RBRK

SEC source: 0001415889-25-009750 · form4-04022025_060405.xml · derivative · entry 5

THOMPSON JOHN WENDELL · CIK 0001207433 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By John and Sandra Thompson Trust

Disclosed balance after: 917,410

Underlying: Class A Common Stock · 9,009 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.

F6 · derivative.exercise_price: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F6 · price: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F6 · derivative.exercise_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F6 · derivative.expiration_date: Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock will also be convertible at any time at the option of the Reporting Person into one share of Class A Common Stock.

F1 · ownership.nature: The shares are held of record by John and Sandra Thompson Trust, for which the Reporting Person serves as a co-trustee and shares voting and dispositive power with his spouse.

SEC source: 0001415889-25-009750 · form4-04022025_060405.xml · nonDerivative · entry 4

THOMPSON JOHN WENDELL · CIK 0001207433 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By John and Sandra Thompson Trust

Disclosed balance after: 998

F2 · kind: This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 15, 2024.

F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.04 to $61.27 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote

F1 · ownership.nature: The shares are held of record by John and Sandra Thompson Trust, for which the Reporting Person serves as a co-trustee and shares voting and dispositive power with his spouse.

SEC source: 0001415889-25-009750 · form4-04022025_060405.xml · nonDerivative · entry 3

THOMPSON JOHN WENDELL · CIK 0001207433 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By John and Sandra Thompson Trust

Disclosed balance after: 1,498

F2 · kind: This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 15, 2024.

F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.01 to $60.88 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

F1 · ownership.nature: The shares are held of record by John and Sandra Thompson Trust, for which the Reporting Person serves as a co-trustee and shares voting and dispositive power with his spouse.

SEC source: 0001415889-25-009750 · form4-04022025_060405.xml · nonDerivative · entry 2

THOMPSON JOHN WENDELL · CIK 0001207433 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By John and Sandra Thompson Trust

Disclosed balance after: 7,407

F2 · kind: This sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan, adopted October 15, 2024.

F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.01 to $59.98 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separated price within the range set forth in this footnote.

F1 · ownership.nature: The shares are held of record by John and Sandra Thompson Trust, for which the Reporting Person serves as a co-trustee and shares voting and dispositive power with his spouse.

SEC source: 0001415889-25-009750 · form4-04022025_060405.xml · nonDerivative · entry 1

THOMPSON JOHN WENDELL · CIK 0001207433 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By John and Sandra Thompson Trust

Disclosed balance after: 10,007

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 · ownership.nature: The shares are held of record by John and Sandra Thompson Trust, for which the Reporting Person serves as a co-trustee and shares voting and dispositive power with his spouse.

SEC source: 0001415889-25-009428 · form4-04012025_100429.xml · nonDerivative · entry 1

Choudary Kiran Kumar · CIK 0002020220 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 614,798

F1 · kind: Represents the grant of restricted stock units ("RSUs") that vest as follows: 2.5% of the RSUs shall vest on each of the first four Quarterly Vesting Dates (as defined below) that occur following March 15, 2025, and the remainder shall vest in twelve equal installments on each subsequent Quarterly Vesting Date thereafter, in each case subject to the Reporting Person's Continuous Service (as defined in the 2024 Equity Incentive Plan) through each applicable vesting date. "Quarterly Vesting Date" shall mean the 15th of each of March, June, September and December.

SEC source: 0001415889-25-009434 · form4-04012025_100418.xml · nonDerivative · entry 1

McCarthy Brian K. · CIK 0002020217 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 604,217

F1 · kind: Represents the grant of restricted stock units ("RSUs") that vest as follows: 2.5% of the RSUs shall vest on each of the first four Quarterly Vesting Dates (as defined below) that occur following March 15, 2025, and the remainder shall vest in twelve equal installments on each subsequent Quarterly Vesting Date thereafter, in each case subject to the Reporting Person's Continuous Service (as defined in the 2024 Equity Incentive Plan) through each applicable vesting date. "Quarterly Vesting Date" shall mean the 15th of each of March, June, September and December.

SEC source: 0000950170-25-048811 · ownership.xml · nonDerivative · entry 3

Greylock XIV GP LLC · CIK 0001660424 · 10% owner

Greylock XIV Limited Partnership · CIK 0001584740 · 10% owner

Greylock XIV-A Limited Partnership · CIK 0001584722 · 10% owner

Greylock XIV Principals LLC · CIK 0002022202 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Greylock XIV Principals LLC

Disclosed balance after: 124,346

F1 · kind: Represents a pro-rata, in-kind distribution by the Reporting Person and its affiliated funds and associated persons, without additional consideration, to its respective partners, members and/or assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4 · ownership.nature: The shares are held of record by Greylock XIV Principals LLC, or Greylock XIV Principals. Greylock XIV GP is the manager of Greylock XIV Principals. Greylock XIV GP may be deemed to share voting and dispositive power with regard to the shares held directly by Greylock XIV Principals. Greylock XIV GP disclaims beneficial ownership of the securities held by Greylock XIV Principals except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIV GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000950170-25-048811 · ownership.xml · nonDerivative · entry 2

Greylock XIV GP LLC · CIK 0001660424 · 10% owner

Greylock XIV Limited Partnership · CIK 0001584740 · 10% owner

Greylock XIV-A Limited Partnership · CIK 0001584722 · 10% owner

Greylock XIV Principals LLC · CIK 0002022202 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Greylock XIV-A Limited Partnership

Disclosed balance after: 124,346

F1 · kind: Represents a pro-rata, in-kind distribution by the Reporting Person and its affiliated funds and associated persons, without additional consideration, to its respective partners, members and/or assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3 · ownership.nature: The shares are held of record by Greylock XIV-A Limited Partnership, or Greylock XIV-A LP. Greylock XIV GP is the general partner of Greylock XIV-A LP. Greylock XIV GP may be deemed to share voting and dispositive power with regard to the shares held directly by Greylock XIV-A LP. Greylock XIV GP disclaims beneficial ownership of the securities held by Greylock XIV-A LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIV GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0000950170-25-048811 · ownership.xml · nonDerivative · entry 1

Greylock XIV GP LLC · CIK 0001660424 · 10% owner

Greylock XIV Limited Partnership · CIK 0001584740 · 10% owner

Greylock XIV-A Limited Partnership · CIK 0001584722 · 10% owner

Greylock XIV Principals LLC · CIK 0002022202 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Greylock XIV Limited Partnership

Disclosed balance after: 2,238,224

F1 · kind: Represents a pro-rata, in-kind distribution by the Reporting Person and its affiliated funds and associated persons, without additional consideration, to its respective partners, members and/or assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F2 · ownership.nature: The shares are held of record by Greylock XIV Limited Partnership, or Greylock XIV LP. Greylock XIV GP LLC, or Greylock XIV GP, is the general partner of Greylock XIV LP. Greylock XIV GP may be deemed to share voting and dispositive power with regard to the shares held directly by Greylock XIV LP. Greylock XIV GP disclaims beneficial ownership of the securities held by Greylock XIV LP except to the extent of any pecuniary interest therein and the inclusion of these securities in this report shall not be deemed an admission by Greylock XIV GP of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001415889-25-009479 · form4-04022025_120418.xml · nonDerivative · entry 6

Chandna Asheem · CIK 0001392138 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By The Revocable Trust of Asheem Chandna and Aarti Chandna, UDT 4/13/98

Disclosed balance after: 23,242

F7 · kind: Represents 11,621 shares of Class A Common Stock acquired by the Reporting Person in a distribution by Greylock XIV Principals, LLC for no consideration in accordance with the exemptions afforded by Rules 16a-9 and 16a-13 of the Securities Exchange Act of 1934, as amended.

SEC source: 0001415889-25-009479 · form4-04022025_120418.xml · nonDerivative · entry 5

Chandna Asheem · CIK 0001392138 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Asheem Chandna and Aarti Chandna, trustees of the Chandna Children's Trust dated 12/23/2012

Disclosed balance after: 4,648

F6 · kind: Represents 2,324 shares of Class A Common Stock acquired by the Reporting Person in a distribution by Greylock XIV Principals, LLC for no consideration in accordance with the exemptions afforded by Rules 16a-9 and 16a-13 of the Securities Exchange Act of 1934, as amended.

SEC source: 0001415889-25-009479 · form4-04022025_120418.xml · nonDerivative · entry 4

Chandna Asheem · CIK 0001392138 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 564,514

F5 · kind: Represents (i) 268,999 shares of Class A Common Stock acquired by the Reporting Person in a distribution by Greylock XIV Limited Partnership for no consideration and (ii) 14,944 shares of Class A Common Stock acquired by the Reporting Person in a distribution by Greylock XIV-A Limited Partnership for no consideration. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-9 and 16a-13 of the Securities Exchange Act of 1934, as amended.

SEC source: 0001415889-25-009479 · form4-04022025_120418.xml · nonDerivative · entry 3

Chandna Asheem · CIK 0001392138 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Greylock XIV Principals LLC

Disclosed balance after: 124,346

F1 · kind: Represents a pro-rata, in-kind distribution by the Reporting Person and its affiliated funds and associated persons, without additional consideration, to its respective partners, members and/or assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4 · ownership.nature: The shares are held of record by Greylock XIV Principals LLC, or Greylock XIV Principals. Greylock XIV GP is the manager of Greylock XIV Principals. Greylock XIV GP may be deemed to share voting and dispositive power with regard to the shares held directly by Greylock XIV Principals and may be deemed to have indirect beneficial ownership of an indeterminate number of such shares. The Reporting Person is one of the managing members of Greylock XIV GP, and may be deemed to share voting and investment power over the shares held by Greylock XIV Principals. The Reporting Person disclaims beneficial ownership of these shares and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any.

SEC source: 0001415889-25-009479 · form4-04022025_120418.xml · nonDerivative · entry 2

Chandna Asheem · CIK 0001392138 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Greylock XIV-A Limited Partnersip

Disclosed balance after: 124,346

F1 · kind: Represents a pro-rata, in-kind distribution by the Reporting Person and its affiliated funds and associated persons, without additional consideration, to its respective partners, members and/or assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3 · ownership.nature: The shares are held of record by Greylock XIV-A Limited Partnership, or Greylock XIV-A LP. Greylock XIV GP is the general partner of Greylock XIV-A LP. Greylock XIV GP may be deemed to share voting and dispositive power with regard to the shares held directly by Greylock XIV-A LP and may be deemed to have indirect beneficial ownership of an indeterminate number of such shares. The Reporting Person is one of the managing members of Greylock XIV GP, and may be deemed to share voting and investment power over the shares held by Greylock XIV-A LP. The Reporting Person disclaims beneficial ownership of these shares and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any.

SEC source: 0001415889-25-009479 · form4-04022025_120418.xml · nonDerivative · entry 1

Chandna Asheem · CIK 0001392138 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Greylock XIV Limited Partnership

Disclosed balance after: 2,238,224

F1 · kind: Represents a pro-rata, in-kind distribution by the Reporting Person and its affiliated funds and associated persons, without additional consideration, to its respective partners, members and/or assigns. Such distribution was made in accordance with the exemption afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F2 · ownership.nature: The shares are held of record by Greylock XIV Limited Partnership, or Greylock XIV LP. Greylock XIV GP LLC, or Greylock XIV GP, is the general partner of Greylock XIV LP. Greylock XIV GP may be deemed to share voting and dispositive power with regard to the shares held directly by Greylock XIV LP and may be deemed to have indirect beneficial ownership of an indeterminate number of such shares. The Reporting Person is one of the managing members of Greylock XIV GP, and may be deemed to share voting and investment power over the shares held by Greylock XIV LP. The Reporting Person disclaims beneficial ownership of these shares and this report shall not be deemed an admission that he is the beneficial owner of such shares, except to the extent of his pecuniary interest, if any.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · derivative · entry 37

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Affiliates X, L.P

Disclosed balance after: 0

Underlying: Class A Common Stock · 18,084 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.

F40 · derivative.exercise_price: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.exercise_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.expiration_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F7 · ownership.nature: Shares are held by Lightspeed Affiliates X, L.P. ("Lightspeed Affiliates X"). LGP X, is the general partner of Lightspeed Affiliates X. LUGP X is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by Lightspeed Affiliates X. Each of LGP X, LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · derivative · entry 36

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners X, L.P.

Disclosed balance after: 101,659

Underlying: Class A Common Stock · 304,978 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.

F40 · derivative.exercise_price: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.exercise_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.expiration_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F6 · ownership.nature: Shares are held by Lightspeed Venture Partners X, L.P. ("Lightspeed X"). Lightspeed General Partner X, L.P. ("LGP X") is the general partner of Lightspeed X. Lightspeed Ultimate General Partner X, Ltd. ("LUGP X") is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by Lightspeed X. Each of LGP X, LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · derivative · entry 35

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-C, LLC

Disclosed balance after: 2,273,358

Underlying: Class A Common Stock · 758,000 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.

F40 · derivative.exercise_price: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.exercise_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.expiration_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F5 · ownership.nature: Shares are held by Lightspeed SPV I-C, LLC ("Lightspeed SPV I-C"). LS SPV is the manager of Lightspeed SPV I-C. Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I-C. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · derivative · entry 34

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-B, LLC

Disclosed balance after: 3,247,511

Underlying: Class A Common Stock · 1,083,000 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.

F40 · derivative.exercise_price: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.exercise_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.expiration_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F4 · ownership.nature: Shares are held by Lightspeed SPV I-B, LLC ("Lightspeed SPV I-B"). LS SPV is the manager of Lightspeed SPV I-B. Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I-B. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · derivative · entry 33

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I, LLC

Disclosed balance after: 4,511,457

Underlying: Class A Common Stock · 1,504,000 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.

F40 · derivative.exercise_price: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.exercise_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.expiration_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F3 · ownership.nature: Shares are held by Lightspeed SPV I, LLC ("Lightspeed SPV I"). LS SPV Management, LLC ("LS SPV") is the manager of Lightspeed SPV I. Barry Eggers, Ravi Mhatre and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · derivative · entry 32

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners Select II, L.P.

Disclosed balance after: 2,319,410

Underlying: Class A Common Stock · 774,000 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.

F40 · derivative.exercise_price: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.exercise_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.expiration_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F2 · ownership.nature: Shares are held by Lightspeed Venture Partners Select II, L.P. ("Lightspeed Select II"). Lightspeed General Partner Select II, L.P. ("LGP Select II") is the general partner of Lightspeed Select II. Lightspeed Ultimate General Partner Select II, Ltd. ("LUGP Select II") is the general partner of LGP Select II. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP Select II and share voting and dispositive power with respect to the shares held by Lightspeed Select II. Each of LGP Select II, LUGP Select II and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · derivative · entry 31

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,989,816

Underlying: Class A Common Stock · 3,330,000 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.

F40 · derivative.exercise_price: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.exercise_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F40 · derivative.expiration_date: Each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon the sale or transfer of such share of Class B Common Stock, subject to certain exceptions, and in certain other circumstances described in the Issuer's amended and restated certificate of incorporation. Each share of Class B Common Stock is also convertible at any time at the option of the holder into one share of Class A Common Stock.

F1 · ownership.direct: Shares are held by Lightspeed Venture Partners IX, L.P. ("Lightspeed IX"). Lightspeed General Partner IX, L.P. ("LGP IX") is the general partner of Lightspeed IX. Lightspeed Ultimate General Partner IX, Ltd. ("LUGP IX") is the general partner of LGP IX. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP IX and share voting and dispositive power with respect to the shares held by Lightspeed IX. Each of LGP IX, LUGP IX and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 30

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Nieh Family Investments LP - Fund 4

Disclosed balance after: 30,141

F28 · kind: Represents receipt of shares in the distribution in kind described in footnote (15).

F39 · ownership.nature: Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 4.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 29

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Nieh Family Investments LP - Fund 3

Disclosed balance after: 8,387

F29 · kind: Represents receipt of shares in the distribution in kind described in footnote (25).

F38 · ownership.nature: Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 3.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 28

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Nieh Family Investments LP - Fund 2

Disclosed balance after: 250,101

F27 · kind: Represents receipt of shares in the distribution in kind described in footnote (11).

F37 · ownership.nature: Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 2.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 27

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Nieh Family Investments LP - Fund 1

Disclosed balance after: 649

F33 · kind: Represents receipt of shares in the distribution in kind described in footnote (26).

F36 · ownership.nature: Peter Nieh serves as co-trustee of the general partner of Nieh Family Investments LP - Fund 1.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 26

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,221

F31 · kind: Represents receipt of shares in the distribution in kind described in footnote (21).

F35 · ownership.direct: Shares are held by Peter Nieh.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 25

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Eggers Investments LP - Fund 2

Disclosed balance after: 189,279

F27 · kind: Represents receipt of shares in the distribution in kind described in footnote (11).

F28 · kind: Represents receipt of shares in the distribution in kind described in footnote (15).

F29 · kind: Represents receipt of shares in the distribution in kind described in footnote (25).

F33 · kind: Represents receipt of shares in the distribution in kind described in footnote (26).

F34 · ownership.nature: Barry Eggers serves as trustee of the general partner of Eggers Investments LP - Fund 2.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 24

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,221

F31 · kind: Represents receipt of shares in the distribution in kind described in footnote (21).

F32 · ownership.direct: Shares are held by Barry Eggers.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 23

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Management Company, L.L.C.

Disclosed balance after: 13,213

F27 · kind: Represents receipt of shares in the distribution in kind described in footnote (11).

F28 · kind: Represents receipt of shares in the distribution in kind described in footnote (15).

F29 · kind: Represents receipt of shares in the distribution in kind described in footnote (25).

F30 · ownership.nature: Shares are held by Lightspeed Management Company, L.L.C. ("LMC"). Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LMC and share voting and dispositive power with respect to the shares held by LMC. Each of Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 22

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Affiliates X, L.P.

Disclosed balance after: 0

F26 · kind: Represents an in-kind distribution by Lightspeed Affiliates X without consideration to its partners.

F7 · ownership.nature: Shares are held by Lightspeed Affiliates X, L.P. ("Lightspeed Affiliates X"). LGP X, is the general partner of Lightspeed Affiliates X. LUGP X is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by Lightspeed Affiliates X. Each of LGP X, LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 21

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner X, L.P.

Disclosed balance after: 0

F25 · kind: Represents an in-kind distribution by LGP X without consideration to its partners.

F24 · ownership.nature: Shares are held by LGP X. LUGP X is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by LGP X. Each of LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 20

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner X, L.P.

Disclosed balance after: 64,838

F23 · kind: Represents receipt of shares in the distribution in kind described in footnote (22).

F24 · ownership.nature: Shares are held by LGP X. LUGP X is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by LGP X. Each of LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 19

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners X, L.P.

Disclosed balance after: 0

F22 · kind: Represents an in-kind distribution by Lightspeed X without consideration to its partners (including LGP X).

F6 · ownership.nature: Shares are held by Lightspeed Venture Partners X, L.P. ("Lightspeed X"). Lightspeed General Partner X, L.P. ("LGP X") is the general partner of Lightspeed X. Lightspeed Ultimate General Partner X, Ltd. ("LUGP X") is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by Lightspeed X. Each of LGP X, LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 18

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By LS SPV Management, LLC

Disclosed balance after: 0

F21 · kind: Represents an in-kind distribution by LS SPV without consideration to its members.

F20 · ownership.nature: Shares are held by LS SPV. Barry Eggers, Ravi Mhatre and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by LS SPV. Each of Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 17

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By LS SPV Management, LLC

Disclosed balance after: 224,063

F19 · kind: Represents receipt of shares in the distribution in kind described in footnote (16).

F20 · ownership.nature: Shares are held by LS SPV. Barry Eggers, Ravi Mhatre and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by LS SPV. Each of Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 16

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-C, LLC

Disclosed balance after: 0

F18 · kind: Represents an in-kind distribution by Lightspeed SPV I-C without consideration to its members.

F5 · ownership.nature: Shares are held by Lightspeed SPV I-C, LLC ("Lightspeed SPV I-C"). LS SPV is the manager of Lightspeed SPV I-C. Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I-C. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 15

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-B, LLC

Disclosed balance after: 0

F17 · kind: Represents an in-kind distribution by Lightspeed SPV I-B without consideration to its members.

F4 · ownership.nature: Shares are held by Lightspeed SPV I-B, LLC ("Lightspeed SPV I-B"). LS SPV is the manager of Lightspeed SPV I-B. Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I-B. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 14

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I, LLC

Disclosed balance after: 0

F16 · kind: Represents an in-kind distribution by Lightspeed SPV I without consideration to its members.

F3 · ownership.nature: Shares are held by Lightspeed SPV I, LLC ("Lightspeed SPV I"). LS SPV Management, LLC ("LS SPV") is the manager of Lightspeed SPV I. Barry Eggers, Ravi Mhatre and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 13

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner Select II, L.P.

Disclosed balance after: 0

F15 · kind: Represents an in-kind distribution by LGP Select II without consideration to its partners.

F14 · ownership.nature: Shares are held by LGP Select II. LUGP Select II is the general partner of LGP Select II. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP Select II and share voting and dispositive power with respect to the shares held by LGP Select II. Each of LUGP Select II and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 12

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner Select II, L.P.

Disclosed balance after: 145,028

F13 · kind: Represents receipt of shares in the distribution in kind described in footnote (12).

F14 · ownership.nature: Shares are held by LGP Select II. LUGP Select II is the general partner of LGP Select II. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP Select II and share voting and dispositive power with respect to the shares held by LGP Select II. Each of LUGP Select II and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 11

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners Select II, L.P.

Disclosed balance after: 0

F12 · kind: Represents an in-kind distribution by Lightspeed Select II without consideration to its partners (including LGP Select II).

F2 · ownership.nature: Shares are held by Lightspeed Venture Partners Select II, L.P. ("Lightspeed Select II"). Lightspeed General Partner Select II, L.P. ("LGP Select II") is the general partner of Lightspeed Select II. Lightspeed Ultimate General Partner Select II, Ltd. ("LUGP Select II") is the general partner of LGP Select II. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP Select II and share voting and dispositive power with respect to the shares held by Lightspeed Select II. Each of LGP Select II, LUGP Select II and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 10

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner IX, L.P.

Disclosed balance after: 0

F11 · kind: Represents an in-kind distribution by LGP IX without consideration to its partners.

F10 · ownership.nature: Shares are held by LGP IX. LUGP IX is the general partner of LGP IX. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP IX and share voting and dispositive power with respect to the shares held by LGP IX. Each of LUGP IX and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 9

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed General Partner IX, L.P.

Disclosed balance after: 869,963

F9 · kind: Represents receipt of shares in the distribution in kind described in footnote (8).

F10 · ownership.nature: Shares are held by LGP IX. LUGP IX is the general partner of LGP IX. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP IX and share voting and dispositive power with respect to the shares held by LGP IX. Each of LUGP IX and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 8

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F8 · kind: Represents an in-kind distribution by Lightspeed IX without consideration to its partners (including LGP IX).

F1 · ownership.direct: Shares are held by Lightspeed Venture Partners IX, L.P. ("Lightspeed IX"). Lightspeed General Partner IX, L.P. ("LGP IX") is the general partner of Lightspeed IX. Lightspeed Ultimate General Partner IX, Ltd. ("LUGP IX") is the general partner of LGP IX. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP IX and share voting and dispositive power with respect to the shares held by Lightspeed IX. Each of LGP IX, LUGP IX and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 7

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Affiliates X, L.P.

Disclosed balance after: 18,084

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.

F7 · ownership.nature: Shares are held by Lightspeed Affiliates X, L.P. ("Lightspeed Affiliates X"). LGP X, is the general partner of Lightspeed Affiliates X. LUGP X is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by Lightspeed Affiliates X. Each of LGP X, LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 6

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed Venture Partners X, L.P.

Disclosed balance after: 304,978

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

F6 · ownership.nature: Shares are held by Lightspeed Venture Partners X, L.P. ("Lightspeed X"). Lightspeed General Partner X, L.P. ("LGP X") is the general partner of Lightspeed X. Lightspeed Ultimate General Partner X, Ltd. ("LUGP X") is the general partner of LGP X. Barry Eggers, Ravi Mhatre, and Peter Nieh are the directors of LUGP X and share voting and dispositive power with respect to the shares held by Lightspeed X. Each of LGP X, LUGP X and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 5

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-C, LLC

Disclosed balance after: 758,000

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.

F5 · ownership.nature: Shares are held by Lightspeed SPV I-C, LLC ("Lightspeed SPV I-C"). LS SPV is the manager of Lightspeed SPV I-C. Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I-C. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001415889-25-009156 · form4-03282025_120357.xml · nonDerivative · entry 4

Lightspeed SPV I, LLC · CIK 0001703140 · 10% owner

Lightspeed SPV I-B, LLC · CIK 0001759394 · 10% owner

Lightspeed SPV I-C, LLC · CIK 0001827893 · 10% owner

LS SPV Management, LLC · CIK 0001978139 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lightspeed SPV I-B, LLC

Disclosed balance after: 1,083,000

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.

F4 · ownership.nature: Shares are held by Lightspeed SPV I-B, LLC ("Lightspeed SPV I-B"). LS SPV is the manager of Lightspeed SPV I-B. Barry Eggers, Ravi Mhatre, and Peter Nieh are the managing members of LS SPV and share voting and dispositive power with respect to the shares held by Lightspeed SPV I-B. Each of LS SPV and Messrs. Eggers and Nieh disclaims beneficial ownership of these shares except to the extent of its or his respective pecuniary interest therein. Mr. Mhatre is a director of the Issuer and files separate Section 16 reports.