Signet Healthcare Partners has announced it has closed its fourth life science fund, Signet Healthcare Partners IV L.P., with $137.2 million of capital commitments.

Signet, based in New York and founded in 1998, is a private equity fund that focuses on investments in commercial-stage healthcare companies, specifically pharmaceutical sector and medical technology companies.

Through Signet Healthcare Partners IV, the firm indicated it intends to invest in 10-12 companies and will typically invest $10-15 million per company.