Saxonov Serge

SEC source: 0001209191-20-017554 · doc4.xml · nonDerivative · entry 5

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 941,301

F1 · kind: The option exercises and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the Reporting Person.

F4 · price: This transaction was executed in multiple trades at prices ranging from $64.40 to $65.24. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

SEC source: 0001209191-20-017554 · doc4.xml · nonDerivative · entry 4

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 942,399

F1 · kind: The option exercises and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the Reporting Person.

F3 · price: This transaction was executed in multiple trades at prices ranging from $63.405 to $64.38. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

SEC source: 0001209191-20-017554 · doc4.xml · nonDerivative · entry 3

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 946,166

F1 · kind: The option exercises and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the Reporting Person.

F2 · price: This transaction was executed in multiple trades at prices ranging from $62.39 to $63.25. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

SEC source: 0001209191-20-017554 · doc4.xml · nonDerivative · entry 2

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 948,014

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: The option exercises and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the Reporting Person.

SEC source: 0001209191-20-017554 · doc4.xml · nonDerivative · entry 1

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 946,347

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: The option exercises and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the Reporting Person.

SEC source: 0001209191-20-003280 · doc4.xml · derivative · entry 1

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Class A Common Stock · 150,000 shares

Expires 2027-10-18

F1 · derivative.exercise_date: On January 10, 2020, the Compensation Committee of the Board of Directors of the Issuer determined that certain performance targets had been achieved pertaining to a 150,000 share option granted to the Reporting Person on October 18, 2017. The option vests as to one-thirty-sixth of the shares on January 1, 2020 and each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

SEC source: 0001209191-19-053229 · doc4.xml · derivative · entry 10

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,563

Underlying: Class A Common Stock · 3,037 shares

Expires 2029-05-10

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

F5 · derivative.exercise_date: This option, originally for 145,786 shares, of which 18,223 have been exercised, vested as to one forty-eighth of the shares on May 1, 2019, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

SEC source: 0001209191-19-053229 · doc4.xml · derivative · entry 9

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182,292

Underlying: Class A Common Stock · 5,208 shares

Expires 2028-11-02

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

F4 · derivative.exercise_date: This option, originally for 250,000 shares, of which 67,708 have been exercised, vested as to one forty-eighth of the shares on October 1, 2018, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

SEC source: 0001209191-19-053229 · doc4.xml · derivative · entry 8

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,500

Underlying: Class A Common Stock · 4,167 shares

Expires 2027-10-18

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

F3 · derivative.exercise_date: This option, originally for 150,000 shares, of which 37,500 have been exercised, vested as to one thirty-sixth of the shares on January 1, 2019, and one thirty-sixth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date

SEC source: 0001209191-19-053229 · doc4.xml · derivative · entry 7

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 143,750

Underlying: Class A Common Stock · 6,250 shares

Expires 2027-10-18

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

F2 · derivative.exercise_date: This option, originally for 300,000 shares, of which 156,250 have been exercised, vested as to one forty-eighth of the shares on October 1, 2017, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

SEC source: 0001209191-19-053229 · doc4.xml · derivative · entry 6

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,667

Underlying: Class A Common Stock · 4,167 shares

Expires 2026-11-18

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_date: This option, originally for 200,000 shares, of which 158,333 have been exercised, vested as to one-fourth of the shares on August 1, 2017, and one forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

SEC source: 0001209191-19-053229 · doc4.xml · nonDerivative · entry 5

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 938,014

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.

SEC source: 0001209191-19-053229 · doc4.xml · nonDerivative · entry 4

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 934,977

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.

SEC source: 0001209191-19-053229 · doc4.xml · nonDerivative · entry 3

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 929,769

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.

SEC source: 0001209191-19-053229 · doc4.xml · nonDerivative · entry 2

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 925,602

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.

SEC source: 0001209191-19-053229 · doc4.xml · nonDerivative · entry 1

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 919,352

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.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 18

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 130,600

Underlying: Class A Common Stock · 130,600 shares

Expires 2029-05-10

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F9 · derivative.exercise_date: This option, originally for 145,786 shares, of which 15,186 have been exercised, vested as to one forty-eighth of the shares on May 1, 2019, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 17

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B Common Stock · 130,600 shares

Expires 2029-05-10

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F9 · derivative.exercise_date: This option, originally for 145,786 shares, of which 15,186 have been exercised, vested as to one forty-eighth of the shares on May 1, 2019, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 16

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 187,500

Underlying: Class A Common Stock · 187,500 shares

Expires 2028-11-02

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F8 · derivative.exercise_date: This option, originally for 250,000 shares, of which 62,500 have been exercised, vested as to one forty-eighth of the shares on October 1, 2018, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 15

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B Common Stock · 187,500 shares

Expires 2028-11-02

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F8 · derivative.exercise_date: This option, originally for 250,000 shares, of which 62,500 have been exercised, vested as to one forty-eighth of the shares on October 1, 2018, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 14

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,667

Underlying: Class A Common Stock · 116,667 shares

Expires 2027-10-18

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F7 · derivative.exercise_date: This option, originally for 150,000 shares, of which 33,333 have been exercised, vested as to one thirty-sixth of the shares on January 1, 2019, and one thirty-sixth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 13

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B Common Stock · 116,667 shares

Expires 2027-10-18

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F7 · derivative.exercise_date: This option, originally for 150,000 shares, of which 33,333 have been exercised, vested as to one thirty-sixth of the shares on January 1, 2019, and one thirty-sixth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 12

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Class A Common Stock · 150,000 shares

Expires 2027-10-18

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F6 · derivative.exercise_date: This option, originally for 300,000 shares, of which 150,000 have been exercised, vested as to one forty-eighth of the shares on October 1, 2017, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 11

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B Common Stock · 150,000 shares

Expires 2027-10-18

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F6 · derivative.exercise_date: This option, originally for 300,000 shares, of which 150,000 have been exercised, vested as to one forty-eighth of the shares on October 1, 2017, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 10

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,834

Underlying: Class A Common Stock · 45,834 shares

Expires 2026-11-18

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F5 · derivative.exercise_date: This option, originally for 200,000 shares, of which 154,166 have been exercised, vested as to one-fourth of the shares on August 1, 2017, and one forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 9

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B Common Stock · 45,834 shares

Expires 2026-11-18

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F5 · derivative.exercise_date: This option, originally for 200,000 shares, of which 154,166 have been exercised, vested as to one-fourth of the shares on August 1, 2017, and one forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F1 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 8

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,750,000

Underlying: Class A Common Stock · 1,750,000 shares

Expires not disclosed

F3 · security: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.exercise_price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.exercise_date: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.expiration_date: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F4 · ownership.nature: 250,000 shares are held by each of Polaris 2018 Irrevocable Trust, Antares 2018 Irrevocable Trust, Arcturus 2018 Irrevocable Trust, FLY 2018 Irrevocable Trust, LY 2018 Irrevocable Trust, MS 2018 Irrevocable Trust and NS 2018 Irrevocable Trust, of which the Reporting Person is the sole trustee.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 7

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Class B Common Stock · 1,750,000 shares

Expires not disclosed

F3 · security: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.exercise_price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.exercise_date: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.expiration_date: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F4 · ownership.nature: 250,000 shares are held by each of Polaris 2018 Irrevocable Trust, Antares 2018 Irrevocable Trust, Arcturus 2018 Irrevocable Trust, FLY 2018 Irrevocable Trust, LY 2018 Irrevocable Trust, MS 2018 Irrevocable Trust and NS 2018 Irrevocable Trust, of which the Reporting Person is the sole trustee.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 6

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,250,000

Underlying: Class A Common Stock · 1,250,000 shares

Expires not disclosed

F3 · security: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.exercise_price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.exercise_date: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.expiration_date: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 5

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B Common Stock · 1,250,000 shares

Expires not disclosed

F3 · security: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.exercise_price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.exercise_date: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.expiration_date: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F3 · derivative.underlying: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 4

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,865

Underlying: Class A Common Stock · 31,865 shares

Expires not disclosed

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

F2 · security: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F2 · derivative.exercise_price: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F2 · derivative.exercise_date: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F2 · derivative.expiration_date: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F2 · derivative.underlying: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

SEC source: 0000899243-19-023629 · doc4.xml · derivative · entry 3

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class B Common Stock · 31,865 shares

Expires not disclosed

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

F2 · security: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F2 · derivative.exercise_price: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F2 · derivative.exercise_date: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F2 · derivative.expiration_date: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F2 · derivative.underlying: The Series A-1 Preferred Stock automatically converted into Class B Common Stock, on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering and had no expiration date. Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

SEC source: 0000899243-19-023629 · doc4.xml · nonDerivative · entry 2

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 915,185

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

SEC source: 0000899243-19-023629 · doc4.xml · nonDerivative · entry 1

Saxonov Serge · CIK 0001786720 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering.