BRZE

SEC source: 0001532809-26-000002 · form4-02032026_110221.xml · nonDerivative · entry 1

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Investment Partners Select Fund I,L.P.

Disclosed balance after: 250,958

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: Effective January 30, 2026, per the amended and restated certificate of incorporation, all outstanding shares of the Issuer's Class B common stock automatically converted into shares of Issuer's Class A common stock without any actions of the holder (the "Conversion").

F2 · ownership.nature: Securities are held by Battery Investment Partners Select Fund I, L.P. ("BIP Select I"). The sole general partner of BIP Select I is Battery Partners Select Fund I GP, LLC ("BP Select I GP"). The Reporting Person is a managing member of BP Select I GP and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001889225-25-000009 · wk-form4_1766179152.xml · nonDerivative · entry 1

Malik Pankaj · CIK 0001889225 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,572

F1 · balance_after: Of the reported shares, 31,148 shares are represented by restricted stock units.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · derivative · entry 14

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-B Side Fund, L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 267,977 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F6 · ownership.nature: Securities are held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF"). The sole general partner of BV XI-B SF is BP XI SF. The Reporting Person is a managing member of BP XI SF and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · derivative · entry 13

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-A Side Fund, L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,235,865 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F5 · ownership.nature: Securities are held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF"). The sole general partner of BV XI-A SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The Reporting Person is a managing member of BP XI SF and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · derivative · entry 12

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-B, L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 314,301 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F4 · ownership.nature: Securities are held by Battery Ventures XI-B, L.P. ("BV XI-B"). The sole general partner of BV XI-B is BP XI. The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · derivative · entry 11

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-A, L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,189,541 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F3 · ownership.nature: Securities are held by Battery Ventures XI-A, L.P. ("BV XI-A"). The sole general partner of BV XI-A is BP XI. The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · derivative · entry 10

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Investment Partners XI, LLC

Disclosed balance after: 0

Underlying: Class A Common Stock · 55,137 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F2 · ownership.nature: Securities are held by Battery Investment Partners XI, LLC ("BIP XI"). The sole managing member of BIP XI is Battery Partners XI, LLC ("BP XI"). The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · nonDerivative · entry 5

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-B Side Fund, L.P.

Disclosed balance after: 268,601

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F6 · ownership.nature: Securities are held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF"). The sole general partner of BV XI-B SF is BP XI SF. The Reporting Person is a managing member of BP XI SF and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · nonDerivative · entry 4

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-A Side Fund, L.P.

Disclosed balance after: 1,238,741

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F5 · ownership.nature: Securities are held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF"). The sole general partner of BV XI-A SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The Reporting Person is a managing member of BP XI SF and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · nonDerivative · entry 3

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-B, L.P.

Disclosed balance after: 315,033

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F4 · ownership.nature: Securities are held by Battery Ventures XI-B, L.P. ("BV XI-B"). The sole general partner of BV XI-B is BP XI. The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · nonDerivative · entry 2

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-A, L.P.

Disclosed balance after: 1,192,309

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F3 · ownership.nature: Securities are held by Battery Ventures XI-A, L.P. ("BV XI-A"). The sole general partner of BV XI-A is BP XI. The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001231919-25-000598 · form4-12102025_101211.xml · nonDerivative · entry 1

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Investment Partners XI, LLC

Disclosed balance after: 60,607

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F2 · ownership.nature: Securities are held by Battery Investment Partners XI, LLC ("BIP XI"). The sole managing member of BIP XI is Battery Partners XI, LLC ("BP XI"). The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001889752-25-000004 · wk-form4_1763679357.xml · nonDerivative · entry 3

Wiseman Susan · CIK 0001889752 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 219,794

F4 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan adopted on April 14, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.96 to $28.46 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.

F3 · balance_after: Of the reported shares, 78,887 shares are represented by restricted stock units.

SEC source: 0001889752-25-000004 · wk-form4_1763679357.xml · nonDerivative · entry 2

Wiseman Susan · CIK 0001889752 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 221,002

F4 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan adopted on April 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 $26.95 to $27.91 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.

F3 · balance_after: Of the reported shares, 78,887 shares are represented by restricted stock units.

SEC source: 0001889752-25-000004 · wk-form4_1763679357.xml · nonDerivative · entry 1

Wiseman Susan · CIK 0001889752 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 224,250

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16, 2021 and last modified April 30, 2023, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.64 to $26.80 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.

F3 · balance_after: Of the reported shares, 78,887 shares are represented by restricted stock units.

SEC source: 0001888946-25-000004 · wk-form4_1763679325.xml · nonDerivative · entry 1

Winkles Isabelle · CIK 0001888946 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 263,660

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16, 2021 and last modified April 30, 2023, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.64 to $26.81 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.

F3 · balance_after: Of the reported shares, 174,410 shares are represented by restricted stock units.

SEC source: 0001888935-25-000004 · wk-form4_1763678921.xml · nonDerivative · entry 1

Hyman Jonathan · CIK 0001888935 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 195,317

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16, 2021 and last modified April 30, 2023, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.64 to $26.83 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.

F3 · balance_after: Of the reported shares, 128,965 shares are represented by restricted stock units.

SEC source: 0001888932-25-000004 · wk-form4_1763679126.xml · nonDerivative · entry 1

Magnuson William · CIK 0001888932 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 694,746

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16, 2021 and last modified April 30, 2023, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.64 to $26.83 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.

F3 · balance_after: Of the reported shares, 372,046 shares are represented by restricted stock units.

SEC source: 0001889225-25-000006 · wk-form4_1763678699.xml · nonDerivative · entry 1

Malik Pankaj · CIK 0001889225 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,112

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16, 2021 and last modified April 15, 2024, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · balance_after: Of the reported shares, 31,148 shares are represented by restricted stock units.

SEC source: 0002060697-25-000004 · wk-form4_1763678652.xml · nonDerivative · entry 1

Malik Astha · CIK 0002060697 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 219,338

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16, 2021, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.64 to $26.83 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.

F3 · balance_after: Of the reported shares, 170,136 shares are represented by restricted stock units.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · derivative · entry 14

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-B Side Fund, L.P.

Disclosed balance after: 267,977

Underlying: Class A Common Stock · 87,496 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F6 · ownership.nature: Securities are held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF"). The sole general partner of BV XI-B SF is BP XI SF. The Reporting Person is a managing member of BP XI SF and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · derivative · entry 13

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-A Side Fund, L.P.

Disclosed balance after: 1,235,865

Underlying: Class A Common Stock · 403,504 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F5 · ownership.nature: Securities are held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF"). The sole general partner of BV XI-A SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The Reporting Person is a managing member of BP XI SF and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · derivative · entry 12

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-B, L.P.

Disclosed balance after: 314,301

Underlying: Class A Common Stock · 102,619 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F4 · ownership.nature: Securities are held by Battery Ventures XI-B, L.P. ("BV XI-B"). The sole general partner of BV XI-B is BP XI. The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · derivative · entry 11

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-A, L.P.

Disclosed balance after: 1,189,541

Underlying: Class A Common Stock · 388,381 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F3 · ownership.nature: Securities are held by Battery Ventures XI-A, L.P. ("BV XI-A"). The sole general partner of BV XI-A is BP XI. The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · derivative · entry 10

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Investment Partners XI, LLC

Disclosed balance after: 55,137

Underlying: Class A Common Stock · 18,000 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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F1 · price: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F10 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F10 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F2 · ownership.nature: Securities are held by Battery Investment Partners XI, LLC ("BIP XI"). The sole managing member of BIP XI is Battery Partners XI, LLC ("BP XI"). The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · nonDerivative · entry 5

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-B Side Fund, L.P.

Disclosed balance after: 87,496

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F6 · ownership.nature: Securities are held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF"). The sole general partner of BV XI-B SF is BP XI SF. The Reporting Person is a managing member of BP XI SF and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · nonDerivative · entry 4

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-A Side Fund, L.P.

Disclosed balance after: 403,504

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F5 · ownership.nature: Securities are held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF"). The sole general partner of BV XI-A SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The Reporting Person is a managing member of BP XI SF and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · nonDerivative · entry 3

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-B, L.P.

Disclosed balance after: 102,619

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F4 · ownership.nature: Securities are held by Battery Ventures XI-B, L.P. ("BV XI-B"). The sole general partner of BV XI-B is BP XI. The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · nonDerivative · entry 2

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Ventures XI-A, L.P.

Disclosed balance after: 388,381

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F3 · ownership.nature: Securities are held by Battery Ventures XI-A, L.P. ("BV XI-A"). The sole general partner of BV XI-A is BP XI. The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001532809-25-000005 · form4-10022025_081056.xml · nonDerivative · entry 1

Agrawal Neeraj · CIK 0001532809 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Battery Investment Partners XI, LLC

Disclosed balance after: 18,000

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: These shares of Class B common stock were converted on a one-for-one basis into Class A common stock.

F2 · ownership.nature: Securities are held by Battery Investment Partners XI, LLC ("BIP XI"). The sole managing member of BIP XI is Battery Partners XI, LLC ("BP XI"). The Reporting Person is a managing member of BP XI and may be deemed to share voting and dispositive power over these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001889225-25-000004 · wk-form4_1758576847.xml · nonDerivative · entry 1

Malik Pankaj · CIK 0001889225 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,756

F1 · balance_after: Of the reported shares, 37,756 shares are represented by restricted stock units.

SEC source: 0001676238-25-000139 · wk-form4_1757451118.xml · nonDerivative · entry 1

Malik Astha · CIK 0002060697 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 233,660

F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan adopted on April 14, 2025.

F2 · balance_after: Of the reported shares, 196,263 shares are represented by restricted stock units.

SEC source: 0001676238-25-000137 · wk-form4_1757108832.xml · derivative · entry 4

Winkles Isabelle · CIK 0001888946 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 8,532 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 into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

SEC source: 0001676238-25-000137 · wk-form4_1757108832.xml · derivative · entry 3

Winkles Isabelle · CIK 0001888946 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,532

Underlying: Class A Common Stock · 8,532 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 into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

SEC source: 0001676238-25-000137 · wk-form4_1757108832.xml · derivative · entry 2

Winkles Isabelle · CIK 0001888946 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,281

Underlying: Class B Common Stock · 8,532 shares

Expires 2030-02-03

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: This award is fully vested.

F1 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

SEC source: 0001676238-25-000137 · wk-form4_1757108832.xml · nonDerivative · entry 1

Winkles Isabelle · CIK 0001888946 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 276,082

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 into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F2 · balance_after: Of the reported shares, 195,217 shares are represented by restricted stock units.

SEC source: 0001676238-25-000119 · wk-form4_1755810069.xml · nonDerivative · entry 2

Wiseman Susan · CIK 0001889752 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 229,724

F3 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan adopted on April 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 $24.92 to $25.47 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.

F2 · balance_after: Of the reported shares, 88,817 shares are represented by restricted stock units.

SEC source: 0001676238-25-000125 · wk-form4_1755810396.xml · nonDerivative · entry 1

McDonnell Edward M. · CIK 0002078285 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 433,854

F1 · shares: These shares represent a restricted stock unit ("RSU") award, which shall vest over four years with 40% of shares vesting on August 15, 2026, and the remainder of the shares vesting in equal quarterly installments thereafter. The vesting of the RSUs are subject to the Reporting Person's continuous service through each vesting date.

SEC source: 0001676238-25-000119 · wk-form4_1755810069.xml · nonDerivative · entry 1

Wiseman Susan · CIK 0001889752 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 234,667

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16, 2021 and last modified April 30, 2023, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · balance_after: Of the reported shares, 88,817 shares are represented by restricted stock units.

SEC source: 0001676238-25-000123 · wk-form4_1755810313.xml · nonDerivative · entry 1

Malik Pankaj · CIK 0001889225 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,930

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16, 2021 and last modified April 15, 2024, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · balance_after: Of the reported shares, 37,756 shares are represented by restricted stock units.

SEC source: 0001676238-25-000121 · wk-form4_1755810177.xml · nonDerivative · entry 1

Malik Astha · CIK 0002060697 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 236,930

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16 ,2021, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · balance_after: Of the reported shares, 196,263 shares are represented by restricted stock units.

SEC source: 0001676238-25-000117 · wk-form4_1755809970.xml · nonDerivative · entry 1

Hyman Jonathan · CIK 0001888935 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 205,106

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16 ,2021 and last modified April 30, 2023, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · balance_after: Of the reported shares, 145,359 shares are represented by restricted stock units.

SEC source: 0001676238-25-000115 · wk-form4_1755809186.xml · nonDerivative · entry 1

Winkles Isabelle · CIK 0001888946 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 267,550

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16 ,2021 and last modified April 30, 2023, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · balance_after: Of the reported shares, 195,217 shares are represented by restricted stock units.

SEC source: 0001676238-25-000113 · wk-form4_1755809074.xml · nonDerivative · entry 1

Magnuson William · CIK 0001888932 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 721,444

F1 · kind: This transaction was effected in accordance with a non-discretionary sell-to-cover program implemented by the Issuer, effective November 16, 2021 and last modified April 30, 2023, to satisfy tax withholding obligations arising in connection with the vesting of the Reporting Person's restricted stock units.

F2 · balance_after: Of the reported shares, 416,772 shares are represented by restricted stock units.

SEC source: 0001676238-25-000111 · wk-form4_1755635594.xml · derivative · entry 2

Hyman Jonathan · CIK 0001888935 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,522,879

Underlying: Class A Common Stock · 116,879 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 share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

SEC source: 0001676238-25-000111 · wk-form4_1755635594.xml · derivative · entry 1

Hyman Jonathan · CIK 0001888935 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B Common Stock · 116,879 shares

Expires 2029-03-11

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_date: This award is fully vested.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

SEC source: 0001676238-25-000109 · wk-form4_1753909420.xml · nonDerivative · entry 1

Malik Astha · CIK 0002060697 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 249,979

F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan adopted on April 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 $30.00 to $30.06 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.

F3 · balance_after: Of the reported shares, 222,391 shares are represented by restricted stock units.

SEC source: 0001676238-25-000107 · wk-form4_1752610084.xml · nonDerivative · entry 1

Wiseman Susan · CIK 0001889752 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 239,655

F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan adopted on April 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 $26.69 to $27.32 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.

F3 · balance_after: Of the reported shares, 98,748 shares are represented by restricted stock units.

SEC source: 0001676238-25-000106 · wk-form4_1752610049.xml · derivative · entry 2

Magnuson William · CIK 0001888932 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,822,765

Underlying: Class A Common Stock · 547,901 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 share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.

SEC source: 0001676238-25-000106 · wk-form4_1752610049.xml · derivative · entry 1

Magnuson William · CIK 0001888932 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,658

Underlying: Class B Common Stock · 547,901 shares

Expires 2029-03-11

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_date: This award is fully vested.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock (A) at any time at the option of the Reporting Person or (B) automatically upon the occurrence of the following: (1) the transfer of such share of Class B Common Stock, except for certain transfers whereby the Reporting Person continues to hold sole voting and dispositive power with respect to each such share, (2) the death of a Class B common stockholder who is a natural person, (3) the last trading day of the fiscal quarter immediately following the fifth anniversary of the Issuer's initial public offering, (4) the date specified by affirmative vote of the holders of a majority of the outstanding shares of Class B common stock and (5) the last trading day of the fiscal quarter during which the then outstanding shares of Class B Common Stock first represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock.