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IPO Profile

Graybug Vision, Inc. (GRAY)

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3-Year Outlook
First Day Turnover


We are a clinical-stage biopharmaceutical company focused on developing transformative medicines for the treatment of diseases of the retina and optic nerve. Our novel proprietary technologies are designed to release drugs in ocular tissue at a controlled rate for up to 12 months in order to improve patient compliance, reduce healthcare burdens and, ultimately, deliver better clinical outcomes. Our lead product candidate, GB-102, is an intravitreal injection of a microparticle depot formulation of sunitinib, a potent inhibitor of neovascular growth and permeability, which are leading causes of retinal disease. We are developing GB-102 as a once-every-six months intravitreal injection for the treatment of wet age-related macular degeneration, or wet AMD, and diabetic macular edema, or DME. In our Phase 1/2a clinical trial, GB-102 administered as a single 1 mg dose was well-tolerated in wet AMD patients and demonstrated durable clinical evidence of disease control of at least six months in approximately 88% of patients in this cohort. GB-102 is currently in a dose-ranging, controlled and masked safety and efficacy Phase 2b clinical trial in patients with wet AMD. We expect to report topline data from this trial in the first half of 2021. We are also using our proprietary technologies to develop GB-103, a once-a-year formulation of GB-102, for the treatment of diabetic retinopathy, or DR, as well as GB-401, an intravitreally injectable depot formulation of a beta-adrenergic blocking agent prodrug with a dosing regimen of once every six months or longer for the treatment of primary open-angle glaucoma, or POAG. We believe that our product candidates could significantly improve clinical outcomes versus the respective standards of care for several ocular diseases.

Age-related macular degeneration, or AMD, is a chronic, progressive disease, a leading cause of vision loss in the elderly and estimated to affect approximately 15 million people in North America. The disease prevalence is approximately 85 to 90% nonexudative, or dry, AMD and 10 to 15% wet AMD. The therapeutic market for wet AMD in 2019 was estimated to be $7.9 billion worldwide and has historically grown by approximately 8% as a consequence of an aging population and the lack of preventative measures.

There is no cure for wet AMD. To maintain vision, patients must receive frequent intravitreal injections, up to 12 times per year, with short-acting anti-vascular endothelial growth factor, or VEGF, agents. Although the use of anti-VEGF treatments has revolutionized visual outcomes for patients, the need for frequent injection visits combined with the increasing prevalence of this disease puts an enormous pressure on healthcare systems and represents a severe burden for patients, caregivers and physicians. These dynamics often lead to a reduced frequency of treatment and result in suboptimal visual outcomes in real-world practice.

Investors Pre-IPO Holdings (%)
Google Ventures 30
Intel Ventures 20
Patricoff Ventures 5
Kleiner Perkins 18

Deal Highlights

Deal Tracker

Filing Date   21 Aug, 2020
Price Date   25 Sep, 2020
Offer Price $16.00
Offer Size 5M
Look Up Expiry Date   25 Mar, 2021
Earnings Release Date   Nov 1, 2018