Business Description of Business and Organization IVERIC bio, Inc. (the Company), formerly Ophthotech Corporation, was incorporated on January 5, 2007, in Delaware. The Company is a science-driven biopharmaceutical company with a focus on discovering and developing novel gene therapy solutions to treat orphan inherited retinal diseases ("IRDs") with unmet medical needs. In April 2019, the Company changed its name from Ophthotech Corporation to IVERIC bio, Inc. to reflect the transition of its business to focus principally on gene therapies. The Company believes that gene therapy as a treatment modality, especially gene therapies using adeno-associated virus ("AAV") for gene delivery, holds tremendous promise for retinal diseases. The Company also continues to develop its therapeutic programs, including its ongoing clinical trials for its C5 complement inhibitor Zimura (avacincaptad pegol) for an age-related retinal disease and for an orphan IRD. The Company's gene therapy portfolio consists of several ongoing research and preclinical development programs that use AAV for gene delivery. These AAV gene therapy programs are targeting the following orphan IRDs:  rhodopsin-mediated autosomal dominant retinitis pigmentosa ("RHO-adRP"), which is characterized by progressive and severe bilateral loss of vision leading to blindness;  IRDs associated with mutations in the BEST1 gene, including Best vitelliform macular dystrophy ("Best disease"), which is generally characterized by bilateral egg yolk-like lesions in the central portion of the retina (the "macula") that, over time, progress to atrophy and loss of vision;  Leber congenital amaurosis type 10 ("LCA10"), which is characterized by severe bilateral loss of vision at or soon after birth;  autosomal recessive Stargardt disease, which is characterized by progressive damage to the macula and retina, leading to loss of vision in children and young adults; and  IRDs associated with mutations in the USH2A gene, which include Usher syndrome type 2A ("Usher 2A") and USH2A -associated nonsyndromatic autosomal recessive retinitis pigmentosa. The Company's therapeutics portfolio consists of Zimura and its program of High temperature requirement A serine peptidase 1 protein ("HtrA1") inhibitors. The Company has Phase 2b clinical trials ongoing evaluating Zimura for the treatment of:  geographic atrophy ("GA"), which is a late-stage form of dry age-related macular degeneration ("AMD") characterized by retinal cell death and degeneration of tissue in the macula, and which may result in loss of vision; and  autosomal recessive Stargardt disease. The Company previously also evaluated Zimura in combination with Lucentis (ranibizumab), an anti-vascular endothelial growth factor ("anti-VEGF") agent, for the treatment of wet AMD, for which it completed a Phase 2a clinical trial during the fourth quarter of 2018. The Company does not currently have plans to develop Zimura further in wet AMD. The Company's HtrA1 inhibitor program, which it is developing for GA secondary to dry AMD and potentially other age-related retinal diseases, is in the preclinical stage of development. The Company's business development efforts have resulted in the expansion of its research and development pipeline and the transition of the Company to focus principally on gene therapy. The Company initiated multiple gene therapy sponsored research programs with the University of Massachusetts Medical School ("UMMS") in February 2018 and initiated an additional gene therapy sponsored research program with UMMS for USH2A -related IRDs in July 2019. Additionally, the Company in-licensed its novel AAV gene therapy product candidate for the treatment of RHO-adRP ("IC-100") from the University of Florida Research Foundation ("UFRF") and the University of Pennsylvania ("Penn") in June 2018, in-licensed its novel AAV gene therapy product candidate for the treatment of BEST1- related IRDs, including Best disease ("IC-200") from Penn and UFRF in April 2019 and in-licensed its minigene sponsored research program for LCA10 from the University of Massachusetts in July 2019 (See "Note 10Subsequent Event" for a description of this in-license transaction). The Company also acquired its HtrA1 inhibitor program through the acquisition of Inception 4, Inc. ("Inception 4") in October 2018.