| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Shrader Glenn C | EVP & General Counsel | 1111 CIVIC DR STE 390, SUITE 390, WALNUT CREEK | /s/ Glenn C. Shrader | 18 Feb 2026 | 0002102635 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MCHB | Class A Common Stock | Options Exercise | +2,980 | +28% | 13,575 | 15 Feb 2026 | Direct | F1 | ||
| transaction | MCHB | Class A Common Stock | Tax liability | $18,874 | -1,228 | -9% | $15.37 | 12,347 | 15 Feb 2026 | Direct | |
| transaction | MCHB | Class A Common Stock | Options Exercise | +1,719 | +14% | 14,066 | 15 Feb 2026 | Direct | F1 | ||
| transaction | MCHB | Class A Common Stock | Tax liability | $10,882 | -708 | -5% | $15.37 | 13,358 | 15 Feb 2026 | Direct | |
| transaction | MCHB | Class A Common Stock | Options Exercise | +2,498 | +19% | 15,856 | 15 Feb 2026 | Direct | F1 | ||
| transaction | MCHB | Class A Common Stock | Tax liability | $15,816 | -1,029 | -6.5% | $15.37 | 14,827 | 15 Feb 2026 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MCHB | Incentive Units - Not Deferred (2022) | Options Exercise | $0 | -2,980 | -100% | $0.000000 | 0 | 15 Feb 2026 | Class A Common Stock | 2,980 | Direct | F2, F3 | |
| transaction | MCHB | Incentive Units - Not Deferred (2023) | Options Exercise | $0 | -1,719 | -50% | $0.000000 | 1,720 | 15 Feb 2026 | Class A Common Stock | 1,719 | Direct | F2, F4 | |
| transaction | MCHB | Incentive Units - Not Deferred (2024) | Options Exercise | $0 | -2,498 | -33% | $0.000000 | 4,997 | 15 Feb 2026 | Class A Common Stock | 2,498 | Direct | F2, F5 |
| Id | Content |
|---|---|
| F1 | Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock. Incentive units do not require the holder to pay any consideration upon vesting. |
| F2 | Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock. |
| F3 | All shares have vested as of February 15, 2026. |
| F4 | The remaining incentive units vest on February 15, 2027. |
| F5 | The incentive units vest in two equal annual installments beginning February 15, 2027. |