DOCS

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · derivative · entry 14

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,000

Underlying: Class A Common Stock · 30,000 shares

Expires not disclosed

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

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · derivative · entry 13

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,000

Underlying: Class A Common Stock · 20,000 shares

Expires not disclosed

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

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · derivative · entry 12

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

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

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · derivative · entry 11

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Class A Common Stock · 100,000 shares

Expires not disclosed

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

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · derivative · entry 10

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,000

Underlying: Class B Common Stock · 30,000 shares

Expires 2030-06-09

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

F3 · derivative.exercise_date: In the event there is a change of control and the Issuer terminates the Reporting Person's employment other than for cause or the Reporting Person terminates his employment with the Issuer as a result of a constructive termination, in either case within 12 months following the consummation of a change of control, 100% of the then-unvested shares subject to the stock option shall vest and become exercisable as of such termination date.

F7 · derivative.exercise_date: In the event that the Issuer terminates the Reporting Person's employment without cause, the then-unvested shares subject to the stock option that would have vested during the six months following the Reporting Person's termination will vest and become exercisable.

F9 · derivative.exercise_date: The stock option shall fully vest upon the date that the Board of Directors of the Issuer (the "Board") determines that certain target milestones related to the Issuer's bookings plan have been achieved, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. In the event that the target milestones are not achieved on or before March 31, 2021, or if the Board does not otherwise determine that the stock option shall vest in whole or in part on or prior to June 30, 2021, the stock option shall expire. The stock option was granted on June 10, 2020.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · derivative · entry 9

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,000

Underlying: Class B Common Stock · 20,000 shares

Expires 2030-06-09

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

F3 · derivative.exercise_date: In the event there is a change of control and the Issuer terminates the Reporting Person's employment other than for cause or the Reporting Person terminates his employment with the Issuer as a result of a constructive termination, in either case within 12 months following the consummation of a change of control, 100% of the then-unvested shares subject to the stock option shall vest and become exercisable as of such termination date.

F7 · derivative.exercise_date: In the event that the Issuer terminates the Reporting Person's employment without cause, the then-unvested shares subject to the stock option that would have vested during the six months following the Reporting Person's termination will vest and become exercisable.

F8 · derivative.exercise_date: The stock option vests in 48 equal monthly installments after May 1, 2020, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. The stock option was granted on June 10, 2020.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · derivative · entry 8

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 310,000

Underlying: Class B Common Stock · 50,000 shares

Expires 2029-02-12

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

F3 · derivative.exercise_date: In the event there is a change of control and the Issuer terminates the Reporting Person's employment other than for cause or the Reporting Person terminates his employment with the Issuer as a result of a constructive termination, in either case within 12 months following the consummation of a change of control, 100% of the then-unvested shares subject to the stock option shall vest and become exercisable as of such termination date.

F6 · derivative.exercise_date: The stock option vests in 48 equal monthly installments following the date that the target milestone related to the achievement of a certain annual contract value in fiscal 2020 was achieved, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. The stock option was granted on February 13, 2019.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · derivative · entry 7

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 260,000

Underlying: Class B Common Stock · 100,000 shares

Expires 2029-02-12

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

F3 · derivative.exercise_date: In the event there is a change of control and the Issuer terminates the Reporting Person's employment other than for cause or the Reporting Person terminates his employment with the Issuer as a result of a constructive termination, in either case within 12 months following the consummation of a change of control, 100% of the then-unvested shares subject to the stock option shall vest and become exercisable as of such termination date.

F4 · derivative.exercise_date: The stock option vests in 48 equal monthly installments after February 28, 2019, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. The stock option was granted on February 13, 2019.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the Issuer's initial public offering; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · nonDerivative · entry 6

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · price: The price represents the weighted-average price of the shares sold in multiple transactions ranging from $75.0000 to $77.6700 per share, inclusive. The Reporting Person undertakes to provide the Issuer, a security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · nonDerivative · entry 5

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 196,021

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · nonDerivative · entry 4

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,000

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

F1 · kind: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F1 · price: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · nonDerivative · entry 3

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,000

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

F1 · kind: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F1 · price: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · nonDerivative · entry 2

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,000

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

F1 · kind: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F1 · price: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

SEC source: 0001516513-21-000018 · wf-form4_162923815852645.xml · nonDerivative · entry 1

Kleine Joseph B. · CIK 0001511114 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

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

F1 · kind: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F1 · price: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

SEC source: 0001628280-21-013078 · wf-form4_162491871570011.xml · derivative · entry 7

Tangney Jeffrey · CIK 0001863328 · Director · Chief Executive Officer · 10% owner

Tangney Annuity Trust, LLC · CIK 0001867907 · 10% owner

Tangney Schweikert Family Trust · CIK 0001868242 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Tangney Schweikert Family Trust

Disclosed balance after: 24,463,330

Underlying: Class A Common Stock · 1,670,718 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.

F3 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F7 · kind: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are owned directly by the Tangney Schweikert Family Trust, a ten percent owner of the Issuer, and indirectly by Mr. Tangney as trustee of such trust. Mr. Tangney is an officer, director and ten percent owner of the Issuer.

SEC source: 0001628280-21-013078 · wf-form4_162491871570011.xml · derivative · entry 6

Tangney Jeffrey · CIK 0001863328 · Director · Chief Executive Officer · 10% owner

Tangney Annuity Trust, LLC · CIK 0001867907 · 10% owner

Tangney Schweikert Family Trust · CIK 0001868242 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Tangney Schweikert Family Trust

Disclosed balance after: 0

Underlying: Class B Common Stock · 550,964 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.

F7 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F7 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F7 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are owned directly by the Tangney Schweikert Family Trust, a ten percent owner of the Issuer, and indirectly by Mr. Tangney as trustee of such trust. Mr. Tangney is an officer, director and ten percent owner of the Issuer.

SEC source: 0001628280-21-013078 · wf-form4_162491871570011.xml · derivative · entry 5

Tangney Jeffrey · CIK 0001863328 · Director · Chief Executive Officer · 10% owner

Tangney Annuity Trust, LLC · CIK 0001867907 · 10% owner

Tangney Schweikert Family Trust · CIK 0001868242 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Tangney Schweikert Family Trust

Disclosed balance after: 0

Underlying: Class B Common Stock · 77,054 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.

F7 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F7 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F7 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are owned directly by the Tangney Schweikert Family Trust, a ten percent owner of the Issuer, and indirectly by Mr. Tangney as trustee of such trust. Mr. Tangney is an officer, director and ten percent owner of the Issuer.

SEC source: 0001628280-21-013078 · wf-form4_162491871570011.xml · derivative · entry 4

Tangney Jeffrey · CIK 0001863328 · Director · Chief Executive Officer · 10% owner

Tangney Annuity Trust, LLC · CIK 0001867907 · 10% owner

Tangney Schweikert Family Trust · CIK 0001868242 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Tangney Schweikert Family Trust

Disclosed balance after: 0

Underlying: Class B Common Stock · 1,042,700 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.

F7 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F7 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F7 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are owned directly by the Tangney Schweikert Family Trust, a ten percent owner of the Issuer, and indirectly by Mr. Tangney as trustee of such trust. Mr. Tangney is an officer, director and ten percent owner of the Issuer.

SEC source: 0001628280-21-013073 · wf-form4_162491849600661.xml · derivative · entry 3

MORGENTHALER VENTURE PARTNERS IX LP · CIK 0001439101 · 10% owner

Morgenthaler Management Partners IX, LLC · CIK 0001666860 · Director

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,070,350

Underlying: Class A Common Stock · 17,070,350 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F1 · kind: Each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Preferred Stock have no expiration date.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.direct: These shares are directly held by Morgenthaler Venture Partners IX, L.P. ("Morgenthaler"). Morgenthaler Management Partners IX, LLC ("MMP IX") is the sole general partner of Morgenthaler. MMP IX may be deemed to indirectly beneficially own the shares held by Morgenthaler, and MMP IX disclaims beneficial ownership of such shares, except to the extent of its pecuniary interest therein.

SEC source: 0001628280-21-013073 · wf-form4_162491849600661.xml · derivative · entry 2

MORGENTHALER VENTURE PARTNERS IX LP · CIK 0001439101 · 10% owner

Morgenthaler Management Partners IX, LLC · CIK 0001666860 · Director

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 · 1,659,476 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 B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Preferred Stock have no expiration date.

F1 · derivative.exercise_date: Each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Preferred Stock have no expiration date.

F1 · derivative.expiration_date: Each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Preferred Stock have no expiration date.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.direct: These shares are directly held by Morgenthaler Venture Partners IX, L.P. ("Morgenthaler"). Morgenthaler Management Partners IX, LLC ("MMP IX") is the sole general partner of Morgenthaler. MMP IX may be deemed to indirectly beneficially own the shares held by Morgenthaler, and MMP IX disclaims beneficial ownership of such shares, except to the extent of its pecuniary interest therein.

SEC source: 0001628280-21-013073 · wf-form4_162491849600661.xml · derivative · entry 1

MORGENTHALER VENTURE PARTNERS IX LP · CIK 0001439101 · 10% owner

Morgenthaler Management Partners IX, LLC · CIK 0001666860 · Director

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 · 15,410,874 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 B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Preferred Stock have no expiration date.

F1 · derivative.exercise_date: Each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Preferred Stock have no expiration date.

F1 · derivative.expiration_date: Each share of Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Preferred Stock have no expiration date.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.direct: These shares are directly held by Morgenthaler Venture Partners IX, L.P. ("Morgenthaler"). Morgenthaler Management Partners IX, LLC ("MMP IX") is the sole general partner of Morgenthaler. MMP IX may be deemed to indirectly beneficially own the shares held by Morgenthaler, and MMP IX disclaims beneficial ownership of such shares, except to the extent of its pecuniary interest therein.

SEC source: 0001628280-21-013077 · wf-form4_162491868260852.xml · derivative · entry 7

INTERWEST PARTNERS X LP · CIK 0001443898 · 10% owner

InterWest Management Partners X, LLC · CIK 0001460207 · 10% owner

Desai Keval · CIK 0001553019 · 10% owner

NASR KHALED · CIK 0001276600 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,156,998

Underlying: Class A Common Stock · 4,289,250 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.

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F1 · kind: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.direct: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X") is the general partner of InterWest. Gilbert H. Kliman is the Managing Director of IMP X. Keval Desai and Khaled Nasr are Venture Members of IMP X. Each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr may be deemed to beneficially own the shares held by InterWest, and each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein.

SEC source: 0001628280-21-013077 · wf-form4_162491868260852.xml · derivative · entry 6

INTERWEST PARTNERS X LP · CIK 0001443898 · 10% owner

InterWest Management Partners X, LLC · CIK 0001460207 · 10% owner

Desai Keval · CIK 0001553019 · 10% owner

NASR KHALED · CIK 0001276600 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,446,248

Underlying: Class A Common Stock · 21,446,248 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.

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F4 · kind: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.direct: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X") is the general partner of InterWest. Gilbert H. Kliman is the Managing Director of IMP X. Keval Desai and Khaled Nasr are Venture Members of IMP X. Each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr may be deemed to beneficially own the shares held by InterWest, and each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein.

SEC source: 0001628280-21-013077 · wf-form4_162491868260852.xml · derivative · entry 5

INTERWEST PARTNERS X LP · CIK 0001443898 · 10% owner

InterWest Management Partners X, LLC · CIK 0001460207 · 10% owner

Desai Keval · CIK 0001553019 · 10% owner

NASR KHALED · CIK 0001276600 · 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 · 2,736,772 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.direct: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X") is the general partner of InterWest. Gilbert H. Kliman is the Managing Director of IMP X. Keval Desai and Khaled Nasr are Venture Members of IMP X. Each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr may be deemed to beneficially own the shares held by InterWest, and each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein.

SEC source: 0001628280-21-013077 · wf-form4_162491868260852.xml · derivative · entry 4

INTERWEST PARTNERS X LP · CIK 0001443898 · 10% owner

InterWest Management Partners X, LLC · CIK 0001460207 · 10% owner

Desai Keval · CIK 0001553019 · 10% owner

NASR KHALED · CIK 0001276600 · 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 · 5,412,972 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.direct: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X") is the general partner of InterWest. Gilbert H. Kliman is the Managing Director of IMP X. Keval Desai and Khaled Nasr are Venture Members of IMP X. Each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr may be deemed to beneficially own the shares held by InterWest, and each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein.

SEC source: 0001628280-21-013077 · wf-form4_162491868260852.xml · derivative · entry 3

INTERWEST PARTNERS X LP · CIK 0001443898 · 10% owner

InterWest Management Partners X, LLC · CIK 0001460207 · 10% owner

Desai Keval · CIK 0001553019 · 10% owner

NASR KHALED · CIK 0001276600 · 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 · 13,296,504 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.direct: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X") is the general partner of InterWest. Gilbert H. Kliman is the Managing Director of IMP X. Keval Desai and Khaled Nasr are Venture Members of IMP X. Each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr may be deemed to beneficially own the shares held by InterWest, and each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein.

SEC source: 0001628280-21-013077 · wf-form4_162491868260852.xml · nonDerivative · entry 2

INTERWEST PARTNERS X LP · CIK 0001443898 · 10% owner

InterWest Management Partners X, LLC · CIK 0001460207 · 10% owner

Desai Keval · CIK 0001553019 · 10% owner

NASR KHALED · CIK 0001276600 · 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

F3 · kind: These shares were sold by InterWest in connection with the Issuer's initial public offering ("IPO") at a net price per share of $24.57 (after underwriting discounts and commissions). InterWest was a selling stockholder in the IPO.

F2 · ownership.direct: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X") is the general partner of InterWest. Gilbert H. Kliman is the Managing Director of IMP X. Keval Desai and Khaled Nasr are Venture Members of IMP X. Each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr may be deemed to beneficially own the shares held by InterWest, and each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein.

SEC source: 0001628280-21-013077 · wf-form4_162491868260852.xml · nonDerivative · entry 1

INTERWEST PARTNERS X LP · CIK 0001443898 · 10% owner

InterWest Management Partners X, LLC · CIK 0001460207 · 10% owner

Desai Keval · CIK 0001553019 · 10% owner

NASR KHALED · CIK 0001276600 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,289,250

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

F1 · kind: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F1 · price: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F2 · ownership.direct: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X") is the general partner of InterWest. Gilbert H. Kliman is the Managing Director of IMP X. Keval Desai and Khaled Nasr are Venture Members of IMP X. Each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr may be deemed to beneficially own the shares held by InterWest, and each of IMP X, Gilbert H. Kliman, Keval Desai and Khaled Nasr disclaims beneficial ownership of such shares, except to the extent of its or his pecuniary interest therein.

SEC source: 0001628280-21-013075 · wf-form4_162491859896490.xml · derivative · entry 5

EMERGENCE CAPITAL PARTNERS II LP · CIK 0001401366 · 10% owner

Emergence Capital Opportunity I, L.P. · CIK 0001858911 · Director

EMERGENCE EQUITY PARTNERS II, L.P. · CIK 0001589107 · 10% owner

Emergence Equity Partners VI, L.P. · CIK 0001868563 · 10% owner

EMERGENCE GP PARTNERS, LLC · CIK 0001589115 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Partners II, L.P.

Disclosed balance after: 24,102,728

Underlying: Class A Common Stock · 23,465,778 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · kind: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F4 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are held directly by Emergence Capital Partners II, L.P. ("ECP II"). The sole general partner of ECP II is Emergence Equity Partners II, L.P. ("EEP II"), and the sole general partner of EEP II is EGP. Each of EEP II and EGP disclaims Section 16 beneficial ownership of the shares held by ECP II, except to the extent, if any, of its pecuniary interest therein, and this report shall not be deemed an admission that it is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013075 · wf-form4_162491859896490.xml · derivative · entry 4

EMERGENCE CAPITAL PARTNERS II LP · CIK 0001401366 · 10% owner

Emergence Capital Opportunity I, L.P. · CIK 0001858911 · Director

EMERGENCE EQUITY PARTNERS II, L.P. · CIK 0001589107 · 10% owner

Emergence Equity Partners VI, L.P. · CIK 0001868563 · 10% owner

EMERGENCE GP PARTNERS, LLC · CIK 0001589115 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Partners II, L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 4,756,302 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.

F3 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are held directly by Emergence Capital Partners II, L.P. ("ECP II"). The sole general partner of ECP II is Emergence Equity Partners II, L.P. ("EEP II"), and the sole general partner of EEP II is EGP. Each of EEP II and EGP disclaims Section 16 beneficial ownership of the shares held by ECP II, except to the extent, if any, of its pecuniary interest therein, and this report shall not be deemed an admission that it is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013075 · wf-form4_162491859896490.xml · derivative · entry 3

EMERGENCE CAPITAL PARTNERS II LP · CIK 0001401366 · 10% owner

Emergence Capital Opportunity I, L.P. · CIK 0001858911 · Director

EMERGENCE EQUITY PARTNERS II, L.P. · CIK 0001589107 · 10% owner

Emergence Equity Partners VI, L.P. · CIK 0001868563 · 10% owner

EMERGENCE GP PARTNERS, LLC · CIK 0001589115 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Partners II, L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 5,412,972 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.

F3 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are held directly by Emergence Capital Partners II, L.P. ("ECP II"). The sole general partner of ECP II is Emergence Equity Partners II, L.P. ("EEP II"), and the sole general partner of EEP II is EGP. Each of EEP II and EGP disclaims Section 16 beneficial ownership of the shares held by ECP II, except to the extent, if any, of its pecuniary interest therein, and this report shall not be deemed an admission that it is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013075 · wf-form4_162491859896490.xml · derivative · entry 2

EMERGENCE CAPITAL PARTNERS II LP · CIK 0001401366 · 10% owner

Emergence Capital Opportunity I, L.P. · CIK 0001858911 · Director

EMERGENCE EQUITY PARTNERS II, L.P. · CIK 0001589107 · 10% owner

Emergence Equity Partners VI, L.P. · CIK 0001868563 · 10% owner

EMERGENCE GP PARTNERS, LLC · CIK 0001589115 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Partners II, L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 13,296,504 shares

Expires not disclosed

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

F3 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are held directly by Emergence Capital Partners II, L.P. ("ECP II"). The sole general partner of ECP II is Emergence Equity Partners II, L.P. ("EEP II"), and the sole general partner of EEP II is EGP. Each of EEP II and EGP disclaims Section 16 beneficial ownership of the shares held by ECP II, except to the extent, if any, of its pecuniary interest therein, and this report shall not be deemed an admission that it is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013075 · wf-form4_162491859896490.xml · nonDerivative · entry 1

EMERGENCE CAPITAL PARTNERS II LP · CIK 0001401366 · 10% owner

Emergence Capital Opportunity I, L.P. · CIK 0001858911 · Director

EMERGENCE EQUITY PARTNERS II, L.P. · CIK 0001589107 · 10% owner

Emergence Equity Partners VI, L.P. · CIK 0001868563 · 10% owner

EMERGENCE GP PARTNERS, LLC · CIK 0001589115 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Opportunity I, L.P.

Disclosed balance after: 775,000

F1 · price: Reflects shares of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), Emergence Capital Opportunity I, L.P. ("ECO I") purchased in the Issuer's initial public offering ("IPO") at the IPO price of $26.00 per share.

F2 · ownership.nature: These shares are held directly by ECO I. The sole general partner of ECO I is Emergence Equity Partners VI, L.P. ("EEP VI"), and the sole general partner of EEP VI is Emergence GP Partners, LLC ("EGP"). Each of EEP VI and EGP disclaims Section 16 beneficial ownership of the shares held by ECO I, except to the extent, if any, of its pecuniary interest therein, and this report shall not be deemed an admission that it is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013074 · wf-form4_162491854483661.xml · derivative · entry 7

Kliman Gilbert H · CIK 0001293171 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By InterWest Partners X, L.P.

Disclosed balance after: 17,156,998

Underlying: Class A Common Stock · 4,289,250 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.

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F1 · kind: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.nature: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X"), as the general partner of InterWest, may be deemed to beneficially own the shares held by InterWest. The Reporting Person is the Managing Director of IMP X, and as such may be deemed to beneficially own the shares held by InterWest. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

SEC source: 0001628280-21-013074 · wf-form4_162491854483661.xml · derivative · entry 6

Kliman Gilbert H · CIK 0001293171 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By InterWest Partners X, L.P.

Disclosed balance after: 21,446,248

Underlying: Class A Common Stock · 21,446,248 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.

F5 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F4 · kind: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F5 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.nature: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X"), as the general partner of InterWest, may be deemed to beneficially own the shares held by InterWest. The Reporting Person is the Managing Director of IMP X, and as such may be deemed to beneficially own the shares held by InterWest. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

SEC source: 0001628280-21-013074 · wf-form4_162491854483661.xml · derivative · entry 5

Kliman Gilbert H · CIK 0001293171 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By InterWest Partners X, L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 2,736,772 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.nature: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X"), as the general partner of InterWest, may be deemed to beneficially own the shares held by InterWest. The Reporting Person is the Managing Director of IMP X, and as such may be deemed to beneficially own the shares held by InterWest. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

SEC source: 0001628280-21-013074 · wf-form4_162491854483661.xml · derivative · entry 4

Kliman Gilbert H · CIK 0001293171 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By InterWest Partners X, L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 5,412,972 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.nature: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X"), as the general partner of InterWest, may be deemed to beneficially own the shares held by InterWest. The Reporting Person is the Managing Director of IMP X, and as such may be deemed to beneficially own the shares held by InterWest. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

SEC source: 0001628280-21-013074 · wf-form4_162491854483661.xml · derivative · entry 3

Kliman Gilbert H · CIK 0001293171 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By InterWest Partners X, L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 13,296,504 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F5 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · ownership.nature: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X"), as the general partner of InterWest, may be deemed to beneficially own the shares held by InterWest. The Reporting Person is the Managing Director of IMP X, and as such may be deemed to beneficially own the shares held by InterWest. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

SEC source: 0001628280-21-013074 · wf-form4_162491854483661.xml · nonDerivative · entry 2

Kliman Gilbert H · CIK 0001293171 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By InterWest Partners X, L.P.

Disclosed balance after: 0

F3 · kind: These shares were sold by InterWest in connection with the Issuer's initial public offering ("IPO") at a net price per share of $24.57 (after underwriting discounts and commissions). InterWest was a selling stockholder in the IPO.

F2 · ownership.nature: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X"), as the general partner of InterWest, may be deemed to beneficially own the shares held by InterWest. The Reporting Person is the Managing Director of IMP X, and as such may be deemed to beneficially own the shares held by InterWest. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

SEC source: 0001628280-21-013074 · wf-form4_162491854483661.xml · nonDerivative · entry 1

Kliman Gilbert H · CIK 0001293171 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By InterWest Partners X, L.P.

Disclosed balance after: 4,289,250

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

F1 · kind: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F1 · price: Each share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), converted into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at the option of the holder.

F2 · ownership.nature: These shares are directly held by InterWest Partners X, L.P. ("InterWest"). InterWest Management Partners X, LLC ("IMP X"), as the general partner of InterWest, may be deemed to beneficially own the shares held by InterWest. The Reporting Person is the Managing Director of IMP X, and as such may be deemed to beneficially own the shares held by InterWest. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

SEC source: 0001628280-21-013079 · wf-form4_162492083209097.xml · derivative · entry 4

Threshold Ventures I, L.P. · CIK 0001598990 · 10% owner

Threshold Ventures I Partners Fund, LLC · CIK 0001598991 · 10% owner

Threshold Ventures I General Partner, LLC · CIK 0001598987 · 10% owner

Stein Josh · CIK 0001606417 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Threshold Ventures I Partners Fund, LLC

Disclosed balance after: 518,586

Underlying: Class A Common Stock · 518,586 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F1 · kind: Each share of Series C Preferred Stock automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Series C Preferred Stock have no expiration date.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F4 · ownership.direct: These shares are directly held by Threshold Ventures I Partners Fund, LLC ("Threshold I Partners"). Josh Stein and Andreas Stavropoulos, the voting members of Threshold I Partners, may be deemed to have shared voting, investment and dispositive power over the shares held by Threshold I Partners. Such individuals disclaim beneficial ownership of such shares except to the extent of their pecuniary interest therein.

F4 · ownership.nature: These shares are directly held by Threshold Ventures I Partners Fund, LLC ("Threshold I Partners"). Josh Stein and Andreas Stavropoulos, the voting members of Threshold I Partners, may be deemed to have shared voting, investment and dispositive power over the shares held by Threshold I Partners. Such individuals disclaim beneficial ownership of such shares except to the extent of their pecuniary interest therein.

SEC source: 0001628280-21-013079 · wf-form4_162492083209097.xml · derivative · entry 3

Threshold Ventures I, L.P. · CIK 0001598990 · 10% owner

Threshold Ventures I Partners Fund, LLC · CIK 0001598991 · 10% owner

Threshold Ventures I General Partner, LLC · CIK 0001598987 · 10% owner

Stein Josh · CIK 0001606417 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,667,276

Underlying: Class A Common Stock · 4,667,276 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F1 · kind: Each share of Series C Preferred Stock automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Series C Preferred Stock have no expiration date.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.direct: These shares are directly held by Threshold Ventures I, L.P. ("Threshold I"). Threshold Ventures I General Partner, LLC ("Threshold I GP") is the general partner of Threshold I and may be deemed to have sole voting, investment and dispositive power over the shares held by Threshold I. Threshold I GP may be deemed to have sole voting, investment and dispositive power over the shares held by Threshold I GP. Josh Stein and Andreas Stavropoulos, the managing members of Threshold I GP, may be deemed to have shared voting, investment and dispositive power over such shares. Such individuals and entities disclaim beneficial ownership of such shares except to the extent of their pecuniary interest therein.

SEC source: 0001628280-21-013079 · wf-form4_162492083209097.xml · derivative · entry 2

Threshold Ventures I, L.P. · CIK 0001598990 · 10% owner

Threshold Ventures I Partners Fund, LLC · CIK 0001598991 · 10% owner

Threshold Ventures I General Partner, LLC · CIK 0001598987 · 10% owner

Stein Josh · CIK 0001606417 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Threshold Ventures I Partners Fund, LLC

Disclosed balance after: 0

Underlying: Class B Common Stock · 518,586 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 C Preferred Stock automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Series C Preferred Stock have no expiration date.

F1 · derivative.exercise_date: Each share of Series C Preferred Stock automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Series C Preferred Stock have no expiration date.

F1 · derivative.expiration_date: Each share of Series C Preferred Stock automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Series C Preferred Stock have no expiration date.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F4 · ownership.direct: These shares are directly held by Threshold Ventures I Partners Fund, LLC ("Threshold I Partners"). Josh Stein and Andreas Stavropoulos, the voting members of Threshold I Partners, may be deemed to have shared voting, investment and dispositive power over the shares held by Threshold I Partners. Such individuals disclaim beneficial ownership of such shares except to the extent of their pecuniary interest therein.

F4 · ownership.nature: These shares are directly held by Threshold Ventures I Partners Fund, LLC ("Threshold I Partners"). Josh Stein and Andreas Stavropoulos, the voting members of Threshold I Partners, may be deemed to have shared voting, investment and dispositive power over the shares held by Threshold I Partners. Such individuals disclaim beneficial ownership of such shares except to the extent of their pecuniary interest therein.

SEC source: 0001628280-21-013079 · wf-form4_162492083209097.xml · derivative · entry 1

Threshold Ventures I, L.P. · CIK 0001598990 · 10% owner

Threshold Ventures I Partners Fund, LLC · CIK 0001598991 · 10% owner

Threshold Ventures I General Partner, LLC · CIK 0001598987 · 10% owner

Stein Josh · CIK 0001606417 · 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 · 4,667,276 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 C Preferred Stock automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Series C Preferred Stock have no expiration date.

F1 · derivative.exercise_date: Each share of Series C Preferred Stock automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Series C Preferred Stock have no expiration date.

F1 · derivative.expiration_date: Each share of Series C Preferred Stock automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Series C Preferred Stock have no expiration date.

F2 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · ownership.direct: These shares are directly held by Threshold Ventures I, L.P. ("Threshold I"). Threshold Ventures I General Partner, LLC ("Threshold I GP") is the general partner of Threshold I and may be deemed to have sole voting, investment and dispositive power over the shares held by Threshold I. Threshold I GP may be deemed to have sole voting, investment and dispositive power over the shares held by Threshold I GP. Josh Stein and Andreas Stavropoulos, the managing members of Threshold I GP, may be deemed to have shared voting, investment and dispositive power over such shares. Such individuals and entities disclaim beneficial ownership of such shares except to the extent of their pecuniary interest therein.

SEC source: 0001628280-21-013076 · wf-form4_162491863443384.xml · derivative · entry 5

Spain Kevin · CIK 0001586891 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Partners II, L.P.

Disclosed balance after: 24,102,728

Underlying: Class A Common Stock · 23,465,778 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F3 · kind: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F4 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are held directly by Emergence Capital Partners II, L.P. ("ECP II"). The sole general partner of ECP II is Emergence Equity Partners II, L.P. ("EEP II"), and the sole general partner of EEP II is EGP. The Reporting Person is a member of EEP II. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by ECP II, except to the extent, if any, of his pecuniary interest therein, and this report shall not be deemed an admission that he is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013076 · wf-form4_162491863443384.xml · derivative · entry 4

Spain Kevin · CIK 0001586891 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Partners II, L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 4,756,302 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.

F3 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are held directly by Emergence Capital Partners II, L.P. ("ECP II"). The sole general partner of ECP II is Emergence Equity Partners II, L.P. ("EEP II"), and the sole general partner of EEP II is EGP. The Reporting Person is a member of EEP II. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by ECP II, except to the extent, if any, of his pecuniary interest therein, and this report shall not be deemed an admission that he is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013076 · wf-form4_162491863443384.xml · derivative · entry 3

Spain Kevin · CIK 0001586891 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Partners II, L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 5,412,972 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.

F3 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are held directly by Emergence Capital Partners II, L.P. ("ECP II"). The sole general partner of ECP II is Emergence Equity Partners II, L.P. ("EEP II"), and the sole general partner of EEP II is EGP. The Reporting Person is a member of EEP II. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by ECP II, except to the extent, if any, of his pecuniary interest therein, and this report shall not be deemed an admission that he is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013076 · wf-form4_162491863443384.xml · derivative · entry 2

Spain Kevin · CIK 0001586891 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Partners II, L.P.

Disclosed balance after: 0

Underlying: Class B Common Stock · 13,296,504 shares

Expires not disclosed

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

F3 · derivative.exercise_price: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.exercise_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F3 · derivative.expiration_date: Each share of Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the IPO. The shares of Preferred Stock have no expiration date.

F4 · derivative.underlying: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F5 · ownership.nature: These shares are held directly by Emergence Capital Partners II, L.P. ("ECP II"). The sole general partner of ECP II is Emergence Equity Partners II, L.P. ("EEP II"), and the sole general partner of EEP II is EGP. The Reporting Person is a member of EEP II. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by ECP II, except to the extent, if any, of his pecuniary interest therein, and this report shall not be deemed an admission that he is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013076 · wf-form4_162491863443384.xml · nonDerivative · entry 1

Spain Kevin · CIK 0001586891 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Emergence Capital Opportunity I, L.P.

Disclosed balance after: 775,000

F1 · price: Reflects shares of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), Emergence Capital Opportunity I, L.P. ("ECO I") purchased in the Issuer's initial public offering ("IPO") at the IPO price of $26.00 per share.

F2 · ownership.nature: These shares are held directly by ECO I. The sole general partner of ECO I is Emergence Equity Partners VI, L.P. ("EEP VI"), and the sole general partner of EEP VI is Emergence GP Partners, LLC ("EGP"). The Reporting Person is a member of EEP VI. The Reporting Person disclaims Section 16 beneficial ownership of the shares held by ECO I, except to the extent, if any, of his pecuniary interest therein, and this report shall not be deemed an admission that he is the beneficial owner of such shares for Section 16 or any other purpose.

SEC source: 0001628280-21-013123 · wf-form4_162500370241139.xml · derivative · entry 4

Stavropoulos Andreas · CIK 0001613908 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Threshold Ventures I Partners Fund, LLC

Disclosed balance after: 518,586

Underlying: Class A Common Stock · 518,586 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F1 · kind: Each share of Series C Preferred Stock automatically converted into one share of Class B Common Stock, par value $0.001 per share (the "Class B Common Stock"), on a one-for-one basis, immediately prior to the closing of the Issuer's initial public offering ("IPO"). The shares of Series C Preferred Stock have no expiration date.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock, par value $0.001 per share (the "Class A Common Stock"), at any time at the option of the holder. Each share of Class B Common Stock held by the Reporting Person will automatically convert into one share of Class A Common Stock, upon the following: (1) the sale or transfer of such share of Class B Common Stock, except for certain permitted transfers described in the Issuer's amended and restated certificate of incorporation; (2) the death or incapacity of the Reporting Person; and (3) on the final conversion date, defined as the earlier of (a) the tenth anniversary of the effectiveness of the registration statement in connection with the IPO; or (b) the date specified by a vote of the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, voting as a single class.

F4 · ownership.direct: These shares are directly held by Threshold Ventures I Partners Fund, LLC ("Threshold I Partners"). The Reporting Person is a voting member of Threshold I Partners, and as such may be deemed to have shared voting, investment and dispositive power over the shares held by Threshold I Partners. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

F4 · ownership.nature: These shares are directly held by Threshold Ventures I Partners Fund, LLC ("Threshold I Partners"). The Reporting Person is a voting member of Threshold I Partners, and as such may be deemed to have shared voting, investment and dispositive power over the shares held by Threshold I Partners. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.