Accel Leaders Fund L.P.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 28

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,226 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F5 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Leaders Fund Investors 2016 L.L.C. and share voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 27

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 5,997 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F5 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Leaders Fund Investors 2016 L.L.C. and share voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 26

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 35,718 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F5 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Leaders Fund Investors 2016 L.L.C. and share voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 25

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 126,963 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F5 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Leaders Fund Investors 2016 L.L.C. and share voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 24

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 158,958 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F5 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Leaders Fund Investors 2016 L.L.C. and share voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 23

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 25,665 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F4 · ownership.nature: Accel Leaders Fund Associates L.L.C., or ALFA, is the General Partner of Accel Leaders Fund L.P. and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of ALFA and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 22

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 125,532 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F4 · ownership.nature: Accel Leaders Fund Associates L.L.C., or ALFA, is the General Partner of Accel Leaders Fund L.P. and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of ALFA and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 21

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 747,579 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F4 · ownership.nature: Accel Leaders Fund Associates L.L.C., or ALFA, is the General Partner of Accel Leaders Fund L.P. and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of ALFA and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 20

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,657,322 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F4 · ownership.nature: Accel Leaders Fund Associates L.L.C., or ALFA, is the General Partner of Accel Leaders Fund L.P. and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of ALFA and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 19

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,326,970 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F4 · ownership.nature: Accel Leaders Fund Associates L.L.C., or ALFA, is the General Partner of Accel Leaders Fund L.P. and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of ALFA and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 18

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,494 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2016 L.L.C. and share the voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 17

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 8,889 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2016 L.L.C. and share the voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 16

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 31,602 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2016 L.L.C. and share the voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 15

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 39,564 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2016 L.L.C. and share the voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 14

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 292,860 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2016 L.L.C. and share the voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 13

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class A Common Stock · 987,330 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2016 L.L.C. and share the voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 12

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 177 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Accel Growth Fund IV Associates L.L.C., or AGF4A, is the General Partner of both Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P., and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of AGF4A and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 11

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,056 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Accel Growth Fund IV Associates L.L.C., or AGF4A, is the General Partner of both Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P., and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of AGF4A and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 10

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 3,759 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Accel Growth Fund IV Associates L.L.C., or AGF4A, is the General Partner of both Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P., and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of AGF4A and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 9

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 4,707 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Accel Growth Fund IV Associates L.L.C., or AGF4A, is the General Partner of both Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P., and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of AGF4A and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 8

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 34,830 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Accel Growth Fund IV Associates L.L.C., or AGF4A, is the General Partner of both Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P., and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of AGF4A and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · derivative · entry 7

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 117,450 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.exercise_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F1 · derivative.expiration_date: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Accel Growth Fund IV Associates L.L.C., or AGF4A, is the General Partner of both Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P., and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of AGF4A and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · nonDerivative · entry 6

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 328,862

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

F1 · price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F5 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Leaders Fund Investors 2016 L.L.C. and share voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · nonDerivative · entry 5

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Leaders Fund L.P.

Disclosed balance after: 6,883,068

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

F1 · price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F4 · ownership.nature: Accel Leaders Fund Associates L.L.C., or ALFA, is the General Partner of Accel Leaders Fund L.P. and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of ALFA and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · nonDerivative · entry 4

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 1,277,282

F3 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2016 L.L.C. and share the voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein

SEC source: 0001209191-21-028113 · doc4.xml · nonDerivative · entry 3

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund Investors 2016 L.L.C.

Disclosed balance after: 1,361,739

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

F1 · price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F3 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2016 L.L.C. and share the voting and investment powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein

SEC source: 0001209191-21-028113 · doc4.xml · nonDerivative · entry 2

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 151,933

F2 · ownership.nature: Accel Growth Fund IV Associates L.L.C., or AGF4A, is the General Partner of both Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P., and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of AGF4A and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001209191-21-028113 · doc4.xml · nonDerivative · entry 1

Accel London V L.P. · CIK 0001672272 · 10% owner

Accel Growth Fund IV Strategic Partners L.P. · CIK 0001673903 · 10% owner

Accel Growth Fund IV Associates L.L.C. · CIK 0001665744 · 10% owner

Accel Growth Fund Investors 2016 L.L.C. · CIK 0001761641 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Accel Growth Fund IV Strategic Partners L.P.

Disclosed balance after: 161,979

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

F1 · price: Each share of Series A-1 Preferred Stock, Series B-1 Preferred Stock, Series B-2 Preferred Stock, Series C-1 Preferred Stock, Series C-2 Preferred Stock, Series D-1 Preferred Stock, Series D-2 Preferred Stock, Series E Preferred Stock automatically converted into one share of Class A Common Stock, without payment of additional consideration, immediately prior to the closing of the Issuer's initial public offering.

F2 · ownership.nature: Accel Growth Fund IV Associates L.L.C., or AGF4A, is the General Partner of both Accel Growth Fund IV L.P. and Accel Growth Fund IV Strategic Partners L.P., and has sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi, Ping Li, Tracy L. Sedlock, Ryan J. Sweeney, and Richard P. Wong are the Managing Members of AGF4A and share such powers. Such managers disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · derivative · entry 12

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel London Investors 2012 L.P.

Disclosed balance after: 92,662

Underlying: Class A common stock · 11,100 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.

F10 · derivative.exercise_date: Each share of Class B common stock is convertible at any time at the option of the Reporting Person into one share of Class A common stock and has no expiration date. All shares of Class B common stock will automatically convert into shares of Class A common stock upon the occurrence of certain specified events.

F10 · derivative.expiration_date: Each share of Class B common stock is convertible at any time at the option of the Reporting Person into one share of Class A common stock and has no expiration date. All shares of Class B common stock will automatically convert into shares of Class A common stock upon the occurrence of certain specified events.

F5 · ownership.nature: These shares are held by Accel London Investors 2012 L.P.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · derivative · entry 11

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel London III L.P.

Disclosed balance after: 4,081,291

Underlying: Class A common stock · 488,900 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.

F10 · derivative.exercise_date: Each share of Class B common stock is convertible at any time at the option of the Reporting Person into one share of Class A common stock and has no expiration date. All shares of Class B common stock will automatically convert into shares of Class A common stock upon the occurrence of certain specified events.

F10 · derivative.expiration_date: Each share of Class B common stock is convertible at any time at the option of the Reporting Person into one share of Class A common stock and has no expiration date. All shares of Class B common stock will automatically convert into shares of Class A common stock upon the occurrence of certain specified events.

F4 · ownership.nature: These shares are held by Accel London III L.P. Accel London III Associates L.P. is the general partner of Accel London III L.P. and has sole voting and dispositive power with regard to the shares held by Accel London III L. P. Accel London III Associates L.L.C. is the general partner of Accel London III Associates L.P. and Accel London Investors 2012 L.P (together with Accel London III L.P., the "Accel London III Entities"). Accel London III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel London III Entities. Each of Accel London III Associates L.P. and Accel London III Associates L.L.C. disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that either such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · derivative · entry 10

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 363,116

Underlying: Class A common stock · 45,600 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.

F10 · derivative.exercise_date: Each share of Class B common stock is convertible at any time at the option of the Reporting Person into one share of Class A common stock and has no expiration date. All shares of Class B common stock will automatically convert into shares of Class A common stock upon the occurrence of certain specified events.

F10 · derivative.expiration_date: Each share of Class B common stock is convertible at any time at the option of the Reporting Person into one share of Class A common stock and has no expiration date. All shares of Class B common stock will automatically convert into shares of Class A common stock upon the occurrence of certain specified events.

F3 · ownership.nature: These shares are held by Accel Leaders Fund Investors 2016 L.L.C.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · derivative · entry 9

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,599,936

Underlying: Class A common stock · 954,400 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.

F10 · derivative.exercise_date: Each share of Class B common stock is convertible at any time at the option of the Reporting Person into one share of Class A common stock and has no expiration date. All shares of Class B common stock will automatically convert into shares of Class A common stock upon the occurrence of certain specified events.

F10 · derivative.expiration_date: Each share of Class B common stock is convertible at any time at the option of the Reporting Person into one share of Class A common stock and has no expiration date. All shares of Class B common stock will automatically convert into shares of Class A common stock upon the occurrence of certain specified events.

F2 · ownership.direct: These shares are held by Accel Leaders Fund L.P. Accel Leaders Fund Associates L.L.C. is the general partner of Accel Leaders Fund L.P. and has the sole voting and dispositive power with regard to the shares held by Accel Leaders Fund L.P. Accel Leaders Fund Associates L.L.C. disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that either such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · nonDerivative · entry 8

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel London Investors 2012 L.P.

Disclosed balance after: 0

F9 · kind: On January 10, 2020, Accel London Investors 2012 L.P. distributed, for no consideration, 11,100 shares of Class A common stock of the Issuer (the "Accel London Investors Shares") to its limited partners and to Accel London III Associates L.L.C., the general partner of Accel London Investors 2012 L.P., representing each such partner's pro rata interest in such Accel London Investors Shares. On that same date, Accel London III Associates L.L.C. distributed, for no consideration, the Accel London Investors Shares it received in the distribution by Accel London Investors 2012 L.P. to its members, representing each such member's pro rata interest in such Accel London Investors Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F5 · ownership.nature: These shares are held by Accel London Investors 2012 L.P.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · nonDerivative · entry 7

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel London III L.P.

Disclosed balance after: 0

F8 · kind: On January 10, 2020, Accel London III L.P. distributed, for no consideration, 488,900 shares of Class A common stock of the Issuer (the "Accel London III Shares") to its limited partners and to Accel London III Associates L.P., the general partner of Accel London III L.P., representing each such partner's pro rata interest in such Accel London III Shares. On the same date, Accel London III Associates L.P. distributed, for no consideration, the Accel London III Shares it received in the distribution by Accel London III L.P. to its limited partners and to Accel London III Associates L.L.C., the general partner of Accel London III Associates L.P., representing each such partner's pro rata interest in such Accel London III Shares. Continued in footnote (11) below.

F11 · kind: Also on that same date, Accel London III Associates L.L.C. distributed, for no consideration, the Accel London III Shares it received in the distribution by Accel London III Associates L.P. to its members, representing each such member's pro rata interest in such Accel London III Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F4 · ownership.nature: These shares are held by Accel London III L.P. Accel London III Associates L.P. is the general partner of Accel London III L.P. and has sole voting and dispositive power with regard to the shares held by Accel London III L. P. Accel London III Associates L.L.C. is the general partner of Accel London III Associates L.P. and Accel London Investors 2012 L.P (together with Accel London III L.P., the "Accel London III Entities"). Accel London III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel London III Entities. Each of Accel London III Associates L.P. and Accel London III Associates L.L.C. disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that either such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · nonDerivative · entry 6

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 29,640

F7 · kind: On January 10, 2020, Accel Leaders Fund Investors 2016 L.L.C. distributed, for no consideration, 45,600 shares of Class A common stock of the Issuer (the "Accel Leaders Fund Investors Shares") to its members, representing each such partner's pro rata interest in such Accel Leaders Fund Investors Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F3 · ownership.nature: These shares are held by Accel Leaders Fund Investors 2016 L.L.C.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · nonDerivative · entry 5

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 620,360

F6 · kind: On January 10, 2020, Accel Leaders Fund L.P. distributed, for no consideration, 954,400 shares of Class A common stock of the Issuer (the "Accel Leaders Fund Shares") to its limited partners and to Accel Leaders Fund Associates L.L.C., the general partner of Accel Leaders Fund L.P., representing each such partner's pro rata interest in such Accel Leaders Fund Shares. On the same date, Accel Leaders Fund Associates L.L.C. distributed, for no consideration, the Accel Leaders Fund Shares it received in the distribution by Accel Leaders Fund L.P. to its members, representing each such member's pro rata interest in such Accel Leaders Fund Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.

F2 · ownership.direct: These shares are held by Accel Leaders Fund L.P. Accel Leaders Fund Associates L.L.C. is the general partner of Accel Leaders Fund L.P. and has the sole voting and dispositive power with regard to the shares held by Accel Leaders Fund L.P. Accel Leaders Fund Associates L.L.C. disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that either such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · nonDerivative · entry 4

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel London Investors 2012 L.P.

Disclosed balance after: 11,100

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

F1 · price: Class B common stock convert into Class A common stock on a one-for-one basis.

F5 · ownership.nature: These shares are held by Accel London Investors 2012 L.P.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · nonDerivative · entry 3

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel London III L.P.

Disclosed balance after: 488,900

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

F1 · price: Class B common stock convert into Class A common stock on a one-for-one basis.

F4 · ownership.nature: These shares are held by Accel London III L.P. Accel London III Associates L.P. is the general partner of Accel London III L.P. and has sole voting and dispositive power with regard to the shares held by Accel London III L. P. Accel London III Associates L.L.C. is the general partner of Accel London III Associates L.P. and Accel London Investors 2012 L.P (together with Accel London III L.P., the "Accel London III Entities"). Accel London III Associates L.L.C. has sole voting and dispositive power with regard to the shares held by the Accel London III Entities. Each of Accel London III Associates L.P. and Accel London III Associates L.L.C. disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that either such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · nonDerivative · entry 2

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 75,240

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

F1 · price: Class B common stock convert into Class A common stock on a one-for-one basis.

F3 · ownership.nature: These shares are held by Accel Leaders Fund Investors 2016 L.L.C.

SEC source: 0000950103-20-000635 · dp119251_4-alflp.xml · nonDerivative · entry 1

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

ACCEL LONDON III LP · CIK 0001453180 · 10% owner

Accel London III Associates L.P. · CIK 0001495005 · 10% owner

Accel London Investors 2012 L.P. · CIK 0001549350 · 10% owner

Accel London III Associates L.L.C. · CIK 0001495004 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,574,760

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

F1 · price: Class B common stock convert into Class A common stock on a one-for-one basis.

F2 · ownership.direct: These shares are held by Accel Leaders Fund L.P. Accel Leaders Fund Associates L.L.C. is the general partner of Accel Leaders Fund L.P. and has the sole voting and dispositive power with regard to the shares held by Accel Leaders Fund L.P. Accel Leaders Fund Associates L.L.C. disclaims Section 16 beneficial ownership over the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that either such reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 31

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class B common stock · 110,805 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.

F12 · derivative.exercise_price: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.exercise_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.expiration_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F6 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi (a director of the Issuer), Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of Accel Leaders Fund Investors 2016 L.L.C. and share voting and investment powers over such shares. Such Managing Members and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 30

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Leaders Fund L.P.

Disclosed balance after: 0

Underlying: Class B common stock · 2,319,127 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.

F12 · derivative.exercise_price: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.exercise_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.expiration_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F5 · ownership.nature: Accel Leaders Fund Associates L.L.C. is the general partner of Accel Leaders Fund L.P. and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi (a director of the Issuer), Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of Accel Leaders Fund Associates L.L.C. and share voting and investment powers over such shares. Such Managing Members and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 29

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Growth Fund Investors 2013 L.L.C.

Disclosed balance after: 0

Underlying: Class B common stock · 55,281 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.

F12 · derivative.exercise_price: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.exercise_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.expiration_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F4 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi (a director of the Issuer), Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2013 L.L.C. and share voting and investment powers over such shares. Such Managing Members and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 28

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Growth Fund II Strategic Partners L.P.

Disclosed balance after: 0

Underlying: Class B common stock · 37,300 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.

F12 · derivative.exercise_price: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.exercise_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.expiration_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F3 · ownership.nature: Accel Growth Fund II Associates L.L.C. is the general partner of Accel Growth Fund II Strategic Partners L.P. and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi (a director of the Issuer), Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of Accel Growth Fund II Associates L.L.C. and share voting and investment powers over such shares. Such Managing Members and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 27

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B common stock · 514,903 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.

F12 · derivative.exercise_price: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.exercise_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F12 · derivative.expiration_date: The Series E Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F2 · ownership.direct: Accel Growth Fund II Associates L.L.C. is the general partner of Accel Growth Fund II L.P. and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi (a director of the Issuer), Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of Accel Growth Fund II Associates L.L.C. and share voting and investment powers over such shares. Such Managing Members and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 26

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel London Investors 2012 L.P.

Disclosed balance after: 0

Underlying: Class B common stock · 17,552 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.

F11 · derivative.exercise_price: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.exercise_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.expiration_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F8 · ownership.nature: Accel London III Associates L.L.C. is the general partner of Accel London Investors 2012 L.P. and has the sole voting and investment power. Jonathan Biggs, Kevin Comolli, Sonali De Rycker, Bruce Golden and Hendrick Nelis are the Managers of Accel London III Associates L.L.C. and share voting and investment powers over such shares. Such Managers and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 25

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel London III L.P.

Disclosed balance after: 0

Underlying: Class B common stock · 773,097 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.

F11 · derivative.exercise_price: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.exercise_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.expiration_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F7 · ownership.nature: Accel London III Associates L.L.C. is the general partner of Accel London III Associates L.P. which is the general partner of Accel London III L.P. and has the sole voting and investment power. Jonathan Biggs, Kevin Comolli, Sonali De Rycker, Bruce Golden and Hendrick Nelis are the Managers of Accel London III Associates L.L.C. and share voting and investment powers over such shares. Such Managers and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 24

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Leaders Fund Investors 2016 L.L.C.

Disclosed balance after: 0

Underlying: Class B common stock · 280,417 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.

F11 · derivative.exercise_price: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.exercise_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.expiration_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F6 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi (a director of the Issuer), Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of Accel Leaders Fund Investors 2016 L.L.C. and share voting and investment powers over such shares. Such Managing Members and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 23

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Leaders Fund L.P.

Disclosed balance after: 0

Underlying: Class B common stock · 5,869,072 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.

F11 · derivative.exercise_price: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.exercise_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.expiration_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F5 · ownership.nature: Accel Leaders Fund Associates L.L.C. is the general partner of Accel Leaders Fund L.P. and has the sole voting and investment power. Andrew G. Braccia, Sameer K. Gandhi (a director of the Issuer), Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of Accel Leaders Fund Associates L.L.C. and share voting and investment powers over such shares. Such Managing Members and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000950103-19-008192 · dp108548_4-accel1.xml · derivative · entry 22

Accel Growth Fund II L.P. · CIK 0001522762 · 10% owner

Accel Growth Fund II Strategic Partners L.P. · CIK 0001527382 · 10% owner

Accel Growth Fund II Associates L.L.C. · CIK 0001531131 · 10% owner

Accel Growth Fund Investors 2013 L.L.C. · CIK 0001611478 · 10% owner

Accel Leaders Fund L.P. · CIK 0001665741 · 10% owner

Accel Leaders Fund Associates L.L.C. · CIK 0001665742 · 10% owner

Accel Leaders Fund Investors 2016 L.L.C. · CIK 0001745434 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Accel Growth Fund Investors 2013 L.L.C.

Disclosed balance after: 0

Underlying: Class B common stock · 167,881 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.

F11 · derivative.exercise_price: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.exercise_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F11 · derivative.expiration_date: The Series D Redeemable Convertible Preferred Stock converted into Class B common stock, without the payment of additional consideration by the holder, immediately prior to the completion of the issuer's initial public offering on a one for one basis. This stock had no expiration date.

F4 · ownership.nature: Andrew G. Braccia, Sameer K. Gandhi (a director of the Issuer), Ping Li, Tracy L. Sedlock, Ryan J. Sweeney and Richard P. Wong are the Managing Members of Accel Growth Fund Investors 2013 L.L.C. and share voting and investment powers over such shares. Such Managing Members and the Reporting Persons hereunder disclaim beneficial ownership except to the extent of their pecuniary interest therein.