Co L P Active manager | +170K +34.5% | 663K | $13.6M |
| Winton Group Ltd Hedge fund | +170K New position | 170K | $3.5M |
| Wellington Management Group LLP Active manager | +149K +23.1% | 793K | $16.3M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Pointstate Capital LP Hedge fund | −2.7M −72.6% | 1.0M | $21.2M |
| Goldman Sachs Group Inc | −1.7M −66.4% | 880K | $18.1M |
| RTW Investments, LP Hedge fund | −1.6M Sold out | 0 | — |
| Arrowmark Colorado Holdings LLC | −1.6M −73.4% | 585K | $12M |
| Neuberger Berman Group LLC Active manager | −1.0M −22.2% | 3.6M | $74.6M |
| Artisan Partners Limited Partnership Active manager | −729K −16.5% | 3.7M | $75.5M |
| Sio Capital Management, LLC | −716K −43.6% | 926K | $19M |
| AQR Capital Management LLC Hedge fund | −665K −54.5% | 556K | $11.4M |
| Silvercrest Asset Management Group LLC | −601K Sold out | 0 | — |
| BAMCO Inc Active manager | −538K −23.1% | 1.8M | $36.7M |
| Jennison Associates LLC Active manager | −516K Sold out | 0 | — |
| Kingdon Capital Management, L.L.C. | −438K Sold out | 0 | — |
| Deutsche Bank Ag\ | −434K −72.5% | 165K | $3.4M |
| Renaissance Technologies LLC Hedge fund | −423K Sold out | 0 | — |
| Burkehill Global Management, LP Hedge fund | −400K Sold out | 0 | — |
| New York State Common Retirement Fund | −338K −89.4% | 40K | $823,253 |
| Seven Grand Managers, LLC | −300K Sold out | 0 | — |
| Adage Capital Partners Gp, L.L.C. Hedge fund | −274K −89.7% | 31K | $642,055 |
| Ghisallo Capital Management LLC Hedge fund | −250K −71.4% | 100K | $2.1M |
| Parkman Healthcare Partners LLC | −239K −54.0% | 204K | $4.2M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Pointstate Capital LP Hedge fund | −2.7M −72.6% | 1.0M | $21.2M |
| RTW Investments, LP Hedge fund | −1.6M Sold out | 0 | — |
| Neuberger Berman Group LLC Active manager | −1.0M −22.2% | 3.6M | $74.6M |
| Artisan Partners Limited Partnership Active manager | −729K −16.5% | 3.7M | $75.5M |
| AQR Capital Management LLC Hedge fund | −665K −54.5% | 556K | $11.4M |
| BAMCO Inc Active manager | −538K −23.1% | 1.8M | $36.7M |
| Jennison Associates LLC Active manager | −516K Sold out | 0 | — |
| Renaissance Technologies LLC Hedge fund | −423K Sold out | 0 | — |
| Burkehill Global Management, LP Hedge fund | −400K Sold out | 0 | — |
| Adage Capital Partners Gp, L.L.C. Hedge fund | −274K −89.7% | 31K | $642,055 |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Greenvale Capital LLP | 1.5M | $30.8M |
| Alta Fox Capital Management, LLC | 1.0M | $21.3M |
| Sunriver Management LLC | 855K | $17.6M |
| Systematic Financial Management LP | 848K | $17.4M |
| Longaeva Partners L.P. | 632K | $13M |
| USS Investment Management Ltd | 410K | $8.4M |
| Marathon Capital Management | 315K | $6.5M |
| Osterweis Capital Management Inc | 281K | $5.8M |
| Qube Research & Technologies LtdHedge fund | 201K | $4.1M |
| Winton Group LtdHedge fund | 170K | $3.5M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| RTW Investments, LPHedge fund | 1.6M | $39.3M |
| Silvercrest Asset Management Group LLC | 601K | $14.5M |
| Jennison Associates LLCActive manager | 516K | $12.4M |
| Kingdon Capital Management, L.L.C. | 438K | $10.6M |
| Renaissance Technologies LLCHedge fund | 423K | $10.2M |
| Burkehill Global Management, LPHedge fund | 400K | $9.6M |
| Seven Grand Managers, LLC | 300K | $7.2M |
| Next Century Growth Investors LLC | 217K | $5.2M |
| Lisanti Capital Growth, LLC | 187K | $4.5M |
| King Luther Capital Management CorpActive manager | 155K | $3.7M |
Who holds the shares
- Institutions reporting
- 302
- Ten largest holders
- 58.5% of 13F-reported shares
- Index fund managers
- 19.1% of 13F-reported shares
- Active managers and hedge funds
- 21.8% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 20 | 29 | 7 | 12 | −4.2M | −8.4% |
| Index fund managers | 7 | 4 | 0 | 1 | +1.6M | +4.2% |
| Other institutions | 153 | 126 | 56 | 59 | +7.5M | +6.6% |