NEW YORK–(BUSINESS WIRE)–Fitch Ratings has withdrawn Bank of N.T. Butterfield & Son Ltd.’s (BNTB) preferred stock rating following BNTB’s mandatory redemption of its 8% preferred stock on December 15. BNTB’s senior and subordinated ratings are unaffected by today’s action. Fitch is withdrawing BNTB’s preferred stock rating as the preferred stock issuance no longer exists following its full redemption by BNTB. Fitch’s ‘A+’ preferred stock rating reflects the unconditional guarantee provide