Pledged Assets, Accepted Collateral and Restricted Assets (Tables)

9 Months Ended

Sep. 30, 2025

Transfers and Servicing [Abstract]

Schedule of Financial Instruments Owned and Pledged as Collateral

The following table presents the carrying value of Northern Trust's pledged assets by type.

TABLE 51: TYPE OF PLEDGED ASSETS

(In Billions)	SEPTEMBER 30, 2025		DECEMBER 31, 2024
Debt Securities(1)	$	34.5	$	29.3
Loans(2)	9.4		9.5
Total Pledged Assets	$	43.9	$	38.8

(1) Debt securities are comprised of HTM and AFS securities.

(2) Loans pledged at the FHLB of Chicago and the Federal Reserve Bank of Chicago.

Schedule of Customer Securities for which Entity has Right to Sell or Repledge

The following table presents the fair value of securities accepted as collateral.

TABLE 52: ACCEPTED COLLATERAL

(In Millions)	SEPTEMBER 30, 2025		DECEMBER 31, 2024
Collateral that may be repledged or sold
Reverse repurchase agreements(1)(2)	$	65,391.9	$	65,311.1
Derivative contracts	2.9		23.6
Collateral that may not be repledged or sold
Reverse repurchase agreements	—		—
Total Collateral Accepted	$	65,394.8	$	65,334.7

(1) The fair value of securities collateral that was repledged or sold totaled $65.0 billion and $64.8 billion at September 30, 2025 and December 31, 2024, respectively.

(2) This includes collateral accepted as related to the FICC sponsored member program. Refer to Note 20—Commitments and Contingent Liabilities for further information.