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IPO Profile

Greenwich LifeSciences, Inc. (GLSI)

Offer Price
Offer Size
3-Year Outlook
First Day Turnover


We are a biopharmaceutical company that is developing GP2, an immunotherapy designed to prevent the recurrence of breast cancer following surgery. GP2 is a 9 amino acid transmembrane peptide of the HER2/neu protein, a cell surface receptor protein that is expressed in a variety of common cancers, including expression in 75% of breast cancers at low (1+), intermediate (2+), and high (3+ or over-expressor) levels. In a Phase IIb clinical trial completed in 2018, no recurrences were observed in the HER2/neu 3+ adjuvant setting after median 5 years of follow-up, if the patient received the 6 primary intradermal injections over the first 6 months. We are planning to commence a Phase III clinical trial in 2020.

GP2 is a HER2/neu transmembrane peptide that elicits a targeted immune response against HER2/neu-expressing cancers. Below is an image of a cell surface showing therapeutically relevant cell surface proteins in cancer. Breast cancers and other solid tumors with elevated expression of HER2/neu protein are highly aggressive with an increased disease recurrence and a worse prognosis.

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

Deal Highlights

Deal Tracker

Filing Date   24 Sep, 2020
Price Date   25 Sep, 2020
Offer Price $5.75
Offer Size 1M
Look Up Expiry Date   25 Mar, 2021
Earnings Release Date   Nov 1, 2018