 DALLAS--BUSINESS WIRE--Apex Fintech Solutions LLC Apex, the fintech for fintechs powering innovation and the future of digital wealth management, which has previously announced a merger with Northern Star Investment Corp. II Northern Star NYSE: NSTB, has acquired the Silver Management Group of Companies Silver, a leading provider of business and technology solutions for the investment services industry. Silvers expertise in regulatory cost basis and tax reporting will strengt 