OrbiMed Israel GP II, L.P.

SEC source: 0000899243-20-030414 · doc4.xml · derivative · entry 8

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

OrbiMed Capital GP VII LLC · CIK 0001760648 · Director · 10% owner

OrbiMed Genesis GP LLC · CIK 0001808744 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 73,773

Underlying: Common Shares · 191,787 shares

Expires not disclosed

F1 · derivative.exercise_price: The Series C-2 Preferred Stock, Series C-4 Preferred Stock, Series C-5 Preferred Stock, and Series D Preferred Stock (collectively, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock at a ratio of 2.59970:1 upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Stock had no expiration date.

F6 · kind: This transaction occurred prior to the Issuer's initial public offering and is being reported on Form 4 solely for purposes of compliance with Rule 16a-2(a) under the Securities Exchange Act of 1934, as amended. The securities covered by such transaction were previously included on the Reporting Persons' Form 3.

F1 · derivative.exercise_date: The Series C-2 Preferred Stock, Series C-4 Preferred Stock, Series C-5 Preferred Stock, and Series D Preferred Stock (collectively, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock at a ratio of 2.59970:1 upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series C-2 Preferred Stock, Series C-4 Preferred Stock, Series C-5 Preferred Stock, and Series D Preferred Stock (collectively, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock at a ratio of 2.59970:1 upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Stock had no expiration date.

F3 · ownership.nature: This report on Form 4 is jointly filed by OrbiMed Advisors, GP VII, OrbiMed Advisors Israel II Limited ("OrbiMed Limited"), OrbiMed Israel GP II, L.P. ("OrbiMed Israel"), and OrbiMed Genesis GP LLC ("Genesis GP"). Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. The Reporting Persons have designated a representative, Chau Khuong, an employee of OrbiMed Advisors, to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the reporting persons is a beneficial owner of such securities for the purposes of Section 16 of the Exchange Act, or for any other purposes.

F5 · ownership.nature: These securities are held of record by OrbiMed Genesis Master Fund, L.P. ("Genesis Master Fund"). Genesis GP is the general partner of Genesis Master Fund and OrbiMed Advisors is the managing member of Genesis GP. By virtue of such relationships, Genesis GP and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by Genesis Master Fund and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises its investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the securities held by Genesis Master Fund.

SEC source: 0000899243-20-030414 · doc4.xml · derivative · entry 7

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

OrbiMed Capital GP VII LLC · CIK 0001760648 · Director · 10% owner

OrbiMed Genesis GP LLC · CIK 0001808744 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 59,350

Underlying: Common Shares · 154,292 shares

Expires not disclosed

F1 · derivative.exercise_price: The Series C-2 Preferred Stock, Series C-4 Preferred Stock, Series C-5 Preferred Stock, and Series D Preferred Stock (collectively, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock at a ratio of 2.59970:1 upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Stock had no expiration date.

F6 · kind: This transaction occurred prior to the Issuer's initial public offering and is being reported on Form 4 solely for purposes of compliance with Rule 16a-2(a) under the Securities Exchange Act of 1934, as amended. The securities covered by such transaction were previously included on the Reporting Persons' Form 3.

F1 · derivative.exercise_date: The Series C-2 Preferred Stock, Series C-4 Preferred Stock, Series C-5 Preferred Stock, and Series D Preferred Stock (collectively, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock at a ratio of 2.59970:1 upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series C-2 Preferred Stock, Series C-4 Preferred Stock, Series C-5 Preferred Stock, and Series D Preferred Stock (collectively, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock at a ratio of 2.59970:1 upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Stock had no expiration date.

F3 · ownership.nature: This report on Form 4 is jointly filed by OrbiMed Advisors, GP VII, OrbiMed Advisors Israel II Limited ("OrbiMed Limited"), OrbiMed Israel GP II, L.P. ("OrbiMed Israel"), and OrbiMed Genesis GP LLC ("Genesis GP"). Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. The Reporting Persons have designated a representative, Chau Khuong, an employee of OrbiMed Advisors, to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the reporting persons is a beneficial owner of such securities for the purposes of Section 16 of the Exchange Act, or for any other purposes.

F4 · ownership.nature: These securities are held of record by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel is the general partner of OIP II, and OrbiMed Limited is the managing member of OrbiMed Israel. By virtue of such relationships, OrbiMed Israel and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Limited exercises its investment and voting power through a management committee comprised of Carl L. Gordon, Jonathan Silverstein, Nissim Darvish, Anat Naschitz, and Erez Chimovits, each of whom disclaims beneficial ownership of the securities held by OIP II.

SEC source: 0000899243-20-030414 · doc4.xml · derivative · entry 6

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

OrbiMed Capital GP VII LLC · CIK 0001760648 · Director · 10% owner

OrbiMed Genesis GP LLC · CIK 0001808744 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 148,395

Underlying: Common Shares · 385,782 shares

Expires not disclosed

F1 · derivative.exercise_price: The Series C-2 Preferred Stock, Series C-4 Preferred Stock, Series C-5 Preferred Stock, and Series D Preferred Stock (collectively, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock at a ratio of 2.59970:1 upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Stock had no expiration date.

F6 · kind: This transaction occurred prior to the Issuer's initial public offering and is being reported on Form 4 solely for purposes of compliance with Rule 16a-2(a) under the Securities Exchange Act of 1934, as amended. The securities covered by such transaction were previously included on the Reporting Persons' Form 3.

F1 · derivative.exercise_date: The Series C-2 Preferred Stock, Series C-4 Preferred Stock, Series C-5 Preferred Stock, and Series D Preferred Stock (collectively, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock at a ratio of 2.59970:1 upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series C-2 Preferred Stock, Series C-4 Preferred Stock, Series C-5 Preferred Stock, and Series D Preferred Stock (collectively, the "Preferred Stock") was convertible at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering. The Preferred Stock converted into Common Stock at a ratio of 2.59970:1 upon the closing of the Issuer's initial public offering without payment of additional consideration. The Preferred Stock had no expiration date.

F2 · ownership.nature: These securities are held of record by OrbiMed Private Investments VII, LP ("OPI VII"). OrbiMed Capital GP VII LLC ("GP VII") is the general partner of OPI VII and OrbiMed Advisors LLC ("OrbiMed Advisors") is the managing member of GP VII. By virtue of such relationships, GP VII and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by OPI VII and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises its investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the securities held by OPI VII.

F3 · ownership.nature: This report on Form 4 is jointly filed by OrbiMed Advisors, GP VII, OrbiMed Advisors Israel II Limited ("OrbiMed Limited"), OrbiMed Israel GP II, L.P. ("OrbiMed Israel"), and OrbiMed Genesis GP LLC ("Genesis GP"). Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. The Reporting Persons have designated a representative, Chau Khuong, an employee of OrbiMed Advisors, to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the reporting persons is a beneficial owner of such securities for the purposes of Section 16 of the Exchange Act, or for any other purposes.

SEC source: 0000947871-20-000750 · ownership.xml · nonDerivative · entry 2

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 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: 1,864,721

F1 · shares: These shares of the Issuer's common stock were sold in a registered public offering at a price of $28.00.

F3 · ownership.nature: These shares of the Issuer's common stock are held of record by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("Israel GP II") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("Advisors Israel II") is the general partner of Israel GP II. By virtue of such relationships, Israel GP II and Advisors Israel II may be deemed to have voting and investment power with respect to the shares held directly by OIP II noted above and, as a result, may be deemed to beneficially own such securities for purposes of Rule 13d-3 under the Exchange Act. Advisors Israel II exercises this investment and voting power through a management committee comprised of Carl L. Gordon, Jonathan T. Silverstein, Nissim Darvish, Anat Naschitz ("Naschitz"), and Erez Chimovits, each of whom disclaims beneficial ownership of the shares held by OIP II.

F4 · ownership.nature: This report is being jointly filed by OrbiMed Advisors, OrbiMed GP VI, Israel GP II, and Advisors Israel II. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. The Reporting Persons have designated Naschitz to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons or Naschitz is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-20-000750 · ownership.xml · nonDerivative · entry 1

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 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: 1,864,721

F1 · shares: These shares of the Issuer's common stock were sold in a registered public offering at a price of $28.00.

F2 · ownership.nature: These shares of the Issuer's common stock are held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("OrbiMed GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("OrbiMed Advisors"), a registered investment adviser under the Investment Advisors Act of 1940, as amended, is the managing member of OrbiMed GP VI. By virtue of such relationships, OrbiMed GP VI and OrbiMed Advisors may be deemed to have voting and investment power with respect to the securities held by OPI VI noted above and, as a result, may be deemed to beneficially own such securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). OrbiMed Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the shares held by OPI VI.

F4 · ownership.nature: This report is being jointly filed by OrbiMed Advisors, OrbiMed GP VI, Israel GP II, and Advisors Israel II. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. The Reporting Persons have designated Naschitz to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons or Naschitz is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-20-000738 · ownership.xml · derivative · entry 6

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP V LLC · CIK 0001615374 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

OrbiMed Israel GP Ltd. · CIK 0001569590 · Director · 10% owner

OrbiMed Israel BioFund GP Limited Partnership · CIK 0001569821 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 30,000

Underlying: Common Stock · 30,000 shares

Expires 2030-09-17

F10 · derivative.exercise_date: This option is held by Chimovits. 1/36th of the shares of the Issuer's common stock subject to the option shall vest on each of the next thirty-six (36) monthly anniversaries of the grant date, provided that Chimovits remains in continuous service as of the applicable vesting date. Pursuant to agreements with OrbiMed BioFund, OrbiMed Israel GP, OrbiMed Israel GP II, and OrbiMed Israel II, Chimovits is obligated to transfer these securities, or the economic benefit thereof, to OrbiMed BioFund, OrbiMed Israel GP, OrbiMed Israel GP II, and OrbiMed Israel II, which will in turn ensure that such securities or economic benefit are provided to OIP and OIP II.

F10 · ownership.nature: This option is held by Chimovits. 1/36th of the shares of the Issuer's common stock subject to the option shall vest on each of the next thirty-six (36) monthly anniversaries of the grant date, provided that Chimovits remains in continuous service as of the applicable vesting date. Pursuant to agreements with OrbiMed BioFund, OrbiMed Israel GP, OrbiMed Israel GP II, and OrbiMed Israel II, Chimovits is obligated to transfer these securities, or the economic benefit thereof, to OrbiMed BioFund, OrbiMed Israel GP, OrbiMed Israel GP II, and OrbiMed Israel II, which will in turn ensure that such securities or economic benefit are provided to OIP and OIP II.

SEC source: 0000947871-20-000738 · ownership.xml · derivative · entry 5

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP V LLC · CIK 0001615374 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

OrbiMed Israel GP Ltd. · CIK 0001569590 · Director · 10% owner

OrbiMed Israel BioFund GP Limited Partnership · CIK 0001569821 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 30,000

Underlying: Common Stock · 30,000 shares

Expires 2030-09-17

F9 · derivative.exercise_date: This option is held by Gordon. 1/36th of the shares of the Issuer's common stock subject to the option shall vest on each of the next thirty-six (36) monthly anniversaries of the grant date, provided that Gordon remains in continuous service as of the applicable vesting date. Pursuant to agreements with OrbiMed Advisors, GP V, and GP VI, Gordon is obligated to transfer these securities, or the economic benefit thereof, to OrbiMed Advisors, GP V, and GP VI, which will in turn ensure that such securities or economic benefits are provided to OPI V and OPI VI.

F9 · ownership.nature: This option is held by Gordon. 1/36th of the shares of the Issuer's common stock subject to the option shall vest on each of the next thirty-six (36) monthly anniversaries of the grant date, provided that Gordon remains in continuous service as of the applicable vesting date. Pursuant to agreements with OrbiMed Advisors, GP V, and GP VI, Gordon is obligated to transfer these securities, or the economic benefit thereof, to OrbiMed Advisors, GP V, and GP VI, which will in turn ensure that such securities or economic benefits are provided to OPI V and OPI VI.

SEC source: 0000947871-20-000738 · ownership.xml · nonDerivative · entry 4

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP V LLC · CIK 0001615374 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

OrbiMed Israel GP Ltd. · CIK 0001569590 · Director · 10% owner

OrbiMed Israel BioFund GP Limited Partnership · CIK 0001569821 · Director · 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: 292,607

F7 · price: Received in exchange for 2,359,734 shares of the common stock of Old Adicet on the closing of the Merger, as described in footnote 2.

F4 · ownership.nature: This report is being jointly filed by OrbiMed Advisors, OrbiMed GP V, OrbiMed GP VI, OrbiMed Israel GP II, OrbiMed Israel II, OrbiMed BioFund. and OrbiMed Israel GP. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons are a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The Reporting Persons have designated Carl L. Gordon ("Gordon") and Erez Chimovits ("Chimovits") to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons, Gordon, or Chimovits is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

F8 · ownership.nature: These shares of the Issuer's common stock are held of record by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OrbiMed Israel GP II") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Israel II") is the general partner of OrbiMed Israel GP II. By virtue of such relationships, OrbiMed Israel GP II and OrbiMed Israel II may be deemed to have voting and investment power with respect to the shares held directly by OIP II noted above and, as a result, may be deemed to beneficially own such securities for purposes of Rule 13d-3 under the Exchange Act. OrbiMed Israel II exercises this investment and voting power through a management committee comprised of Gordon, Jonathan T. Silverstein, Nissim Darvish, Anat Naschitz, and Chimovits, each of whom disclaims beneficial ownership of the shares held by OIP II.

SEC source: 0000947871-20-000738 · ownership.xml · nonDerivative · entry 3

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP V LLC · CIK 0001615374 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

OrbiMed Israel GP Ltd. · CIK 0001569590 · Director · 10% owner

OrbiMed Israel BioFund GP Limited Partnership · CIK 0001569821 · Director · 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: 902,855

F5 · price: Received in exchange for 7,281,335 shares of the common stock of Old Adicet on the closing of the Merger, as described in footnote 2.

F4 · ownership.nature: This report is being jointly filed by OrbiMed Advisors, OrbiMed GP V, OrbiMed GP VI, OrbiMed Israel GP II, OrbiMed Israel II, OrbiMed BioFund. and OrbiMed Israel GP. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons are a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The Reporting Persons have designated Carl L. Gordon ("Gordon") and Erez Chimovits ("Chimovits") to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons, Gordon, or Chimovits is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

F6 · ownership.nature: These shares of the Issuer's common stock are held of record by OrbiMed Israel Partners Limited Partnership ("OIP"). OrbiMed Israel BioFund GP Limited Partnership ("OrbiMed BioFund") is the general partner of OIP, and OrbiMed Israel GP Ltd. ("OrbiMed Israel GP") is the general partner of OrbiMed BioFund. By virtue of such relationships, OrbiMed BioFund and OrbiMed Israel GP may be deemed to have voting and investment power with respect to the shares held directly by OIP noted above and, as a result, may be deemed to beneficially own such securities for purposes of Rule 13d-3 under the Exchange Act. OrbiMed Israel GP exercises this investment and voting power through a management committee comprised of Gordon, Jonathan T. Silverstein, Nissim Darvish, Anat Naschitz, and Chimovits, each of whom disclaims beneficial ownership of the shares held by OIP.

SEC source: 0000947871-20-000738 · ownership.xml · nonDerivative · entry 2

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP V LLC · CIK 0001615374 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

OrbiMed Israel GP Ltd. · CIK 0001569590 · Director · 10% owner

OrbiMed Israel BioFund GP Limited Partnership · CIK 0001569821 · Director · 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: 4,822,960

F2 · price: Received in exchange for 38,894,843 shares of the common stock of Adicet Bio, Inc., ("Old Adicet") on the closing of the merger (the "Merger") pursuant to the Agreement and Plan of Merger dated April 18, 2020 (the "Merger Agreement") by and among the Issuer, Old Adicet and Project Oasis Merger Sub, Inc., a direct, wholly-owned subsidiary of the Issuer, whereby each share of Old Adicet common stock was canceled and automatically converted into .1240 shares of Issuer common stock (the "Exchange Ratio"), with fractional shares being eliminated after first being aggregated, as provided in the Merger Agreement. The Issuer was renamed Adicet Bio, Inc. following the closing of the Merger.

F3 · ownership.nature: These shares of the Issuer's common stock are held of record by OrbiMed Private Investments V, LP ("OPI V"). OrbiMed Capital GP V LLC ("GP V") is the general partner of OPI V, and OrbiMed Advisors is the managing member of GP V. By virtue of such relationships, GP V and OrbiMed Advisors may be deemed to have voting and investment power with respect to the securities held by OPI V noted above and as a result may be deemed to beneficially own such securities for purposes of Rule 13d-3 under the Exchange Act. OrbiMed Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the Shares held by OPI V.

F4 · ownership.nature: This report is being jointly filed by OrbiMed Advisors, OrbiMed GP V, OrbiMed GP VI, OrbiMed Israel GP II, OrbiMed Israel II, OrbiMed BioFund. and OrbiMed Israel GP. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons are a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The Reporting Persons have designated Carl L. Gordon ("Gordon") and Erez Chimovits ("Chimovits") to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons, Gordon, or Chimovits is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-19-027217 · doc4.xml · derivative · entry 6

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,277,858 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: The Series A Preferred Stock automatically converted into shares of the Issuer's common stock on a one-for-6.217 immediately prior the closing of the Issuer's initial public offering on November 13, 2019 and had no expiration date.

F2 · derivative.exercise_date: The Series A Preferred Stock automatically converted into shares of the Issuer's common stock on a one-for-6.217 immediately prior the closing of the Issuer's initial public offering on November 13, 2019 and had no expiration date.

F2 · derivative.expiration_date: The Series A Preferred Stock automatically converted into shares of the Issuer's common stock on a one-for-6.217 immediately prior the closing of the Issuer's initial public offering on November 13, 2019 and had no expiration date.

F4 · ownership.nature: These securities are held of record by OIP II. OrbiMed Israel GP II, L.P. ("Israel GP II") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("Advisors Israel II") is the general partner of Israel GP II. Advisors Israel II and Israel GP II may be deemed to have shared voting and investment power over all of the shares of common stock held by OIP II, and both Advisors Israel II and Israel GP II may be deemed to directly or indirectly, including by reason of their mutual affiliation, to be the beneficial owners of the shares held by OIP II. Advisors Israel II exercises this investment power through an investment committee comprised of Carl L. Gordon, Jonathan T. Silverstein, Nissim Darvish, Anat Naschitz, and Erez Chimovits, each of whom disclaims beneficial ownership of the shares held by OIP II.

F5 · ownership.nature: This report is being jointly filed by OrbiMed GP VI, OrbiMed Advisors, Israel GP II, and Advisors Israel II. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons are a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The Reporting Persons have designated Anat Naschitz ("Naschitz") to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons or Naschitz is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-19-027217 · doc4.xml · derivative · entry 5

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,277,858 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: The Series A Preferred Stock automatically converted into shares of the Issuer's common stock on a one-for-6.217 immediately prior the closing of the Issuer's initial public offering on November 13, 2019 and had no expiration date.

F2 · derivative.exercise_date: The Series A Preferred Stock automatically converted into shares of the Issuer's common stock on a one-for-6.217 immediately prior the closing of the Issuer's initial public offering on November 13, 2019 and had no expiration date.

F2 · derivative.expiration_date: The Series A Preferred Stock automatically converted into shares of the Issuer's common stock on a one-for-6.217 immediately prior the closing of the Issuer's initial public offering on November 13, 2019 and had no expiration date.

F3 · ownership.nature: These securities are held of record by OPI VI. OrbiMed Capital GP VI LLC ("OrbiMed GP VI") is the general partner of OPI VI and OrbiMed Advisors LLC ("OrbiMed Advisors"), a registered investment adviser under the Investment Advisors Act of 1940, as amended, is the managing member of OrbiMed GP VI. By virtue of such relationships, OrbiMed GP VI and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein. Each of OrbiMed GP VI, OrbiMed Advisors, Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein disclaims beneficial ownership of the shares held by OPI VI, except to the extent of its or his pecuniary interest therein if any.

F5 · ownership.nature: This report is being jointly filed by OrbiMed GP VI, OrbiMed Advisors, Israel GP II, and Advisors Israel II. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons are a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The Reporting Persons have designated Anat Naschitz ("Naschitz") to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons or Naschitz is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-19-027217 · doc4.xml · nonDerivative · entry 4

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,002,221

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 · price: The Series A Preferred Stock automatically converted into shares of the Issuer's common stock on a one-for-6.217 immediately prior the closing of the Issuer's initial public offering on November 13, 2019 and had no expiration date.

F4 · ownership.nature: These securities are held of record by OIP II. OrbiMed Israel GP II, L.P. ("Israel GP II") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("Advisors Israel II") is the general partner of Israel GP II. Advisors Israel II and Israel GP II may be deemed to have shared voting and investment power over all of the shares of common stock held by OIP II, and both Advisors Israel II and Israel GP II may be deemed to directly or indirectly, including by reason of their mutual affiliation, to be the beneficial owners of the shares held by OIP II. Advisors Israel II exercises this investment power through an investment committee comprised of Carl L. Gordon, Jonathan T. Silverstein, Nissim Darvish, Anat Naschitz, and Erez Chimovits, each of whom disclaims beneficial ownership of the shares held by OIP II.

F5 · ownership.nature: This report is being jointly filed by OrbiMed GP VI, OrbiMed Advisors, Israel GP II, and Advisors Israel II. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons are a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The Reporting Persons have designated Anat Naschitz ("Naschitz") to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons or Naschitz is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-19-027217 · doc4.xml · nonDerivative · entry 3

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,002,221

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 · price: The Series A Preferred Stock automatically converted into shares of the Issuer's common stock on a one-for-6.217 immediately prior the closing of the Issuer's initial public offering on November 13, 2019 and had no expiration date.

F3 · ownership.nature: These securities are held of record by OPI VI. OrbiMed Capital GP VI LLC ("OrbiMed GP VI") is the general partner of OPI VI and OrbiMed Advisors LLC ("OrbiMed Advisors"), a registered investment adviser under the Investment Advisors Act of 1940, as amended, is the managing member of OrbiMed GP VI. By virtue of such relationships, OrbiMed GP VI and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein. Each of OrbiMed GP VI, OrbiMed Advisors, Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein disclaims beneficial ownership of the shares held by OPI VI, except to the extent of its or his pecuniary interest therein if any.

F5 · ownership.nature: This report is being jointly filed by OrbiMed GP VI, OrbiMed Advisors, Israel GP II, and Advisors Israel II. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons are a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The Reporting Persons have designated Anat Naschitz ("Naschitz") to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons or Naschitz is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-19-027217 · doc4.xml · nonDerivative · entry 2

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 724,363

F1 · shares: On November 11, 2019, OrbiMed Private Investments VI, LP ("OPI VI") purchased 418,750 shares of the Issuer's common stock and OrbiMed Israel Partners II, L.P. ("OIP II") purchased 418,750 shares of the Issuer's common stock at a price of $16.00 per share in the Issuer's initial public offering.

F4 · ownership.nature: These securities are held of record by OIP II. OrbiMed Israel GP II, L.P. ("Israel GP II") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("Advisors Israel II") is the general partner of Israel GP II. Advisors Israel II and Israel GP II may be deemed to have shared voting and investment power over all of the shares of common stock held by OIP II, and both Advisors Israel II and Israel GP II may be deemed to directly or indirectly, including by reason of their mutual affiliation, to be the beneficial owners of the shares held by OIP II. Advisors Israel II exercises this investment power through an investment committee comprised of Carl L. Gordon, Jonathan T. Silverstein, Nissim Darvish, Anat Naschitz, and Erez Chimovits, each of whom disclaims beneficial ownership of the shares held by OIP II.

F5 · ownership.nature: This report is being jointly filed by OrbiMed GP VI, OrbiMed Advisors, Israel GP II, and Advisors Israel II. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons are a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The Reporting Persons have designated Anat Naschitz ("Naschitz") to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons or Naschitz is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-19-027217 · doc4.xml · nonDerivative · entry 1

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 724,363

F1 · shares: On November 11, 2019, OrbiMed Private Investments VI, LP ("OPI VI") purchased 418,750 shares of the Issuer's common stock and OrbiMed Israel Partners II, L.P. ("OIP II") purchased 418,750 shares of the Issuer's common stock at a price of $16.00 per share in the Issuer's initial public offering.

F3 · ownership.nature: These securities are held of record by OPI VI. OrbiMed Capital GP VI LLC ("OrbiMed GP VI") is the general partner of OPI VI and OrbiMed Advisors LLC ("OrbiMed Advisors"), a registered investment adviser under the Investment Advisors Act of 1940, as amended, is the managing member of OrbiMed GP VI. By virtue of such relationships, OrbiMed GP VI and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein. Each of OrbiMed GP VI, OrbiMed Advisors, Carl L. Gordon, Sven H. Borho, and Jonathan T. Silverstein disclaims beneficial ownership of the shares held by OPI VI, except to the extent of its or his pecuniary interest therein if any.

F5 · ownership.nature: This report is being jointly filed by OrbiMed GP VI, OrbiMed Advisors, Israel GP II, and Advisors Israel II. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons are a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The Reporting Persons have designated Anat Naschitz ("Naschitz") to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of the Reporting Persons or Naschitz is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-18-027481 · doc4.xml · derivative · entry 7

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Common Stock · 2,279,023 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: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F2 · derivative.exercise_date: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F2 · derivative.expiration_date: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F4 · ownership.nature: The reportable securities are owned directly by OrbiMed Private Investments VI ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("OrbiMed Advisors") is the managing member of GP VI. By virtue of such relationships, GP VI and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein.

F5 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Advisors, OIP GP and OrbiMed Limited. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-18-027481 · doc4.xml · derivative · entry 6

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 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: 2,279,023

Underlying: Common Stock · 1,595,316 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: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F2 · derivative.exercise_date: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F2 · derivative.expiration_date: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F3 · ownership.nature: The reportable securities are owned directly by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Limited exercises investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein. Erez Chimovits, a member of the Issuer's board of directors, is an employee of OrbiMed Limited.

F5 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Advisors, OIP GP and OrbiMed Limited. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-18-027481 · doc4.xml · derivative · entry 5

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 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 · 1,402,444 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: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F2 · derivative.exercise_date: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F2 · derivative.expiration_date: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F3 · ownership.nature: The reportable securities are owned directly by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Limited exercises investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein. Erez Chimovits, a member of the Issuer's board of directors, is an employee of OrbiMed Limited.

F5 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Advisors, OIP GP and OrbiMed Limited. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-18-027481 · doc4.xml · nonDerivative · entry 4

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 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: 6,466,783

F4 · ownership.nature: The reportable securities are owned directly by OrbiMed Private Investments VI ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("OrbiMed Advisors") is the managing member of GP VI. By virtue of such relationships, GP VI and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein.

F5 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Advisors, OIP GP and OrbiMed Limited. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-18-027481 · doc4.xml · nonDerivative · entry 3

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 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: 5,766,783

F3 · ownership.nature: The reportable securities are owned directly by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Limited exercises investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein. Erez Chimovits, a member of the Issuer's board of directors, is an employee of OrbiMed Limited.

F5 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Advisors, OIP GP and OrbiMed Limited. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-18-027481 · doc4.xml · nonDerivative · entry 2

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 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: 5,276,783

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 · price: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F4 · ownership.nature: The reportable securities are owned directly by OrbiMed Private Investments VI ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("OrbiMed Advisors") is the managing member of GP VI. By virtue of such relationships, GP VI and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein.

F5 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Advisors, OIP GP and OrbiMed Limited. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000899243-18-027481 · doc4.xml · nonDerivative · entry 1

ORBIMED ADVISORS LLC · CIK 0001055951 · Director · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · Director · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · Director · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · Director · 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: 2,997,760

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 total represents shares received upon conversion of Series A and Series B Convertible Preferred Stock.

F2 · price: Upon closing of the Issuer's initial public offering, each share of Series A and Series B Convertible Preferred Stock automatically converted into 0.5235794 shares of Common Stock without payment or further consideration. There was no expiration date for the Series A or Series B Convertible Preferred Stock.

F3 · ownership.nature: The reportable securities are owned directly by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities. OrbiMed Limited exercises investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein. Erez Chimovits, a member of the Issuer's board of directors, is an employee of OrbiMed Limited.

F5 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Advisors, OIP GP and OrbiMed Limited. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-18-000735 · ownership.xml · derivative · entry 8

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 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: Ordinary Shares · 348,500 shares

Expires 2022-04-24

F5 · price: At the Effective Time, each outstanding warrant to purchase Ordinary Shares of the Issuer issued in 2017 was converted into the right to receive $2.33.

F3 · ownership.nature: These securities were held of record by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities for purposes of Rule 13d-3 under the Exchange Act. OrbiMed Limited exercises this investment power through an investment committee comprised of Carl L. Gordon, Jonathan Silverstein, Nissim Darvish, Anat Naschitz, and Erez Chimovits, each of whom disclaims beneficial ownership of the securities held by OIP II.

F6 · ownership.nature: Samuel D. Isaly, who was included as a Reporting Person on previous reports under Section 16 of the Exchange Act filed by GP VI, OrbiMed Limited, OIP GP and Advisors, is no longer subject to Section 16 with respect to securities of the Issuer.

F7 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP and Advisors. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-18-000735 · ownership.xml · derivative · entry 7

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 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: Ordinary Shares · 348,500 shares

Expires 2022-04-24

F5 · price: At the Effective Time, each outstanding warrant to purchase Ordinary Shares of the Issuer issued in 2017 was converted into the right to receive $2.33.

F2 · ownership.nature: These securities were held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("Advisors"), a registered adviser under the Investment Advisors Act of 1940, as amended, is the managing member of GP VI. By virtue of such relationships, GP VI and Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the securities held by OPI VI.

F6 · ownership.nature: Samuel D. Isaly, who was included as a Reporting Person on previous reports under Section 16 of the Exchange Act filed by GP VI, OrbiMed Limited, OIP GP and Advisors, is no longer subject to Section 16 with respect to securities of the Issuer.

F7 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP and Advisors. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-18-000735 · ownership.xml · derivative · entry 6

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 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: Ordinary Shares · 1,536,098 shares

Expires 2021-08-03

F4 · price: Under the Merger Agreement, at the effective time of the merger (the "Effective Time"), each outstanding warrant to purchase Ordinary Shares of the Issuer issued in 2016 was converted into the right to receive $2.71.

F3 · ownership.nature: These securities were held of record by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities for purposes of Rule 13d-3 under the Exchange Act. OrbiMed Limited exercises this investment power through an investment committee comprised of Carl L. Gordon, Jonathan Silverstein, Nissim Darvish, Anat Naschitz, and Erez Chimovits, each of whom disclaims beneficial ownership of the securities held by OIP II.

F6 · ownership.nature: Samuel D. Isaly, who was included as a Reporting Person on previous reports under Section 16 of the Exchange Act filed by GP VI, OrbiMed Limited, OIP GP and Advisors, is no longer subject to Section 16 with respect to securities of the Issuer.

F7 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP and Advisors. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-18-000735 · ownership.xml · derivative · entry 5

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 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: Ordinary Shares · 1,536,098 shares

Expires 2021-08-03

F4 · price: Under the Merger Agreement, at the effective time of the merger (the "Effective Time"), each outstanding warrant to purchase Ordinary Shares of the Issuer issued in 2016 was converted into the right to receive $2.71.

F2 · ownership.nature: These securities were held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("Advisors"), a registered adviser under the Investment Advisors Act of 1940, as amended, is the managing member of GP VI. By virtue of such relationships, GP VI and Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the securities held by OPI VI.

F6 · ownership.nature: Samuel D. Isaly, who was included as a Reporting Person on previous reports under Section 16 of the Exchange Act filed by GP VI, OrbiMed Limited, OIP GP and Advisors, is no longer subject to Section 16 with respect to securities of the Issuer.

F7 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP and Advisors. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-18-000735 · ownership.xml · derivative · entry 4

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 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: 348,500

Underlying: Ordinary Shares · 55,000 shares

Expires 2022-04-24

F3 · ownership.nature: These securities were held of record by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities for purposes of Rule 13d-3 under the Exchange Act. OrbiMed Limited exercises this investment power through an investment committee comprised of Carl L. Gordon, Jonathan Silverstein, Nissim Darvish, Anat Naschitz, and Erez Chimovits, each of whom disclaims beneficial ownership of the securities held by OIP II.

F6 · ownership.nature: Samuel D. Isaly, who was included as a Reporting Person on previous reports under Section 16 of the Exchange Act filed by GP VI, OrbiMed Limited, OIP GP and Advisors, is no longer subject to Section 16 with respect to securities of the Issuer.

F7 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP and Advisors. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-18-000735 · ownership.xml · derivative · entry 3

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 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: 348,500

Underlying: Ordinary Shares · 55,000 shares

Expires 2022-04-24

F2 · ownership.nature: These securities were held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("Advisors"), a registered adviser under the Investment Advisors Act of 1940, as amended, is the managing member of GP VI. By virtue of such relationships, GP VI and Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the securities held by OPI VI.

F6 · ownership.nature: Samuel D. Isaly, who was included as a Reporting Person on previous reports under Section 16 of the Exchange Act filed by GP VI, OrbiMed Limited, OIP GP and Advisors, is no longer subject to Section 16 with respect to securities of the Issuer.

F7 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP and Advisors. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-18-000735 · ownership.xml · nonDerivative · entry 2

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 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

F1 · price: Disposed of pursuant to the merger agreement (the "Merger Agreement") between the Issuer, United Therapeutics Corporation and Daniel 24043 Ltd. Corporation. In addition to the cash consideration, each shareholder of the issuer also received one contractual contingent value right ("CVR") per Ordinary Share. Each CVR represents the right to receive $2.63 in cash upon the achievement of a specified milestone.

F3 · ownership.nature: These securities were held of record by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities for purposes of Rule 13d-3 under the Exchange Act. OrbiMed Limited exercises this investment power through an investment committee comprised of Carl L. Gordon, Jonathan Silverstein, Nissim Darvish, Anat Naschitz, and Erez Chimovits, each of whom disclaims beneficial ownership of the securities held by OIP II.

F6 · ownership.nature: Samuel D. Isaly, who was included as a Reporting Person on previous reports under Section 16 of the Exchange Act filed by GP VI, OrbiMed Limited, OIP GP and Advisors, is no longer subject to Section 16 with respect to securities of the Issuer.

F7 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP and Advisors. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-18-000735 · ownership.xml · nonDerivative · entry 1

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 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

F1 · price: Disposed of pursuant to the merger agreement (the "Merger Agreement") between the Issuer, United Therapeutics Corporation and Daniel 24043 Ltd. Corporation. In addition to the cash consideration, each shareholder of the issuer also received one contractual contingent value right ("CVR") per Ordinary Share. Each CVR represents the right to receive $2.63 in cash upon the achievement of a specified milestone.

F2 · ownership.nature: These securities were held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("Advisors"), a registered adviser under the Investment Advisors Act of 1940, as amended, is the managing member of GP VI. By virtue of such relationships, GP VI and Advisors may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, Sven H. Borho and Jonathan T. Silverstein, each of whom disclaims beneficial ownership of the securities held by OPI VI.

F6 · ownership.nature: Samuel D. Isaly, who was included as a Reporting Person on previous reports under Section 16 of the Exchange Act filed by GP VI, OrbiMed Limited, OIP GP and Advisors, is no longer subject to Section 16 with respect to securities of the Issuer.

F7 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP and Advisors. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-17-000331 · ss40633_4.xml · derivative · entry 4

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 10% owner

ISALY SAMUEL D · CIK 0001055949 · 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: 293,500

Underlying: Ordinary Shares · 293,500 shares

Expires 2022-04-24

F3 · security: Warrants ("Warrants") to purchase Ordinary Shares. The Warrants are immediately exercisable when issued, are exercisable for five years from the date of issuance and have an exercise price of $6.875 per Ordinary Share.

F3 · derivative.exercise_price: Warrants ("Warrants") to purchase Ordinary Shares. The Warrants are immediately exercisable when issued, are exercisable for five years from the date of issuance and have an exercise price of $6.875 per Ordinary Share.

F3 · derivative.exercise_date: Warrants ("Warrants") to purchase Ordinary Shares. The Warrants are immediately exercisable when issued, are exercisable for five years from the date of issuance and have an exercise price of $6.875 per Ordinary Share.

F2 · ownership.nature: These securities are held of record by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities.

F4 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP, Advisors, and Isaly. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-17-000331 · ss40633_4.xml · derivative · entry 3

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 10% owner

ISALY SAMUEL D · CIK 0001055949 · 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: 293,500

Underlying: Ordinary Shares · 293,500 shares

Expires 2022-04-24

F3 · security: Warrants ("Warrants") to purchase Ordinary Shares. The Warrants are immediately exercisable when issued, are exercisable for five years from the date of issuance and have an exercise price of $6.875 per Ordinary Share.

F3 · derivative.exercise_price: Warrants ("Warrants") to purchase Ordinary Shares. The Warrants are immediately exercisable when issued, are exercisable for five years from the date of issuance and have an exercise price of $6.875 per Ordinary Share.

F3 · derivative.exercise_date: Warrants ("Warrants") to purchase Ordinary Shares. The Warrants are immediately exercisable when issued, are exercisable for five years from the date of issuance and have an exercise price of $6.875 per Ordinary Share.

F1 · ownership.nature: These securities are held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("Advisors"), a registered adviser under the Investment Advisors Act of 1940, as amended, is the managing member of GP VI. Samuel D. Isaly ("Isaly"), a natural person, is the managing member of and owner of a controlling interest in Advisors. By virtue of such relationships, GP VI, Advisors and Isaly may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities.

F4 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP, Advisors, and Isaly. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-17-000331 · ss40633_4.xml · nonDerivative · entry 2

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 10% owner

ISALY SAMUEL D · CIK 0001055949 · 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: 2,123,098

F2 · ownership.nature: These securities are held of record by OrbiMed Israel Partners II, L.P. ("OIP II"). OrbiMed Israel GP II, L.P. ("OIP GP") is the general partner of OIP II, and OrbiMed Advisors Israel II Limited ("OrbiMed Limited") is the managing member of OIP GP. By virtue of such relationships, OIP GP and OrbiMed Limited may be deemed to have voting and investment power over the securities held by OIP II and as a result may be deemed to have beneficial ownership over such securities.

F4 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP, Advisors, and Isaly. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.

SEC source: 0000947871-17-000331 · ss40633_4.xml · nonDerivative · entry 1

ORBIMED ADVISORS LLC · CIK 0001055951 · 10% owner

OrbiMed Capital GP VI LLC · CIK 0001682115 · 10% owner

OrbiMed Advisors Israel II Ltd · CIK 0001682093 · 10% owner

OrbiMed Israel GP II, L.P. · CIK 0001682090 · 10% owner

ISALY SAMUEL D · CIK 0001055949 · 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: 2,123,098

F1 · ownership.nature: These securities are held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI, and OrbiMed Advisors LLC ("Advisors"), a registered adviser under the Investment Advisors Act of 1940, as amended, is the managing member of GP VI. Samuel D. Isaly ("Isaly"), a natural person, is the managing member of and owner of a controlling interest in Advisors. By virtue of such relationships, GP VI, Advisors and Isaly may be deemed to have voting and investment power over the securities held by OPI VI and as a result may be deemed to have beneficial ownership over such securities.

F4 · ownership.nature: This report on Form 4 is jointly filed by GP VI, OrbiMed Limited, OIP GP, Advisors, and Isaly. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.