NET

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 11

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

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 26, 2024.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $201.00 to $201.32, inclusive.

F2 · ownership.nature: The shares are held of record by Center Court Partners Ltd., for which the reporting person serves as a partner.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 10

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 4,672

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 26, 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 $200.00 to $200.93, 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 (7) through (11) to this Form 4.

F2 · ownership.nature: The shares are held of record by Center Court Partners Ltd., for which the reporting person serves as a partner.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 9

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 40,911

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 Center Court Partners Ltd., for which the reporting person serves as a partner.

SEC source: 0001477333-25-000131 · wk-form4_1753825537.xml · nonDerivative · entry 3

Ledbetter Carl · CIK 0001366574 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,043,073

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 February 14, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.80 to $201.075, inclusive.

F3 · ownership.nature: The shares are held of record by the Carl S. Ledbetter Trust dated February 14, 2020, for which the reporting person serves as a trustee.

SEC source: 0001477333-25-000131 · wk-form4_1753825537.xml · nonDerivative · entry 2

Ledbetter Carl · CIK 0001366574 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,043,773

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 February 14, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $199.79 to $200.67, inclusive.

F3 · ownership.nature: The shares are held of record by the Carl S. Ledbetter Trust dated February 14, 2020, for which the reporting person serves as a trustee.

SEC source: 0001477333-25-000131 · wk-form4_1753825537.xml · nonDerivative · entry 1

Ledbetter Carl · CIK 0001366574 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,051,785

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 February 14, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $198.6837 to $199.66, 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) and (4) through (5) to this Form 4.

F3 · ownership.nature: The shares are held of record by the Carl S. Ledbetter Trust dated February 14, 2020, for which the reporting person serves as a trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · derivative · entry 22

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 52,462

Underlying: Class A Common Stock · 400 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.

F6 · ownership.nature: The shares are held of record by Center Court 2020 Trust 3 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · derivative · entry 21

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 51,700

Underlying: Class A Common Stock · 400 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.

F5 · ownership.nature: The shares are held of record by Center Court 2020 Trust 2 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · derivative · entry 20

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 52,357

Underlying: Class A Common Stock · 400 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.

F4 · ownership.nature: The shares are held of record by Center Court 2020 Trust 1 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · derivative · entry 19

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 190,911

Underlying: Class A Common Stock · 400 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 Center Court Partners Ltd., for which the reporting person serves as a partner.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 8

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

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 26, 2024.

F6 · ownership.nature: The shares are held of record by Center Court 2020 Trust 3 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 7

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 400

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.

F6 · ownership.nature: The shares are held of record by Center Court 2020 Trust 3 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 6

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

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 26, 2024.

F5 · ownership.nature: The shares are held of record by Center Court 2020 Trust 2 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 5

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 400

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.

F5 · ownership.nature: The shares are held of record by Center Court 2020 Trust 2 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 4

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

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 26, 2024.

F4 · ownership.nature: The shares are held of record by Center Court 2020 Trust 1 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 3

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 400

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.

F4 · ownership.nature: The shares are held of record by Center Court 2020 Trust 1 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 2

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

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 26, 2024.

F2 · ownership.nature: The shares are held of record by Center Court Partners Ltd., for which the reporting person serves as a partner.

SEC source: 0001473289-25-000005 · wk-form4_1753825758.xml · nonDerivative · entry 1

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 400

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 Center Court Partners Ltd., for which the reporting person serves as a partner.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · derivative · entry 20

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 52,862

Underlying: Class A Common Stock · 8,238 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.

F11 · ownership.nature: The shares are held of record by Center Court 2020 Trust 3 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · derivative · entry 19

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 52,100

Underlying: Class A Common Stock · 9,000 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.

F10 · ownership.nature: The shares are held of record by Center Court 2020 Trust 2 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · derivative · entry 18

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 52,757

Underlying: Class A Common Stock · 8,343 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.

F9 · ownership.nature: The shares are held of record by Center Court 2020 Trust 1 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · derivative · entry 17

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 191,311

Underlying: Class A Common Stock · 8,689 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 Center Court Partners Ltd., for which the reporting person serves as a partner.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · derivative · entry 16

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: 0001477333-25-000125 · wk-form4_1753226525.xml · derivative · entry 15

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: 0001477333-25-000125 · wk-form4_1753226525.xml · derivative · entry 14

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 140,341

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.

F12 · 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: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 13

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

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.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.00 to $200.58, inclusive.

F11 · ownership.nature: The shares are held of record by Center Court 2020 Trust 3 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 12

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 8,238

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.

F11 · ownership.nature: The shares are held of record by Center Court 2020 Trust 3 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 11

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

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.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.00 to $200.58, inclusive.

F10 · ownership.nature: The shares are held of record by Center Court 2020 Trust 2 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 10

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 9,000

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.

F10 · ownership.nature: The shares are held of record by Center Court 2020 Trust 2 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 9

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

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.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.00 to $200.58, inclusive.

F9 · ownership.nature: The shares are held of record by Center Court 2020 Trust 1 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 8

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 8,343

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.

F9 · ownership.nature: The shares are held of record by Center Court 2020 Trust 1 UA 12/11/20, for which the reporting person serves as trustee.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 7

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 0

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.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.00 to $200.58, inclusive.

F7 · ownership.nature: The shares are held of record by Center Court Partners Ltd., for which the reporting person serves as a partner.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 6

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 8,689

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.

F7 · ownership.nature: The shares are held of record by Center Court Partners Ltd., for which the reporting person serves as a partner.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 5

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.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.09 to $200.23, inclusive.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 4

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 241,750

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 $198.41 to $199.36, inclusive.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 3

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 245,050

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 $197.40 to $198.38, inclusive.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 2

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 251,050

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 $196.05 to $197.04, 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 (6) and (8) to this Form 4.

SEC source: 0001477333-25-000125 · wk-form4_1753226525.xml · nonDerivative · entry 1

SEIFERT THOMAS J · CIK 0001473289 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 251,550

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: 0001104659-25-068765 · tm2521166-1_4seq1.xml · derivative · entry 23

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 · 25,641 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: 0001104659-25-068765 · tm2521166-1_4seq1.xml · derivative · entry 22

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,641

Underlying: Class A Common Stock · 25,641 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: 0001104659-25-068765 · tm2521166-1_4seq1.xml · derivative · entry 21

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,133,325

Underlying: Class B Common Stock · 25,641 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.

SEC source: 0001104659-25-068765 · tm2521166-1_4seq1.xml · nonDerivative · entry 12

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

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 6,390

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 14, 2025.

F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.76 to $191.40, inclusive.

F2 · ownership.nature: The shares are held of record by The Sutherland/Zatlyn Revocable Trust dated November 17, 2016, for which the reporting person serves as co-trustee (the "Revocable Trust").

SEC source: 0001104659-25-068765 · tm2521166-1_4seq1.xml · nonDerivative · entry 11

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

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 20,192

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 14, 2025.

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $189.75 to $190.74, inclusive.

F2 · ownership.nature: The shares are held of record by The Sutherland/Zatlyn Revocable Trust dated November 17, 2016, for which the reporting person serves as co-trustee (the "Revocable Trust").

SEC source: 0001104659-25-068765 · tm2521166-1_4seq1.xml · nonDerivative · entry 10

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

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 32,031

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 Sutherland/Zatlyn Revocable Trust dated November 17, 2016, for which the reporting person serves as co-trustee (the "Revocable Trust").

SEC source: 0001104659-25-068765 · tm2521166-1_4seq1.xml · derivative · entry 20

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 · 25,641 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: 0001104659-25-068765 · tm2521166-1_4seq1.xml · derivative · entry 19

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,641

Underlying: Class A Common Stock · 25,641 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: 0001104659-25-068765 · tm2521166-1_4seq1.xml · derivative · entry 18

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,158,966

Underlying: Class B Common Stock · 25,641 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.

SEC source: 0001104659-25-068765 · tm2521166-1_4seq1.xml · nonDerivative · entry 9

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

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 6,390

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 14, 2025.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $188.09 to $188.775, inclusive.

F2 · ownership.nature: The shares are held of record by The Sutherland/Zatlyn Revocable Trust dated November 17, 2016, for which the reporting person serves as co-trustee (the "Revocable Trust").

SEC source: 0001104659-25-068765 · tm2521166-1_4seq1.xml · nonDerivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 11,812

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 14, 2025.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.09 to $188.06, inclusive.

F2 · ownership.nature: The shares are held of record by The Sutherland/Zatlyn Revocable Trust dated November 17, 2016, for which the reporting person serves as co-trustee (the "Revocable Trust").

SEC source: 0001104659-25-068765 · tm2521166-1_4seq1.xml · nonDerivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 20,020

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 14, 2025.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.08 to $187.07, inclusive.

F2 · ownership.nature: The shares are held of record by The Sutherland/Zatlyn Revocable Trust dated November 17, 2016, for which the reporting person serves as co-trustee (the "Revocable Trust").