# Valitor

> Valitor is a Berkeley biotechnology company developing longer-lasting protein-based medicines, initially for retinal disease. Its lead investigational therapy, VLTR-559, uses a multivalent polymer platform to pursue twice-yearly treatment for wet age-related macular degeneration; the evidence reported so far is preclinical.

- **Founded:** 2010
- **Headquarters:** Berkeley, United States
- **Founders:** Wesley Jackson (Co-founder; president and chief scientific officer), David Schaffer (Co-founder), Kevin Healy (Co-founder), Walter Moos (Co-founder)
- **Products:** VLTR-559, Multivalent Polymer (MVP) platform, VLTR-557
- **Notable:** Raised a $28 million Series B in October 2022., Reported preclinical VLTR-559 data at ARVO in 2025 and 2026., In 2026, reported a roughly 12-day vitreous half-life for VLTR-559 in preclinical models versus about 3 to 5 days for conventional anti-VEGF biologics.

## Products & services

- **VLTR-559** — Investigational long-acting anti-VEGF biologic for wet AMD, with diabetic macular edema listed as a follow-on indication; in IND-enabling development as of September 2026.
- **Multivalent Polymer (MVP) platform** — Proprietary biopolymer platform that attaches multiple bioactive molecules to a polymer chain to tune potency, tissue retention and durability.
- **VLTR-557** — Earlier anti-VEGF antibody conjugate publicly described as the lead program in 2022.

## Achievements

- Raised a $28 million Series B in October 2022.
- Reported preclinical VLTR-559 data at ARVO in 2025 and 2026.
- In 2026, reported a roughly 12-day vitreous half-life for VLTR-559 in preclinical models versus about 3 to 5 days for conventional anti-VEGF biologics.

## Latest updates

- **2026-07** — Announced a company overview presentation at the H.C. Wainwright ophthalmology conference.
- **2026-05** — Presented ARVO preclinical data on VLTR-559 durability, anti-VEGF activity and tolerability.
- **2025-10** — Named Gregory D. Kunst CEO and presented further preclinical VLTR-559 data.

## Links

- Website: https://www.valitorbio.com/
- LinkedIn: https://www.linkedin.com/company/valitor-inc-/
- Twitter/X: https://x.com/valitorbio

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Profile page: https://yespress.io/valitor
Published by YesPress — https://yespress.io
Last updated: 2026-09-29