Primarius Capital

Primarius Capital is a San Francisco family office handling public and private investments in small capitalization companies. Its founder, who has been its managing partner for more than 15 years according to a Processa Pharmaceuticals proxy statement filed in June 2026, earlier worked at Wall Street firms including Robertson Stephens and Goldman Sachs. Primarius Capital LLC filed a Schedule 13G with the SEC in February 2005.

Type: Single family office
Location: San Francisco, California, United States
Sectors: Public equities
Latest fund or filing: 14 Feb 2005

Sources

www.sec.gov/Archives/edgar/data/1533743/000149315226029326/formdef14a.htm
www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1316554

Last checked 10 Nov 2026. Is something wrong? Tell us.

Appears in 6 lists

Family offices in the San Francisco Bay Area (20)Family offices in California (56)Family offices that invest in public equities (274)Single family offices in the United States (288)Family offices in the United States (481)Single family offices (488)