| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Arkell Sandra A | Controller | 2000 PURCHASE STREET, PURCHASE | /s/ Craig R. Brown, as attorney-in-fact for Sandra Arkell pursuant to a power of attorney dated July 9, 2025 | 03 Mar 2026 | 0001649899 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MA | Class A Common Stock | Tax liability | $94,348 | -184 | -6.3% | $512.76 | 2,736 | 01 Mar 2026 | Direct | F1, F2 |
| transaction | MA | Class A Common Stock | Award | $0 | +441 | +16% | $0.000000 | 3,177 | 01 Mar 2026 | Direct | F3 |
| transaction | MA | Class A Common Stock | Tax liability | $93,835 | -183 | -5.8% | $512.76 | 2,994 | 01 Mar 2026 | Direct | F4 |
| transaction | MA | Class A Common Stock | Award | $0 | +482 | +16% | $0.000000 | 3,476 | 01 Mar 2026 | Direct | F5 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MA | Employee Stock Option (right to buy) | Award | $0 | +547 | $0.000000 | 547 | 01 Mar 2026 | Class A Common Stock | 547 | $517.21 | Direct | F6 |
| Id | Content |
|---|---|
| F1 | Represents withholding of shares to pay tax liability incident to the vesting of restricted stock units. |
| F2 | Reflects 43.011 shares of Class A Common Stock acquired by the reporting person in November 2025 pursuant to the company's Employee Stock Purchase Plan. |
| F3 | Award of restricted stock units that will vest in three (3) equal annual installments beginning March 1, 2027. |
| F4 | Represents withholding of shares to pay tax liability incident to the settlement of performance stock units that were fully earned and vested on March 1, 2025, and settled on March 1, 2026. |
| F5 | Represents earned performance stock units granted on March 1, 2023 that contained performance-vesting requirements. The award was fully earned and vested on March 1, 2026, but will settle on March 1, 2027. The award is net withholding of shares to pay tax liability incident to the vesting of the award. |
| F6 | The employee stock options vest in three (3) equal annual installments beginning March 1, 2027. |
Exhibit 24: Power of Attorney is attached.