AMPL

SEC source: 0000899243-21-037512 · doc4.xml · derivative · entry 2

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,441,146

Underlying: Class A Common Stock · 600,000 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of the holder, (c) the date that is six months following the date on which the holder is no longer an employee or director of the Issuer (unless such holder has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of the holder, (c) the date that is six months following the date on which the holder is no longer an employee or director of the Issuer (unless such holder has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of the holder, (c) the date that is six months following the date on which the holder is no longer an employee or director of the Issuer (unless such holder has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

SEC source: 0000899243-21-037512 · doc4.xml · nonDerivative · entry 1

Skates Spenser · CIK 0001882913 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 600,000

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

F1 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of the holder, (c) the date that is six months following the date on which the holder is no longer an employee or director of the Issuer (unless such holder has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

SEC source: 0000899243-21-037515 · doc4.xml · derivative · entry 2

Heinz Matthew · CIK 0001883017 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 44,247 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

SEC source: 0000899243-21-037515 · doc4.xml · nonDerivative · entry 1

Heinz Matthew · CIK 0001883017 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,247

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

F1 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

SEC source: 0001209191-21-057510 · doc4.xml · derivative · entry 10

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 832,219

Underlying: Class A Common Stock · 356,664 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF"). BP XI SF is the general partner of BV XI-B SF and may be deemed to beneficially own the shares held by BV XI-B SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-B SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057510 · doc4.xml · derivative · entry 9

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 976,058

Underlying: Class A Common Stock · 418,310 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B"). BP XI is the general partner of BV XI-B and may be deemed to beneficially own the shares held by BV XI-B. BP XI 's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-B. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057510 · doc4.xml · derivative · entry 8

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,837,919

Underlying: Class A Common Stock · 1,644,822 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF"). Battery Partners XI Side Fund, LLC ("BP XI SF") is the general partner of BV XI-A SF and may be deemed to beneficially own the shares held by BV XI-A SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-A SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057510 · doc4.xml · derivative · entry 7

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,694,078

Underlying: Class A Common Stock · 1,583,176 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A"). BP XI is the general partner of BV XI-A and may be deemed to beneficially own the shares held by BV XI-A. BP XI's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-A. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057510 · doc4.xml · derivative · entry 6

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 171,206

Underlying: Class A Common Stock · 73,373 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI"). Battery Partners XI, LLC ("BP XI") is the managing member of BIP XI and may be deemed to beneficially own the shares held by BIP XI. BP XI's investment adviser is Battery Management Corp. Neeraj Agrawal, Michael Brown, Jesse Feldman, Russell Fleischer, Roger Lee, Itzik Parnafes, Chelsea Stoner, Dharmesh Thakker, and Scott Tobin (collectively the "BP XI Managing Members") are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BIP XI. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057510 · doc4.xml · nonDerivative · entry 5

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 356,664

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

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

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF"). BP XI SF is the general partner of BV XI-B SF and may be deemed to beneficially own the shares held by BV XI-B SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-B SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057510 · doc4.xml · nonDerivative · entry 4

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 418,310

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

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

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B"). BP XI is the general partner of BV XI-B and may be deemed to beneficially own the shares held by BV XI-B. BP XI 's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-B. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057510 · doc4.xml · nonDerivative · entry 3

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,644,822

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

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

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF"). Battery Partners XI Side Fund, LLC ("BP XI SF") is the general partner of BV XI-A SF and may be deemed to beneficially own the shares held by BV XI-A SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-A SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057510 · doc4.xml · nonDerivative · entry 2

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,583,176

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

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

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A"). BP XI is the general partner of BV XI-A and may be deemed to beneficially own the shares held by BV XI-A. BP XI's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-A. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057510 · doc4.xml · nonDerivative · entry 1

Battery Management Corp. · CIK 0001548594 · 10% owner

BROWN MICHAEL MAURICE · CIK 0001354614 · 10% owner

Feldman Jesse · CIK 0001568322 · 10% owner

FLEISCHER RUSSELL L · CIK 0001108424 · 10% owner

Lee Roger H · CIK 0001404868 · 10% owner

Parnafes Itzik · CIK 0001869729 · 10% owner

Stoner Chelsea R. · CIK 0001741527 · 10% owner

Thakker Dharmesh · CIK 0001869544 · 10% owner

TOBIN SCOTT R · CIK 0001199926 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 73,373

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

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

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI"). Battery Partners XI, LLC ("BP XI") is the managing member of BIP XI and may be deemed to beneficially own the shares held by BIP XI. BP XI's investment adviser is Battery Management Corp. Neeraj Agrawal, Michael Brown, Jesse Feldman, Russell Fleischer, Roger Lee, Itzik Parnafes, Chelsea Stoner, Dharmesh Thakker, and Scott Tobin (collectively the "BP XI Managing Members") are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BIP XI. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057496 · doc4.xml · derivative · entry 4

Institutional Venture Management XV, LLC · CIK 0001640275 · 10% owner

Institutional Venture Partners XV, L.P. · CIK 0001640274 · 10% owner

Chaffee Todd C · CIK 0001300134 · 10% owner

Dash Somesh · CIK 0001843938 · 10% owner

FOGELSONG NORMAN A · CIK 0001140932 · 10% owner

Harrick Stephen J · CIK 0001299975 · 10% owner

Liaw Eric · CIK 0001644264 · 10% owner

Maltz Jules A. · CIK 0001553254 · 10% owner

Miller J Sanford · CIK 0001359524 · 10% owner

Phelps Dennis B · CIK 0001299965 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 291

Underlying: Class A Common Stock · 46,063 shares

Expires not disclosed

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

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

F4 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F4 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F3 · ownership.nature: These shares are owned directly by Institutional Venture Partners XV Executive Fund, L.P., of which IVM XV is the sole general partner and exercises voting and investment power over these shares. The managing directors of IVM XV are Todd C. Chaffee, Somesh Dash, Norman A. Fogelsong, Stephen J. Harrick, Eric Liaw, Jules A. Maltz, J. Sanford Miller and Dennis B. Phelps, Jr. The reporting persons disclaim beneficial ownership of these securities, except to the extent of their respective proportionate pecuniary interest therein and this report shall not be deemed an admission that any reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-21-057496 · doc4.xml · derivative · entry 3

Institutional Venture Management XV, LLC · CIK 0001640275 · 10% owner

Institutional Venture Partners XV, L.P. · CIK 0001640274 · 10% owner

Chaffee Todd C · CIK 0001300134 · 10% owner

Dash Somesh · CIK 0001843938 · 10% owner

FOGELSONG NORMAN A · CIK 0001140932 · 10% owner

Harrick Stephen J · CIK 0001299975 · 10% owner

Liaw Eric · CIK 0001644264 · 10% owner

Maltz Jules A. · CIK 0001553254 · 10% owner

Miller J Sanford · CIK 0001359524 · 10% owner

Phelps Dennis B · CIK 0001299965 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 54,954

Underlying: Class A Common Stock · 8,661,047 shares

Expires not disclosed

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

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

F4 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F4 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: These shares are owned directly by Institutional Venture Partners XV, L.P., of which Institutional Venture Management XV, LLC ("IVM XV") is the sole general partner and exercises voting and investment power over these shares. The managing directors of IVM XV are Todd C. Chaffee, Somesh Dash, Norman A. Fogelsong, Stephen J. Harrick, Eric Liaw, Jules A. Maltz, J. Sanford Miller and Dennis B. Phelps, Jr. The reporting persons disclaim beneficial ownership of these securities, except to the extent of their respective proportionate pecuniary interest therein and this report shall not be deemed an admission that any reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-21-057496 · doc4.xml · nonDerivative · entry 2

Institutional Venture Management XV, LLC · CIK 0001640275 · 10% owner

Institutional Venture Partners XV, L.P. · CIK 0001640274 · 10% owner

Chaffee Todd C · CIK 0001300134 · 10% owner

Dash Somesh · CIK 0001843938 · 10% owner

FOGELSONG NORMAN A · CIK 0001140932 · 10% owner

Harrick Stephen J · CIK 0001299975 · 10% owner

Liaw Eric · CIK 0001644264 · 10% owner

Maltz Jules A. · CIK 0001553254 · 10% owner

Miller J Sanford · CIK 0001359524 · 10% owner

Phelps Dennis B · CIK 0001299965 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 46,063

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

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

F3 · ownership.nature: These shares are owned directly by Institutional Venture Partners XV Executive Fund, L.P., of which IVM XV is the sole general partner and exercises voting and investment power over these shares. The managing directors of IVM XV are Todd C. Chaffee, Somesh Dash, Norman A. Fogelsong, Stephen J. Harrick, Eric Liaw, Jules A. Maltz, J. Sanford Miller and Dennis B. Phelps, Jr. The reporting persons disclaim beneficial ownership of these securities, except to the extent of their respective proportionate pecuniary interest therein and this report shall not be deemed an admission that any reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0001209191-21-057496 · doc4.xml · nonDerivative · entry 1

Institutional Venture Management XV, LLC · CIK 0001640275 · 10% owner

Institutional Venture Partners XV, L.P. · CIK 0001640274 · 10% owner

Chaffee Todd C · CIK 0001300134 · 10% owner

Dash Somesh · CIK 0001843938 · 10% owner

FOGELSONG NORMAN A · CIK 0001140932 · 10% owner

Harrick Stephen J · CIK 0001299975 · 10% owner

Liaw Eric · CIK 0001644264 · 10% owner

Maltz Jules A. · CIK 0001553254 · 10% owner

Miller J Sanford · CIK 0001359524 · 10% owner

Phelps Dennis B · CIK 0001299965 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 8,661,047

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

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

F2 · ownership.nature: These shares are owned directly by Institutional Venture Partners XV, L.P., of which Institutional Venture Management XV, LLC ("IVM XV") is the sole general partner and exercises voting and investment power over these shares. The managing directors of IVM XV are Todd C. Chaffee, Somesh Dash, Norman A. Fogelsong, Stephen J. Harrick, Eric Liaw, Jules A. Maltz, J. Sanford Miller and Dennis B. Phelps, Jr. The reporting persons disclaim beneficial ownership of these securities, except to the extent of their respective proportionate pecuniary interest therein and this report shall not be deemed an admission that any reporting person is the beneficial owner of such securities for Section 16 or any other purpose.

SEC source: 0000899243-21-037513 · doc4.xml · derivative · entry 2

Liu Curtis · CIK 0001883022 · Director · Chief Technology Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 7,240,610

Underlying: Class A Common Stock · 380,000 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of the holder, (c) the date that is six months following the date on which the holder is no longer an employee or director of the Issuer (unless such holder has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of the holder, (c) the date that is six months following the date on which the holder is no longer an employee or director of the Issuer (unless such holder has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of the holder, (c) the date that is six months following the date on which the holder is no longer an employee or director of the Issuer (unless such holder has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Securities held by a trust over which the Reporting Person exercises voting and dispositive control.

SEC source: 0000899243-21-037513 · doc4.xml · nonDerivative · entry 1

Liu Curtis · CIK 0001883022 · Director · Chief Technology Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 380,000

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

F1 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions, (b) the death or incapacity of the holder, (c) the date that is six months following the date on which the holder is no longer an employee or director of the Issuer (unless such holder has rejoined the Issuer during such six-month period) or (d) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Securities held by a trust over which the Reporting Person exercises voting and dispositive control.

SEC source: 0000899243-21-037514 · doc4.xml · derivative · entry 2

Vuong Hoang · CIK 0001883031 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 229,500

Underlying: Class A Common Stock · 48,751 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

SEC source: 0000899243-21-037514 · doc4.xml · nonDerivative · entry 1

Vuong Hoang · CIK 0001883031 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,751

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

F1 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

SEC source: 0001209191-21-057507 · doc4.xml · derivative · entry 10

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 832,219

Underlying: Class A Common Stock · 356,664 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF"). BP XI SF is the general partner of BV XI-B SF and may be deemed to beneficially own the shares held by BV XI-B SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-B SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057507 · doc4.xml · derivative · entry 9

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 976,058

Underlying: Class A Common Stock · 418,310 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B"). BP XI is the general partner of BV XI-B and may be deemed to beneficially own the shares held by BV XI-B. BP XI 's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-B. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057507 · doc4.xml · derivative · entry 8

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,837,919

Underlying: Class A Common Stock · 1,644,822 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF"). Battery Partners XI Side Fund, LLC ("BP XI SF") is the general partner of BV XI-A SF and may be deemed to beneficially own the shares held by BV XI-A SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-A SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057507 · doc4.xml · derivative · entry 7

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,694,078

Underlying: Class A Common Stock · 1,583,176 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A"). BP XI is the general partner of BV XI-A and may be deemed to beneficially own the shares held by BV XI-A. BP XI's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-A. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057507 · doc4.xml · derivative · entry 6

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 171,206

Underlying: Class A Common Stock · 73,373 shares

Expires not disclosed

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

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

F7 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F7 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI"). Battery Partners XI, LLC ("BP XI") is the managing member of BIP XI and may be deemed to beneficially own the shares held by BIP XI. BP XI's investment adviser is Battery Management Corp. Neeraj Agrawal, Michael Brown, Jesse Feldman, Russell Fleischer, Roger Lee, Itzik Parnafes, Chelsea Stoner, Dharmesh Thakker, and Scott Tobin (collectively the "BP XI Managing Members") are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BIP XI. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057507 · doc4.xml · nonDerivative · entry 5

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 356,664

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

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

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF"). BP XI SF is the general partner of BV XI-B SF and may be deemed to beneficially own the shares held by BV XI-B SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-B SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057507 · doc4.xml · nonDerivative · entry 4

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 418,310

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

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

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B"). BP XI is the general partner of BV XI-B and may be deemed to beneficially own the shares held by BV XI-B. BP XI 's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-B. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057507 · doc4.xml · nonDerivative · entry 3

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,644,822

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

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

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF"). Battery Partners XI Side Fund, LLC ("BP XI SF") is the general partner of BV XI-A SF and may be deemed to beneficially own the shares held by BV XI-A SF. BP XI SF's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI SF and may be deemed to share voting and dispositive power over the securities held by BP XI-A SF. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057507 · doc4.xml · nonDerivative · entry 2

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,583,176

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

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

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A"). BP XI is the general partner of BV XI-A and may be deemed to beneficially own the shares held by BV XI-A. BP XI's investment adviser is Battery Management Corp. The BP XI Managing Members are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BP XI-A. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0001209191-21-057507 · doc4.xml · nonDerivative · entry 1

Battery Partners XI, LLC · CIK 0001870316 · 10% owner

Battery Partners XI Side Fund, LLC · CIK 0001869817 · 10% owner

Battery Investment Partners XI, LLC · CIK 0001665602 · 10% owner

Battery Ventures XI-A Side Fund, L.P. · CIK 0001665600 · 10% owner

Battery Ventures XI-A, L.P. · CIK 0001665603 · 10% owner

Battery Ventures XI-B Side Fund, L.P. · CIK 0001665599 · 10% owner

Battery Ventures XI-B, L.P. · CIK 0001665601 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 73,373

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

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

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI"). Battery Partners XI, LLC ("BP XI") is the managing member of BIP XI and may be deemed to beneficially own the shares held by BIP XI. BP XI's investment adviser is Battery Management Corp. Neeraj Agrawal, Michael Brown, Jesse Feldman, Russell Fleischer, Roger Lee, Itzik Parnafes, Chelsea Stoner, Dharmesh Thakker, and Scott Tobin (collectively the "BP XI Managing Members") are the managing members of BP XI and may be deemed to share voting and dispositive power over the securities held by BIP XI. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of his, her or its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of for any other purpose. Mr. Agrawal is a director of the Issuer and files separate Section 16 reports.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 23

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B Common Stock · 312,305 shares

Expires not disclosed

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

F11 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F13 · kind: Transaction is being reported herein pursuant to Rule 16a-2(a).

F11 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F11 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F7 · ownership.nature: Shares held by Battery Investment Partners Select Fund I, L.P. ("BIP Select I").

F8 · ownership.nature: Shares held by Battery Ventures Select Fund I, L.P. ("BV Select I").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 22

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B Common Stock · 261,784 shares

Expires not disclosed

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

F11 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F13 · kind: Transaction is being reported herein pursuant to Rule 16a-2(a).

F11 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F11 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI").

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A").

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF").

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B").

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 21

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B Common Stock · 1,167,118 shares

Expires not disclosed

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

F11 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F13 · kind: Transaction is being reported herein pursuant to Rule 16a-2(a).

F11 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F11 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI").

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A").

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF").

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B").

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 20

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B Common Stock · 1,063,192 shares

Expires not disclosed

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

F11 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F13 · kind: Transaction is being reported herein pursuant to Rule 16a-2(a).

F11 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F11 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI").

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A").

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF").

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B").

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 19

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B Common Stock · 10,818,608 shares

Expires not disclosed

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

F11 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F13 · kind: Transaction is being reported herein pursuant to Rule 16a-2(a).

F11 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F11 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI").

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A").

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF").

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B").

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 18

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Class B Common Stock · 16,156 shares

Expires not disclosed

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

F11 · derivative.exercise_price: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F13 · kind: Transaction is being reported herein pursuant to Rule 16a-2(a).

F11 · derivative.exercise_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F11 · derivative.expiration_date: Each share of Series A, Series B, Series C, Series D, Series E and Series F Preferred Stock was automatically converted into the Issuer's Class B Common Stock on a one-to-one basis at the time of effectiveness of the Issuer's registration statement on Form S-1.

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI").

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A").

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF").

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B").

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 11

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 13,984,637

Underlying: Class A Common Stock · 13,639,163 shares

Expires not disclosed

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

F12 · security: In connection with the reclassification of the Issuer's Common Stock on August 30, 2021, each share of Common Stock held by the Reporting Person was automatically reclassified as Class B Common Stock.

F1 · derivative.exercise_price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI").

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A").

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF").

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B").

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF").

F7 · ownership.nature: Shares held by Battery Investment Partners Select Fund I, L.P. ("BIP Select I").

F8 · ownership.nature: Shares held by Battery Ventures Select Fund I, L.P. ("BV Select I").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 10

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 832,219

Underlying: Class A Common Stock · 356,664 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 9

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 976,058

Underlying: Class A Common Stock · 418,310 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 8

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,837,919

Underlying: Class A Common Stock · 1,644,822 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 7

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 3,694,078

Underlying: Class A Common Stock · 1,583,176 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · derivative · entry 6

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 171,206

Underlying: Class A Common Stock · 73,373 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: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F1 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · nonDerivative · entry 5

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 356,664

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

F1 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F6 · ownership.nature: Shares held by Battery Ventures XI-B Side Fund, L.P. ("BV XI-B SF").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · nonDerivative · entry 4

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 418,310

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

F1 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F5 · ownership.nature: Shares held by Battery Ventures XI-B, L.P. ("BV XI-B").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · nonDerivative · entry 3

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 1,644,822

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

F1 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F4 · ownership.nature: Shares held by Battery Ventures XI-A Side Fund, L.P. ("BV XI-A SF").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · nonDerivative · entry 2

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 1,583,176

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

F1 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F3 · ownership.nature: Shares held by Battery Ventures XI-A, L.P. ("BV XI-A").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0000899243-21-037511 · doc4.xml · nonDerivative · entry 1

Agrawal Neeraj · CIK 0001532809 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 73,373

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

F1 · price: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F2 · ownership.nature: Shares held by Battery Investment Partners XI, LLC ("BIP XI").

F9 · ownership.nature: The sole general partner of BV XI-A and BV XI-B is Battery Partners XI, LLC ("BP XI"). The sole general partner of BV XI-A SF and BV XI-B SF is Battery Partners XI Side Fund, LLC ("BP XI SF"). The sole managing member of BIP XI is BP XI. The sole general partner of BV Select I is Battery Partners Select Fund I, L.P., whose sole general partner is Battery Partners Select Fund I GP, LLC ("BP Select I"). The general partner of BIP Select I is BP Select I. The investment adviser of BP XI, BP XI SF, and BP Select I is Battery Management Corp. (together with BP XI, BP XI SF, and BP Select I, the "Battery Companies").

F10 · ownership.nature: The Reporting Person is a managing member of the Battery Companies and may be deemed to share voting and dispositive power over the securities held by BIP XI, BV XI-A, BV XI-A SF, BV XI-B, BV XI-B SF, BIP Select I, and BV Select I. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.

SEC source: 0001209191-21-057500 · doc4.xml · derivative · entry 4

Institutional Venture Partners XV Executive Fund, L.P. · CIK 0001661321 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 291

Underlying: Class A Common Stock · 46,063 shares

Expires not disclosed

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

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

F4 · derivative.exercise_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F4 · derivative.expiration_date: The Class B Common Stock is convertible at any time at the option of the holder into the Issuer's Class A Common Stock on a one-to-one basis. The Class B Common Stock will convert automatically into shares of the Issuer's Class A Common Stock on a one-to-one basis upon the earlier of (a) any transfer of the Class B Common Stock by the holder, whether or not for value, subject to certain exceptions or (b) the date that is six months following the date on which none of the Issuer's founders is an employee or director of the Issuer (unless a founder has rejoined the Issuer during such six-month period).

F3 · ownership.nature: These shares are owned directly by Institutional Venture Partners XV Executive Fund, L.P., of which IVM XV is the sole general partner and exercises voting and investment power over these shares. The managing directors of IVM XV are Todd C. Chaffee, Somesh Dash, Norman A. Fogelsong, Stephen J. Harrick, Eric Liaw, Jules A. Maltz, J. Sanford Miller and Dennis B. Phelps, Jr. The reporting persons disclaim beneficial ownership of these securities, except to the extent of their respective proportionate pecuniary interest therein and this report shall not be deemed an admission that any reporting person is the beneficial owner of such securities for Section 16 or any other purpose.