NORTHERN TRUST CORP (NTRS) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-07-31 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: NORTHERN TRUST CORP (NTRS) CIK: 0000073124 --- Reporting Owner --- Name: SMITH DAVID BYRON JR CIK: 0001478669 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-07-31 | Code: G (Gift) Shares: +1,120 | Price: $0.00 Shares Owned After: 87,157 | Ownership: I (Indirect) | Nature: By Revocable Trust Footnotes: [F1] On July 31, 2026, a trust in which the reporting person has a partial direct pecuniary interest distributed 8,960 shares of the Corporation's common stock to such trust's beneficiaries, of which 1,120 shares were distributed to the reporting person. --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) Footnotes: [F2] Represents stock units payable automatically on a 1-for-1 basis in shares of the Corporation's common stock. [Holding #2] Security: Common Stock Ownership: I (Indirect) Footnotes: [F3] Shares are held in a trust established for the benefit of the reporting person and his children, of which the reporting person is a co-trustee and shares investment control. [Holding #3] Security: Common Stock Ownership: I (Indirect) Footnotes: [F4] Shares are held in a trust established for the benefit of one of the reporting person's children, of which the reporting person is a co-trustee and shares investment control. [Holding #4] Security: Common Stock Ownership: I (Indirect) Footnotes: [F4] Shares are held in a trust established for the benefit of one of the reporting person's children, of which the reporting person is a co-trustee and shares investment control. [Holding #5] Security: Common Stock Ownership: I (Indirect) Footnotes: [F4] Shares are held in a trust established for the benefit of one of the reporting person's children, of which the reporting person is a co-trustee and shares investment control. [Holding #6] Security: Common Stock Ownership: I (Indirect) Footnotes: [F1] On July 31, 2026, a trust in which the reporting person has a partial direct pecuniary interest distributed 8,960 shares of the Corporation's common stock to such trust's beneficiaries, of which 1,120 shares were distributed to the reporting person. [F5] These shares are held in a trust of which reporting person has a partial direct pecuniary interest. --- Footnotes (Complete Index) --- F1: On July 31, 2026, a trust in which the reporting person has a partial direct pecuniary interest distributed 8,960 shares of the Corporation's common stock to such trust's beneficiaries, of which 1,120 shares were distributed to the reporting person. F2: Represents stock units payable automatically on a 1-for-1 basis in shares of the Corporation's common stock. F3: Shares are held in a trust established for the benefit of the reporting person and his children, of which the reporting person is a co-trustee and shares investment control. F4: Shares are held in a trust established for the benefit of one of the reporting person's children, of which the reporting person is a co-trustee and shares investment control. F5: These shares are held in a trust of which reporting person has a partial direct pecuniary interest. --- Signature --- /s/ David A. Serna Attorney-in-Fact for David H. B. Smith, Jr. (2026-08-04)