| 1 | Mozart Holdco Inc. 10% Owner | 2026-08-07 16:30:12 | 467,541,312 0 | 467,541,312 | Form 4 |
| 2 | TC Group VII S1 L.L.C. TC Group VII S1 L.P. TC Group VIII L.L.C. TC Group VIII L.P. TC Group VII Lux GP S.a.r.l. TC Group VIII Lux GP S.a.r.l. CPEP GP LLC 10% Owner | 2025-12-22 16:30:31 | 0 223,667,896 | 223,667,896 | Form 4 |
| 3 | Carlyle Group Inc. Carlyle Holdings I GP Inc. Carlyle Holdings I GP Sub L.L.C. Carlyle Holdings I L.P. CG Subsidiary Holdings L.L.C. TC Group LLC TC Group Sub L.P. TC Group VII S1 L.L.C. TC Group VII S1 L.P. 10% Owner | 2026-05-15 16:30:21 | 187,083,713 0 | 187,083,713 | Form 13G |
| 4 | Hellman & Friedman Capital Partners X (Parallel) L.P. HFCP X (Parallel-A) L.P. Mend Partners II L.P. Mend Investment Holdings I L.P. Hellman & Friedman Investors X L.P. Mend Partners GP LLC Mend Investment Holdings GP LLC Hellman & Friedman Capital Partners X L.P. H&F Corporate Investors X Ltd. 10% Owner | 2026-08-11 18:30:50 | 153,327,675 0 | 153,327,675 | Form 13G |
| 5 | BCP 8 Holdings Mozart Manager L.L.C. BMA VIII L.L.C. Blackstone Holdings II L.P. Blackstone Holdings I/II GP L.L.C. Blackstone Inc. Blackstone Group Management L.L.C. SCHWARZMAN STEPHEN A 10% Owner | 2026-08-07 16:30:03 | 153,327,675 0 | 153,327,675 | Form 13G |
| 6 | Carlyle Mozart Coinvestment Holdings L.P. Carlyle Mozart Coinvestment UNLV Holdco L.P. CP Circle UNLV Holdco L.P. CPEP GP LLC CPEP Circle Holdings L.P. 10% Owner | 2026-03-12 16:30:18 | 0 127,567,724 | 127,567,724 | Form 4 |
| 7 | CP Circle ML Holdco GP LLC CP Circle ML-1 Holdco GP LLC CP Circle ML-1 Holdco L.P. CP Circle ML-2 Holdco L.P. CP Circle ML-3 Holdco L.P. CP Circle ML-4 Holdco L.P. CP Circle ML-5 Holdco L.P. CP Circle ML-6 Holdco L.P. CP Circle ML-7 Holdco L.P. 10% Owner | 2026-03-12 16:30:16 | 0 127,567,724 | 127,567,724 | Form 4 |
| 8 | TC Group Cayman Investment Holdings L.P. Carlyle Holdings II GP L.L.C. Carlyle Holdings II L.L.C. TC Group Cayman Investment Holdings Sub L.P. TC Group VII L.L.C. TC Group VII L.P. 10% Owner | 2026-03-12 16:30:12 | 0 127,567,724 | 127,567,724 | Form 4 |
| 9 | GIC Private Ltd GIC Special Investments Pte Ltd Hux Investment Pte. Ltd. 10% Owner | 2026-08-17 16:15:04 | 22,802,482 91,555,447 | 114,357,929 | Form 4 |
| 10 | TC Group VIII L.L.C. TC Group VIII L.P. TC Group VII Lux GP S.a.r.l. CP VII Circle AIF Holdings S.C.Sp. CP VII Circle Holdings L.P. CP VII Circle Holdings-A L.P. CP VIII Circle AIF Holdings S.C.Sp. CP VIII Circle Holdings L.P. Former 10% Owners | 2026-01-21 16:30:24 | 0 94,348,666 | 94,348,666 | Form 4 |
| 11 | CP Circle Holdings L.P. Former 10% Owners | 2026-02-13 16:30:08 | 15,372,589 0 | 15,372,589 | Form 4 |
| 12 | Pigott James M President | 2025-12-17 19:16:50 | 0 5,939,719 | 5,939,719 | Form 3 |
| 13 | Mills Andrew J. Director | 2025-12-22 16:30:06 | 0 2,616,861 | 2,616,861 | Form 4 |
| 14 | BX Mozart ML-2 Holdco L.P. BX Mozart ML-1 Holdco L.P. Mozart Aggregator II UNLV Holdco L.P. Mozart Aggregator UNLV Holdco L.P. Mozart Aggregator II LP BX Mozart ML-2 Holdco GP L.L.C. BX Mozart ML-1 Holdco GP L.L.C. BCP Mozart Aggregator L.P. Blackstone Management Associates VIII L.P. 10% Owner | 2026-06-01 16:15:05 | 0 2,428,681 | 2,428,681 | Form 4 |
| 15 | HEALY PATRICK J Director | 2026-06-01 18:05:43 | 1,567,683 233,916 | 1,801,599 | Form 4 |
| 16 | Boyle James M Chief Executive Officer | 2026-08-21 16:30:09 | 0 764,252 | 764,252 | Form 4 |
| 17 | Golwas Douglas P Chief Commercial Officer 10% Owner | 2026-06-17 16:44:05 | 365,864 365,864 | 731,728 | Form 4 |
| 18 | Mills Charles N. Director | 2025-12-22 16:30:04 | 0 201,936 | 201,936 | Form 4 |
| 19 | Miller Stephen L Chief Operating Officer | 2026-08-21 16:30:03 | 0 87,667 | 87,667 | Form 4 |
| 20 | Drazin Michael B Chief Financial Officer | 2026-06-17 16:47:17 | 23,899 0 | 23,899 | Form 4 |
| 21 | Laabs Amanda H. Chief Product Officer | 2026-06-17 16:48:58 | 23,899 0 | 23,899 | Form 4 |
| 22 | Sweet Thomas W Director | 2026-06-15 17:55:59 | 5,387 12,413 | 17,800 | Form 4 |
| 23 | Abrams William J See Remarks | 2026-06-17 17:01:45 | 16,546 0 | 16,546 | Form 4 |
| 24 | GALANTI RICHARD A Director | 2026-06-15 17:59:31 | 16,392 0 | 16,392 | Form 4 |
| 25 | Bluedorn Todd M Director | 2026-06-15 17:50:40 | 15,732 0 | 15,732 | Form 4 |
| 26 | Liberman Alexander M. Chief Legal Officer | 2026-06-17 16:51:19 | 11,031 0 | 11,031 | Form 4 |
| 27 | Shryock Christopher P Chief Human Resources Officer | 2026-06-17 16:56:55 | 11,031 0 | 11,031 | Form 4 |
| 28 | CORCORAN JESSI L Principal Accounting Officer | 2026-06-09 16:30:09 | 5,000 0 | 5,000 | Form 4 |
| 29 | Wise Stephen H. Director | 2026-01-08 16:15:21 | 0 0 | 0 | Form 3 |
| 30 | Schmidt Robert R. Director | 2026-01-08 16:15:19 | 0 0 | 0 | Form 3 |
| 31 | Best Jacob Director | 2025-12-17 21:07:53 | 0 0 | 0 | Form 3 |
| 32 | Sunder Anushka M Director | 2025-12-17 19:04:07 | 0 0 | 0 | Form 3 |
| 33 | Baratta Joseph Director | 2025-12-17 19:02:08 | 0 0 | 0 | Form 3 |