NEW YORK–(BUSINESS WIRE)–Northern Star Investment Corp. II (“Northern Star”) (NYSE: NSTB), a publicly traded special purpose acquisition company, announced today that its merger partner, Apex Fintech Solutions LLC (“Apex” or the “Company”), the “fintech for fintechs” — the business-to-business platform that powers innovation in fintech, investing, and wealth management — reported results for the first quarter ended March 31, 2021. First Quarter 2021 Highlights Total customer accounts grew 85%