Thomas Hartnett to serve as Head of Americas and EMEANEW YORK, Oct. 21, 2025 (GLOBE NEWSWIRE) -- Mizuho Financial Group today announced new leadership appointments in its global fixed income organization, part of Mizuho Securities. Effective immediately, Thomas Hartnett will serve as Head of Americas and EMEA Fixed Income. Previously responsible for the Americas fixed income division, Hartnett’s strategic remit will expand to include the businesses and operations across the Americas and Europe as a single, ...