0000073124 2026-07-30 2026-07-30 0000073124 1 2026-07-30 2026-07-30 0000073124 2 2026-07-30 2026-07-30 0000073124 3 2026-07-30 2026-07-30 0000073124 4 2026-07-30 2026-07-30 0000073124 5 2026-07-30 2026-07-30 0000073124 6 2026-07-30 2026-07-30 0000073124 7 2026-07-30 2026-07-30 iso4217:USD pure S-3 S-3ASR EX-FILING FEES 0000073124 NORTHERN TRUST CORP N/A N/A S-3 NORTHERN TRUST CORP false Debt Debt Securities true 0.0001381 false Equity Preferred Stock true 0.0001381 false Equity Depositary Shares true 0.0001381 false Equity Common Stock, $1.66 2/3 par value true 0.0001381 false Other Stock Purchase Contracts true 0.0001381 false Other Stock Purchase Units true 0.0001381 false Other Warrants true 0.0001381 0.00 0.00 0.00 0.00 0.00 (note 1a) A presently indeterminate number, principal amount or aggregate initial offering price of debt securities, shares of preferred stock, depositary shares, shares of common stock, stock purchase contracts, stock purchase units and warrants as may be issued from time to time at indeterminate prices is being registered hereunder. Securities registered hereunder may be sold separately, together or as units with other securities registered hereunder. Securities registered hereunder may be issuable upon conversion, exchange or exercise of any securities registered hereunder or that are represented by depositary shares, to the extent any such securities are by their terms, convertible into, or exchangeable or exercisable for, such securities, including under any applicable anti-dilution provisions. Separate consideration may or may not be received for securities that are issuable on exercise, conversion or exchange of other securities. (note 1b) In accordance with Rules 456(b) and 457(r), the registrant is deferring payment of all of the registration fee. (see note 1a) (see note 1b) (see note 1a) (see note 1b) (note 3b) In the event that the registrant elects to offer to the public fractional interests in shares of preferred stock registered hereunder, depositary shares, evidenced by depositary receipts, issued pursuant to a deposit agreement, will be distributed to those persons purchasing such fractional interests, and the shares of preferred stock will be issued to the depositary under any such agreement. (see note 1a) (see note 1b) (see note 1a) (see note 1b) (note 4d) Each stock purchase contract will be issued under a purchase agreement and will obligate holders to purchase from or sell to the registrant, and obligate the registrant to sell to or purchase from the holders, a specified number of shares of common stock, preferred stock, depositary shares or other securities. (see note 1a) (see note 1b) (note 6a) Each stock purchase unit will be issued under a unit agreement or indenture and will represent an interest in one or more stock purchase contracts and beneficial interests in debt securities or any other securities, in any combination, which may or may not be separable from one another. (see note 1a) (see note 1b)