Matinas Biopharma Holdings Inc., of Bedminster, N.J., announced the final closing of an $8 million private placement of 1.6 million series A preferred shares at $5 each. Net proceeds were approximately $6.9 million and will be used for research and development activities, a new manufacturing facility and for working capital and general corporate purposes. Sternaegis Ventures acted as the exclusive placement agent. Participants in the offering included members of the company's board and management, as well as affiliates of the placement agent.