Bios Partners in Fort Worth, Texas, has filed to raise a $50 million second fund, according to a regulatory filing. The filing for Bios Fund II NT lists Leslie Kries, Jr.and Aaron Fletcher as managing partners. Kreis is also listed as manager of CAVU Advisors and Steelhead Capital, both of which are listed on the filing. Fletcher is listed as a manager of Bios Advisors, which is also included in the filing as the general partner of Bios Capital Management.

Bios Partners makes early-stage and growth-stage investments in biotech and medical device companies, according to its website. The fund lists no investors, and the minimum investment accepted from outside investors is $8,000.