Reporting Segments (Tables)

6 Months Ended

Jun. 30, 2026

Segment Reporting [Abstract]

Schedule of Results of Reporting Segments

The following table presents the earnings contributions and certain average balances of Northern Trust’s reporting segments for the three- and six-month periods ended June 30, 2026 and 2025.

TABLE 55: RESULTS OF REPORTING SEGMENTS

($ In Millions)	ASSET SERVICING						WEALTH MANAGEMENT						OTHER						TOTAL CONSOLIDATED
THREE MONTHS ENDED JUNE 30,	2026			2025			2026			2025			2026			2025			2026			2025
Noninterest Income
Trust, Investment and Other Servicing Fees	$	757.4		$	691.8		$	592.1		$	539.3		$	—		$	—		$	1,349.5		$	1,231.1
Foreign Exchange Trading Income (Loss)	98.9			61.0			(1.8)			(10.4)			—			—			97.1			50.6
Other Noninterest Income	89.3			70.6			35.8			34.6			450.8			0.5			575.9			105.7
Total Noninterest Income	945.6			823.4			626.1			563.5			450.8			0.5			2,022.5			1,387.4
Net Interest Income (Expense)(1)	416.1			347.2			265.3			268.3			(5.9)			(5.0)			675.5			610.5
Revenue(1)	1,361.7			1,170.6			891.4			831.8			444.9			(4.5)			2,698.0			1,997.9
Provision for Credit Losses	(2.7)			3.9			(1.6)			11.2			(1.0)			1.4			(5.3)			16.5
Noninterest Expense
Compensation and Benefits	111.7			90.9			176.3			163.6			580.0			478.0			868.0			732.5
Outside Services	31.4			43.5			13.6			17.0			201.3			186.5			246.3			247.0
Allocated Expense	875.3			741.5			348.6			306.7			(1,223.9)			(1,048.2)			—			—
Other Segment Items(2)	22.7			19.4			21.0			23.7			480.6			394.0			524.3			437.1
Total Noninterest Expense	1,041.1			895.3			559.5			511.0			38.0			10.3			1,638.6			1,416.6
Income (Loss) before Income Taxes(1)	323.3			271.4			333.5			309.6			407.9			(16.2)			1,064.7			564.8
Provision for Income Taxes(1)	72.9			58.2			83.2			75.6			116.4			9.7			272.5			143.5
Net Income (Loss)	$	250.4		$	213.2		$	250.3		$	234.0		$	291.5		$	(25.9)		$	792.2		$	421.3
Percentage of Consolidated Net Income	32		%	51		%	32		%	56		%	36		%	(7)		%	100		%	100		%
Average Assets	$	123,994.6		$	117,044.6		$	39,431.2		$	39,094.5		$	150.0		$	1,580.1		$	163,575.8		$	157,719.2
Average Loans	$	5,800.6		$	5,812.8		$	35,767.0		$	35,345.2		$	—		$	—		$	41,567.6		$	41,158.0
Average Deposits	$	100,980.6		$	95,506.7		$	26,715.1		$	25,291.0		$	150.0		$	1,580.1		$	127,845.7		$	122,377.8

(1) Financial measures stated on an FTE basis. The FTE adjustment was $7.6 million and $4.7 million for the three months ended June 30, 2026 and 2025, respectively, and is eliminated within “Other” in order for “Total Consolidated” to reconcile with the Consolidated Statement of Income.

(2) Other Segment Items include Occupancy, Equipment & Software and Other Operating Expense.

(In Millions)	ASSET SERVICING						WEALTH MANAGEMENT						OTHER						TOTAL CONSOLIDATED
SIX MONTHS ENDED JUNE 30,	2026			2025			2026			2025			2026			2025			2026			2025
Noninterest Income
Trust, Investment and Other Servicing Fees	$	1,497.9		$	1,363.7		$	1,193.0		$	1,081.2		$	—		$	—		$	2,690.9		$	2,444.9
Foreign Exchange Trading Income (Loss)	189.9			124.9			(5.1)			(15.6)			—			—			184.8			109.3
Other Noninterest Income (Loss)	174.2			139.2			69.7			68.1			454.6			(2.2)			698.5			205.1
Total Noninterest Income (Loss)	1,862.0			1,627.8			1,257.6			1,133.7			454.6			(2.2)			3,574.2			2,759.3
Net Interest Income (Expense)(1)	817.8			670.9			524.8			518.4			(13.1)			(10.7)			1,329.5			1,178.6
Revenue(1)	2,679.8			2,298.7			1,782.4			1,652.1			441.5			(12.9)			4,903.7			3,937.9
Provision for Credit Losses	(5.0)			6.0			—			10.3			(3.3)			1.2			(8.3)			17.5
Noninterest Expense
Compensation and Employee Benefits	219.2			202.1			353.6			335.3			1,117.4			949.2			1,690.2			1,486.6
Outside Services	61.2			90.2			24.6			31.3			397.2			370.7			483.0			492.2
Allocated Expense	1,663.4			1,451.8			699.4			615.3			(2,362.8)			(2,067.1)			—			—
Other Segment Items(2)	44.4			41.7			41.0			46.2			888.0			767.5			973.4			855.4
Total Noninterest Expense	1,988.2			1,785.8			1,118.6			1,028.1			39.8			20.3			3,146.6			2,834.2
Income (Loss) before Income Taxes(1)	696.6			506.9			663.8			613.7			405.0			(34.4)			1,765.4			1,086.2
Provision for Income Taxes(1)	156.1			109.1			165.6			150.0			125.9			13.8			447.6			272.9
Net Income (Loss)	$	540.5		$	397.8		$	498.2		$	463.7		$	279.1		$	(48.2)		$	1,317.8		$	813.3
Percentage of Consolidated Net Income	41		%	49		%	38		%	57		%	21		%	(6)		%	100		%	100		%
Average Assets	$	124,800.1		$	113,432.9		$	39,486.2		$	39,121.2		$	145.5		$	1,457.2		$	164,431.8		$	154,011.3
Average Loans	$	5,717.0		$	5,781.2		$	35,515.8		$	35,336.2		$	—		$	—		$	41,232.8		$	41,117.4
Average Deposits	$	101,696.8		$	92,418.8		$	26,593.1		$	25,290.3		$	145.5		$	1,457.2		$	128,435.4		$	119,166.3

(1) Financial measures stated on an FTE basis. The FTE adjustment was $15.2 million and $10.3 million for the six months ended June 30, 2026 and 2025, respectively, and is eliminated within “Other” in order for “Total Consolidated” to reconcile with the Consolidated Statement of Income.

(2) Other Segment Items include Occupancy, Equipment & Software and Other Operating Expense.