LYEL

SEC source: 0001209191-21-042801 · doc4.xml · nonDerivative · entry 1

NELSEN ROBERT · CIK 0001219042 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · ARCH Venture Fund IX, L.P.

Disclosed balance after: 18,206,358

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

F1 · price: The Issuer's Series A Convertible Preferred Stock and Series C Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F2 · ownership.nature: These shares are directly held by ARCH Venture Fund IX, L.P. (ARCH IX). ARCH Venture Partners IX, L.P. (AVP IX LP) is the sole general partner of ARCH IX.

F3 · ownership.nature: ARCH Venture Partners IX, LLC (AVP IX LLC) is the sole general partner of each of AVP IX LP and AVP IX Overage LP. The Reporting Person is a managing director of AVP IX LLC ("AVP IX MD"). AVP IX LP and AVP IX Overage LP may be deemed to beneficially own the shares held by ARCH IX and ARCH IX Overage, respectively, AVP IX LLC may be deemed to beneficially own the shares held by ARCH IX and ARCH IX Overage, and the AVP IX MD may be deemed to share the power to direct the disposition and vote of the shares held by ARCH IX and ARCH IX Overage. AVP IX LP, AVP IX Overage LP and AVP IX LLC each disclaim beneficial ownership except to the extent of any pecuniary interest therein.

F4 · ownership.nature: The Reporting Person is an AVP IX MD and may be deemed to beneficially own the shares held by ARCH IX and ARCH IX Overage. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein, if any.

SEC source: 0001209191-21-042798 · doc4.xml · derivative · entry 3

Klausner Richard · CIK 0001591178 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Indirect · Lyell Investors, LLC

Disclosed balance after: 0

Underlying: Common Stock · 3,765,842 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F1 · derivative.exercise_date: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F1 · derivative.expiration_date: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a manager of Lyell Investors, LLC (Lyell Investors) and may be deemed to share the power to direct the disposition and vote of the shares held by Lyell Investors. The Reporting Person disclaims beneficial ownership of all shares held by Lyell Investors except to any pecuniary interest therein

SEC source: 0001209191-21-042798 · doc4.xml · nonDerivative · entry 1

Klausner Richard · CIK 0001591178 · Director · Executive Chairman

10b5-1 filing: Not disclosed

Ownership: Indirect · Lyell Investors, LLC

Disclosed balance after: 3,765,842

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

F1 · price: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a manager of Lyell Investors, LLC (Lyell Investors) and may be deemed to share the power to direct the disposition and vote of the shares held by Lyell Investors. The Reporting Person disclaims beneficial ownership of all shares held by Lyell Investors except to any pecuniary interest therein

SEC source: 0001209191-21-042796 · doc4.xml · derivative · entry 2

Bishop Hans Edgar · CIK 0001480212 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 546,806 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F1 · derivative.exercise_date: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F1 · derivative.expiration_date: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

SEC source: 0001209191-21-042796 · doc4.xml · nonDerivative · entry 1

Bishop Hans Edgar · CIK 0001480212 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,546,806

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

F1 · price: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

SEC source: 0001209191-21-042795 · doc4.xml · derivative · entry 4

FRIEDMAN CATHY · CIK 0001411874 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lyell Investors, LLC

Disclosed balance after: 0

Underlying: Common Stock · 3,765,842 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F1 · price: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F1 · derivative.exercise_date: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F1 · derivative.expiration_date: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a member of Lyell Investors, LLC and therefore may be deemed to share the power to direct the disposition and vote of the shares held by Lyell Investors, LLC. The Reporting Person disclaims beneficial ownership of all shares held by Lyell Investors, LLC except to any pecuniary interest therein.

SEC source: 0001209191-21-042795 · doc4.xml · nonDerivative · entry 2

FRIEDMAN CATHY · CIK 0001411874 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · MSL FBO J DUANE & C FRIEDMAN TTEE DUANE FAMILY TRUST

Disclosed balance after: 17,648

F3 · ownership.nature: The Reporting Person is a trustee of MSL FBO J DUANE & C FRIEDMAN TTEE DUANE FAMILY TRUST ("Duane Family Trust") and therefore may be deemed to share the power to direct the disposition and vote of the shares held by the Duane Family Trust. The Reporting Person disclaims beneficial ownership of all shares held by Duane Family Trust except to any pecuniary interest therein.

SEC source: 0001209191-21-042795 · doc4.xml · nonDerivative · entry 1

FRIEDMAN CATHY · CIK 0001411874 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Lyell Investors, LLC

Disclosed balance after: 3,765,842

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

F1 · price: The Issuer's Series A Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date.

F2 · ownership.nature: The Reporting Person is a member of Lyell Investors, LLC and therefore may be deemed to share the power to direct the disposition and vote of the shares held by Lyell Investors, LLC. The Reporting Person disclaims beneficial ownership of all shares held by Lyell Investors, LLC except to any pecuniary interest therein.