Form 4 Filing for Michael Neff Michael Walter

This Form 4 filing details a transaction by Michael Neff Michael Walter, Chief Operating Officer of Bank of N.T. Butterfield & Son Ltd (NTB). On August 14, 2026, Mr. Walter disposed of 5,500 ordinary shares with a price per share of $63.6592. Following this transaction, his post-transaction share ownership is 43,218 ordinary shares. The transaction was reported on August 17, 2026, under signature by Tara Hidalgo, acting as power of attorney for Mr. Walter.