TOST

SEC source: 0000899243-21-037923 · doc4.xml · derivative · entry 6

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 0 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F10 · shares: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 162,695 shares of Series E Preferred Stock and 130,345 shares of Series E Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series E Preferred Stock.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F10 · derivative.underlying_shares: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 162,695 shares of Series E Preferred Stock and 130,345 shares of Series E Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series E Preferred Stock.

F4 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and the Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F10 · ownership.nature: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 162,695 shares of Series E Preferred Stock and 130,345 shares of Series E Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series E Preferred Stock.

SEC source: 0000899243-21-037923 · doc4.xml · derivative · entry 5

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 0 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F9 · shares: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 1,416,375 shares of Series D Preferred Stock and 1,134,730 shares of Series D Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series D Preferred Stock.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F9 · derivative.underlying_shares: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 1,416,375 shares of Series D Preferred Stock and 1,134,730 shares of Series D Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series D Preferred Stock.

F4 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and the Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F9 · ownership.nature: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 1,416,375 shares of Series D Preferred Stock and 1,134,730 shares of Series D Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series D Preferred Stock.

SEC source: 0000899243-21-037923 · doc4.xml · derivative · entry 4

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 0 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F8 · shares: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 1,612,415 shares of Series C Preferred Stock and 1,291,790 shares of Series C Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series C Preferred Stock.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F8 · derivative.underlying_shares: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 1,612,415 shares of Series C Preferred Stock and 1,291,790 shares of Series C Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series C Preferred Stock.

F4 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and the Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F8 · ownership.nature: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 1,612,415 shares of Series C Preferred Stock and 1,291,790 shares of Series C Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series C Preferred Stock.

SEC source: 0000899243-21-037923 · doc4.xml · derivative · entry 3

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 0 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F7 · shares: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 22,920,735 shares of Series B Preferred Stock and 18,363,010 shares of Series B Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series B Preferred Stock.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F7 · derivative.underlying_shares: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 22,920,735 shares of Series B Preferred Stock and 18,363,010 shares of Series B Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series B Preferred Stock.

F4 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and the Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

F7 · ownership.nature: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 22,920,735 shares of Series B Preferred Stock and 18,363,010 shares of Series B Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series B Preferred Stock.

SEC source: 0000899243-21-037923 · doc4.xml · nonDerivative · entry 2

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F5 · kind: Immediately prior to the completion of the Issuer's initial public offering and following the conversion of each series of the Issuer's Preferred Stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F3 · shares: Represents 59,604,655 shares of Common Stock converted to Class B Common Stock, as described in footnote (12) below. As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional each own 0 shares of Common Stock.

F5 · price: Immediately prior to the completion of the Issuer's initial public offering and following the conversion of each series of the Issuer's Preferred Stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F3 · balance_after: Represents 59,604,655 shares of Common Stock converted to Class B Common Stock, as described in footnote (12) below. As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional each own 0 shares of Common Stock.

F3 · ownership.nature: Represents 59,604,655 shares of Common Stock converted to Class B Common Stock, as described in footnote (12) below. As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional each own 0 shares of Common Stock.

F4 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and the Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0000899243-21-037923 · doc4.xml · nonDerivative · entry 1

Bennett Richard Kent · CIK 0001860725 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

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

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F2 · shares: Represents shares of Preferred Stock converted to Common Stock as described in footnotes (7) through (11) below. After giving effect to the reported conversion, Bessemer Venture Partners IX, L.P. ("Bessemer IX"), Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional, and together with Bessemer IX, the "Bessemer IX Funds"), Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds") own 30,649,360 shares of Common Stock, 24,554,820 shares of Common Stock, 3,798,490 shares of Common Stock and 601,985 shares of Common Stock, respectively. The Bessemer IX Funds and Bessemer Century Funds shall collectively be referred to herein as the Bessemer Funds.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F2 · balance_after: Represents shares of Preferred Stock converted to Common Stock as described in footnotes (7) through (11) below. After giving effect to the reported conversion, Bessemer Venture Partners IX, L.P. ("Bessemer IX"), Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional, and together with Bessemer IX, the "Bessemer IX Funds"), Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds") own 30,649,360 shares of Common Stock, 24,554,820 shares of Common Stock, 3,798,490 shares of Common Stock and 601,985 shares of Common Stock, respectively. The Bessemer IX Funds and Bessemer Century Funds shall collectively be referred to herein as the Bessemer Funds.

F2 · ownership.nature: Represents shares of Preferred Stock converted to Common Stock as described in footnotes (7) through (11) below. After giving effect to the reported conversion, Bessemer Venture Partners IX, L.P. ("Bessemer IX"), Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional, and together with Bessemer IX, the "Bessemer IX Funds"), Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds") own 30,649,360 shares of Common Stock, 24,554,820 shares of Common Stock, 3,798,490 shares of Common Stock and 601,985 shares of Common Stock, respectively. The Bessemer IX Funds and Bessemer Century Funds shall collectively be referred to herein as the Bessemer Funds.

F4 · ownership.nature: The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer IX Funds and the Bessemer Century Funds by virtue of his interest in (1) Deer IX & Co. L.P., the general partner of the Bessemer IX Funds, and (2) Deer X & Co. L.P., the general partner of the Bessemer Century Funds and (3) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer IX Funds and the Bessemer Century Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer IX Funds and Bessemer Century Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.

SEC source: 0000899243-21-037926 · doc4.xml · derivative · entry 4

Gomez Elena · CIK 0001674159 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 375,000

Underlying: Class B Common Stock · 375,000 shares

Expires 2028-03-22

F4 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F5 · derivative.exercise_date: The RSUs shall vest as follows: 25% shall vest on April 1, 2022, with the remainder vesting in equal quarterly installments over the following three years.

F2 · derivative.underlying: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037926 · doc4.xml · derivative · entry 3

Gomez Elena · CIK 0001674159 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 375,000 shares

Expires 2028-03-22

F4 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F5 · derivative.exercise_date: The RSUs shall vest as follows: 25% shall vest on April 1, 2022, with the remainder vesting in equal quarterly installments over the following three years.

SEC source: 0000899243-21-037926 · doc4.xml · derivative · entry 2

Gomez Elena · CIK 0001674159 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,875,000

Underlying: Class B Common Stock · 1,875,000 shares

Expires 2031-03-22

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F3 · derivative.exercise_date: 20% of the shares subject to this option shall vest and become exercisable on March 8, 2022, with the remainder vesting in sixteen equal quarterly installments thereafter.

F2 · derivative.underlying: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037926 · doc4.xml · derivative · entry 1

Gomez Elena · CIK 0001674159 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,875,000 shares

Expires 2031-03-22

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F3 · derivative.exercise_date: 20% of the shares subject to this option shall vest and become exercisable on March 8, 2022, with the remainder vesting in sixteen equal quarterly installments thereafter.

SEC source: 0000899243-21-037907 · doc4.xml · derivative · entry 7

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,550

Underlying: Class B Common Stock · 9,550 shares

Expires 2028-04-28

F3 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F5 · derivative.exercise_date: The RSUs shall vest in full on May 1, 2022.

F2 · derivative.underlying: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037907 · doc4.xml · derivative · entry 6

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,550 shares

Expires 2028-04-28

F3 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F5 · derivative.exercise_date: The RSUs shall vest in full on May 1, 2022.

SEC source: 0000899243-21-037907 · doc4.xml · derivative · entry 5

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,580

Underlying: Class B Common Stock · 105,580 shares

Expires 2027-04-27

F3 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · derivative.exercise_date: The RSUs shall vest shall vest in two equal annual installments: 50% on April 27, 2022 and 50% on April 27, 2023.

F2 · derivative.underlying: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037907 · doc4.xml · derivative · entry 4

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 105,580 shares

Expires 2027-04-27

F3 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · derivative.exercise_date: The RSUs shall vest shall vest in two equal annual installments: 50% on April 27, 2022 and 50% on April 27, 2023.

SEC source: 0000899243-21-037907 · doc4.xml · derivative · entry 3

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,790

Underlying: Class A Common Stock · 52,790 shares

Expires not disclosed

F2 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037907 · doc4.xml · nonDerivative · entry 2

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,667

SEC source: 0000899243-21-037907 · doc4.xml · nonDerivative · entry 1

Hawkins Mark J · CIK 0001430437 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037905 · doc4.xml · derivative · entry 2

Chapman-Hughes Susan · CIK 0001608495 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,930

Underlying: Class B Common Stock · 22,930 shares

Expires 2028-01-28

F3 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · derivative.exercise_date: The RSUs shall vest in three equal annual installments over three years following January 28, 2021.

F2 · derivative.underlying: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037905 · doc4.xml · derivative · entry 1

Chapman-Hughes Susan · CIK 0001608495 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 22,930 shares

Expires 2028-01-28

F3 · derivative.exercise_price: Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · derivative.exercise_date: The RSUs shall vest in three equal annual installments over three years following January 28, 2021.

SEC source: 0000899243-21-037925 · doc4.xml · derivative · entry 8

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 59,604,655

Underlying: Class A Common Stock · 59,604,655 shares

Expires not disclosed

F7 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F6 · kind: Immediately prior to the completion of the Issuer's initial public offering and following the conversion of each series of the Issuer's Preferred Stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F7 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F7 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F4 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of each of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

F13 · ownership.nature: As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional own 30,649,360 shares of Class B Common Stock, 24,554,820 shares of Class B Common Stock, 3,798,490 shares of Class B Common Stock, and 601,985 shares of Class B Common Stock, respectively.

SEC source: 0000899243-21-037925 · doc4.xml · derivative · entry 7

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 7,700,835 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F4 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of each of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

F12 · ownership.nature: Prior to the conversion, Bessemer IX, Bessemer Insitutional, Bessemer Century and Bessemer Century Institutional owned 1,832,360 shares of Series F Preferred Stock, 1,468,000 shares of Series F Preferred Stock, 3,798,490 shares of Series F Preferred Stock and 601,985 shares of Series F Preferred Stock, respectively. As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional each own 0 shares of Series F Preferred Stock.

SEC source: 0000899243-21-037925 · doc4.xml · derivative · entry 6

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 293,040 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F4 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of each of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

F11 · ownership.nature: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 162,695 shares of Series E Preferred Stock and 130,345 shares of Series E Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series E Preferred Stock.

SEC source: 0000899243-21-037925 · doc4.xml · derivative · entry 5

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 2,551,105 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F4 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of each of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

F10 · ownership.nature: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 1,416,375 shares of Series D Preferred Stock and 1,134,730 shares of Series D Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series D Preferred Stock.

SEC source: 0000899243-21-037925 · doc4.xml · derivative · entry 4

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 2,904,205 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F4 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of each of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

F9 · ownership.nature: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 1,612,415 shares of Series C Preferred Stock and 1,291,790 shares of Series C Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series C Preferred Stock.

SEC source: 0000899243-21-037925 · doc4.xml · derivative · entry 3

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 41,283,745 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F4 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of each of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

F8 · ownership.nature: Prior to the conversion, Bessemer IX and Bessemer Insitutional owned 22,920,735 shares of Series B Preferred Stock and 18,363,010 shares of Series B Preferred Stock, respectively. As of the date hereof, Bessemer IX and Bessemer Institutional each own 0 shares of Series B Preferred Stock.

SEC source: 0000899243-21-037925 · doc4.xml · nonDerivative · entry 2

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F6 · kind: Immediately prior to the completion of the Issuer's initial public offering and following the conversion of each series of the Issuer's Preferred Stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F6 · price: Immediately prior to the completion of the Issuer's initial public offering and following the conversion of each series of the Issuer's Preferred Stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F7 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F3 · ownership.nature: As of the date hereof, Bessemer IX, Bessemer Institutional, Bessemer Century and Bessemer Century Institutional each own 0 shares of Common Stock.

F4 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of each of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

SEC source: 0000899243-21-037925 · doc4.xml · nonDerivative · entry 1

Bessemer Venture Partners IX L.P. · CIK 0001655213 · 10% owner

Bessemer Venture Partners IX Institutional L.P. · CIK 0001624149 · 10% owner

Deer IX & Co. Ltd. · CIK 0001655220 · 10% owner

Deer IX & Co. L.P. · CIK 0001655219 · 10% owner

Bessemer Venture Partners Century Fund L.P. · CIK 0001787478 · 10% owner

Bessemer Venture Partners Century Fund Institutional L.P. · CIK 0001787477 · 10% owner

Deer X & Co. Ltd. · CIK 0001768677 · 10% owner

Deer X & Co. L.P. · CIK 0001768637 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 59,604,655

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

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock and Series F Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F2 · ownership.nature: After giving effect to the reported conversion, Bessemer Venture Partners IX, L.P. ("Bessemer IX"), Bessemer Venture Partners IX Institutional, L.P. ("Bessemer Institutional, and together with Bessemer IX, the "Bessemer IX Funds"), Bessemer Venture Partners Century Fund L.P. ("Bessemer Century") and Bessemer Venture Partners Century Fund Institutional L.P. ("Bessemer Century Institutional", and together with Bessemer Century, the "Bessemer Century Funds") own 30,649,360 shares of Common Stock, 24,554,820 shares of Common Stock, 3,798,490 shares of Common Stock and 601,985 shares of Common Stock, respectively.

F4 · ownership.nature: Deer IX & Co. Ltd. ("Deer IX Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer IX L.P."), which is the general partner of each of the Bessemer IX Funds. Deer IX Ltd. and Deer IX L.P. disclaim beneficial ownership of the securities held by the Bessemer IX Funds, and this report shall not be deemed an admission that Deer IX Ltd. and Deer IX L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer IX Funds.

F5 · ownership.nature: Deer X & Co. Ltd. ("Deer X Ltd.") is the general partner of Deer X & Co. L.P. ("Deer X L.P."), which is the general partner of each of the Bessemer Century Funds. Deer X Ltd. and Deer X L.P. disclaim beneficial ownership of the securities held by the Bessemer Century Funds, and this report shall not be deemed an admission that Deer X Ltd. and Deer X L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the Bessemer Century Funds.

SEC source: 0000899243-21-037924 · doc4.xml · derivative · entry 5

Technology Investment Dining Group, LLC · CIK 0001884213 · 10% owner

Papa Steve · CIK 0001835174 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,297,040

Underlying: Class A Common Stock · 55,297,040 shares

Expires not disclosed

F4 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F3 · kind: Immediately prior to the completion of the Issuer's initial public offering and following the conversion of each series of the Issuer's Preferred Stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F4 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · ownership.direct: The shares are held directly by Technology Investment Dining Group, LLC. These shares are owned indirectly by Steven Papa by virtue of him being the managing member of Technology Investment Dining Group, LLC.

SEC source: 0000899243-21-037924 · doc4.xml · derivative · entry 4

Technology Investment Dining Group, LLC · CIK 0001884213 · 10% owner

Papa Steve · CIK 0001835174 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,279,555 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F2 · ownership.direct: The shares are held directly by Technology Investment Dining Group, LLC. These shares are owned indirectly by Steven Papa by virtue of him being the managing member of Technology Investment Dining Group, LLC.

SEC source: 0000899243-21-037924 · doc4.xml · derivative · entry 3

Technology Investment Dining Group, LLC · CIK 0001884213 · 10% owner

Papa Steve · CIK 0001835174 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18,072,290 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: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F2 · ownership.direct: The shares are held directly by Technology Investment Dining Group, LLC. These shares are owned indirectly by Steven Papa by virtue of him being the managing member of Technology Investment Dining Group, LLC.

SEC source: 0000899243-21-037924 · doc4.xml · nonDerivative · entry 2

Technology Investment Dining Group, LLC · CIK 0001884213 · 10% owner

Papa Steve · CIK 0001835174 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F3 · kind: Immediately prior to the completion of the Issuer's initial public offering and following the conversion of each series of the Issuer's Preferred Stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F3 · price: Immediately prior to the completion of the Issuer's initial public offering and following the conversion of each series of the Issuer's Preferred Stock into Common Stock, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F4 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · ownership.direct: The shares are held directly by Technology Investment Dining Group, LLC. These shares are owned indirectly by Steven Papa by virtue of him being the managing member of Technology Investment Dining Group, LLC.

SEC source: 0000899243-21-037924 · doc4.xml · nonDerivative · entry 1

Technology Investment Dining Group, LLC · CIK 0001884213 · 10% owner

Papa Steve · CIK 0001835174 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,297,040

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

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Series A Preferred Stock and Series B Preferred Stock (together, the "Preferred Stock") automatically converted into one share of the Issuer's Common Stock. The Preferred Stock had no expiration date.

F2 · ownership.direct: The shares are held directly by Technology Investment Dining Group, LLC. These shares are owned indirectly by Steven Papa by virtue of him being the managing member of Technology Investment Dining Group, LLC.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 18

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Class B Common Stock · 50,000 shares

Expires 2028-03-22

F10 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F11 · derivative.exercise_date: The RSUs shall vest as follows: 25% on April 1, 2022, with the remainder vesting in equal quarterly installments over the following three years.

F2 · derivative.underlying: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 17

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 50,000 shares

Expires 2028-03-22

F10 · derivative.exercise_price: The Restricted Stock Units ("RSUs") convert into Class B Common Stock on a one-for-one basis upon vesting and settlement.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F11 · derivative.exercise_date: The RSUs shall vest as follows: 25% on April 1, 2022, with the remainder vesting in equal quarterly installments over the following three years.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 16

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Class B Common Stock · 150,000 shares

Expires 2031-03-22

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F9 · derivative.exercise_date: The shares subject to this option shall vest in twenty equal quarterly installments over five years following March 22, 2021.

F2 · derivative.underlying: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 15

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 150,000 shares

Expires 2031-03-22

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F9 · derivative.exercise_date: The shares subject to this option shall vest in twenty equal quarterly installments over five years following March 22, 2021.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 14

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,425,000

Underlying: Class B Common Stock · 1,425,000 shares

Expires 2029-02-08

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F8 · derivative.exercise_date: The shares subject to this option are fully vested and exercisable as of the date hereof.

F2 · derivative.underlying: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 13

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,425,000 shares

Expires 2029-02-08

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F8 · derivative.exercise_date: The shares subject to this option are fully vested and exercisable as of the date hereof.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 12

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 665,160

Underlying: Class B Common Stock · 665,160 shares

Expires 2029-02-08

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F7 · derivative.exercise_date: The option was originally granted for 3,325,000 shares, of which 2,659,840 shares were early exercised. The shares subject to this option vests as follows: 41,720 shares vest on October 1, 2022, 207,815 shares vest on January 1, 2023, 207,810 shares vest on April 1, 2023, and 207,815 shares vest on July 1, 2023.

F2 · derivative.underlying: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 11

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 665,160 shares

Expires 2029-02-08

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F7 · derivative.exercise_date: The option was originally granted for 3,325,000 shares, of which 2,659,840 shares were early exercised. The shares subject to this option vests as follows: 41,720 shares vest on October 1, 2022, 207,815 shares vest on January 1, 2023, 207,810 shares vest on April 1, 2023, and 207,815 shares vest on July 1, 2023.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 10

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 200,000

Underlying: Class A Common Stock · 200,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F6 · ownership.nature: Shares held by the SCC Irrevocable Trust.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 9

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 200,000

Underlying: Class A Common Stock · 200,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F5 · ownership.nature: Shares held by the EAC Irrevocable Trust.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 8

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 200,000

Underlying: Class A Common Stock · 200,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F4 · ownership.nature: Shares held by the CEC Irrevocable Trust.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 7

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 7,742,420

Underlying: Class A Common Stock · 7,742,420 shares

Expires not disclosed

F2 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F3 · ownership.nature: Shares held by the Comparato Family Holdings Trust dated July 27, 2018.

SEC source: 0000899243-21-037914 · doc4.xml · derivative · entry 6

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,659,840

Underlying: Class A Common Stock · 2,659,840 shares

Expires not disclosed

F2 · derivative.exercise_price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · derivative.exercise_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F2 · derivative.expiration_date: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

SEC source: 0000899243-21-037914 · doc4.xml · nonDerivative · entry 5

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F6 · ownership.nature: Shares held by the SCC Irrevocable Trust.

SEC source: 0000899243-21-037914 · doc4.xml · nonDerivative · entry 4

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F5 · ownership.nature: Shares held by the EAC Irrevocable Trust.

SEC source: 0000899243-21-037914 · doc4.xml · nonDerivative · entry 3

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F4 · ownership.nature: Shares held by the CEC Irrevocable Trust.

SEC source: 0000899243-21-037914 · doc4.xml · nonDerivative · entry 2

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.

F3 · ownership.nature: Shares held by the Comparato Family Holdings Trust dated July 27, 2018.

SEC source: 0000899243-21-037914 · doc4.xml · nonDerivative · entry 1

Comparato Christopher P · CIK 0001868272 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F1 · price: Immediately prior to the completion of the Issuer's initial public offering, each share of Common Stock was reclassified into one share of Class B Common Stock in an exempt transaction pursuant to Rule 16b-7.

F2 · price: Each outstanding share of Class B Common Stock is convertible into one share of Class A Common Stock at any time at the option of the holder or automatically upon the occurrence of other events set forth in the Issuer's certificate of incorporation.