POWER OF ATTORNEY

   The undersigned hereby constitutes and appoints each of Brad A.
Kopetsky, Secretary of Northern Trust Corporation, a Delaware corporation
(the "Corporation"), Deann M. Bogner, Assistant Secretary of the
Corporation, Bradley R. Gabriel, Assistant Secretary of the Corporation,
and David A. Serna, Assistant Secretary of the Corporation, as the
undersigned's true and lawful attorneys-in-fact to:

(1) execute for and on behalf of the undersigned, in the undersigned's
capacity as an executive officer of Northern Trust Corporation, a
Delaware corporation (the Corporation), Forms 3, 4, 5 in accordance
with Section 16(a) of the Securities Exchange Act of 1934 and the rules
thereunder and Form 144 under Rule 144 under the Securities Act of 1933;

(2) do and perform any and all acts for and on behalf of the undersigned
which may be necessary or desirable to complete and execute any such
Form 3, 4, 5, or 144 and complete and execute any amendment or amendments
thereto, and timely file any such form with the U.S. Securities and
Exchange Commission and any stock exchange or similar authority; and

(3) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of
benefit to, in the best interest of, or legally required by, the
undersigned, it being understood that the documents executed by such
attorney-in-fact on behalf of the undersigned pursuant to this Power of
Attorney shall be in such form and shall contain such terms and
conditions as such attorney-in-fact may approve in such attorney-in-
fact's discretion.

   The undersigned hereby grants to each such attorneys-in-fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the exercise
of any of the rights and powers herein granted, as fully to all intents
and purposes as the undersigned might or could do if personally
present, with full power of substitution or revocation, hereby
ratifying and confirming all that such attorneys-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or
cause or have caused to be done by virtue of this Power of Attorney
and the rights and powers herein granted.  The undersigned acknowledges
that the foregoing attorneys-in-fact, in serving in such capacity at
the request of the undersigned, are not assuming, nor is the
Corporation assuming, any of the undersigned's responsibilities to
comply with Section 16 of the Securities Exchange Act of 1934 or
Rule 144 of the Securities Act of 1933.

   This Power of Attorney shall supersede any power of attorney
previously granted by the undersigned with respect to the subject
matter herein and shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, 5 and 144 with
respect to the undersigned's holdings of, and transactions in,
securities issued by the Corporation, unless earlier revoked by the
undersigned in a signed document delivered to the Corporation.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 12th day of December, 2023.


/s/ Jane Karpinski
Jane Karpinski