Joint Filer Information
| Names: | Deerfield Mgmt III, L.P., Deerfield Mgmt HIF, L.P., Deerfield Management Company, L.P., Deerfield Private Design Fund III, L.P., Deerfield Healthcare Innovations Fund, L.P., Deerfield Partners, L.P., Deerfield Mgmt, L.P. |
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| Address: | 780 Third Avenue, 37th Floor New York, NY 10017 |
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| Designated Filer: | James E. Flynn |
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| Issuer and Ticker Symbol: | Homology Medicines, Inc. [FIXX] |
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| Date of Event Requiring Statement: | January 24, 2020 |
The undersigned, Deerfield Mgmt III, L.P., Deerfield Mgmt HIF, L.P., Deerfield Management Company, L.P., Deerfield Private Design Fund III, L.P., Deerfield Healthcare Innovations Fund, L.P., Deerfield Mgmt, L.P. and Deerfield Partners, L.P. are jointly filing the attached Changes in Beneficial Ownership on Form 4 with James E. Flynn with respect to the beneficial ownership of securities ofHomology Medicines, Inc.
Signatures:
DEERFIELD MGMT HIF, L.P. By: J.E. Flynn Capital HIF, LLC, General Partner By:/s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact | DEERFIELD MGMT III, L.P. By: J.E. Flynn Capital III, LLC, General Partner By:/s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact |
DEERFIELD MANAGEMENT COMPANY, L.P. By: Flynn Management LLC, General Partner By:/s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact | DEERFIELD PRIVATE DESIGN FUND III, L.P. By: Deerfield Mgmt III, L.P., General Partner By: J.E. Flynn Capital III, LLC, General Partner By:/s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact |
DEERFIELD HEALTHCARE INNOVATIONS FUND, L.P. By: Deerfield Mgmt HIF, L.P., General Partner By: J.E. Flynn Capital HIF, LLC, General Partner By:/s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact DEERFIELD MGMT, L.P. By: J.E. Flynn Capital, LLC, General Partner By:/s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact | DEERFIELD PARTNERS, L.P. By: Deerfield Mgmt, L.P., General Partner By: J.E. Flynn Capital, LLC, General Partner By:/s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact |
