Brian P. Vieten Brian P. Vieten is hired as Research Analyst by Siebert Financial given Digital Assets Research launch. NEW YORK, Sept. 10, 2025 (GLOBE NEWSWIRE) -- Muriel Siebert & Co., LLC (Siebert), a subsidiary of Siebert Financial Corp. (NASDAQ: SIEB), today announced the launch of Digital Assets Research within its Capital Markets division and the appointment of Brian P. Vieten as Research Analyst. The group will publish institutional-grade research on cryptocurrency, blockchain infrastructure, We ...