Insider Transaction Report for Northern Trust Corp

Martin P. Slark, a director at Northern Trust Corp (NTRS), reported a series of transactions on April 21, 2026. He acquired 34.89 shares of common stock at a price of $171.74 per share, and an additional 989 shares at no cost. Following these transactions, Slark directly owns 22,335.47 shares. Additionally, he holds 4,769 shares indirectly by trust. The filing, dated April 23, 2026, was signed by David A. Serna as attorney-in-fact for Slark. One of the transactions involved stock units that convert to common stock on a one-for-one basis, as indicated by footnote F1.