CSTL

SEC source: 0001104659-20-010543 · tm206618d1_4.xml · nonDerivative · entry 1

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,783,577

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Sofinnova Healthquest Partners, L.P. on December 17, 2019.

F2 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001447362-20-000006 · wf-form4_158042927390856.xml · nonDerivative · entry 1

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 1,808,577

F1 · kind: The transaction on this Form 4 was made pursuant to a Rule 10b5-1 plan adopted by Sofinnova HealthQuest Partners, L.P. on December 17, 2019.

F2 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the general partner of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001104659-20-008862 · tv537385_4.xml · nonDerivative · entry 1

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,808,577

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Sofinnova Healthquest Partners, L.P. on December 17, 2019.

F2 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001447362-19-000025 · wf-form4_157661717841630.xml · derivative · entry 1

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 170,000

Underlying: Common Stock · 170,000 shares

Expires 2029-12-12

F1 · derivative.exercise_date: 25% of the shares shall vest on December 13, 2020, and the remaining shares shall vest in 36 equal monthly installments thereafter.

SEC source: 0001447362-19-000026 · wf-form4_157661719990981.xml · derivative · entry 1

Stokes Frank · CIK 0001782815 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,000

Underlying: Common Stock · 55,000 shares

Expires 2020-12-12

F1 · derivative.exercise_date: 25% of the shares shall vest on December 13, 2020, and the remaining shares shall vest in 36 equal monthly installments thereafter.

SEC source: 0001447362-19-000024 · wf-form4_157661715881831.xml · derivative · entry 1

Spiess Bernhard E. · CIK 0001782994 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 35,000 shares

Expires 2029-12-12

F1 · derivative.exercise_date: 25% of the shares shall vest on December 13, 2020, and the remaining shares shall vest in 36 equal monthly installments thereafter.

SEC source: 0001447362-19-000023 · wf-form4_157661713679209.xml · derivative · entry 1

Monzon Federico A. · CIK 0001783133 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 35,000 shares

Expires 2029-12-12

F1 · derivative.exercise_date: 25% of the shares shall vest on December 13, 2020, and the remaining shares shall vest in 36 equal monthly installments thereafter.

SEC source: 0001140361-19-013900 · form4.xml · derivative · entry 12

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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 · 97,428 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.

F6 · derivative.exercise_price: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F6 · shares: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F6 · price: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F6 · derivative.exercise_date: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F6 · derivative.expiration_date: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001140361-19-013900 · form4.xml · derivative · entry 11

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: CommonStock · 416,537 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001140361-19-013900 · form4.xml · derivative · entry 10

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: CommonStock · 117,180 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001140361-19-013900 · form4.xml · derivative · entry 9

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: CommonStock · 129,925 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001140361-19-013900 · form4.xml · derivative · entry 8

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: CommonStock · 380,190 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001140361-19-013900 · form4.xml · derivative · entry 7

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: CommonStock · 277,074 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001140361-19-013900 · form4.xml · derivative · entry 6

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: CommonStock · 16,015 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001140361-19-013900 · form4.xml · nonDerivative · entry 5

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: 134,700

F7 · shares: Represents a purchase from the underwriters in the Issuer's IPO.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F9 · ownership.nature: Held directly by MGC QP 2018 LP.

SEC source: 0001140361-19-013900 · form4.xml · nonDerivative · entry 4

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: 115,300

F7 · shares: Represents a purchase from the underwriters in the Issuer's IPO.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

F8 · ownership.nature: Held directly by MGC 2018 LP.

SEC source: 0001140361-19-013900 · form4.xml · nonDerivative · entry 3

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: 1,496,855

F7 · shares: Represents a purchase from the underwriters in the Issuer's IPO.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001140361-19-013900 · form4.xml · nonDerivative · entry 2

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: 1,434,355

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.

F6 · price: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001140361-19-013900 · form4.xml · nonDerivative · entry 1

MGC Venture Partners 2013 GP, LLC · CIK 0001783292 · 10% owner

MGC Venture Partners 2013, L.P. · CIK 0001572764 · 10% owner

MGC Venture Partners 2018 GP, LLC · CIK 0001783291 · 10% owner

MGC VENTURE PARTNERS 2018, L.P. · CIK 0001745133 · 10% owner

MGC VENTURE PARTNERS QP 2018, L.P. · CIK 0001749814 · 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: 1,336,927

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 · shares: The shares of Common Stock issued upon conversion of the Preferred Stock were calculated by first aggregating all series of Preferred Stock held by MGC Venture Partners 2013, L.P. ("MGC 2013 LP"), in accordance with the terms of the then-effective Certificate of Incorporation of Castle Biosciences, Inc. (the "Issuer").

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held directly by MGC 2013 LP.

F4 · ownership.nature: MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP. MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP") is the general partner of MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). Each of MGC 2013 LP, MGC 2013 GP, MGC 2018 LP, MGC QP 2018 LP and MGC 2018 GP directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of some or all of the shares owned by MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP and, therefore, a "ten percent holder" hereunder.

F5 · ownership.nature: Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton and Byron W. Smith are managing directors of MGC 2013 GP and share voting and investment power over the shares held by MGC 2013 LP. Each of Joseph C. Cook, Jr., Joseph C. Cook III, Steven D. Singleton, Byron W. Smith, Jay Ferguson and Rob Readnour are managing partners of MGC 2018 GP and share voting and investment power over the shares held by MGC 2018 LP and MGC QP 2018 LP. Each of the Reporting Persons disclaims beneficial ownership of the shares held by any other Reporting Persons reported herein, except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Persons are the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001209191-19-043912 · doc4.xml · derivative · entry 11

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 0

Underlying: Common Stock · 11,572 shares

Expires 2019-07-29

F7 · shares: Immediately prior to the closing of the IPO, the warrant became exercisable for 11,572 shares of Common Stock.

F8 · derivative.exercise_date: Immediately exercisable.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · derivative · entry 10

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 0

Underlying: Common Stock · 83,453 shares

Expires not disclosed

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

F4 · derivative.exercise_price: The principal amount of the Convertible Promissory Note held by HealthQuest Partners was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F4 · reported_value: The principal amount of the Convertible Promissory Note held by HealthQuest Partners was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F4 · price: The principal amount of the Convertible Promissory Note held by HealthQuest Partners was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F4 · derivative.exercise_date: The principal amount of the Convertible Promissory Note held by HealthQuest Partners was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F4 · derivative.expiration_date: The principal amount of the Convertible Promissory Note held by HealthQuest Partners was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · derivative · entry 9

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 0

Underlying: Common Stock · 982,785 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · derivative · entry 8

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 0

Underlying: Common Stock · 318,842 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.

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · derivative · entry 7

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 0

Underlying: Common Stock · 358,416 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · derivative · entry 6

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 0

Underlying: Common Stock · 16,015 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · nonDerivative · entry 5

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 1,833,577

F6 · shares: Represents a purchase from the underwriters in the Issuer's IPO.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · nonDerivative · entry 4

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 1,771,077

F5 · kind: On July 29, 2019, the reporting person exercised a warrant to purchase 11,572 shares of the Issuer's common stock for approximately $0.02 per share. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 9 of the warrant shares to pay the exercise price and issuing to the reporting person the remaining 11,563 shares.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · nonDerivative · entry 3

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 1,771,086

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · nonDerivative · entry 2

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 1,759,514

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 · price: The principal amount of the Convertible Promissory Note held by HealthQuest Partners was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043912 · doc4.xml · nonDerivative · entry 1

KABAKOFF DAVID S · CIK 0001024008 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By L.P.

Disclosed balance after: 1,676,061

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 · shares: The shares of Common Stock issued upon conversion of the Preferred Stock were calculated by first aggregating all series of Preferred Stock held by the Reporting Person, in accordance with the terms of the Company's then-effective Certificate of Incorporation.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held by Sofinnova HealthQuest Partners, L.P., or HealthQuest Partners. HealthQuest Venture Management, L.L.C., or HealthQuest Management, is the managing member of HealthQuest Partners. David Kabakoff, Ph.D., the Reporting Person, is a partner of HealthQuest Management. Garheng Kong is the managing member of HealthQuest Management and has sole voting and investment power over the shares held by HealthQuest Partners. Each of HealthQuest Management, Mr. Kong and Dr. Kabakoff disclaims beneficial ownership over all shares held by HealthQuest Partners except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · derivative · entry 11

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 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 · 11,572 shares

Expires 2019-07-29

F7 · shares: Immediately prior to the closing of the IPO, the warrant became exercisable for 11,572 shares of common stock.

F8 · derivative.exercise_date: Immediately exercisable.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · derivative · entry 10

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 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 · 83,453 shares

Expires not disclosed

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

F4 · derivative.exercise_price: The principal amount of the Convertible Promissory Note held by HealthQuest was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock that is equal to the Conversion Amount as of the closing date divided by 80% of the IPO price per share of $16.00 per share.

F4 · reported_value: The principal amount of the Convertible Promissory Note held by HealthQuest was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock that is equal to the Conversion Amount as of the closing date divided by 80% of the IPO price per share of $16.00 per share.

F4 · price: The principal amount of the Convertible Promissory Note held by HealthQuest was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock that is equal to the Conversion Amount as of the closing date divided by 80% of the IPO price per share of $16.00 per share.

F4 · derivative.exercise_date: The principal amount of the Convertible Promissory Note held by HealthQuest was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock that is equal to the Conversion Amount as of the closing date divided by 80% of the IPO price per share of $16.00 per share.

F4 · derivative.expiration_date: The principal amount of the Convertible Promissory Note held by HealthQuest was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock that is equal to the Conversion Amount as of the closing date divided by 80% of the IPO price per share of $16.00 per share.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · derivative · entry 9

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 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 · 982,785 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · derivative · entry 8

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 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 · 318,842 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.

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · derivative · entry 7

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 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 · 358,416 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · derivative · entry 6

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 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 · 16,015 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · nonDerivative · entry 5

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,833,577

F6 · shares: Represents a purchase from the underwriters in the Issuer's IPO.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · nonDerivative · entry 4

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,771,077

F5 · kind: On July 29, 2019, HealthQuest exercised a warrant to purchase 11,572 shares of the Issuer's common stock for approximately $0.02 per share. HealthQuest paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 9 of the warrant shares to pay the exercise price and issuing to HealthQuest the remaining 11,563 shares.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · nonDerivative · entry 3

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,771,086

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · nonDerivative · entry 2

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,759,514

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 · price: The principal amount of the Convertible Promissory Note held by HealthQuest was $1,027,882. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock that is equal to the Conversion Amount as of the closing date divided by 80% of the IPO price per share of $16.00 per share.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001144204-19-037023 · tv526440_4.xml · nonDerivative · entry 1

Sofinnova HealthQuest Partners, L.P. · CIK 0001579382 · 10% owner

HealthQuest Venture Management, L.L.C. · CIK 0001783696 · 10% owner

Kong Garheng · CIK 0001435183 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,676,061

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 · shares: The shares of Common Stock issued upon conversion of the Preferred Stock were calculated by first aggregating all series of Preferred Stock held by HealthQuest, in accordance with the terms of the Company's then-effective Certificate of Incorporation.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.direct: The shares are directly held by Sofinnova HealthQuest Partners, L.P. ("HealthQuest"). HealthQuest Venture Management, L.L.C. ("HQVM"), the general partner of HealthQuest, and Garheng Kong, the managing member of HQVM, may be deemed to have sole voting and dispositive power with respect to the shares held of record by HealthQuest. Mr. Kong and HQVM disclaim beneficial ownership over all shares owned by HealthQuest except to the extent of any pecuniary interest therein.

SEC source: 0001209191-19-043886 · doc4.xml · derivative · entry 19

Cook Joseph C. III · CIK 0001783205 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 97,428 shares

Expires not disclosed

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

F5 · derivative.exercise_price: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F5 · reported_value: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F5 · price: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F5 · derivative.exercise_date: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F5 · derivative.expiration_date: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $1,200,000.00. Upon closing of the IPO, all unpaid principal and accrued interest outstanding on the Convertible Promissory Note (the "Conversion Amount") automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F3 · ownership.nature: Held by MGC Venture Partners 2013, L.P. ("MGC 2013 LP"). MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP.

F4 · ownership.nature: The Reporting Person is a managing director of MGC 2013 GP and a managing partner of MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP"), and shares voting and investment power over the shares held by MGC 2013 LP, MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). The Reporting Person disclaims beneficial ownership of the shares held by MGC 2013 GP, MGC 2018 GP, MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP as reported herein, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001209191-19-043886 · doc4.xml · derivative · entry 18

Cook Joseph C. III · CIK 0001783205 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,722 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.

F8 · derivative.exercise_price: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $205,970.51. Upon closing of the IPO, the Conversion Amount automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F8 · reported_value: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $205,970.51. Upon closing of the IPO, the Conversion Amount automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F8 · price: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $205,970.51. Upon closing of the IPO, the Conversion Amount automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F8 · derivative.exercise_date: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $205,970.51. Upon closing of the IPO, the Conversion Amount automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

F8 · derivative.expiration_date: The principal amount of the Convertible Promissory Note held by the designated Reporting Person was $205,970.51. Upon closing of the IPO, the Conversion Amount automatically converted into the number of shares of Common Stock equal to the Conversion Amount as of the date immediately prior to the closing date divided by 80% of the IPO price per share of $16.00 per share.

SEC source: 0001209191-19-043886 · doc4.xml · derivative · entry 17

Cook Joseph C. III · CIK 0001783205 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 416,537 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held by MGC Venture Partners 2013, L.P. ("MGC 2013 LP"). MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP.

F4 · ownership.nature: The Reporting Person is a managing director of MGC 2013 GP and a managing partner of MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP"), and shares voting and investment power over the shares held by MGC 2013 LP, MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). The Reporting Person disclaims beneficial ownership of the shares held by MGC 2013 GP, MGC 2018 GP, MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP as reported herein, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001209191-19-043886 · doc4.xml · derivative · entry 16

Cook Joseph C. III · CIK 0001783205 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 47,495 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

SEC source: 0001209191-19-043886 · doc4.xml · derivative · entry 15

Cook Joseph C. III · CIK 0001783205 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes.

Disclosed balance after: 0

Underlying: Common Stock · 117,180 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held by MGC Venture Partners 2013, L.P. ("MGC 2013 LP"). MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP.

F4 · ownership.nature: The Reporting Person is a managing director of MGC 2013 GP and a managing partner of MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP"), and shares voting and investment power over the shares held by MGC 2013 LP, MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). The Reporting Person disclaims beneficial ownership of the shares held by MGC 2013 GP, MGC 2018 GP, MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP as reported herein, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001209191-19-043886 · doc4.xml · derivative · entry 14

Cook Joseph C. III · CIK 0001783205 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,840 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

SEC source: 0001209191-19-043886 · doc4.xml · derivative · entry 13

Cook Joseph C. III · CIK 0001783205 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 129,925 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held by MGC Venture Partners 2013, L.P. ("MGC 2013 LP"). MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP.

F4 · ownership.nature: The Reporting Person is a managing director of MGC 2013 GP and a managing partner of MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP"), and shares voting and investment power over the shares held by MGC 2013 LP, MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). The Reporting Person disclaims beneficial ownership of the shares held by MGC 2013 GP, MGC 2018 GP, MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP as reported herein, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owners of such securities for purposes of Section 16 or for any other purposes.

SEC source: 0001209191-19-043886 · doc4.xml · derivative · entry 12

Cook Joseph C. III · CIK 0001783205 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,479 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

SEC source: 0001209191-19-043886 · doc4.xml · derivative · entry 11

Cook Joseph C. III · CIK 0001783205 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 380,190 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · price: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.exercise_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F2 · derivative.expiration_date: Every 1.219 outstanding shares of Preferred Stock automatically converted into 1 share of Common Stock immediately prior to the closing of the Issuer's initial public offering (the "IPO"), for no additional consideration, with cash paid for any fractional shares. The Preferred Stock had no expiration date.

F3 · ownership.nature: Held by MGC Venture Partners 2013, L.P. ("MGC 2013 LP"). MGC Venture Partners 2013 GP, LLC ("MGC 2013 GP") is the general partner of MGC 2013 LP.

F4 · ownership.nature: The Reporting Person is a managing director of MGC 2013 GP and a managing partner of MGC Venture Partners 2018 GP, LLC ("MGC 2018 GP"), and shares voting and investment power over the shares held by MGC 2013 LP, MGC Venture Partners 2018, L.P. ("MGC 2018 LP") and MGC Venture Partners QP 2018, L.P. ("MGC QP 2018 LP"). The Reporting Person disclaims beneficial ownership of the shares held by MGC 2013 GP, MGC 2018 GP, MGC 2013 LP, MGC 2018 LP and MGC QP 2018 LP as reported herein, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owners of such securities for purposes of Section 16 or for any other purposes.