Nashat Amir

SEC source: 0001628280-26-042858 · wk-form4_1781295340.xml · derivative · entry 1

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,000

Underlying: Common Stock · 28,000 shares

Expires 2036-06-09

F1 · derivative.exercise_date: The shares underlying the option vest in their entirety on the earlier of the first anniversary of the grant date or the date of the issuer's next annual meeting of stockholders, subject to continued service to the Company through the applicable vesting date.

SEC source: 0001193125-25-201380 · ownership.xml · nonDerivative · entry 2

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 197,661

F1 · kind: On September 11, 2025, each of Polaris Partners VII, L.P. ("PP VII") and Polaris Entrepreneurs' Fund VII, L.P. ("PEF VII") acquired shares in a private placement by the Issuer pursuant to the terms of a Securities Purchase Agreement, dated as of September 9, 2025, by and among the Issuer and the investors party thereto at a purchase price of $1.53 per share.

F4 · ownership.nature: The reported securities are owned directly by PEF VII. PMC VII is the general partner of PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members, including the Reporting Person, or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001193125-25-201380 · ownership.xml · nonDerivative · entry 1

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,825,500

F1 · kind: On September 11, 2025, each of Polaris Partners VII, L.P. ("PP VII") and Polaris Entrepreneurs' Fund VII, L.P. ("PEF VII") acquired shares in a private placement by the Issuer pursuant to the terms of a Securities Purchase Agreement, dated as of September 9, 2025, by and among the Issuer and the investors party thereto at a purchase price of $1.53 per share.

F2 · ownership.nature: The reported securities are owned directly by PP VII. Polaris Management Co. VII, L.L.C. ("PMC VII") is the general partner of PP VII. Each of David Barrett, Brian Chee, the Reporting Person, a member of the Issuer's board of directors, and Bryce Youngren (collectively, the "PMC VII Managing Members") are the managing members of PMC VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PP VII.

F3 · ownership.nature: Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001736730-25-000056 · wk-form4_1751054544.xml · derivative · entry 1

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,000

Underlying: Common Stock · 9,000 shares

Expires 2035-06-24

F1 · derivative.exercise_date: The shares underlying the option vest in their entirety on the earlier of the first anniversary of the grant date or the date of the issuer's next annual meeting of stockholders, subject to continued service to the issuer's board of directors through the applicable vesting date.

SEC source: 0001104659-24-108703 · tm2426125-5_4seq1.xml · derivative · entry 9

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 24,745 shares

Expires not disclosed

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

F4 · derivative.exercise_price: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F4 · price: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F4 · derivative.exercise_date: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F4 · derivative.expiration_date: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F5 · ownership.nature: The reported securities are owned directly by Polaris Entrepreneurs' Fund VII, L.P. ("PEF VII"). PMC VII is the general partner of PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members, including the Reporting Person, or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-24-108703 · tm2426125-5_4seq1.xml · derivative · entry 8

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 353,718 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: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F4 · price: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F4 · derivative.exercise_date: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F4 · derivative.expiration_date: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F2 · ownership.nature: The reported securities are owned directly by Polaris Partners VII, L.P. ("PP VII"). Polaris Management Co. VII, L.L.C. ("PMC VII") is the general partner of PP VII. Each of David Barrett, Brian Chee, the Reporting Person, a member of the Issuer's board of directors, and Bryce Youngren (collectively, the "PMC VII Managing Members") are the managing members of PMC VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PP VII.

F3 · ownership.nature: Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-24-108703 · tm2426125-5_4seq1.xml · derivative · entry 7

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 87,448 shares

Expires not disclosed

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

F1 · derivative.exercise_price: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F1 · price: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F1 · derivative.exercise_date: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F1 · derivative.expiration_date: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F5 · ownership.nature: The reported securities are owned directly by Polaris Entrepreneurs' Fund VII, L.P. ("PEF VII"). PMC VII is the general partner of PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members, including the Reporting Person, or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-24-108703 · tm2426125-5_4seq1.xml · derivative · entry 6

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,250,061 shares

Expires not disclosed

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

F1 · derivative.exercise_price: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F1 · price: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F1 · derivative.exercise_date: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F1 · derivative.expiration_date: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F2 · ownership.nature: The reported securities are owned directly by Polaris Partners VII, L.P. ("PP VII"). Polaris Management Co. VII, L.L.C. ("PMC VII") is the general partner of PP VII. Each of David Barrett, Brian Chee, the Reporting Person, a member of the Issuer's board of directors, and Bryce Youngren (collectively, the "PMC VII Managing Members") are the managing members of PMC VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PP VII.

F3 · ownership.nature: Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-24-108703 · tm2426125-5_4seq1.xml · nonDerivative · entry 5

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 909,090

F6 · ownership.nature: The reported securities are owned directly by Polaris Partners X, L.P. ("PP X"). Polaris Partners GP X, L.L.C. ("PPGP X") is the general partner of PP X. Each of Amy Schulman and Brian Chee are the managing members of PPGP X (the "PPGP X Managing Members"). The Reporting Person, a member of the Issuer's board of directors, is an interest holder of PPGP X. Each of PPGP X, the PPGP X Managing Members and the Reporting Person, in their respective capacities with respect to PPGP X, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PP X.

F7 · ownership.nature: Each of PPGP X, the PPGP X Managing Members and the Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PPGP X Managing Members, the Reporting Person or PPGP X is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-24-108703 · tm2426125-5_4seq1.xml · nonDerivative · entry 4

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 112,193

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 · kind: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F4 · price: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F5 · ownership.nature: The reported securities are owned directly by Polaris Entrepreneurs' Fund VII, L.P. ("PEF VII"). PMC VII is the general partner of PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members, including the Reporting Person, or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-24-108703 · tm2426125-5_4seq1.xml · nonDerivative · entry 3

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,603,779

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 · kind: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F4 · price: On October 15, 2024, the shares of Series B Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F2 · ownership.nature: The reported securities are owned directly by Polaris Partners VII, L.P. ("PP VII"). Polaris Management Co. VII, L.L.C. ("PMC VII") is the general partner of PP VII. Each of David Barrett, Brian Chee, the Reporting Person, a member of the Issuer's board of directors, and Bryce Youngren (collectively, the "PMC VII Managing Members") are the managing members of PMC VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PP VII.

F3 · ownership.nature: Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-24-108703 · tm2426125-5_4seq1.xml · nonDerivative · entry 2

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 87,448

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

F1 · kind: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F1 · price: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F5 · ownership.nature: The reported securities are owned directly by Polaris Entrepreneurs' Fund VII, L.P. ("PEF VII"). PMC VII is the general partner of PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PEF VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members, including the Reporting Person, or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-24-108703 · tm2426125-5_4seq1.xml · nonDerivative · entry 1

Nashat Amir · CIK 0001575843 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,250,061

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 · kind: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F1 · price: On October 15, 2024, the shares of Series A Prime Convertible Preferred Stock automatically converted into shares of Common Stock on a 11.2158-for-one basis without payment of further consideration upon the closing of the Issuer's initial public offering. The shares have no expiration date.

F2 · ownership.nature: The reported securities are owned directly by Polaris Partners VII, L.P. ("PP VII"). Polaris Management Co. VII, L.L.C. ("PMC VII") is the general partner of PP VII. Each of David Barrett, Brian Chee, the Reporting Person, a member of the Issuer's board of directors, and Bryce Youngren (collectively, the "PMC VII Managing Members") are the managing members of PMC VII. Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, in their respective capacities with respect to PMC VII, may be deemed to have shared voting, investment and dispositive power with respect to the securities held by PP VII.

F3 · ownership.nature: Each of PMC VII and the PMC VII Managing Members, including the Reporting Person, disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of the PMC VII Managing Members or PMC VII is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001415889-24-021767 · form4-08202024_110825.xml · derivative · entry 9

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,168 shares

Expires 2034-06-03

F7 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F8 · derivative.exercise_date: The Option will vest in full on the earlier of (a) June 04, 2025 and (b) the next annual meeting of the issuer's stockholders, subject to the reporting person's provision of service to the issuer on the vesting date.

SEC source: 0001415889-24-021767 · form4-08202024_110825.xml · derivative · entry 8

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,535 shares

Expires 2033-05-31

F7 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F6 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

SEC source: 0001415889-24-021767 · form4-08202024_110825.xml · derivative · entry 7

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 17,550 shares

Expires 2032-06-08

F7 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F6 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

SEC source: 0001415889-24-021767 · form4-08202024_110825.xml · derivative · entry 6

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,910 shares

Expires 2031-06-16

F7 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F6 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

SEC source: 0001415889-24-021767 · form4-08202024_110825.xml · derivative · entry 5

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,000 shares

Expires 2030-06-18

F7 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F6 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

SEC source: 0001415889-24-021767 · form4-08202024_110825.xml · derivative · entry 4

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 24,000 shares

Expires 2029-06-26

F7 · price: Pursuant to the Merger Agreement, each Option that was outstanding but not vested as of immediately prior to the Closing (the "Unvested Option") became fully vested and exercisable (the "Vested Option"). Each Vested Option was automatically cancelled and converted into the right to receive an amount in cash without interest, less any applicable tax withholding, equal to the product obtained by multiplying (i) the excess, if any, of the Offer Price over the exercise price per share of Common Stock underlying such Option by (ii) the number of shares of Common Stock underlying such Option. If the exercise price per share of Common Stock of the underlying Option was equal to or greater than the Offer Price, such Option was cancelled without any cash payment or other consideration being made in respect thereof.

F6 · derivative.exercise_date: The Company Stock Option ("Option") is fully vested.

SEC source: 0001415889-24-021767 · form4-08202024_110825.xml · nonDerivative · entry 3

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Polaris Entrepreneurs' Fund VII, L.P.

Disclosed balance after: 0

F1 · price: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2 · price: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

F5 · ownership.nature: The shares are owned directly by PEF VII. PMC VII is the general partner of PEF VII. Each of the Managing Members, in their respective capacities with respect to PMC VII, may be deemed to have shared voting and dispositive power over the shares held by PEF VII. Each of PMC VII and the Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001415889-24-021767 · form4-08202024_110825.xml · nonDerivative · entry 2

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Polaris Partners VII, L.P.

Disclosed balance after: 0

F1 · price: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2 · price: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

F3 · ownership.nature: The shares are owned directly by PP VII. Polaris Management Co. VII, L.L.C. ("PMC VII") is the general partner of PP VII. The Reporting Person, a member of the Issuer's Board of Directors, is a member of PMC VII. Each of the Reporting Person, David Barrett ("Barrett"), Brian Chee ("Chee"), and Bryce Youngren ("Youngren" and, together with the Reporting Person, Barrett, and Chee, the "Managing Members") are the managing members of PMC VII.

F4 · ownership.nature: Each of the Managing Members, in their respective capacities with respect to PMC VII, may be deemed to have shared voting and dispositive power over the shares held by PP VII. Each of PMC VII and the Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001415889-24-021767 · form4-08202024_110825.xml · nonDerivative · entry 1

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · price: On July 7, 2024, Morphic Holding, Inc., a Delaware corporation (the "Issuer" or the "Company"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Eli Lilly and Company, an Indiana corporation (the "Parent"), and Rainier Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of the Parent ("Merger Sub"). Pursuant to the Merger Agreement, the Merger Sub merged with and into the Company (the "Merger") with the Company surviving the Merger as a wholly owned subsidiary of the Parent.

F2 · price: (Continued from Footnote 1) Upon the closing (the "Closing") of the Merger on August 16, 2024, each share of the Company's Common Stock, par value $0.0001 per share ("Common Stock"), was either (x) purchased by Purchaser for $57.00 per share (the "Offer Price"), without interest, less any applicable tax withholding or (y) automatically converted into the right to receive the Offer Price in cash without interest, less any applicable tax withholding.

SEC source: 0001415889-24-015668 · form4-06052024_110638.xml · derivative · entry 1

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,168

Underlying: Common Stock · 23,168 shares

Expires 2034-06-03

F1 · derivative.exercise_date: The option will vest in full on the earlier of (a) June 04, 2025 and (b) the next annual meeting of the issuer's stockholders, subject to the reporting person's provision of service to the issuer on the vesting date.

SEC source: 0000950170-24-058674 · ownership.xml · nonDerivative · entry 9

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,639

F7 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVM VI.

SEC source: 0000950170-24-058674 · ownership.xml · nonDerivative · entry 8

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F6 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by PVM VI to its members.

F5 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person and a member of the Issuer's Board of Directors, may be deemed to have shared voting, investment and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaim beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-24-058674 · ownership.xml · nonDerivative · entry 7

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 276

F12 · kind: Represents a change in the form of ownership of PVM VI by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVPFF VI.

F5 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person and a member of the Issuer's Board of Directors, may be deemed to have shared voting, investment and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaim beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-24-058674 · ownership.xml · nonDerivative · entry 6

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,469

F10 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVPFF VI.

F11 · ownership.nature: The reportable securities are owned by North Star Profit Sharing Trust for the benefit of the Reporting Person.

SEC source: 0000950170-24-058674 · ownership.xml · nonDerivative · entry 5

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 96,474

F8 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by Polaris Venture Partners Founders' Fund VI, L.P. ("PVPFF VI") to its partners.

F9 · ownership.nature: The reportable securities are owned directly by PVPFF VI. PVM VI is the general partner of PVPFF VI. PVM VI may be deemed to have sole voting, investment and dispositive power with respect to the shares held by PVPFF VI and each of the Reporting Person and the other Managing Members may be deemed to have shared voting, investment and dispositive power with respect to the shares held by PVPFF VI. Each of the Reporting Person, PVM VI and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person, PVM VI or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-24-058674 · ownership.xml · nonDerivative · entry 4

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,602

F7 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVM VI.

SEC source: 0000950170-24-058674 · ownership.xml · nonDerivative · entry 3

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F6 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by PVM VI to its members.

F5 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person and a member of the Issuer's Board of Directors, may be deemed to have shared voting, investment and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaim beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-24-058674 · ownership.xml · nonDerivative · entry 2

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 98,257

F4 · kind: Represents a change in the form of ownership of PVM VI by virtue of the receipt of shares in the in-kind distribution of common stock of the Issuer for no consideration by PVP VI.

F5 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person and a member of the Issuer's Board of Directors, may be deemed to have shared voting, investment and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaim beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-24-058674 · ownership.xml · nonDerivative · entry 1

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,650,953

F1 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by Polaris Venture Partners VI, L.P. ("PVP VI") to its partners.

F2 · ownership.nature: The reportable securities are owned directly by PVP VI. Polaris Venture Management Co. VI, L.L.C. ("PVM VI") is the general partner of PVP VI and PVM VI is managed by its managing members, one of whom is the Reporting Person and a member of the Issuer's Board of Directors (collectively, the "Managing Members"). PVM VI may be deemed to have sole voting, investment and dispositive power with respect to the shares held by PVP VI and each of the Reporting Person and the other Managing Members may be deemed to have shared voting, investment and dispositive power with respect to the shares held by PVP VI. Each of the Reporting Person, PVM VI and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person, PVM VI or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose,

F3 · ownership.nature: (Continued from footnote 2) except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-073873 · ownership.xml · nonDerivative · entry 1

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,506

F1 · ownership.direct: Reflects the bona fide gift of common stock to a charitable donor-advised fund.

SEC source: 0000950170-23-070770 · ownership.xml · nonDerivative · entry 9

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,839

F6 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVM VI.

SEC source: 0000950170-23-070770 · ownership.xml · nonDerivative · entry 8

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by PVM VI to its members.

F4 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person who is a member of the Issuer's Board of Directors, may be deemed to have sole voting and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-070770 · ownership.xml · nonDerivative · entry 7

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 548

F11 · kind: Represents a change in the form of ownership of PVM VI by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVPFF VI.

F4 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person who is a member of the Issuer's Board of Directors, may be deemed to have sole voting and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-070770 · ownership.xml · nonDerivative · entry 6

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 1,147

F9 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVPFF VI.

F10 · ownership.nature: The reportable securities are owned by North Star Profit Sharing Trust for the benefit of the Reporting Person.

SEC source: 0000950170-23-070770 · ownership.xml · nonDerivative · entry 5

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 124,080

F7 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by Polaris Venture Partners Founders' Fund VI, L.P. ("PVPFF VI") to its partners.

F8 · ownership.nature: The reportable securities are owned directly by PVPFF VI. PVM VI is the general partner of PVPFF VI. PVM VI may be deemed to have sole voting and dispositive power with respect to the shares held by PVPFF VI and each of the Reporting Person and the other Managing Members may be deemed to have shared voting and dispositive power with respect to the shares held by PVPFF VI. Each of the Reporting Person, PVM VI and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person, PVM VI or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-070770 · ownership.xml · nonDerivative · entry 4

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,766

F6 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVM VI.

SEC source: 0000950170-23-070770 · ownership.xml · nonDerivative · entry 3

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by PVM VI to its members.

F4 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person who is a member of the Issuer's Board of Directors, may be deemed to have sole voting and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-070770 · ownership.xml · nonDerivative · entry 2

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 196,520

F3 · kind: Represents a change in the form of ownership of PVM VI by virtue of the receipt of shares in the in-kind distribution of common stock of the Issuer for no consideration by PVP VI.

F4 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person who is a member of the Issuer's Board of Directors, may be deemed to have sole voting and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-070770 · ownership.xml · nonDerivative · entry 1

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,123,347

F1 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by Polaris Venture Partners VI, L.P. ("PVP VI") to its partners.

F2 · ownership.nature: The reportable securities are owned directly by PVP VI. Polaris Venture Management Co. VI, L.L.C. ("PVM VI") is the general partner of PVP VI and PVM VI is managed by its managing members, one of whom is the Reporting Person and a member of the Issuer's Board of Directors (collectively, the "Managing Members"). PVM VI may be deemed to have sole voting and dispositive power with respect to the shares held by PVP VI and each of the Reporting Person and the other Managing Members may be deemed to have shared voting and dispositive power with respect to the shares held by PVP VI. Each of the Reporting Person, PVM VI and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person, PVM VI or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-065889 · ownership.xml · nonDerivative · entry 9

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,574

F6 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVM VI.

SEC source: 0000950170-23-065889 · ownership.xml · nonDerivative · entry 8

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by PVM VI to its members.

F4 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person who is a member of the Issuer's Board of Directors, may be deemed to have sole voting and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-065889 · ownership.xml · nonDerivative · entry 7

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 276

F11 · kind: Represents a change in the form of ownership of PVM VI by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVPFF VI.

F4 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person who is a member of the Issuer's Board of Directors, may be deemed to have sole voting and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-065889 · ownership.xml · nonDerivative · entry 6

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 504

F9 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVPFF VI.

F10 · ownership.nature: The reportable securities are owned by North Star Profit Sharing Trust for the benefit of the Reporting Person.

SEC source: 0000950170-23-065889 · ownership.xml · nonDerivative · entry 5

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 179,291

F7 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by Polaris Venture Partners Founders' Fund VI, L.P. ("PVPFF VI") to its partners.

F8 · ownership.nature: The reportable securities are owned directly by PVPFF VI. PVM VI is the general partner of PVPFF VI. PVM VI may be deemed to have sole voting and dispositive power with respect to the shares held by PVPFF VI and each of the Reporting Person and the other Managing Members may be deemed to have shared voting and dispositive power with respect to the shares held by PVPFF VI. Each of the Reporting Person, PVM VI and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person, PVM VI or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-065889 · ownership.xml · nonDerivative · entry 4

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,537

F6 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the in-kind distribution of common stock of the Issuer for no consideration by PVM VI.

SEC source: 0000950170-23-065889 · ownership.xml · nonDerivative · entry 3

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · kind: Represents a distribution, and not a purchase or sale, without additional consideration by PVM VI to its members.

F4 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person who is a member of the Issuer's Board of Directors, may be deemed to have sole voting and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000950170-23-065889 · ownership.xml · nonDerivative · entry 2

Nashat Amir · CIK 0001575843 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 98,261

F3 · kind: Represents a change in the form of ownership of PVM VI by virtue of the receipt of shares in the in-kind distribution of common stock of the Issuer for no consideration by PVP VI.

F4 · ownership.nature: The reportable securities are owned directly by PVM VI. PVM VI is the general partner of PVP VI and PVM VI is managed by the Managing Members. The Managing Members, one of whom is the Reporting Person who is a member of the Issuer's Board of Directors, may be deemed to have sole voting and dispositive power with respect to the shares held by PVM VI. Each of the Reporting Person and the other Managing Members disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the Reporting Person or any of the other Managing Members is a beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.