Lie Sean

Chief Technology Officer

1. F1

   The Class B Common Stock is convertible into an equal number of Class A Common Stock at any time, at the Reporting Person's election, and has no expiration date.

2. F2

   The reporting person transferred 213,074 shares of the Issuer's common stock to a donor-advised fund sponsored by a charitable organization under Section 501(c)(3) of the Internal Revenue Code.

3. F3

   The sale reported on this Form 4 represents shares sold by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 20, 2026.

4. F4

   The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $203.18 to $204.17, inclusive. Upon request by the staff of the Securities and…

5. F5

   The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $204.18 to $205.17, inclusive. Upon request by the staff of the Securities and…

6. F6

   The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $205.18 to $206.17, inclusive. Upon request by the staff of the Securities and…

7. F7

   The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $206.18 to $207.17, inclusive. Upon request by the staff of the Securities and…

8. F8

   The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $207.18 to $208.17, inclusive. Upon request by the staff of the Securities and…

9. F9

   The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $208.18 to $209.17, inclusive. Upon request by the staff of the Securities and…

10. F10

    The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $209.18 to $210.17, inclusive. Upon request by the staff of the Securities and…

11. F11

    The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.18 to $211.17, inclusive. Upon request by the staff of the Securities and…

12. F12

    The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $211.21 to $212.12, inclusive. Upon request by the staff of the Securities and…

13. F13

    The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $212.22 to $213.16, inclusive. Upon request by the staff of the Securities and…

14. F14

    The sale price reported in Column 4 of Table 1 represents the weighted average sale price of the shares sold ranging from $210.00 to $210.16, inclusive. Upon request by the staff of the Securities and…

15. F15

    The stock option is fully vested and exercisable.

16. F16

    The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2023.

17. F17

    The stock option vests in 48 substantially equal monthly installments beginning on February 1, 2024.

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