IOT

SEC source: 0001415889-24-010039 · form4-04032024_080452.xml · nonDerivative · entry 1

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 58,493

F1 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bicket-Dobson Trust I (as defined below) and the Bicket-Dobson Trust II (as defined below) on September 29, 2023.

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $33.96 to $34.95, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Bicket-Dobson Trust I u/a/d 11/10/2021, over which the Reporting Person has voting or investment power (the "Bicket-Dobson Trust I").

SEC source: 0001415889-24-010041 · form4-04032024_080421.xml · nonDerivative · entry 4

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 230,400

F1 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Biswas Trust I (as defined below) and the Biswas Trust II (as defined below) on September 29, 2023.

F7 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $34.95 to $35.325, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F6 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust II u/a/d 10/14/2021, over which the Reporting Person has voting or investment power (the "Biswas Trust II").

SEC source: 0001415889-24-010041 · form4-04032024_080421.xml · nonDerivative · entry 3

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 251,844

F1 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Biswas Trust I (as defined below) and the Biswas Trust II (as defined below) on September 29, 2023.

F5 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $33.95 to $34.94, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F6 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust II u/a/d 10/14/2021, over which the Reporting Person has voting or investment power (the "Biswas Trust II").

SEC source: 0001415889-24-010041 · form4-04032024_080421.xml · nonDerivative · entry 2

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 57,600

F1 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Biswas Trust I (as defined below) and the Biswas Trust II (as defined below) on September 29, 2023.

F4 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $34.95 to $35.08, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust I u/a/d 11/11/2021, over which the Reporting Person has voting or investment power (the "Biswas Trust I").

SEC source: 0001415889-24-010041 · form4-04032024_080421.xml · nonDerivative · entry 1

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 58,666

F1 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Biswas Trust I (as defined below) and the Biswas Trust II (as defined below) on September 29, 2023.

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $33.95 to $34.93, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust I u/a/d 11/11/2021, over which the Reporting Person has voting or investment power (the "Biswas Trust I").

SEC source: 0001415889-24-010034 · form4-04032024_080433.xml · nonDerivative · entry 2

Phillips Dominic · CIK 0001895148 · SEE REMARKS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,137,252

F1 · kind: The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan adopted December 21, 2023.

F5 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $37.02 to $37.78, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · balance_after: Certain of these securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

SEC source: 0001415889-24-010034 · form4-04032024_080433.xml · nonDerivative · entry 1

Phillips Dominic · CIK 0001895148 · SEE REMARKS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,140,052

F1 · kind: The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan adopted December 21, 2023.

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.99 to $36.85, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · balance_after: Certain of these securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

F4 · balance_after: The number of shares held reflects the transfer of 21,690 shares of Class A Common Stock from The Phillips Family Trust dated 5/9/2013, of which the Reporting Person and his spouse serve as trustees (the "Phillips Family Trust"), to the Reporting Person.

SEC source: 0001415889-24-009316 · form4-03282024_080336.xml · derivative · entry 9

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 16,774,564

Underlying: Class A Common Stock · 230,400 shares

Expires not disclosed

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

F9 · derivative.exercise_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F9 · derivative.expiration_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F3 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Bicket-Dobson Trust II u/a/d 10/8/2021, over which the Reporting Person has voting or investment power.

SEC source: 0001415889-24-009316 · form4-03282024_080336.xml · derivative · entry 8

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 4,332,364

Underlying: Class A Common Stock · 57,600 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.

F9 · derivative.exercise_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F9 · derivative.expiration_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F2 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Bicket-Dobson Trust I u/a/d 11/10/2021, over which the Reporting Person has voting or investment power.

SEC source: 0001415889-24-009316 · form4-03282024_080336.xml · derivative · entry 7

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 80,131,081

Underlying: Class A Common Stock · 960,000 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.

F9 · derivative.exercise_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F9 · derivative.expiration_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F6 · ownership.nature: Consists of shares held by the Bicket Revocable Trust.

SEC source: 0001415889-24-009316 · form4-03282024_080336.xml · nonDerivative · entry 5

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,211,382

F4 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bicket Revocable Trust on September 29, 2023.

F7 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $39.62 to $39.76, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F6 · ownership.nature: Consists of shares held by the Bicket Revocable Trust.

SEC source: 0001415889-24-009316 · form4-03282024_080336.xml · nonDerivative · entry 4

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,223,200

F4 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bicket Revocable Trust on September 29, 2023.

F5 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $38.62 to $39.615, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F6 · ownership.nature: Consists of shares held by the Bicket Revocable Trust.

SEC source: 0001415889-24-009316 · form4-03282024_080336.xml · nonDerivative · entry 3

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 307,200

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 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Bicket-Dobson Trust II u/a/d 10/8/2021, over which the Reporting Person has voting or investment power.

SEC source: 0001415889-24-009316 · form4-03282024_080336.xml · nonDerivative · entry 2

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 76,800

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 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Bicket-Dobson Trust I u/a/d 11/10/2021, over which the Reporting Person has voting or investment power.

SEC source: 0001415889-24-009316 · form4-03282024_080336.xml · nonDerivative · entry 1

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,307,382

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

F1 · ownership.nature: Consists of shares held by John C. Bicket, Trustee of the John C. Bicket Revocable Trust u/a/d 2/15/2013, over which the Reporting Person has voting or investment power (the "Bicket Revocable Trust").

SEC source: 0001415889-24-009320 · form4-03282024_080340.xml · derivative · entry 9

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 16,774,564

Underlying: Class A Common Stock · 230,400 shares

Expires not disclosed

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

F9 · derivative.exercise_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F9 · derivative.expiration_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F3 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust II u/a/d 10/14/2021, over which the Reporting Person has voting or investment power.

SEC source: 0001415889-24-009320 · form4-03282024_080340.xml · derivative · entry 8

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 4,020,971

Underlying: Class A Common Stock · 57,600 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.

F9 · derivative.exercise_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F9 · derivative.expiration_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F2 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust I u/a/d 11/11/2021, over which the Reporting Person has voting or investment power.

SEC source: 0001415889-24-009320 · form4-03282024_080340.xml · derivative · entry 7

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 81,215,260

Underlying: Class A Common Stock · 960,000 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.

F9 · derivative.exercise_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F9 · derivative.expiration_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F6 · ownership.nature: Consists of shares held by the Biswas Family Trust.

SEC source: 0001415889-24-009320 · form4-03282024_080340.xml · nonDerivative · entry 5

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,307,921

F4 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Biswas Family Trust on September 29, 2023.

F7 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $39.62 to $39.76, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F6 · ownership.nature: Consists of shares held by the Biswas Family Trust.

SEC source: 0001415889-24-009320 · form4-03282024_080340.xml · nonDerivative · entry 4

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,319,457

F4 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Biswas Family Trust on September 29, 2023.

F5 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $38.62 to $39.615, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F6 · ownership.nature: Consists of shares held by the Biswas Family Trust.

SEC source: 0001415889-24-009320 · form4-03282024_080340.xml · nonDerivative · entry 3

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 307,200

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 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust II u/a/d 10/14/2021, over which the Reporting Person has voting or investment power.

SEC source: 0001415889-24-009320 · form4-03282024_080340.xml · nonDerivative · entry 2

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 76,800

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 · ownership.nature: Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust I u/a/d 11/11/2021, over which the Reporting Person has voting or investment power.

SEC source: 0001415889-24-009320 · form4-03282024_080340.xml · nonDerivative · entry 1

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 1,403,921

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: Consists of shares held by SB and HB, Co-Trustees of the Biswas Family Trust u/a/d 7/13/2012, over which the Reporting Person has voting or investment power (the "Biswas Family Trust").

SEC source: 0001415889-24-009323 · form4-03282024_080306.xml · nonDerivative · entry 1

Caimi Lara · CIK 0001868796 · PRESIDENT, WORLDWIDE FIELD OPS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,196,989

F1 · balance_after: Certain of these securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

SEC source: 0000950170-24-035498 · ownership.xml · nonDerivative · entry 4

GC Venture VIII, LLC · CIK 0001764365 · 10% owner

General Catalyst Group VIII, L.P. · CIK 0001663852 · 10% owner

GC Venture VIII-B, LLC · CIK 0001786761 · 10% owner

General Catalyst Group X - Endurance, L.P. · CIK 0001801515 · 10% owner

General Catalyst Group XI - Endurance, L.P. · CIK 0001883723 · 10% owner

GCGM Investment Holdings, LP · CIK 0001774568 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GCGM Investment Holdings, LP

Disclosed balance after: 68,904

F7 · kind: Represents shares previously reported as held through GCVVIII Manager.

F2 · ownership.nature: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GCVVIII, (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.nature: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.nature: (Continued from Footnote 3) Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-035498 · ownership.xml · nonDerivative · entry 3

GC Venture VIII, LLC · CIK 0001764365 · 10% owner

General Catalyst Group VIII, L.P. · CIK 0001663852 · 10% owner

GC Venture VIII-B, LLC · CIK 0001786761 · 10% owner

General Catalyst Group X - Endurance, L.P. · CIK 0001801515 · 10% owner

General Catalyst Group XI - Endurance, L.P. · CIK 0001883723 · 10% owner

GCGM Investment Holdings, LP · CIK 0001774568 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GC Venture VIII Manager, LLC

Disclosed balance after: 0

F6 · kind: Effective March 22, 2024, GCVVIII Manager, a venture capital partnership, distributed in-kind on a pro-rata basis, without consideration, a total of 600,225 shares of Class A Common Stock of the Issuer to its general and limited partners.

F2 · ownership.nature: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GCVVIII, (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.nature: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.nature: (Continued from Footnote 3) Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-035497 · ownership.xml · nonDerivative · entry 4

Taneja Hemant · CIK 0001545563 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GCGM Investment Holdings, LP

Disclosed balance after: 68,904

F7 · kind: Represents shares previously reported as held through GCVVIII Manager.

F2 · ownership.nature: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GCVVIII, (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.nature: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.nature: (Continued from Footnote 3) The Reporting Person is a managing member of GCGMH LLC and a director of the Issuer. Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-035497 · ownership.xml · nonDerivative · entry 3

Taneja Hemant · CIK 0001545563 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GC Venture VIII Manager, LLC

Disclosed balance after: 0

F6 · kind: Effective March 22, 2024, GCVVIII Manager, a venture capital partnership, distributed in-kind on a pro-rata basis, without consideration, a total of 600,225 shares of Class A Common Stock of the Issuer to its general and limited partners.

F2 · ownership.nature: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GCVVIII, (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.nature: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.nature: (Continued from Footnote 3) The Reporting Person is a managing member of GCGMH LLC and a director of the Issuer. Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-036497 · ownership.xml · nonDerivative · entry 1

GCGM Investment Holdings, LP · CIK 0001774568 · 10% owner

General Catalyst Group VIII, L.P. · CIK 0001663852 · 10% owner

GC Venture VIII-B, LLC · CIK 0001786761 · 10% owner

General Catalyst Group X - Endurance, L.P. · CIK 0001801515 · 10% owner

General Catalyst Group XI - Endurance, L.P. · CIK 0001883723 · 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

F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $36.64 to $37.17, inclusive. The Reporting Persons undertakes to provide to the Issuer, any security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote of this Form 4.

F2 · ownership.direct: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GC Venture VIII, LLC ("GCVVIII"), (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.direct: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.direct: (Continued from Footnote 3) Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-036500 · ownership.xml · nonDerivative · entry 1

Taneja Hemant · CIK 0001545563 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GCGM Investment Holdings, LP

Disclosed balance after: 0

F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $36.64 to $37.17, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote of this Form 4.

F2 · ownership.nature: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GC Venture VIII, LLC ("GCVVIII"), (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.nature: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.nature: (Continued from Footnote 3) The Reporting Person is a managing member of GCGMH LLC and a director of the Issuer. Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-24-009044 · form4-03252024_090315.xml · nonDerivative · entry 1

Caimi Lara · CIK 0001868796 · PRESIDENT, WORLDWIDE FIELD OPS

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,216,368

F1 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $37.18 to $37.345, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F2 · balance_after: Certain of these securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

SEC source: 0001415889-24-008873 · form4-03212024_100335.xml · nonDerivative · entry 5

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 347,382

F1 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted on September 29, 2023 by John C. Bicket, Trustee of the John C. Bicket Revocable Trust u/a/d 2/15/2013, over which the Reporting Person has voting or investment power (the "Bicket Revocable Trust").

F5 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.83 to $36.285, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · ownership.nature: Consists of shares held by the Bicket Revocable Trust.

SEC source: 0001415889-24-008878 · form4-03212024_100344.xml · nonDerivative · entry 5

Biswas Sanjit · CIK 0001895111 · Director · CHIEF EXECUTIVE OFFICER · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 443,921

F1 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted on September 29, 2023 by SB and HB, Co-Trustees of the Biswas Family Trust u/a/d 7/13/2012, over which the Reporting Person has voting or investment power (the "Biswas Family Trust").

F5 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.83 to $36.285, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

F3 · ownership.nature: Consists of shares held by the Biswas Family Trust.

SEC source: 0000950170-24-035498 · ownership.xml · nonDerivative · entry 2

GC Venture VIII, LLC · CIK 0001764365 · 10% owner

General Catalyst Group VIII, L.P. · CIK 0001663852 · 10% owner

GC Venture VIII-B, LLC · CIK 0001786761 · 10% owner

General Catalyst Group X - Endurance, L.P. · CIK 0001801515 · 10% owner

General Catalyst Group XI - Endurance, L.P. · CIK 0001883723 · 10% owner

GCGM Investment Holdings, LP · CIK 0001774568 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GC Venture VIII Manager, LLC

Disclosed balance after: 600,225

F5 · kind: Represents shares previously reported as held through GCVVIII.

F2 · ownership.nature: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GCVVIII, (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.nature: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.nature: (Continued from Footnote 3) Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-035498 · ownership.xml · nonDerivative · entry 1

GC Venture VIII, LLC · CIK 0001764365 · 10% owner

General Catalyst Group VIII, L.P. · CIK 0001663852 · 10% owner

GC Venture VIII-B, LLC · CIK 0001786761 · 10% owner

General Catalyst Group X - Endurance, L.P. · CIK 0001801515 · 10% owner

General Catalyst Group XI - Endurance, L.P. · CIK 0001883723 · 10% owner

GCGM Investment Holdings, LP · CIK 0001774568 · 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

F1 · kind: Effective March 20, 2024, GC Venture VIII, LLC ("GCVVIII"), a venture capital partnership, distributed in-kind on a pro-rata basis, without consideration, a total of 3,943,716 shares of Class A Common Stock of the Issuer to its general and limited partners.

F2 · ownership.direct: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GCVVIII, (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.direct: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.direct: (Continued from Footnote 3) Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-035497 · ownership.xml · nonDerivative · entry 2

Taneja Hemant · CIK 0001545563 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GC Venture VIII Manager, LLC

Disclosed balance after: 600,225

F5 · kind: Represents shares previously reported as held through GCVVIII.

F2 · ownership.nature: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GCVVIII, (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.nature: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.nature: (Continued from Footnote 3) The Reporting Person is a managing member of GCGMH LLC and a director of the Issuer. Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0000950170-24-035497 · ownership.xml · nonDerivative · entry 1

Taneja Hemant · CIK 0001545563 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GC Venture VIII, LLC

Disclosed balance after: 0

F1 · kind: Effective March 20, 2024, GC Venture VIII, LLC ("GCVVIII"), a venture capital partnership, distributed in-kind on a pro-rata basis, without consideration, a total of 3,943,716 shares of Class A Common Stock of the Issuer to its general and limited partners.

F2 · ownership.nature: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of GCGM Investment Holdings, LP ("GCGM IH") and General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GCVVIII, (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F3 · ownership.nature: (Continued from Footnote 2) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F4 · ownership.nature: (Continued from Footnote 3) The Reporting Person is a managing member of GCGMH LLC and a director of the Issuer. Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

SEC source: 0001415889-24-008679 · form4-03202024_120352.xml · nonDerivative · entry 4

Eltoukhy Adam · CIK 0001895101 · SEE REMARKS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 535,149

F6 · kind: The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan adopted September 11, 2023.

F9 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $36.29 to $37.00, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · balance_after: Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

SEC source: 0001415889-24-008679 · form4-03202024_120352.xml · nonDerivative · entry 3

Eltoukhy Adam · CIK 0001895101 · SEE REMARKS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 542,586

F6 · kind: The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan adopted September 11, 2023.

F7 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.29 to $36.28, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · balance_after: Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

F8 · balance_after: The number of shares held reflects the transfer of 10,737 shares of Class A Common Stock from the ES Trust to Reporting Person.

SEC source: 0000950170-24-033916 · ownership.xml · derivative · entry 3

GC Venture VIII, LLC · CIK 0001764365 · 10% owner

General Catalyst Group VIII, L.P. · CIK 0001663852 · 10% owner

GC Venture VIII-B, LLC · CIK 0001786761 · 10% owner

General Catalyst Group X - Endurance, L.P. · CIK 0001801515 · 10% owner

General Catalyst Group XI - Endurance, L.P. · CIK 0001883723 · 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

Underlying: Class A Common Stock · 3,943,716 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_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F6 · derivative.expiration_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

SEC source: 0000950170-24-033916 · ownership.xml · nonDerivative · entry 1

GC Venture VIII, LLC · CIK 0001764365 · 10% owner

General Catalyst Group VIII, L.P. · CIK 0001663852 · 10% owner

GC Venture VIII-B, LLC · CIK 0001786761 · 10% owner

General Catalyst Group X - Endurance, L.P. · CIK 0001801515 · 10% owner

General Catalyst Group XI - Endurance, L.P. · CIK 0001883723 · 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: 3,943,716

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.direct: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GC Venture VIII, LLC ("GCVVIII"), (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F2 · ownership.direct: (Continued from Footnote 1) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F3 · ownership.direct: (Continued from Footnote 2) Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

F4 · ownership.direct: Promptly following the conversion of Class B Common Stock to Class A Common Stock of the Issuer, GCVVIII, a venture capital partnership, plans to distribute in-kind on a pro-rata basis, without consideration, a total of 3,943,716 shares of Class A Common Stock of the Issuer to its general and limited partners.

SEC source: 0000950170-24-033914 · ownership.xml · derivative · entry 5

Taneja Hemant · CIK 0001545563 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GC Venture VIII, LLC

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,943,716 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_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F6 · derivative.expiration_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

SEC source: 0000950170-24-033914 · ownership.xml · nonDerivative · entry 1

Taneja Hemant · CIK 0001545563 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Directly held by GC Venture VIII, LLC

Disclosed balance after: 3,943,716

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: General Catalyst Group Management Holdings GP, LLC ("GCGMH LLC") is the general partner of General Catalyst Group Management Holdings, L.P. ("GCGMH"), which is the manager of General Catalyst Group Management, LLC ("GCGM LLC"), which is (a) the manager of GC Venture VIII Manager, LLC ("GCVVIII Manager"), which is the manager of GC Venture VIII, LLC ("GCVVIII"), (b) the manager of GC Venture VIII-B Manager, LLC, which is the manager of GC Venture VIII-B, LLC ("GCVVIIIB"), (c) the manager of General Catalyst GP VIII, LLC ("GCGPVIII"), which is the general partner of General Catalyst Partners VIII, L.P. ("GCPVIII"), which is the general partner of General Catalyst Group VIII, L.P. ("GCGVIII"),

F2 · ownership.nature: (Continued from Footnote 1) GCSE VIII, L.P. ("GCSE") and (d) the manager of General Catalyst GP X - Growth Venture, LLC, which is the general partner of General Catalyst Partners X - Growth Venture, L.P., which is the general partner of General Catalyst Group X - Endurance, L.P. ("GCGXE").

F3 · ownership.nature: (Continued from Footnote 2) The Reporting Person is a managing member of GCGMH LLC and a director of the Issuer. Each party named above disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

F4 · ownership.nature: Promptly following the conversion of Class B Common Stock to Class A Common Stock of the Issuer, GCVVIII, a venture capital partnership, plans to distribute in-kind on a pro-rata basis, without consideration, a total of 3,943,716 shares of Class A Common Stock of the Issuer to its general and limited partners.

SEC source: 0001415889-24-008685 · form4-03202024_120312.xml · nonDerivative · entry 4

Munk James Andrew · CIK 0001794991 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 303,126

F5 · kind: The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan adopted September 27, 2023.

F7 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $36.57 to $37.00, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · balance_after: Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

SEC source: 0001415889-24-008685 · form4-03202024_120312.xml · nonDerivative · entry 3

Munk James Andrew · CIK 0001794991 · CHIEF ACCOUNTING OFFICER

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 305,585

F5 · kind: The sales reported by the Reporting Person were effected pursuant to a Rule 10b5-1 trading plan adopted September 27, 2023.

F6 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.50 to $36.41, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · balance_after: Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

SEC source: 0001415889-24-008873 · form4-03212024_100335.xml · derivative · entry 9

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 81,091,081

Underlying: Class A Common Stock · 344,118 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.

F9 · derivative.exercise_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F9 · derivative.expiration_date: The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis.

F3 · ownership.nature: Consists of shares held by the Bicket Revocable Trust.

SEC source: 0001415889-24-008873 · form4-03212024_100335.xml · nonDerivative · entry 4

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 359,260

F3 · ownership.nature: Consists of shares held by the Bicket Revocable Trust.

SEC source: 0001415889-24-008873 · form4-03212024_100335.xml · nonDerivative · entry 3

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 703,378

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 · ownership.nature: Consists of shares held by the Bicket Revocable Trust.

SEC source: 0001415889-24-008873 · form4-03212024_100335.xml · nonDerivative · entry 2

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 359,260

F1 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted on September 29, 2023 by John C. Bicket, Trustee of the John C. Bicket Revocable Trust u/a/d 2/15/2013, over which the Reporting Person has voting or investment power (the "Bicket Revocable Trust").

F4 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $36.21 to $37.00, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · ownership.nature: Consists of shares held by the Bicket Revocable Trust.

SEC source: 0001415889-24-008873 · form4-03212024_100335.xml · nonDerivative · entry 1

Bicket John · CIK 0001895106 · Director · SEE REMARKS · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · See footnote

Disclosed balance after: 413,523

F1 · kind: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted on September 29, 2023 by John C. Bicket, Trustee of the John C. Bicket Revocable Trust u/a/d 2/15/2013, over which the Reporting Person has voting or investment power (the "Bicket Revocable Trust").

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.205 to $36.20, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · ownership.nature: Consists of shares held by the Bicket Revocable Trust.