NET

SEC source: 0001477333-25-000092 · wk-form4_1747944635.xml · derivative · entry 7

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,925

Underlying: Class A Common Stock · 10,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

SEC source: 0001477333-25-000092 · wk-form4_1747944635.xml · derivative · entry 6

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,925

Underlying: Class A Common Stock · 10,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

SEC source: 0001477333-25-000092 · wk-form4_1747944635.xml · derivative · entry 5

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 160,341

Underlying: Class B Common Stock · 10,000 shares

Expires 2027-07-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: Shares subject to the option are fully vested and immediately exercisable.

F1 · derivative.underlying: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

SEC source: 0001477333-25-000092 · wk-form4_1747944635.xml · nonDerivative · entry 4

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 241,550

F2 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 26, 2024.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.44 to $157.86, inclusive.

SEC source: 0001477333-25-000092 · wk-form4_1747944635.xml · nonDerivative · entry 3

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 242,966

F2 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 26, 2024.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $156.44 to $157.43, inclusive.

SEC source: 0001477333-25-000092 · wk-form4_1747944635.xml · nonDerivative · entry 2

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 274,141

F2 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 26, 2024.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.44 to $156.43, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3) through (5) to this Form 4.

SEC source: 0001477333-25-000092 · wk-form4_1747944635.xml · nonDerivative · entry 1

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 283,106

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

SEC source: 0001477333-25-000086 · wk-form4_1747426966.xml · nonDerivative · entry 5

Riley Janel · CIK 0001979391 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,363

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2024.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $156.08 to $156.22, inclusive.

SEC source: 0001477333-25-000086 · wk-form4_1747426966.xml · nonDerivative · entry 4

Riley Janel · CIK 0001979391 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,773

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2024.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.05 to $156.03, inclusive.

SEC source: 0001477333-25-000086 · wk-form4_1747426966.xml · nonDerivative · entry 3

Riley Janel · CIK 0001979391 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 69,532

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2024.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $153.77 to $154.56, inclusive.

SEC source: 0001477333-25-000086 · wk-form4_1747426966.xml · nonDerivative · entry 2

Riley Janel · CIK 0001979391 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 70,272

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2024.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $152.705 to $153.32, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) through (7) to this Form 4.

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · derivative · entry 23

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 7,412,415

Underlying: Class A Common Stock · 52,384 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 20

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 399,276

F21 · kind: The shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 19

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 18,063

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F19 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $153.62 to $154.36, inclusive.

F20 · balance_after: The 18,063 shares issuable upon vesting and settlement of the RSUs reported in the row immediately below were re-registered and are now held directly by the Revocable Trust.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 18

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 10,426

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F18 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $152.62 to $153.61, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 17

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 25,638

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F17 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $151.62 to $152.61, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 16

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 47,894

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F16 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.62 to $151.61, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 15

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 52,384

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001477333-25-000090 · wk-form4_1747427154.xml · nonDerivative · entry 1

Zatlyn Michelle · CIK 0001786951 · Director · President and Board Co-Chair

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 381,213

F1 · kind: The shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.

F2 · balance_after: The 15,848 shares issuable upon vesting and settlement of the RSUs were re-registered and are now held directly by The Sutherland/Zatlyn Revocable Trust dated November 17, 2016, for which the reporting person serves as co-trustee (the "Revocable Trust").

SEC source: 0001477333-25-000088 · wk-form4_1747427069.xml · nonDerivative · entry 1

Kramer Douglas James · CIK 0001787168 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,377

F1 · kind: The shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.

F2 · balance_after: Includes 164 shares of Class A Common Stock acquired under the Issuer's employee stock purchase plan on May 9, 2025.

SEC source: 0001477333-25-000086 · wk-form4_1747426966.xml · nonDerivative · entry 1

Riley Janel · CIK 0001979391 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 70,851

F1 · kind: The shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.

F2 · balance_after: Includes 27 shares of Class A Common Stock acquired under the Issuer's employee stock purchase plan on May 9, 2025.

SEC source: 0001477333-25-000084 · wk-form4_1747426780.xml · nonDerivative · entry 1

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 273,106

F1 · kind: The shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of restricted stock units, or RSUs.

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · derivative · entry 22

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 7,464,799

Underlying: Class A Common Stock · 52,384 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 14

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F15 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $153.80 to $154.54, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 13

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 5,675

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F14 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $152.775 to $153.76, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 12

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 18,716

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F13 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $151.735 to $152.73, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 11

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 48,604

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.575 to $151.515, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 10

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 52,384

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · derivative · entry 21

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 7,517,183

Underlying: Class A Common Stock · 52,384 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 9

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.735 to $151.29, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 8

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 6,026

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $149.73 to $150.725, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 7

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 26,670

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $148.730 to $149.72, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 6

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 30,857

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $147.71 to $148.69, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 5

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 34,972

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $146.66 to $147.61, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 4

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 44,052

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $145.61 to $146.54, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 3

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 49,130

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $144.54 to $145.39, inclusive.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 2

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 51,858

F3 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2023.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $143.54 to $144.51, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) through (19) to this Form 4.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001104659-25-049693 · tm2515200-1_4seq1.xml · nonDerivative · entry 1

Prince Matthew · CIK 0001786925 · Director · CEO & Board Co-Chair · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 52,384

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F2 · ownership.nature: The shares are held of record by The Matthew Prince Revocable Trust dated October 29, 2015, for which the reporting person serves as trustee (the "Revocable Trust").

SEC source: 0001477333-25-000074 · wk-form4_1746131686.xml · nonDerivative · entry 3

Kramer Douglas James · CIK 0001787168 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 185,406

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 25, 2024.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.88 to $125.505, inclusive.

SEC source: 0001477333-25-000074 · wk-form4_1746131686.xml · nonDerivative · entry 2

Kramer Douglas James · CIK 0001787168 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 186,530

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 25, 2024.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.83 to $124.36, inclusive.

SEC source: 0001477333-25-000074 · wk-form4_1746131686.xml · nonDerivative · entry 1

Kramer Douglas James · CIK 0001787168 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 187,076

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 25, 2024.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $122.785 to $123.765, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) through (4) to this Form 4.

SEC source: 0001477333-25-000071 · wk-form4_1745871489.xml · derivative · entry 5

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,925

Underlying: Class A Common Stock · 10,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

SEC source: 0001477333-25-000071 · wk-form4_1745871489.xml · derivative · entry 4

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,925

Underlying: Class A Common Stock · 10,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

SEC source: 0001477333-25-000071 · wk-form4_1745871489.xml · derivative · entry 3

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 170,341

Underlying: Class B Common Stock · 10,000 shares

Expires 2027-07-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Shares subject to the option are fully vested and immediately exercisable.

F1 · derivative.underlying: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

SEC source: 0001477333-25-000071 · wk-form4_1745871489.xml · nonDerivative · entry 2

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 293,582

F2 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 26, 2024.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $120.00 to $120.27, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (3) to this Form 4.

SEC source: 0001477333-25-000071 · wk-form4_1745871489.xml · nonDerivative · entry 1

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 303,582

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

SEC source: 0001104659-25-036137 · tm2512590-1_4seq1.xml · derivative · entry 37

Zatlyn Michelle · CIK 0001786951 · Director · President and Board Co-Chair

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,355,228

Underlying: Class A Common Stock · 5,128 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F7 · ownership.nature: The shares are held of record by The SZ 2021 Irrevocable Trust dated November 6, 2021, for which the reporting person serves as the appointer.

SEC source: 0001104659-25-036137 · tm2512590-1_4seq1.xml · derivative · entry 36

Zatlyn Michelle · CIK 0001786951 · Director · President and Board Co-Chair

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 20,512 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F15 · ownership.direct: Upon the conversion of the shares of Class B Common Stock to Class A Common Stock, the shares were re-registered and are now held directly by the Revocable Trust.

SEC source: 0001104659-25-036137 · tm2512590-1_4seq1.xml · derivative · entry 35

Zatlyn Michelle · CIK 0001786951 · Director · President and Board Co-Chair

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,512

Underlying: Class A Common Stock · 20,512 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time into Class A Common Stock on a one-to-one basis at the reporting person's election and has no expiration date.

SEC source: 0001104659-25-036137 · tm2512590-1_4seq1.xml · derivative · entry 34

Zatlyn Michelle · CIK 0001786951 · Director · President and Board Co-Chair

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,348,708

Underlying: Class B Common Stock · 20,512 shares

Expires 2027-08-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F14 · derivative.exercise_date: Shares subject to the option are fully vested and immediately exercisable.