NXDR

SEC source: 0001846069-26-000171 · wk-form4_1790971530.xml · derivative · entry 2

Pressman Jason · CIK 0001649999 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,536

Underlying: Class A Common Stock · 6,536 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 restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2 · derivative.exercise_date: The RSU Award will vest as to 1/4 of the shares subject to the award on each of March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, in each case, subject to the reporting person's continued service to the Issuer through each such date.

F3 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000171 · wk-form4_1790971530.xml · nonDerivative · entry 1

Pressman Jason · CIK 0001649999 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 194,941

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.

SEC source: 0001846069-26-000173 · wk-form4_1790971545.xml · derivative · entry 2

Steele Elisa · CIK 0001596281 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,536

Underlying: Class A Common Stock · 6,536 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 restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2 · derivative.exercise_date: The RSU Award will vest as to 1/4 of the shares subject to the award on each of March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, in each case, subject to the reporting person's continued service to the Issuer through each such date.

F3 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000173 · wk-form4_1790971545.xml · nonDerivative · entry 1

Steele Elisa · CIK 0001596281 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 257,283

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.

SEC source: 0001846069-26-000169 · wk-form4_1790971511.xml · derivative · entry 2

Sze David L · CIK 0001339221 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,536

Underlying: Class A Common Stock · 6,536 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 restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2 · derivative.exercise_date: The RSU Award will vest as to 1/4 of the shares subject to the award on each of March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, in each case, subject to the reporting person's continued service to the Issuer through each such date.

F3 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000169 · wk-form4_1790971511.xml · nonDerivative · entry 1

Sze David L · CIK 0001339221 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 194,941

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.

SEC source: 0001846069-26-000170 · wk-form4_1790971522.xml · derivative · entry 2

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,536

Underlying: Class A Common Stock · 6,536 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 restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2 · derivative.exercise_date: The RSU Award will vest as to 1/4 of the shares subject to the award on each of March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, in each case, subject to the reporting person's continued service to the Issuer through each such date

F3 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000170 · wk-form4_1790971522.xml · nonDerivative · entry 1

GURLEY J WILLIAM · CIK 0001190191 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 194,941

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.

SEC source: 0001846069-26-000172 · wk-form4_1790971538.xml · derivative · entry 2

Shah Niraj · CIK 0001620093 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,536

Underlying: Class A Common Stock · 6,536 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 restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2 · derivative.exercise_date: The RSU Award will vest as to 1/4 of the shares subject to the award on each of March 31, 2026, June 30, 2026, September 30, 2026 and December 31, 2026, in each case, subject to the reporting person's continued service to the Issuer through each such date.

F3 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000172 · wk-form4_1790971538.xml · nonDerivative · entry 1

Shah Niraj · CIK 0001620093 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 257,283

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.

SEC source: 0002059765-26-000005 · wk-form4_1790280190.xml · nonDerivative · entry 1

Kiernan Michael · CIK 0002059765 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 458,602

F1 · shares: Sale of shares made pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on May 22, 2026.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.48 to $2.65 per share, 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 range set forth in this footnote.

SEC source: 0002083093-26-000006 · wk-form4_1790193952.xml · derivative · entry 5

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 40,000 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.

F4 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

SEC source: 0002083093-26-000006 · wk-form4_1790193952.xml · derivative · entry 4

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Class A Common Stock · 40,000 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.

F4 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F1 · kind: This transaction was entered into pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on June 3, 2026.

F4 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

SEC source: 0002083093-26-000006 · wk-form4_1790193952.xml · derivative · entry 3

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 50,986

Underlying: Class B Common Stock · 40,000 shares

Expires 2031-03-23

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 · kind: This transaction was entered into pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on June 3, 2026.

F3 · derivative.exercise_date: The stock option award is fully vested and exercisable.

SEC source: 0002083093-26-000006 · wk-form4_1790193952.xml · nonDerivative · entry 2

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: This transaction was entered into pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on June 3, 2026.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.62 to $2.6350 per share, 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 range set forth in this footnote.

SEC source: 0002083093-26-000006 · wk-form4_1790193952.xml · nonDerivative · entry 1

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,000

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.

SEC source: 0002083093-26-000004 · wk-form4_1789675737.xml · derivative · entry 5

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 154,893 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.

F4 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

SEC source: 0002083093-26-000004 · wk-form4_1789675737.xml · derivative · entry 4

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 154,893

Underlying: Class A Common Stock · 154,893 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.

F4 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

F4 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock of the Issuer at the election of the holder any time; provided; however, that each share of Class B Common Stock shall automatically be converted into Class A Common Stock on a one-for-one basis on the earlier of the: (i) tenth anniversary of the completion of the Business Combination or (ii) date specified by the affirmative vote of the holders of two-thirds of the Class B Common Stock then outstanding. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon any transfer, whether or not for value (subject to certain exceptions).

SEC source: 0002083093-26-000004 · wk-form4_1789675737.xml · derivative · entry 3

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B Common Stock · 154,893 shares

Expires 2029-02-13

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.

F3 · derivative.exercise_date: The stock option award is fully vested and exercisable.

SEC source: 0002083093-26-000004 · wk-form4_1789675737.xml · nonDerivative · entry 2

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Sale of shares made pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on June 3, 2026.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.42 to $2.44 per share, 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 range set forth in this footnote.

SEC source: 0002083093-26-000004 · wk-form4_1789675737.xml · nonDerivative · entry 1

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 154,893

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.

SEC source: 0002083093-26-000002 · wk-form4_1788552507.xml · nonDerivative · entry 1

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Sale of shares made pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on June 3, 2026.

F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.19 to $2.30 per share, 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 range set forth in this footnote.

SEC source: 0002059765-26-000003 · wk-form4_1787688329.xml · nonDerivative · entry 1

Kiernan Michael · CIK 0002059765 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 508,602

F1 · shares: Sale of shares made pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on May 22, 2026.

F2 · balance_after: Includes 2,500 shares of Class A Common Stock acquired pursuant to the Nextdoor Holdings, Inc. 2021 Employee Stock Purchase Plan on August 14, 2026 in a transaction that was exempt under Rules 16b-3(c) and 16b-3(d).

SEC source: 0001846069-26-000157 · wk-form4_1787169611.xml · nonDerivative · entry 1

Schwartz Sophia · CIK 0002022306 · Chief Legal Officer, Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 336,897

F1 · shares: Sale of shares made pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on September 4, 2025.

F2 · balance_after: Includes 2,500 shares of Class A Common Stock acquired pursuant to the Nextdoor Holdings, Inc. 2021 Employee Stock Purchase Plan on August 14, 2026 in a transaction that was exempt under Rules 16b-3(c) and 16b-3(d).

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · nonDerivative · entry 7

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 336,897

F1 · shares: Sale of shares made pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on September 4, 2025.

SEC source: 0001846069-26-000148 · wk-form4_1784318545.xml · nonDerivative · entry 9

How Antoinette · CIK 0002083093 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,581

F1 · shares: Sale of shares made pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on June 2, 2025.

SEC source: 0001846069-26-000150 · wk-form4_1784577656.xml · nonDerivative · entry 1

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,724,123

F1 · shares: Sale of shares made pursuant to and in accordance with the requirements of Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, under a plan adopted by the Reporting Person on September 4, 2025.

SEC source: 0001846069-26-000137 · wk-form4_1784232010.xml · derivative · entry 10

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 580,238

Underlying: Class A Common Stock · 41,446 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.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F6 · derivative.exercise_date: The RSU award vests in equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on April 15, 2026, subject to the reporting person's continued service to the Issuer on each vesting date.

F4 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000137 · wk-form4_1784232010.xml · derivative · entry 9

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 436,047

Underlying: Class A Common Stock · 72,674 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.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F5 · derivative.exercise_date: The RSU award vests in equal quarterly installments over three years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on April 15, 2025, subject to the reporting person's continued service to the Issuer on each vesting date.

F4 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000137 · wk-form4_1784232010.xml · derivative · entry 8

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 357,143

Underlying: Class A Common Stock · 178,572 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.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F3 · derivative.exercise_date: The RSU award vests in equal quarterly installments over two years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on April 15, 2025, subject to the reporting person's continued service to the Issuer on each vesting date.

F4 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000137 · wk-form4_1784232010.xml · nonDerivative · entry 6

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,814,123

SEC source: 0001846069-26-000137 · wk-form4_1784232010.xml · nonDerivative · entry 5

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,835,170

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.

SEC source: 0001846069-26-000137 · wk-form4_1784232010.xml · nonDerivative · entry 4

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,793,724

SEC source: 0001846069-26-000137 · wk-form4_1784232010.xml · nonDerivative · entry 3

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,830,628

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.

SEC source: 0001846069-26-000137 · wk-form4_1784232010.xml · nonDerivative · entry 2

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,757,954

SEC source: 0001846069-26-000137 · wk-form4_1784232010.xml · nonDerivative · entry 1

Lisowski Craig · CIK 0002055623 · President of Products

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,848,633

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.

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · derivative · entry 10

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 412,615

Underlying: Class A Common Stock · 29,472 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.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F6 · derivative.exercise_date: The RSU award vests in equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting date on April 15, 2026, subject to the reporting person's continued service to the Issuer on each vesting date.

F4 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · derivative · entry 9

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 48,450

Underlying: Class A Common Stock · 24,225 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.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F5 · derivative.exercise_date: The RSU award vests in four equal quarterly installments on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2026, subject to the reporting person's continued service to the Issuer on each vesting date.

F4 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · derivative · entry 8

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 183,334

Underlying: Class A Common Stock · 91,666 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.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F3 · derivative.exercise_date: The RSU award vests in eight equal quarterly installments on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2025, subject to the reporting person's continued service to the Issuer on each vesting date.

F4 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · nonDerivative · entry 6

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 389,479

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · nonDerivative · entry 5

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 402,382

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.

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · nonDerivative · entry 4

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 372,910

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · nonDerivative · entry 3

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 383,516

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.

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · nonDerivative · entry 2

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 359,291

SEC source: 0001846069-26-000144 · wk-form4_1784318424.xml · nonDerivative · entry 1

Schwartz Sophia · CIK 0002022306 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 399,423

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.

SEC source: 0001846069-26-000146 · wk-form4_1784318477.xml · derivative · entry 9

Tolia Nirav N · CIK 0001295752 · Director · CEO and President · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,547,303

Underlying: Class A Common Stock · 110,522 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 restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F5 · derivative.exercise_date: The RSU award vests in equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2026, subject to the reporting person's continued service to the Issuer on each vesting date.

F3 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000146 · wk-form4_1784318477.xml · derivative · entry 8

Tolia Nirav N · CIK 0001295752 · Director · CEO and President · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 451,254

Underlying: Class A Common Stock · 45,125 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 restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F4 · derivative.exercise_date: The RSU award vests in equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on April 15, 2025, subject to the reporting person's continued service to the Issuer on each vesting date.

F3 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000146 · wk-form4_1784318477.xml · derivative · entry 7

Tolia Nirav N · CIK 0001295752 · Director · CEO and President · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,191,884

Underlying: Class A Common Stock · 313,126 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 restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2 · derivative.exercise_date: The RSU award vests in equal quarterly installments over four years on January 15, April 15, July 15 and October 15 of each calendar year, with the first such vesting event on July 15, 2024, subject to the reporting person's continued service to the Issuer on each vesting date.

F3 · derivative.expiration_date: These RSUs do not expire; they either vest or are cancelled prior to the vesting date.

SEC source: 0001846069-26-000146 · wk-form4_1784318477.xml · nonDerivative · entry 6

Tolia Nirav N · CIK 0001295752 · Director · CEO and President · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,100,351

SEC source: 0001846069-26-000146 · wk-form4_1784318477.xml · nonDerivative · entry 5

Tolia Nirav N · CIK 0001295752 · Director · CEO and President · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,143,842

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.