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Table of Contents





UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_____________________________

FORM 10-Q
xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the Quarterly Period Ended Septemberquarterly period ended June 30, 20172023
OR
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to
Commission File No. 001-36609
NORTHERN TRUST CORPORATION
(Exact name of registrant as specified in its charter)
Delaware36-2723087
(State or other jurisdiction of

incorporation or organization)
(I.R.S. Employer

Identification No.)
50 South LaSalle Street
Chicago, Illinois
60603
Chicago,Illinois(Zip Code)
(Address of principal executive offices)(Zip Code)
Registrant’s telephone number, including area code: (312) 630-6000

_____________________________Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading SymbolName of each exchange on which registered
Common Stock, $1.66 2/3 Par ValueNTRSThe NASDAQ Stock Market LLC
Depositary Shares, each representing 1/1,000th interest in a share of Series E Non-Cumulative Perpetual Preferred StockNTRSOThe NASDAQ Stock Market LLC
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  xNo  ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  xNo  ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):
Large accelerated filerxAccelerated filer¨
Large accelerated filerxAccelerated filer¨
Non-accelerated filer
¨  (Do not check if a smaller reporting company)
Smaller reporting company¨
Emerging growth company¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨   No  x
227,421,128 Shares –At June 30, 2023, 207,004,181 shares of common stock, $1.66 2/3 Par Value
(Shares of Common Stock Outstanding on September 30, 2017)
par value, were outstanding.








NORTHERN TRUST CORPORATION
QUARTERLY REPORT ON FORM 10-Q
FOR THE QUARTERLY PERIOD ENDED SEPTEMBERJUNE 30, 20172023
TABLE OF CONTENTS
Page

i

Table of Contents
CONSOLIDATED FINANCIAL HIGHLIGHTS
(UNAUDITED)

THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
CONDENSED INCOME STATEMENTS ($ In Millions)20232022
% CHANGE(1)
20232022
% CHANGE(1)
Noninterest Income$1,245.6 $1,310.0 (5)%$2,459.0 $2,647.7 (7)%
Net Interest Income511.5 458.7 12 1,042.7 839.7 24 
Total Revenue1,757.1 1,768.7 (1)3,501.7 3,487.4 — 
(Release of) Provision for Credit Losses(15.5)4.5 N/M(0.5)6.5 N/M
Noninterest Expense1,331.9 1,223.6 2,617.5 2,429.5 
Income before Income Taxes440.7 540.6 (18)884.7 1,051.4 (16)
Provision for Income Taxes108.9 144.4 (25)218.3 265.9 (18)
Net Income$331.8 $396.2 (16)%$666.4 $785.5 (15)%
PER COMMON SHARE
Net Income — Basic$1.56 $1.86 (16)%$3.07 $3.64 (16)%
— Diluted1.56 1.86 (16)3.07 3.63 (16)
Cash Dividends Declared Per Common Share0.75 0.70 1.50 1.40 
Book Value — End of Period (EOP)51.94 48.87 51.94 48.87 
Market Price — EOP74.14 96.48 (23)74.14 96.48 (23)
 Three Months Ended September 30, Nine Months Ended September 30,
CONDENSED INCOME STATEMENTS (In Millions)2017 2016 
% Change (1)
 2017 2016 
% Change (1)
Noninterest Income$991.0
 $910.6
 9% $2,901.6
 $2,809.8
 3 %
Net Interest Income354.2
 303.1
 17
 1,049.2
 910.6
 15
Provision for Credit Losses(7.0) (3.0) 134
 (15.0) (4.0) N/M
Noninterest Expense935.6
 843.0
 11
 2,767.5
 2,596.8
 7
Income before Income Taxes416.6
 373.7
 11
 1,198.3
 1,127.6
 6
Provision for Income Taxes118.2
 116.1
 2
 355.9
 361.6
 (2)
Net Income$298.4
 $257.6
 16% $842.4
 $766.0
 10 %
SELECTED BALANCE SHEET DATA ($ In Millions)JUNE 30, 2023DECEMBER 31, 2022
% CHANGE(1)
End of Period:
Total Assets$156,752.5 $155,036.7 %
Earning Assets145,042.1 142,484.7 
Deposits113,203.6 123,932.1 (9)
Stockholders’ Equity11,635.7 11,259.5 
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
20232022
% CHANGE(1)
20232022
% CHANGE(1)
Average Balances:
Total Assets$145,899.6 $154,084.1 (5)%$146,973.8 $158,091.3 (7)%
Earning Assets134,116.4 139,901.5 (4)135,031.8 144,807.8 (7)
Deposits105,598.7 129,393.8 (18)108,874.0 133,921.8 (19)
Stockholders’ Equity11,448.7 10,907.0 11,365.5 11,207.5 
PER COMMON SHARE           
Net Income — Basic$1.21
 $1.09
 11% $3.43
 $3.23
 6%
— Diluted1.20
 1.08
 11
 3.41
 3.21
 6
Cash Dividends Declared Per Common Share0.42
 0.38
 11
 1.18
 1.10
 7
Book Value — End of Period (EOP)40.82
 38.41
 6
 40.82
 38.41
 6
Market Price — EOP91.93
 67.99
 35
 91.93
 67.99
 35
CLIENT ASSETS ($ In Billions)JUNE 30, 2023DECEMBER 31, 2022
% CHANGE(1)
Assets Under Custody/Administration(2)
$14,478.9 $13,604.0 %
Assets Under Custody11,284.8 10,604.6 
Assets Under Management1,365.8 1,249.5 

N/M - Not meaningful

(1)    Percentage calculations are based on actual balances rather than the rounded amounts presented in the Consolidated Financial Highlights.
(2)    For the purposes of disclosing Assets Under Custody/Administration, to the extent that both custody and administration services are provided, the value of the assets is included only once in this amount.
SELECTED BALANCE SHEET DATA (In Millions)     
 September 30, 2017 December 31, 2016 
% Change (1)
End of Period:     
Assets$131,400.2
 $123,926.9
 6%
Earning Assets122,565.9
 115,446.4
 6
Deposits105,810.6
 101,651.7
 4
Stockholders’ Equity10,165.2
 9,770.4
 4


 Three Months Ended September 30, Nine Months Ended September 30,
 2017 2016 
% Change (1)
 2017 2016 
% Change (1)
Average Balances:           
Assets$121,159.4
 $116,382.5
 4% $118,696.0
 $114,909.9
 3%
Earning Assets112,485.0
 107,843.8
 4
 110,460.7
 106,363.7
 4
Deposits97,112.0
 93,773.9
 4
 96,269.6
 93,287.9
 3
Stockholders’ Equity10,040.2
 9,230.6
 9
 9,936.8
 8,906.0
 12

CLIENT ASSETS (In Billions)September 30, 2017 December 31, 2016 
% Change (1)
Assets Under Custody/Administration (2)
$9,696.0
 $8,541.3
 14%
Assets Under Custody7,753.8
 6,720.5
 15
Assets Under Management1,125.1
 942.4
 19
(1)
Percentage calculations are based on actual balances rather than the rounded amounts presented in the Consolidated Financial Highlights.
(2)
For the purposes of disclosing Assets Under Custody/Administration, to the extent that both custody and administration services are provided, the value of the assets is included only once.


1

Table of Contents
SELECTED RATIOS AND METRICS

THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
2023202220232022
Financial Ratios:
Return on Average Common Equity12.4 %15.7 %12.4 %14.9 %
Return on Average Assets0.91 1.03 0.91 1.00 
Dividend Payout Ratio48.1 37.6 48.9 38.6 
Net Interest Margin(1)
1.57 1.35 1.60 1.19 
JUNE 30, 2023DECEMBER 31, 2022
STANDARDIZED
APPROACH
ADVANCED
APPROACH
STANDARDIZED
APPROACH
ADVANCED
APPROACH
WELL-CAPITALIZED RATIOSMINIMUM CAPITAL RATIOS
Capital Ratios:
Northern Trust Corporation
Common Equity Tier 1 Capital11.3 %13.0 %10.8 %11.5 %N/A4.5 %
Tier 1 Capital12.3 14.1 11.8 12.5 6.0 6.0 
Total Capital14.4 16.3 13.9 14.5 10.0 8.0 
Tier 1 Leverage7.4 7.4 7.1 7.1 N/A4.0 
Supplementary LeverageN/A8.3 N/A7.9 N/A3.0 
The Northern Trust Company
Common Equity Tier 1 Capital12.1 %14.3 %11.6 %12.4 %6.5 %4.5 %
Tier 1 Capital12.1 14.3 11.6 12.4 8.0 6.0 
Total Capital13.9 16.2 13.5 14.2 10.0 8.0 
Tier 1 Leverage7.4 7.4 6.9 6.9 5.0 4.0 
Supplementary LeverageN/A8.2 N/A7.7 3.0 3.0 
 Three Months Ended September 30, Nine Months Ended September 30,
 2017 2016 2017 2016
Financial Ratios:       
Return on Average Common Equity12.2% 11.7% 11.8% 11.9%
Return on Average Assets0.98
 0.88
 0.95
 0.89
Dividend Payout Ratio35.0
 35.2
 34.6
 34.3
Net Interest Margin (1)
1.29
 1.14
 1.31
 1.17
(1)    Net interest margin is presented on a fully taxable equivalent (FTE) basis, a non-generally accepted accounting principle (GAAP) financial measure that facilitates the analysis of asset yields. The net interest margin on a GAAP basis and a reconciliation of net interest income on a GAAP basis to net interest income on an FTE basis are presented in “Reconciliation to Fully Taxable Equivalent” within the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” section.
 September 30, 2017 December 31, 2016
 
Advanced
Approach
 
Standardized
Approach
 
Advanced
Approach
 
Standardized
Approach
Capital Ratios:       
Northern Trust Corporation       
Common Equity Tier 113.3% 12.3% 12.4% 11.8%
Tier 114.6
 13.4
 13.7
 12.9
Total16.4
 15.4
 15.1
 14.5
Tier 1 Leverage8.0
 8.0
 8.0
 8.0
Supplementary Leverage6.9
 N/A
 6.8
 N/A
        
The Northern Trust Company       
Common Equity Tier 113.5% 12.2% 12.4% 11.5%
Tier 113.5
 12.2
 12.4
 11.5
Total15.1
 13.9
 14.0
 13.3
Tier 1 Leverage7.2
 7.2
 7.0
 7.0
Supplementary Leverage6.2
 N/A
 6.0
 N/A
(1)
Net interest margin is presented on a fully taxable equivalent (FTE) basis, a non-generally accepted accounting principle (GAAP) financial measure that facilitates the analysis of asset yields. The net interest margin on a GAAP basis and a reconciliation of net interest income on a GAAP basis to net interest income on an FTE basis are presented on page 28.


2






PART I – FINANCIAL INFORMATION
Items 2. and 3. Management’s Discussion and Analysis of Financial Condition and Results of Operations and Quantitative and Qualitative Disclosures about Market Risk
THIRD QUARTER CONSOLIDATED RESULTS OF OPERATIONS
General
The following is management’s discussion and analysis of the financial condition and results of operations (MD&A) of Northern Trust Corporation (the Corporation) is a financial holding company that is a leading provider(Corporation) for the second quarter of asset servicing, fund administration, asset management, fiduciary and banking solutions for corporations, institutions, families and individuals worldwide. The Corporation focuses on managing and servicing client assets through its two client-focused reporting segments: Corporate & Institutional Services (C&IS) and Wealth Management. Asset management and related services are provided to C&IS and Wealth Management clients primarily by the Asset Management business. Except where the context requires otherwise, the term “Northern Trust,” “we,” “us,” “our” or similar terms mean the Corporation and its subsidiaries on a consolidated basis.
2023. The following should be read in conjunction with the consolidated financial statements and related footnotes included in this report.report as well as the Annual Report on Form 10-K for the year ended December 31, 2022. Investors also should read the section entitled “Forward-Looking Statements.”
Certain terms used in this report are defined in the Glossary included in our Annual Report on Form 10-K for the year ended December 31, 2022.
SECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS
General
The Corporation is a leading provider of wealth management, asset servicing, asset management and banking solutions to corporations, institutions, families and individuals.The Corporation focuses on managing and servicing client assets through its two client-focused reporting segments: Asset Servicing and Wealth Management. Asset management and related services are provided to Asset Servicing and Wealth Management clients primarily by the Asset Management business. Except where the context requires otherwise, the terms “Northern Trust,” “we,” “us,” “our,” “its,” or similar terms mean the Corporation and its subsidiaries on a consolidated basis.
Overview of Financial Results
Net incomeIncome per diluted common share was $1.20$1.56 in the current quarter up from $1.08and $1.86 in the thirdsecond quarter of 2016.2022. Net income was $298.4Income decreased $64.4 million to $331.8 million in the current quarter as compared to $257.6from $396.2 million in the prior-year quarter. Annualized return on average common equity was 12.2%12.4% in the current quarter and 11.7%15.7% in the prior-year quarter. The annualized return on average assets was 0.98%0.91% in the current quarter as compared to 0.88%1.03% in the prior-year quarter.

Reflected in Net Income were impacts from the changes in monetary policy implemented by the Federal Reserve Board to address inflation, which positively impacted Net Interest Income relative to the prior-year quarter. The impacts of a tight labor market are reflected in our Compensation expense. Inflationary pressures were also reflected in higher Equipment and Software expense.
Revenue of $1.35decreased $11.6 million, or 1%, to $1.76 billion in the current quarter was up $131.5 million, or 11%, from $1.21$1.77 billion in the prior-year quarter.

Noninterest income increased $80.4Trust, Investment and Other Servicing Fees decreased $47.1 million, or 9%4%, from $1.14 billion in the prior-year quarter to $991.0$1.10 billion in the current quarter, primarily due to unfavorable lagged markets, asset outflows, and lower transaction volumes.
Other Noninterest Income decreased $17.3 million, or 10%, from $910.6$166.6 million in the prior-year quarter to $149.3 million in the current quarter, primarily reflecting lower Foreign Exchange Trading Income, partially offset by higher trust, investment and other servicing fees.

Other Operating Income.
Net interest incomeInterest Income increased 17%$52.8 million, or 12%, to $354.2$511.5 million in the current quarter as compared to $303.1$458.7 million in the prior-year quarter, primarily the result of adue to higher netaverage interest margin and an increase inrates, partially offset by lower average earning assets.

The provision for credit lossesThere was a $15.5 million release of credit of $7.0 millionreserves in the current quarter, as compared to a credit of $3.0$4.5 million Provision for Credit Losses in the prior-year quarter.

The current quarter release of credit reserves was primarily due to a decrease in the reserve evaluated on a collective basis, primarily driven by improved credit quality in certain commercial and institutional and certain commercial real estate (CRE) loans, partially offset by expectations for higher economic stress in the CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics.
Noninterest expense totaled $935.6Expense increased $108.3 million, or 9%, from $1.22 billion in the prior-year quarter to $1.33 billion in the current quarter, up $92.6 million, or 11%, from $843.0 million in the prior-year quarter, primarily attributable to higher compensation, other operating expense, equipmentCompensation, Equipment and software,Software, and outside services expense.Other Operating Expense.

The Provision for Income Taxes in the current quarter totaled $108.9 million, representing an effective tax rate of 24.7%. The Provision for Income Taxes in the prior-year quarter totaled $144.4 million, representing an effective tax rate of 26.7%. The effective tax rate decreased compared to the prior-year quarter primarily due to a lower net tax impact from international operations.
3

THIRD QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Income

The components of noninterest income are provided below.
Table 1: Noninterest Income
Noninterest IncomeThree Months Ended September 30,    
($ In Millions)2017 2016 Change
Trust, Investment and Other Servicing Fees$867.9
 $788.3
 $79.6
 10 %
Foreign Exchange Trading Income49.1
 53.6
 (4.5) (8)
Treasury Management Fees13.2
 15.0
 (1.8) (12)
Security Commissions and Trading Income21.2
 20.4
 0.8
 4
Other Operating Income40.0
 33.1
 6.9
 21
Investment Security (Losses) Gains, net(0.4) 0.2
 (0.6) N/M
Total Noninterest Income$991.0
 $910.6
 $80.4
 9 %
Trust, investmentInvestment and other servicing feesOther Servicing Fees
Trust, Investment and Other Servicing Fees are based primarily on:on the market value of assets held in custody, managed or serviced; the volume of transactions; securities lending volume and spreads; and fees for other services rendered. Certain market-value-basedmarket value calculations on which fees are calculatedbased are performed on asseta monthly or quarterly basis in arrears.
3

SECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Trust, Investment and Other Servicing Fees (continued)

Northern Trust voluntarily waived $2.3 million of money market fund fees for the three months ended June 30, 2023 and $8.6 million of money market fund fees for the three months ended June 30, 2022.
The components of Trust, Investment and Other Servicing Fees are provided below.
TABLE 1: TRUST, INVESTMENT AND OTHER SERVICING FEES
THREE MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Asset Servicing Trust, Investment and Other Servicing Fees
Custody and Fund Administration$427.4 $433.8 $(6.4)(1)%
Investment Management134.1 148.4 (14.3)(10)
Securities Lending21.5 21.6 (0.1)— 
Other38.2 38.9 (0.7)(2)
Total Asset Servicing Trust, Investment and Other Servicing Fees$621.2 $642.7 $(21.5)(3)%
Wealth Management Trust, Investment and Other Servicing Fees
Central$166.0 $177.4 $(11.4)(6)%
East124.1 128.1 (4.0)(3)
West93.7 98.7 (5.0)(5)
Global Family Office91.3 96.5 (5.2)(5)
Total Wealth Management Trust, Investment and Other Servicing Fees$475.1 $500.7 $(25.6)(5)%
Total Consolidated Trust, Investment and Other Servicing Fees$1,096.3 $1,143.4 $(47.1)(4)%
Asset Servicing
Custody and Fund Administration fees, the largest component of Asset Servicing fees, are driven primarily by values that are a month or quarter in arrears. For a further discussion of trust, investment and other servicing fees and how they are derived, refer to the “Reporting Segments” section.

Assetsclient assets under custody/administration (AUC/A), transaction volumes and the number of accounts. The asset values used to calculate these fees vary depending on the individual fee arrangements negotiated with each client. Custody fees related to asset values are client-specific and are priced based on month-end market values, quarter-end market values, or the average of month-end market values for the quarter. The fund administration fees that are asset-value-related are priced using month-end, quarter-end, or average daily balances. Investment Management fees are based generally on market values of client assets under management throughout the period. Typically, the asset values used to calculate fee revenue are based on a one-month or one-quarter lag. Securities Lending revenue is affected by market values; the demand for securities to be lent, which drives volumes; and the interest rate spread earned on the investment of cash deposited by investment firms as collateral for securities they have borrowed. The Other fee category in Asset Servicing includes such products as investment risk and analytical services, benefit payments, and other services. Revenue from these products is based generally on the volume of services provided or a fixed fee.
Custody and Fund Administration fees decreased from the prior-year quarter, primarily due to unfavorable lagged markets.
Investment Management fees decreased from the prior-year quarter, primarily due to asset outflows and unfavorable lagged markets.
Wealth Management
Wealth Management fee income is calculated primarily based on market values and is impacted by both one-month and one-quarter lagged asset values. Fee income in the regions (Central, East and West) decreased from the prior-year quarter, primarily due to unfavorable lagged markets and product-related asset outflows. Global Family Office fee income decreased from the prior-year quarter, primarily due to unfavorable lagged markets.
Market Indices
The following tables present selected market indices and the percentage changes year-over-year to provide context regarding equity and fixed income market impacts on the Corporation’s results.
TABLE 2: EQUITY MARKET INDICES
DAILY AVERAGESPERIOD-END
THREE MONTHS ENDED JUNE 30,AS OF JUNE 30,
20232022CHANGE20232022CHANGE
S&P 5004,205 4,112 %4,450 3,785 18 %
MSCI EAFE (U.S. dollars)2,121 2,001 2,132 1,846 15 
MSCI EAFE (local currency)1,337 1,253 1,357 1,188 14 
4

SECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Trust, Investment and Other Servicing Fees (continued)

TABLE 3: FIXED INCOME MARKET INDICES
AS OF JUNE 30,
20232022CHANGE
Barclays Capital U.S. Aggregate Bond Index2,092 2,111 (1)%
Barclays Capital Global Aggregate Bond Index452 458 (1)
Client Assets
As noted above, AUC/A and assets under management formare two of the primary drivers of our trust, investmentTrust, Investment and other servicing fees.Other Servicing Fees. For the purposes of disclosing AUC/A, to the extent that both custody and administration services are provided, the value of the assets is included only once.once in this amount. The following table presents AUC/A by reporting segment.
Table 2: Assets Under CustodyTABLE 4: ASSETS UNDER CUSTODY / AdministrationADMINISTRATION BY REPORTING SEGMENT
JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022CHANGE Q2-23/Q1-23CHANGE Q2-23/Q2-22
Assets Under Custody / AdministrationSeptember 30, 2017 June 30, 2017 September 30, 2016 Change Q3-17/Q2-17 Change Q3-17/Q3-16
($ In Billions)($ In Billions)JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022CHANGE Q2-23/Q1-23CHANGE Q2-23/Q2-22
Corporate & Institutional$9,062.8
 $8,690.8
 $7,951.7
 4% 14%
Asset ServicingAsset Servicing$13,483.5 $13,221.5 $12,812.2 %%
Wealth Management633.2
 603.4
 544.0
 5
 16
Wealth Management995.4 953.3 921.5 
Total Assets Under Custody / Administration$9,696.0
 $9,294.2
 $8,495.7
 4% 14%Total Assets Under Custody / Administration$14,478.9 $14,174.8 $13,733.7 %%
The following table presents Northern Trust’s assets under custody, a component of AUC/A, by reporting segment.
Table 3: Assets Under CustodyTABLE 5: ASSETS UNDER CUSTODY BY REPORTING SEGMENT
JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022CHANGE Q2-23/Q1-23CHANGE Q2-23/Q2-22
($ In Billions)
Asset Servicing$10,295.7 $10,065.6 $9,771.2 %%
Wealth Management989.1 947.6 913.0 
Total Assets Under Custody$11,284.8 $11,013.2 $10,684.2 %%
Assets Under CustodySeptember 30, 2017 June 30, 2017 September 30, 2016 Change Q3-17/Q2-17 Change Q3-17/Q3-16
($ In Billions)
Corporate & Institutional$7,130.9
 $6,786.3
 $6,173.6
 5% 16%
Wealth Management622.9
 593.3
 533.2
 5
 17
Total Assets Under Custody$7,753.8
 $7,379.6
 $6,706.8
 5% 16%
The 16% increase in consolidatedConsolidated assets under custody increased from $6.71 trillion as of September 30, 2016 to $7.75 trillion as of September 30, 2017the prior quarter and from the prior-year quarter, primarily reflected the impact ofreflecting favorable markets and new business.


4

Table of Contents
THIRD QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Income (continued)


favorable currency translation, partially offset by asset outflows.
The following table presents the allocation of Northern Trust’s custodied assets by reporting segment.
Table 4: Allocations of Assets Under CustodyTABLE 6: ALLOCATION OF ASSETS UNDER CUSTODY
JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022
ASWMTOTALASWMTOTALASWMTOTAL
Equities46 %60 %47 %45 %58 %46 %44 %56 %45 %
Fixed Income Securities33 13 31 33 14 32 35 15 33 
Cash and Other Assets19 27 21 20 28 20 19 29 20 
Securities Lending Collateral2  1 — — 
 September 30, 2017 June 30, 2017 September 30, 2016
Assets Under CustodyC&IS WM Total C&IS WM Total C&IS WM Total
Equities45% 57% 46% 45% 56% 46% 43% 55% 44%
Fixed Income38
 20
 36
 38
 20
 37
 39
 23
 38
Cash and Other Assets17
 23
 18
 17
 24
 17
 18
 22
 18
The following table presents Northern Trust’s assets under custody by investment type.
TABLE 7: ASSETS UNDER CUSTODY BY INVESTMENT TYPE
($ In Billions)JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022CHANGE Q2-23/Q1-23CHANGE Q2-23/Q2-22
Equities$5,328.7 $5,091.1 $4,785.5 %11 %
Fixed Income Securities3,524.7 3,501.4 3,513.8 — 
Cash and Other Assets2,262.6 2,252.8 2,215.6 — 
Securities Lending Collateral168.8 167.9 169.3 — 
Total Assets Under Custody$11,284.8 $11,013.2 $10,684.2 %%
The following table presents Northern Trust’s assets under management by reporting segment.
Table 5: Assets Under ManagementTABLE 8: ASSETS UNDER MANAGEMENT BY REPORTING SEGMENT
JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022CHANGE Q2-23/Q1-23CHANGE Q2-23/Q2-22
($ In Billions)
Asset Servicing$989.8 $962.1 $950.0 %%
Wealth Management376.0 368.3 352.8 
Total Assets Under Management$1,365.8 $1,330.4 $1,302.8 %%
5

SECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Trust, Investment and Other Servicing Fees (continued)

Assets Under ManagementSeptember 30, 2017 June 30, 2017 September 30, 2016 Change Q3-17/Q2-17 Change Q3-17/Q3-16
($ In Billions)
Corporate & Institutional$840.7
 $762.7
 $703.6
 10% 19%
Wealth Management284.4
 266.1
 242.2
 7
 17
Total Assets Under Management$1,125.1
 $1,028.8
 $945.8
 9% 19%
The 19% increase in consolidatedConsolidated assets under management from $945.8 billion at September 30, 2016increased compared to $1.13 trillion asthe prior quarter, primarily reflecting the impact of September 30, 2017 was primarily due to new businessfavorable markets and favorable equity markets.
The following table presents Northern Trust’snet inflows, partially offset by unfavorable currency translation. Consolidated assets under management increased compared to the prior-year quarter, primarily reflecting the impact of favorable markets, partially offset by investment type.
Table 6: Assets Under Management by Investment Type
($ In Billions)September 30, 2017 June 30, 2017 September 30, 2016
Equities$572.5
 $531.3
 $479.3
Fixed Income178.3
 169.5
 162.8
Cash and Other Assets212.3
 197.0
 189.8
Securities Lending Collateral162.0
 131.0
 113.9
Total Assets Under Management$1,125.1
 $1,028.8
 $945.8
product-related outflows.
The following table presents the allocation of Northern Trust’s assets under management by reporting segment.
Table 7: Allocations of Assets Under ManagementTABLE 9: ALLOCATION OF ASSETS UNDER MANAGEMENT
JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022
ASWMTOTALASWMTOTALASWMTOTAL
Equities54 %55 %54 %54 %53 %54 %50 %52 %51 %
Fixed Income Securities11 21 14 11 22 14 12 23 15 
Cash and Other Assets18 24 20 18 25 19 20 25 21 
Securities Lending Collateral17  12 17 — 13 18 — 13 
 September 30, 2017 June 30, 2017 September 30, 2016
Assets Under ManagementC&IS WM Total C&IS WM Total C&IS WM Total
Equities51% 51% 51% 52% 49% 52% 52% 47% 51%
Fixed Income13
 25
 16
 13
 26
 16
 13
 29
 17
Cash and Other Assets17
 24
 19
 18
 25
 19
 19
 24
 20
Securities Lending Collateral19
 
 14
 17
 
 13
 16
 
 12
The following table presents Northern Trust’s assets under management by investment type.
For the twelve months ended September 30, 2017, the S&P 500 index increased 16.2%, the MSCI EAFE index (USD) increased 16.0%, and the MSCI EAFE index (local currency) increased 15.9%.TABLE 10: ASSETS UNDER MANAGEMENT BY INVESTMENT TYPE

($ In Billions)JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022CHANGE Q2-23/Q1-23CHANGE Q2-23/Q2-22
Equities$740.5 $712.1 $664.1 %12 %
Fixed Income Securities188.7 187.6 194.9 (3)
Cash and Other Assets267.8 262.8 274.5 (2)
Securities Lending Collateral168.8 167.9 169.3 — 
Total Assets Under Management$1,365.8 $1,330.4 $1,302.8 %%

5

Table of Contents
THIRD QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Income (continued)


The following table presents activity in consolidated assets under management by investment type.product.
Table 8: Activity in Consolidated Assets Under Management by Investment Type
TABLE 11: ACTIVITY IN CONSOLIDATED ASSETS UNDER MANAGEMENT BY PRODUCT
 Three Months EndedTHREE MONTHS ENDED
($ In Billions)($ In Billions)September 30, 2017June 30, 2017March 31, 2017December 31, 2016September 30, 2016($ In Billions)JUNE 30, 2023MARCH 31, 2023DECEMBER 31, 2022SEPTEMBER 30, 2022JUNE 30, 2022
Beginning Balance of AUMBeginning Balance of AUM$1,028.8
$1,001.3
$942.4
$945.8
$906.2
Beginning Balance of AUM$1,330.4 $1,249.5 $1,209.9 $1,302.8 $1,487.8 
Inflows by Investment Type 
Equity51.2
36.3
41.6
44.5
27.2
Inflows by ProductInflows by Product
Fixed Income19.8
11.6
13.7
16.2
13.1
Equities44.8 52.1 37.7 39.5 51.4 
Cash & Other Assets101.6
98.2
91.8
95.7
109.5
Fixed Income11.2 14.4 11.6 12.3 11.8 
Securities Lending Collateral45.5
24.9
29.6
24.8
27.1
Cash and Other Assets551.3 276.7 121.9 128.9 186.5 
    Securities Lending Collateral53.4 66.3 48.2 55.3 61.6 
Total InflowsTotal Inflows218.1
171.0
176.7
181.2
176.9
Total Inflows660.7 409.5 219.4 236.0 311.3 
  
Outflows by Investment Type 
Equity(41.0)(38.6)(38.4)(50.0)(26.6)
Outflows by ProductOutflows by Product
Fixed Income(13.0)(10.5)(13.0)(14.1)(8.8)Equities(54.7)(59.2)(42.8)(56.5)(60.6)
Cash & Other Assets(83.0)(99.5)(89.7)(98.4)(100.2)Fixed Income(10.2)(16.6)(12.7)(12.4)(14.8)
Securities Lending Collateral(14.4)(17.5)(18.0)(26.8)(21.4)Cash and Other Assets(529.7)(264.0)(128.5)(152.2)(220.3)
    Securities Lending Collateral(52.5)(46.7)(62.0)(62.5)(69.5)
Total OutflowsTotal Outflows(151.4)(166.1)(159.1)(189.3)(157.0)Total Outflows(647.1)(386.5)(246.0)(283.6)(365.2)
  
Net Inflows / (Outflows)66.7
4.9
17.6
(8.1)19.9
  
Net Inflows (Outflows)Net Inflows (Outflows)13.6 23.0 (26.6)(47.6)(53.9)
Market Performance, Currency & OtherMarket Performance, Currency & Other Market Performance, Currency & Other
Market Performance & Other26.6
18.2
38.9


Market Performance & Other27.7 52.4 55.9 (35.1)(118.5)
Currency3.0
4.4
2.4


Currency(5.9)5.5 10.3 (10.2)(12.6)
Total Market Performance, Currency & OtherTotal Market Performance, Currency & Other29.6
22.6
41.3
4.7
19.7
Total Market Performance, Currency & Other21.8 57.9 66.2 (45.3)(131.1)
  
Ending Balance of AUMEnding Balance of AUM$1,125.1
$1,028.8
$1,001.3
$942.4
$945.8
Ending Balance of AUM$1,365.8 $1,330.4 $1,249.5 $1,209.9 $1,302.8 

Foreign exchange trading income totaled $49.1 million in the current quarter, down $4.5 million, or 8%, compared to $53.6 million in the prior-year quarter. The decrease generally reflected lower currency volatility as compared to the prior-year quarter.

Other operating income totaled $40.0 million in the current quarter, up $6.9 million, or 21%, compared to $33.1 million in the prior-year quarter, reflecting $5.4 million of impairment charges and loss on sales related to a non-strategic loan and lease portfolio in the prior-year quarter as well as increases in other income. The components of other operating income are provided below.
Table 9: Other Operating Income
Other Operating IncomeThree Months Ended September 30,    
($ In Millions)2017 2016 Change
Loan Service Fees$12.7
 $14.0
 $(1.3) (9)%
Banking Service Fees12.6
 13.6
 (1.0) (7)
Other Income14.7
 5.5
 9.2
 170
Total Other Operating Income$40.0
 $33.1
 $6.9
 21 %

6

Table of Contents
THIRDSECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net InterestOther Noninterest Income

The components of Other Noninterest Income are provided below.
The following table presentsTABLE 12: OTHER NONINTEREST INCOME
THREE MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Foreign Exchange Trading Income$50.1 $77.6 $(27.5)(35)%
Treasury Management Fees7.9 10.6 (2.7)(24)
Security Commissions and Trading Income36.1 32.8 3.3 10 
Other Operating Income55.2 45.6 9.6 21 
Investment Security Gains (Losses), net — — N/M
Total Other Noninterest Income$149.3 $166.6 $(17.3)(10)%
N/M - Not meaningful
Foreign Exchange Trading Income decreased compared to the prior-year quarter primarily driven by lower client volumes and an analysis of average balancesunfavorable impact from foreign exchange swap activity.
Security Commissions and interest rate changes affecting net interest income.Trading Income increased primarily due to higher bond underwriting referral fees.
Table 10: AverageOther Operating Income increased compared to the prior-year quarter, primarily driven by higher income associated with a market value increase in supplemental compensation plans, higher non-trading foreign exchange income, and banking and credit-related services fees, partially offset by higher expenses related to existing swap agreements related to Visa Inc. Class B common shares. Please refer to Note 15—Other Operating Income to the consolidated financial statements provided in Item 1. Consolidated Balance Sheets with Analysis of Net Interest IncomeFinancial Statements (unaudited) for further detail.
 NORTHERN TRUST CORPORATION
(Interest and Rate on a Fully Taxable Equivalent Basis)THIRD QUARTER
2017 2016
($ In Millions)Interest 
Average
Balance
 
Rate (5)
 Interest 
Average
Balance
 
Rate (5)
Average Earning Assets           
            
Federal Reserve and Other Central Bank Deposits$44.9
 $25,182.9
 0.71% $21.8
 $20,829.6
 0.42%
Interest-Bearing Due from and Deposits with Banks (1)
16.0
 7,145.8
 0.88
 15.4
 8,232.2
 0.74
Federal Funds Sold and Securities Purchased under Agreements to Resell7.8
 1,945.8
 1.58
 4.4
 1,613.2
 1.08
Securities           
U.S. Government22.1
 6,002.2
 1.46
 19.9
 7,292.5
 1.08
Obligations of States and Political Subdivisions3.0
 845.3
 1.41
 3.3
 734.7
 1.80
Government Sponsored Agency65.4
 17,974.7
 1.45
 38.8
 17,583.7
 0.88
Other (2)
64.2
 19,920.1
 1.28
 48.5
 17,647.8
 1.09
Total Securities154.7
 44,742.3
 1.37
 110.5
 43,258.7
 1.02
Loans and Leases (3)
242.4
 33,468.2
 2.87
 204.1
 33,910.1
 2.39
Total Earning Assets465.8
 112,485.0
 1.64
 356.2

107,843.8
 1.31
Allowance for Credit Losses Assigned to Loans and Leases
 (155.1) 
 
 (192.9) 
Cash and Due from Banks and Other Central Bank Deposits (4)

 2,666.8
 
 
 1,933.8
 
Buildings and Equipment
 467.3
 
 
 441.3
 
Client Security Settlement Receivables
 917.0
 
 
 1,200.7
 
Goodwill
 523.9
 
 
 525.5
 
Other Assets
 4,254.5
 
 
 4,630.3
 
Total Assets$
 $121,159.4
 % $
 $116,382.5
 %
Average Source of Funds           
Deposits           
Savings, Money Market and Other$7.3
 $15,617.1
 0.19% $3.2
 $15,025.7
 0.08%
Savings Certificates and Other Time2.4
 1,255.1
 0.75
 2.1
 1,450.3
 0.58
Non-U.S. Offices — Interest-Bearing45.4
 58,503.4
 0.31
 14.7
 51,468.6
 0.11
Total Interest-Bearing Deposits55.1
 75,375.6
 0.29
 20.0
 67,944.6
 0.12
Short-Term Borrowings20.3
 7,264.5
 1.11
 6.6
 6,961.0
 0.38
Senior Notes11.5
 1,497.0
 3.11
 11.8
 1,496.3
 3.11
Long-Term Debt11.3
 1,672.5
 2.68
 6.8
 1,406.9
 1.91
Floating Rate Capital Debt1.4
 277.5
 1.87
 0.9
 277.4
 1.24
Total Interest-Related Funds99.6
 86,087.1
 0.46
 46.1
 78,086.2
 0.23
Interest Rate Spread
 
 1.18
 
 
 1.08
Demand and Other Noninterest-Bearing Deposits
 21,736.4
 
 
 25,829.3
 
Other Liabilities
 3,295.7
 
 
 3,236.4
 
Stockholders’ Equity
 10,040.2
 
 
 9,230.6
 
Total Liabilities and Stockholders’ Equity$
 $121,159.4
 % $
 $116,382.5
 %
Net Interest Income/Margin (FTE Adjusted)$366.2
 $
 1.29% $310.1
 $
 1.14%
Net Interest Income/Margin (Unadjusted)$354.2
 $
 1.25% $303.1
 $
 1.12%

7

Table of Contents
THIRD QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)


ANALYSIS OF NET INTEREST INCOME CHANGES
DUE TO VOLUME AND RATE
 Three Months Ended September 30, 2017/2016
 Change Due To
(In Millions)
Average
Balance
 Rate Total
Earning Assets (FTE)$19.2
 $90.4
 $109.6
Interest-Related Funds5.2
 48.3
 53.5
Net Interest Income (FTE)$14.0
 $42.1
 $56.1

(1)Interest-Bearing Due from and Deposits with Banks includes the interest-bearing component of Cash and Due from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
(2)Other securities include certain community development investments and Federal Home Loan Bank and Federal Reserve stock, which are classified in other assets in the consolidated balance sheets as of September 30, 2017 and 2016.
(3)Average balances include nonaccrual loans. Lease financing receivable balances are reduced by deferred income.
(4)Cash and Due from Banks and Other Central Bank Deposits includes the non-interest-bearing component of Federal Reserve and Other Central Bank Deposits as presented on the consolidated balance sheets.
(5)Rate calculations are based on actual balances rather than the rounded amounts presented in the Average Consolidated Balance Sheets with Analysis of Net Interest Income.

Notes:Net Interest Income (FTE Adjusted), a non-generally accepted accounting principle (GAAP) financial measure, includes adjustments to a fully taxable equivalent basis for loans and securities. Such adjustments are based on a blended federal and state tax rate of 38.1% and 37.8% for the three months ended September 30, 2017 and 2016, respectively. Total taxable equivalent interest adjustments amounted to $12.0 million and $7.0 million for the three months ended September 30, 2017 and 2016, respectively. A reconciliation of net interest income and net interest margin on a GAAP basis to net interest income and net interest margin on an FTE basis (each of which is a non-GAAP financial measure) is provided on page 28.
Interest revenue on cash collateral positions is reported above within interest-bearing deposits with banks and within loans and leases. Interest expense on cash collateral positions is reported above within non-U.S. offices interest-bearing deposits. Related cash collateral received from and deposited with derivative counterparties is recorded net of the associated derivative contract within other assets and other liabilities, respectively.
Net interest income is defined as the total of interest incomeInterest Income and amortized fees on earning assets, less interest expenseInterest Expense on deposits and borrowed funds, adjusted for the impact of interest-related hedging activity. Earning assets—including Federal Funds Sold, Securities Purchased under Agreements to Resell, Interest-Bearing Due From and Deposits with Banks, Federal Reserve and Other Central Bank Deposits, Securities, Loans, and Other Interest-Earning Assets—are financed by a large base of interest-bearing funds that include client deposits, short-term borrowings, Senior Notes and Long-Term Debt. Short-term borrowings include Federal Funds Purchased, Securities Sold Under Agreements to Repurchase, and Other Borrowings. Earning assets are also funded by noninterest-related funds, which include demand deposits and stockholders’ equity. Net Interest Income is subject to variations in the level and mix of earning assets and interest-bearing funds and their relative sensitivity to interest rates. In addition, the levels of nonaccruing assets and client compensating deposit balances used to pay for services impact Net Interest Income.
Net interest incomemargin is the difference between what we earn on our assets and what we pay for deposits and other sources of funding. The direction and level of interest rates are important factors in our earnings. Net interest margin is calculated by dividing annualized Net Interest Income by average interest-earning assets.
Net Interest Income stated on a fully taxable equivalent (FTE) basis totaled $366.2 million inis a non-generally accepted accounting principle (GAAP) financial measure that facilitates the current quarter, up $56.1 million, or 18%, compared to $310.1 million in the prior-year quarter. The increase was primarily the resultanalysis of asset yields. Management believes an FTE presentation provides a higherclearer indication of net interest margin and an increase in average earning assets. Average earning assetsmargins for the current quarter were $112.5 billion, up $4.7 billion, or 4%, from $107.8 billion in the prior-year quarter, primarily resulting from higher levels of short-term interest bearing deposits and securities, partially offset by a reduction in loans and leases. Earning asset growth was funded primarily by higher levels of interest-bearing deposits, partially offset by lower demand and other non-interest-bearing deposits.
The net interest margin on an FTE basis increased to 1.29% in the current quarter from 1.14% in the prior-year quarter primarily due to higher short-term interest rates, partially offset by a balance sheet mix shift.
comparative purposes. When adjusted to an FTE basis, yields on taxable, nontaxable, and partially taxable assets are comparable; however, the adjustment to an FTE basis has no impact on net income.Net Income. A reconciliation of Net Interest Income on a GAAP basis to Net Interest Income on an FTE basis is provided in “Reconciliation to Fully Taxable Equivalent” within this MD&A.

7

SECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)
The following tables present an analysis of average daily balances and interest rates affecting Net Interest Income and an analysis of Net Interest Income changes.
TABLE 13: AVERAGE CONSOLIDATED BALANCE SHEETS WITH ANALYSIS OF NET INTEREST INCOME
(INTEREST AND RATE ON A FULLY TAXABLE EQUIVALENT BASIS)SECOND QUARTER
20232022
($ In Millions)INTERESTAVERAGE BALANCE
AVERAGE RATE(7)
INTERESTAVERAGE BALANCE
AVERAGE RATE(7)
Interest-Earning Assets
Federal Reserve and Other Central Bank Deposits$398.9 $34,380.4 4.65 %$59.2 $36,691.1 0.65 %
Interest-Bearing Due from and Deposits with Banks(1)
32.1 4,573.4 2.82 6.5 4,227.6 0.62 
Federal Funds Sold0.1 2.9 5.25 — 2.2 0.75 
Securities Purchased under Agreements to Resell(2)
284.3 1,238.6 92.09 7.0 1,149.3 2.47 
Debt Securities
Available for Sale254.7 24,511.8 4.17 138.1 35,676.6 1.55 
Held to Maturity112.5 25,053.3 1.80 56.2 20,244.3 1.11 
Trading Account 0.2 42.53 — 0.4 5.40 
Total Debt Securities367.2 49,565.3 2.97 194.3 55,921.3 1.39 
Loans and Leases(3)
640.5 42,365.4 6.06 257.1 40,747.0 2.53 
Other Interest-Earning Assets(4)
25.0 1,990.4 5.04 11.8 1,163.0 4.07 
Total Interest-Earning Assets1,748.1 134,116.4 5.23 535.9 139,901.5 1.54 
Cash and Due from Banks and Other Central Bank Deposits(5)
 1,842.5  — 2,559.1  
Other Noninterest-Earning Assets 9,940.7  — 11,623.5  
Total Assets$ $145,899.6  %$— $154,084.1 — %
Average Source of Funds
Deposits
Savings, Money Market and Other$152.8 $22,961.2 2.67 %$18.7 $30,967.5 0.24 %
Savings Certificates and Other Time32.0 3,036.1 4.23 1.1 792.3 0.58 
Non-U.S. Offices — Interest-Bearing448.7 62,046.3 2.90 3.4 63,900.7 0.02 
Total Interest-Bearing Deposits633.5 88,043.6 2.89 23.2 95,660.5 0.10 
Federal Funds Purchased87.6 7,070.0 4.97 2.8 922.8 1.22 
Securities Sold under Agreements to Repurchase(2)
273.4 467.8 234.39 6.0 596.7 4.01 
Other Borrowings(6)
156.5 12,132.6 5.17 8.4 4,186.7 0.80 
Senior Notes42.1 2,761.1 6.14 18.9 2,885.1 2.65 
Long-Term Debt30.4 2,069.7 5.89 6.8 1,096.4 2.47 
Total Interest-Related Funds1,223.5 112,544.8 4.36 66.1 105,348.2 0.25 
Interest Rate Spread  0.87 — — 1.29 
Demand and Other Noninterest-Bearing Deposits 17,555.1  — 33,733.3 — 
Other Noninterest-Bearing Liabilities 4,351.0  — 4,095.6 — 
Stockholders’ Equity 11,448.7  — 10,907.0 — 
Total Liabilities and Stockholders’ Equity$ $145,899.6  %$— $154,084.1 — %
Net Interest Income/Margin (FTE Adjusted)$524.6 $ 1.57 %$469.8 $— 1.35 %
Net Interest Income/Margin (Unadjusted)$511.5 $ 1.53 %$458.7 $— 1.31 %
(1)Interest-Bearing Due from and Deposits with Banks includes the interest-bearing component of Cash and Due from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
(2)Includes the impact of balance sheet netting under master netting arrangements of approximately $21.3 billion and $2.8 billion for the three months ended June 30, 2023 and 2022, respectively. Excluding the impact of netting for the three months ended June 30, 2023 and 2022, the average interest rate on Securities Purchased under Agreements to Resell would be approximately 5.06% and 0.72%, respectively. Excluding the impact of netting for the three months ended June 30, 2023 and 2022, the average interest rate on Securities Sold under Agreements to Repurchase would be approximately 5.04% and 0.70%, respectively. Northern Trust nets securities sold under repurchase agreements against those purchased under resale agreements when there is a legally enforceable master netting agreement.
(3)Average balances include nonaccrual loans.
(4)Other Interest-Earning Assets include certain community development investments, collateral deposits with certain securities depositories and clearing houses, Federal Home Loan Bank and Federal Reserve stock, and money market investments which are classified in Other Assets on the consolidated balance sheets.
(5)Cash and Due from Banks and Other Central Bank Deposits includes the noninterest-bearing component of Federal Reserve and Other Central Bank Deposits on the consolidated balance sheets.
(6)Other Borrowings primarily includes advances from the Federal Home Loan Bank of Chicago.
(7)Rate calculations are based on actual balances rather than the rounded amounts presented in the average consolidated balance sheets with analysis of Net Interest Income.


8

SECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)
TABLE 14: ANALYSIS OF NET INTEREST INCOME CHANGES DUE TO VOLUME AND RATE(1)
(INTEREST AND RATE ON A FULLY TAXABLE EQUIVALENT BASIS)THREE MONTHS ENDED JUNE 30, 2023/2022
CHANGE DUE TO
(In Millions)AVERAGE BALANCEAVERAGE RATENET (DECREASE) INCREASE
Increase (Decrease) in Net Interest Income (FTE)
Federal Reserve and Other Central Bank Deposits$(3.9)$343.6 $339.7 
Interest-Bearing Due from and Deposits with Banks0.5 25.1 25.6 
Federal Funds Sold 0.1 0.1 
Securities Purchased under Agreements to Resell0.6 276.7 277.3 
Debt Securities
Available for Sale(64.8)181.4 116.6 
Held to Maturity15.6 40.7 56.3 
Trading Account   
Total Debt Securities(49.2)222.1 172.9 
Loans and Leases10.6 372.8 383.4 
Other Interest-Earning Assets9.9 3.3 13.2 
Total Interest Income$(31.5)$1,243.7 $1,212.2 
Interest-Bearing Deposits
Savings, Money Market and Other$(38.9)$173.0 $134.1 
Savings Certificates and Other Time9.5 21.4 30.9 
Non-U.S. Offices - Interest-Bearing(0.1)445.4 445.3 
Total Interest-Bearing Deposits(29.5)639.8 610.3 
Federal Funds Purchased58.0 26.8 84.8 
Securities Sold under Agreements to Repurchase(1.6)269.0 267.4 
Other Borrowings38.3 109.8 148.1 
Senior Notes(0.8)24.0 23.2 
Long-Term Debt9.3 14.3 23.6 
Total Interest Expense$73.7 $1,083.7 $1,157.4 
Increase (Decrease) in Net Interest Income (FTE)$(105.2)$160.0 $54.8 
(1)Changes not due solely to average balance changes or rate changes are allocated proportionately to average balance and rate based on their relative absolute magnitudes.
Notes:    Net Interest Income (FTE), a non-GAAP financial measure, includes adjustments to a fully taxable equivalent basis for loans, securities and other interest-earning assets. The adjustments are based on a federal income tax rate of 21.0%, where the rate is adjusted for applicable state income taxes, net of related federal tax benefit. Total taxable equivalent interest incomeadjustments amounted to $13.1 million and $11.1 million for the three months ended June 30, 2023 and 2022, respectively. A reconciliation of Net Interest Income and net interest margin on a GAAP basis to net interest incomeNet Interest Income and net interest margin on an FTE basis (each of which is a non-GAAP financial measure) is provided in “Reconciliation to Fully Taxable Equivalent” within this MD&A. Net interest margin is calculated by dividing annualized Net Interest Income by average interest-earning assets.
Interest revenue on page 28.cash collateral positions is reported above in Interest-Bearing Due from and Deposits with Banks and in Loans and Leases. Interest Expense on cash collateral positions is reported above in Non-U.S. Offices Interest-Bearing Deposits. Related cash collateral received from and deposited with derivative counterparties is recorded net of the associated derivative contract in Other Assets and Other Liabilities, respectively.
Net Interest Income, stated on a FTE basis, increased from the prior-year quarter, primarily due to higher average interest rates, partially offset by lower average earning assets. Average earning assets decreased from the prior-year quarter, primarily due to lower client deposits, partially offset by increased short-term borrowing activity.
The net interest margin on an FTE basis increased from the prior-year quarter, primarily due to higher average interest rates, partially offset by an unfavorable balance sheet mix shift.
Federal Reserve and other central bank depositsOther Central Bank Deposits averaged $25.2$34.4 billion up $4.4and decreased $2.3 billion, or 21%6%, from $20.8$36.7 billion in the prior-year quarter. Interest-Bearing Due from and Deposits with Banks averaged $4.6 billion and increased $0.4 billion, or 8%, from $4.2 billion in the prior-year quarter. Average securitiesSecurities were $44.7$49.6 billion up $1.4and decreased $6.3 billion, or 3%11%, from $43.3$55.9 billion in the prior-year quarter andquarter. Average Other Interest-Earning Assets include certain community development investments, Federal Home Loan Bank stock, collateral deposits with certain securities depositories and clearing houses, money market investments, and Federal Reserve stock of $276.1$902.5 million, $139.7$398.5 million, $355.2 million, $90.8 million, and $53.1$70.0 million, respectively, which are recorded in other assets inOther Assets on the consolidated balance sheets. Average taxable Securities were $46.7 billion in the current quarter and $53.2 billion in the prior-year quarter. Average nontaxable Securities, which represent securities that are primarily exempt from U.S. federal and state income taxes, were $2.9 billion in the current quarter and $2.7 billion in the prior-year quarter.
9

SECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)
Loans and leasesLeases averaged $33.5$42.4 billion down $441.9 million,and increased $1.7 billion, or 1%4%, from $33.9$40.7 billion in the prior-year quarter, primarily reflecting lowerhigher levels of residentialcommercial and institutional, commercial real estate, loans and commercialresidential real estate loans, partially offset by increases inlower levels of non-U.S. and private client and commercialloans. Commercial and institutional loans. Residential real estate loans averaged $7.6$12.9 billion down $1.1 billion,and increased $670.2 million, or 13%5%, from $8.7$12.3 billion for the prior-year quarter. Commercial real estate loans averaged $3.6$4.9 billion down $377.0and increased $620.5 million, or 9%14%, from $4.0$4.3 billion for the prior-year quarter. Residential real estate loans averaged $6.4 billion and increased $36.8 million, or 1%, from $6.3 billion for the prior-year quarter. Non-U.S. loans averaged $3.4 billion and decreased $475.1 million or 12%, from $3.8 billion for the prior-year quarter. Private client loans averaged $10.6$13.8 billion up $651.0and decreased $61.8 million or 7%, from $9.9$13.9 billion for the prior-year quarter. Commercial and institutional loans averaged $9.8 billion, up $368.6 million, or 4%, from $9.5 billion for the prior-year quarter.

8

Table of Contents
THIRD QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)


Northern Trust utilizes a diverse mix of funding sources. Total interest-bearing deposits averaged $75.4Average Interest-Bearing Deposits decreased $7.7 billion, or 8%, to an average of $88.0 billion in the current quarter compared to $67.9from $95.7 billion in the prior-year quarter,quarter. Other Average Interest-Related Funds increased $14.8 billion, or 153%, to an increaseaverage of $7.5 billion. Other interest-bearing funds averaged $10.7$24.5 billion in the current quarter compared to $10.1from $9.7 billion in the prior-year quarter. The balances within short-term borrowing classifications vary based on funding requirements and strategies, interest rate levels, changes in the volume of lower-cost deposit sources, and the availability of collateral to secure these borrowings. Average net noninterest-related funds utilized to fund earning assets decreased $3.4 billion, or 11%, to $26.4 billion
Interest expense for Interest-Bearing Deposits in the current quarter from $29.8 billion inwas driven by higher interest rates. Average Non-U.S. Offices Interest-Bearing Deposits comprised 70% and 67% of total average Interest-Bearing Deposits for the prior-year quarter, primarily resulting from lower levels of demandthree months ended June 30, 2023 and other noninterest bearing deposits and cash and due from banks, partially offset by increases in stockholders’ equity attributable to the issuance of Series D Non-Cumulative Perpetual Preferred Stock in August 2016 and earnings.2022, respectively.
Provision for Credit Losses
The provision for credit lossesThere was a $15.5 million release of credit of $7.0 millionreserves in the current quarter, as compared to a credit of $3.0$4.5 million Provision for Credit Losses in the prior-year quarter. The release of credit provisionreserves in the current quarter was primarily due to a decrease in the reserve evaluated on a collective basis, primarily driven by reductions in undrawn loan commitments and standby letters of credit as well as improved credit quality in thecertain commercial real estate portfolio each resulting in a reductionand institutional and certain CRE loans, partially offset by expectations for higher economic stress in the inherent allowance. CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics.
The Provision for Credit Losses in the prior-year quarter was primarily due to an increase in the reserve evaluated on a collective basis, partially offset by recoveries in the prior-year quarter. The increase in the collective basis reserve was primarily driven by market conditions and a higher risk of recession at the time as compared to the previous period, partially offset by improvements in credit quality mainly within the CRE and commercial and institutional portfolios.
Net recoveriescharge-offs in the current quarter were de minimis, reflecting $0.8 million of $1.6recoveries and $0.8 million resulting from recoveries of $5.1 million and charge-offs of $3.5 million, also contributed to the current quarter credit provision.charge-offs. The prior-year quarter included $0.8$5.5 million of net recoveries, resulting from $3.8reflecting $5.5 million of recoveries and $3.0 million ofde minimis charge-offs. NonperformingNonaccrual assets of $145.5$47.4 million decreased 20%$42.4 million, or 47%, from $181.0$89.8 million inat the end of the prior-year quarter. Residential real estate, commercial, and commercial real estate loans accounted for 88%, 6%, and 6%, respectively, of total nonperforming loans and leases at September 30, 2017.
For additional discussion of the provision and allowance for credit losses, refer to the “Asset Quality” section beginning on page 22.in this MD&A.
Noninterest Expense
The components of noninterest expenseNoninterest Expense are provided below.in the following table.
Table 11: Noninterest ExpenseTABLE 15: NONINTEREST EXPENSE
THREE MONTHS ENDED JUNE 30,
Noninterest ExpenseThree Months Ended September 30,    
($ In Millions)2017 2016 Change($ In Millions)20232022CHANGE
Compensation$418.3
 $382.1
 $36.2
 9%Compensation$604.5 $546.5 $58.0 11 %
Employee Benefits74.8
 73.2
 1.6
 2
Employee Benefits101.4 119.6 (18.2)(15)
Outside Services172.7
 157.6
 15.1
 10
Outside Services230.9 213.1 17.8 
Equipment and Software130.5
 114.5
 16.0
 14
Equipment and Software229.3 203.5 25.8 13 
Occupancy47.3
 44.2
 3.1
 7
Occupancy53.8 51.0 2.8 
Other Operating Expense92.0
 71.4
 20.6
 29
Other Operating Expense112.0 89.9 22.1 25 
Total Noninterest Expense$935.6
 $843.0
 $92.6
 11%Total Noninterest Expense$1,331.9 $1,223.6 $108.3 %
Compensation expense, the largest component of noninterest expense, totaled $418.3 million in the current quarter, up $36.2 million, or 9%,Noninterest Expense, increased compared to $382.1 million in the prior-year quarter, reflecting severance and related charges of $6.0 million in the current quarter as well as increases due to base pay adjustments, staff growth, and higher cash-based incentive accruals.
Employee benefits expense totaled $74.8 million in the current quarter, up 2% compared to $73.2 million in the prior-year quarter, including severance and related charges of $0.6 million in the current quarter as well as increases in payroll taxes and retirement plan expenses, partially offset by lower medical costs.
Outside services expense totaled $172.7 million in the current quarter, up $15.1 million, or 10%, compared to $157.6 million in the prior-year quarter, reflecting outplacement charges associated with severance activity of $0.4 million as well as higher consulting services, sub-custodian expenses, market data, and sub-advisor costs.
Equipment and software expense totaled $130.5 million in the current quarter, up $16.0 million, or 14%, compared to $114.5 million in the prior-year quarter, primarily reflecting increased software amortization, computer maintenance and rental costs, and software support costs.
Occupancy expense totaled $47.3 million in the current quarter, up 7% compared to $44.2 million in the prior-year quarter, primarily due to accelerated depreciation$36.7 million of severance-related charges and higher salaries, partially offset by lower incentives.
Employee Benefits expense relateddecreased compared to the prior-year quarter primarily due to a previously announced facility exit.U.S. Qualified Plan pension settlement charge of $20.3 million in the prior-year quarter.

Outside Services expense increased compared to the prior-year quarter primarily due to higher technical services.
Equipment and Software expense increased compared to the prior-year quarter, primarily due to higher amortization as well as higher software costs driven by continued technology investments.
9
10

Table of Contents
THIRDSECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Expense (continued)

Other operating expense totaled $92.0 million in the current quarter, up $20.6 million, or 29%, from $71.4 million inOperating Expense increased compared to the prior-year quarter primarily driven by the timing of the Northern Trust-sponsored PGA TOUR golf tournament and increases in various other expenses. Additionally, other operating expense in the prior-year quarter includeddue to a $3.5$25.6 million charge related to the write-off of an investment in connection with the settlement of the remaining securities lending litigation.a client capability.
The components of other operating expense are provided below.
Table 12: Other Operating Expense
Other Operating ExpenseThree Months Ended September 30,    
($ In Millions)2017 2016 Change
Business Promotion$36.5
 $19.2
 $17.3
 91 %
Staff Related10.2
 11.5
 (1.3) (12)
FDIC Insurance Premiums9.1
 9.5
 (0.4) (3)
Other Intangibles Amortization2.3
 2.0
 0.3
 21
Other Expenses33.9
 29.2
 4.7
 16
Total Other Operating Expense$92.0
 $71.4
 $20.6
 29
Provision for Income Taxes
Income tax expense for the three months ended SeptemberJune 30, 20172023 was $118.2$108.9 million, representing an effective tax rate of 28.4%24.7%, compared to $116.1$144.4 million in the prior-year quarter, representing an effective tax rate of 31.1%26.7%.
The increase in the provision for income taxeseffective tax rate decreased compared to the prior-year quarter primarily due to a lower net tax impact from international operations.
SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS
Overview of Financial Results
Net Income per diluted common share decreased in the current period to $3.07 from $3.63 in the comparable prior-year period. Net Income decreased $119.1 million, or 15%, to $666.4 million in the current period from $785.5 million in the prior-year period. Annualized return on average common equity was 12.4% in the current period and 14.9% in the prior-year period. The annualized return on average assets was 0.91% in the current period compared to 1.00% in the prior-year period.
Revenue for the six months ended June 30, 2023 increased $14.3 million from $3.49 billion in the prior-year period to $3.50 billion in the current period.
Trust, Investment and Other Servicing Fees decreased $151.9 million, or 7%, from $2.31 billion in the prior-year period to $2.16 billion in the current period, primarily driven by unfavorable lagged markets, asset outflows, and unfavorable currency translation, partially offset by lower money market fund fee waivers.
Other Noninterest Income decreased $36.8 million, or 11% from $335.9 million in the prior-year period to $299.1 million in the current period, primarily driven by lower Foreign Exchange Trading Income, partially offset by higher Other Operating Income.
Net Interest Income increased $203.0 million, or 24%, to $1.04 billion in the current period from $839.7 million in the prior-year period, primarily due to higher average interest rates, partially offset by lower average earning assets.
There was a $0.5 million release of credit reserves in the current period, as compared to a $6.5 million Provision for Credit Losses in the prior-year period. The release of credit reserves was primarily due to a decrease in the collective basis reserve, driven by improvements in credit quality within the commercial and institutional portfolio, partially offset by growth in the size and duration of the CRE portfolio and expectations of higher economic stress in the CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics.
Noninterest Expense increased $188.0 million, or 8%, from $2.43 billion in the prior-year period to $2.62 billion in the current period, primarily attributable to higher Compensation and Equipment and Software expense.
The Provision for Income Taxes for the six months ended June 30, 2023 totaled $218.3 million, representing an effective tax rate of 24.7%. The Provision for Income Taxes for the six months ended June 30, 2022 totaled $265.9 million, representing an effective tax rate of 25.3%. The effective tax rate decreased compared to the prior-year period primarily due to a decrease in pretax earnings and a higher level of tax benefits from tax-credit investments and tax-exempt income, partially offset by lower tax benefits from share-based compensation.
11

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Trust, Investment and Other Servicing Fees
Northern Trust voluntarily waived $4.3 million of money market fund fees for the six months ended June 30, 2023 as compared to $59.3 million for the six months ended June 30, 2022.
The components of Trust, Investment and Other Servicing Fees are provided in the table below.
TABLE 16: TRUST, INVESTMENT AND OTHER SERVICING FEES
SIX MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Asset Servicing Trust, Investment and Other Servicing Fees
Custody and Fund Administration$841.0 $886.5 $(45.5)(5)%
Investment Management260.3 295.3 (35.0)(12)
Securities Lending40.6 40.4 0.2 
Other82.3 82.9 (0.6)(1)
Total Asset Servicing Trust, Investment and Other Servicing Fees$1,224.2 $1,305.1 $(80.9)(6)%
Wealth Management Trust, Investment and Other Servicing Fees
Central$329.6 $359.1 $(29.5)(8)%
East243.9 262.1 (18.2)(7)
West184.9 200.1 (15.2)(8)
Global Family Office177.3 185.4 (8.1)(4)
Total Wealth Management Trust, Investment and Other Servicing Fees$935.7 $1,006.7 $(71.0)(7)%
Total Consolidated Trust, Investment and Other Servicing Fees$2,159.9 $2,311.8 $(151.9)(7)%
Asset Servicing
Custody and Fund Administration fees, the largest component of Asset Servicing fees, decreased primarily driven by unfavorable lagged markets. Investment Management fees decreased primarily due to asset outflows and unfavorable lagged markets, partially offset by lower money market fund fee waivers.
Wealth Management
Fee income in the regions (Central, East and West) decreased primarily due to unfavorable lagged markets and product-related asset outflows, partially offset by lower money market fund fee waivers. Global Family Office fee income decreased primarily due to unfavorable lagged markets, partially offset by lower money market fund fee waivers.

12

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Other Noninterest Income

The components of other noninterest income are provided in the following table.
TABLE 17: OTHER NONINTEREST INCOME
SIX MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Foreign Exchange Trading Income$103.1 $158.5 $(55.4)(35)%
Treasury Management Fees16.3 21.7 (5.4)(25)
Security Commissions and Trading Income70.8 69.0 1.8 
Other Operating Income102.0 86.7 15.3 18 
Investment Security Gains (Losses), net6.9 — 6.9 N/M
Total Other Noninterest Income$299.1 $335.9 $(36.8)(11)%
N/M - Not meaningful
Foreign Exchange Trading Income decreased from the prior-year period, primarily due to lower client volumes and an unfavorable impact from foreign exchange swap activity.
TreasuryManagementFees decreased from the prior-year period, primarily due to an increase in the earnings credit rate applied to client balances.
Other Operating Income increased from the prior-year period, primarily driven by higher income associated with a market value increase in supplemental compensation plans, increased income related to a bank-owned life insurance program, higher non-trading foreign exchange income, and increased income from banking and credit-related services fees, partially offset by higher expenses related to existing swap agreements related to Visa Inc. Class B common shares. Please refer to Note 15—Other Operating Income to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited) for further detail.
Investment Security Gains (Losses), net included a $6.9 million gain upon sale of certain available for sale debt securities in the current-year period. Please refer to Note 4—Securities to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited) for additional details related to the sale of available for sale debt securities.
13

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income
The following tables present an analysis of average daily balances and interest rate changes affecting Net Interest Income and an analysis of Net Interest Income changes.
TABLE 18: AVERAGE CONSOLIDATED BALANCE SHEETS WITH ANALYSIS OF NET INTEREST INCOME
(INTEREST AND RATE ON A FULLY TAXABLE EQUIVALENT BASIS)SIX MONTHS ENDED JUNE 30,
20232022
($ In Millions)INTERESTAVERAGE BALANCE
AVERAGE
RATE(7)
INTERESTAVERAGE BALANCE
AVERAGE
RATE(7)
Interest-Earning Assets
Federal Reserve and Other Central Bank Deposits$775.9 $35,504.9 4.41 %$76.8 $40,921.8 0.38 %
Interest-Bearing Due from and Deposits with Banks(1)
60.3 4,387.1 2.77 9.1 4,305.4 0.43 
Federal Funds Sold0.3 11.2 4.85 — 1.5 0.67 
Securities Purchased under Agreements to Resell(2)
410.2 1,142.9 72.38 7.9 921.7 1.74 
Debt Securities
Available for Sale489.4 24,769.8 3.98 258.6 36,581.4 1.43 
Held to Maturity216.3 25,216.8 1.72 105.5 20,773.3 1.02 
Trading Account 0.7 12.45 — 0.6 8.59 
Total Debt Securities705.7 49,987.3 2.85 364.1 57,355.3 1.28 
Loans and Leases(3)
1,220.0 42,163.5 5.83 448.8 40,149.0 2.25 
Other Interest-Earning Assets(4)
44.3 1,834.9 4.87 19.4 1,153.1 3.39 
Total Interest-Earning Assets3,216.7 135,031.8 4.80 926.1 144,807.8 1.29 
Cash and Due from Banks and Other Central Bank Deposits(5)
 1,819.3  — 2,304.4 — 
Other Noninterest-Earning Assets 10,122.7  — 10,979.1 — 
Total Assets$ $146,973.8  %$— $158,091.3 — %
Average Source of Funds
Deposits
Savings, Money Market and Other$310.8 $25,103.0 2.50 %$22.0 $31,644.6 0.14 %
Savings Certificates and Other Time53.6 2,700.0 4.00 2.2 817.1 0.54 
Non-U.S. Offices — Interest-Bearing833.7 62,227.7 2.70 (16.9)66,038.3 (0.05)
Total Interest-Bearing Deposits1,198.1 90,030.7 2.68 7.3 98,500.0 0.01 
Federal Funds Purchased127.7 5,371.4 4.79 2.8 464.0 1.22 
Securities Sold under Agreements to Repurchase(2)
389.5 407.8 192.58 6.3 426.1 2.97 
Other Borrowings(6)
291.5 11,730.6 5.01 11.5 3,940.2 0.59 
Senior Notes81.3 2,754.6 5.97 28.5 2,664.9 2.17 
Long-Term Debt59.6 2,068.0 5.81 12.2 1,112.3 2.20 
Total Interest-Related Funds2,147.7 112,363.1 3.85 68.6 107,107.5 0.13 
Interest Rate Spread  0.95 — — 1.16 
Demand and Other Noninterest-Bearing Deposits 18,843.3  — 35,421.8 — 
Other Noninterest-Bearing Liabilities 4,401.9  — 4,354.5 — 
Stockholders’ Equity 11,365.5  — 11,207.5 — 
Total Liabilities and Stockholders’ Equity$ $146,973.8  %$— $158,091.3 — %
Net Interest Income/Margin (FTE Adjusted)$1,069.0 $ 1.60 %$857.5 $— 1.19 %
Net Interest Income/Margin (Unadjusted)$1,042.7 $ 1.56 %$839.7 $— 1.17 %
(1)Interest-Bearing Due from and Deposits with Banks includes the interest-bearing component of Cash and Due from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
(2)Includes the impact of balance sheet netting under master netting arrangements of approximately $15.7 billion and $2.0 billion for the six months ended June 30, 2023 and 2022, respectively. Excluding the impact of netting for the six months ended June 30, 2023 and 2022, the average interest rate on Securities Purchased under Agreements to Resell would be approximately 4.92% and 0.55%, respectively. Excluding the impact of netting for the six months ended June 30, 2023 and 2022, the average interest rate on Securities Sold under Agreements to Repurchase would be approximately 4.88% and 0.53%, respectively. Northern Trust nets securities sold under repurchase agreements against those purchased under resale agreements when there is a legally enforceable master netting agreement.
(3)Average balances include nonaccrual loans.
(4)Other Interest-Earning Assets include certain community development investments, collateral deposits with certain securities depositories and clearing houses, Federal Home Loan Bank and Federal Reserve stock, and money market investments which are classified in Other Assets on the consolidated balance sheets.
(5)Cash and Due from Banks and Other Central Bank Deposits includes the noninterest-bearing component of Federal Reserve and Other Central Bank Deposits on the consolidated balance sheets.
(6)Other Borrowings primarily includes advances from the Federal Home Loan Bank of Chicago.
(7)Rate calculations are based on actual balances rather than the rounded amounts presented in the average consolidated balance sheets with analysis of Net Interest Income.

14

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)

TABLE 19: ANALYSIS OF NET INTEREST INCOME CHANGES DUE TO VOLUME AND RATE(1)
(INTEREST AND RATE ON A FULLY TAXABLE EQUIVALENT BASIS)SIX MONTHS ENDED JUNE 30, 2023/2022
CHANGE DUE TO
(In Millions)AVERAGE BALANCEAVERAGE
 RATE
NET (DECREASE) INCREASE
Increase (Decrease) in Net Interest Income (FTE)
Federal Reserve and Other Central Bank Deposits$(55.8)$754.9 $699.1 
Interest-Bearing Due from and Deposits with Banks0.2 51.0 51.2 
Federal Funds Sold 0.3 0.3 
Securities Purchased under Agreements to Resell2.4 399.9 402.3 
Debt Securities
Available For Sale(80.9)311.7 230.8 
Held To Maturity26.5 84.3 110.8 
Trading Account   
Total Debt Securities(54.4)396.0 341.6 
Loans and Leases19.3 751.9 771.2 
Other Interest-Earning Assets14.4 10.5 24.9 
Total Interest Income$(73.9)$2,364.5 $2,290.6 
Interest-Bearing Deposits
Savings, Money Market and Other$(10.4)$299.2 $288.8 
Savings Certificates and Other Time8.5 42.9 51.4 
Non-U.S. Offices - Interest-Bearing(6.0)856.6 850.6 
Total Interest-Bearing Deposits(7.9)1,198.7 1,190.8 
Federal Funds Purchased97.8 27.1 124.9 
Securities Sold under Agreements to Repurchase(0.3)383.5 383.2 
Other Borrowings58.5 221.5 280.0 
Senior Notes1.0 51.8 52.8 
Long-Term Debt16.3 31.1 47.4 
Total Interest Expense$165.4 $1,913.7 $2,079.1 
(Decrease) Increase in Net Interest Income (FTE)$(239.3)$450.8 $211.5 
(1)     Changes not due solely to average balance changes or rate changes are allocated proportionately to average balance and rate based on their relative absolute magnitudes.
Notes:    Net Interest Income (FTE Adjusted), a non-GAAP financial measure, includes adjustments to a fully taxable equivalent basis for loans and securities. The adjustments are based on a federal income tax rate of 21.0%, where the rate is adjusted for applicable state income taxes, net of related federal tax benefit. Total taxable equivalent interest adjustments amounted to $26.3 million and $17.8 million for the six months ended June 30, 2023 and 2022, respectively. A reconciliation of Net Interest Income and net interest margin on a GAAP basis to Net Interest Income and net interest margin on an FTE basis (each of which is a non-GAAP financial measure) is provided in “Reconciliation to Fully Taxable Equivalent” within this MD&A. Net interest margin is calculated by dividing annualized net interest income by average interest-earning assets.
Interest revenue on cash collateral positions is reported above within Interest-Bearing Due from and Deposits with Banks and within Loans and Leases. Interest expense on cash collateral positions is reported above within Non-U.S. Offices Interest-Bearing Deposits. Related cash collateral received from and deposited with derivative counterparties is recorded net of the associated derivative contract within Other Assets and Other Liabilities, respectively.
Net Interest Income, stated on an FTE basis, increased from the prior-year period, primarily due to higher average interest rates, partially offset by lower average earning assets. Average earning assets decreased from the prior-year period, primarily due to lower client deposits, partially offset by increased short-term borrowing activity.
The net interest margin on an FTE basis increased from the prior-year period, primarily due to higher average interest rates, partially offset by unfavorable balance sheet mix shift.
Federal Reserve and Other Central Bank Deposits averaged $35.5 billion and decreased $5.4 billion, or 13%, from $40.9 billion in the prior-year period. Average Securities were $50.0 billion and decreased $7.4 billion, or 13%, from $57.4 billion in the prior-year period and include certain community development investments, Federal Home Loan Bank stock, collateral deposits with certain securities depositories and clearing houses, money market investments, and Federal Reserve stock of $901.9 million, $375.9 million, $266.6 million, $76.6 million and $70.0 million, respectively, which are recorded in Other Assets on the consolidated balance sheets. Average taxable Securities were $47.0 billion in the current period and $54.8 billion in the prior-year period. Average nontaxable Securities, which represent securities that are primarily exempt from U.S. federal and state income taxes, were $3.0 billion in the current period and $2.6 billion in the prior-year period. Interest-Bearing Due from and Deposits with Banks averaged $4.4 billion in the current period and $4.3 billion in the prior-year period.
Loans and leases averaged $42.2 billion and increased $2.1 billion, or 5%, from $40.1 billion in the prior-year period, primarily reflecting higher levels of commercial and institutional, commercial real estate, residential real estate, and non-U.S. loans, partially offset by lower levels of private client loans. Commercial and institutional loans averaged $12.7 billion and increased $705.3 million, or 6%, from $12.0 billion for the prior-year period. Commercial real estate loans averaged $4.9 billion and
15

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)

increased $605.3 million, or 14%, from $4.3 billion for the prior-year period. Residential real estate loans averaged $6.4 billion and increased $135.6 million, or 2%, from $6.3 billion for the prior-year period. Non-U.S. loans averaged $3.5 billion and increased $97.6 million or 3% from $3.4 billion for the prior-year period. Private client loans averaged $13.8 billion and decreased $122.0 million, or 1%, from $14.0 billion for the prior-year period.
Northern Trust utilizes a diverse mix of funding sources. Average Interest-Bearing Deposits decreased $8.5 billion, or 9%, to an average of $90.0 billion in the current period from $98.5 billion in the prior-year period. Other Average Interest-Related Funds increased $13.7 billion, or 159%, to an average of $22.3 billion in the current period from $8.6 billion in the prior-year period. The balances within short-term borrowing classifications vary based on funding requirements and strategies, interest rate levels, changes in the volume of lower-cost deposit sources, and the availability of collateral to secure these borrowings.
Interest expense for Interest-Bearing Deposits in the current period was driven by higher interest rates. Average non-U.S. offices interest-bearing deposits comprised 69% and 67% of total average interest-bearing deposits for the six months ended June 30, 2023 and 2022, respectively.
Provision for Credit Losses
There was a $0.5 million release of credit reserves for the six months ended June 30, 2023, as compared to a $6.5 million provision in the prior-year period. The release of credit reserves was primarily due to a decrease in the collective basis reserve, driven by improvements in credit quality within the commercial and institutional portfolio, partially offset by growth in the size and duration of the CRE portfolio and expectations of higher economic stress in the CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics.
The provision in the prior-year period was primarily due to an increase in income before income taxesthe reserve evaluated on a collective basis and an increase in the reserve evaluated on an individual basis for two commercial borrowers, partially offset by net recoveries during the prior-year period. The increase in the collective basis reserve was primarily driven by market conditions at the time and a higher risk of recession as compared to the previous period, partially offset by improvements in credit quality mainly within the commercial real estate and commercial and institutional portfolios.
Net charge-offs in the current-year period totaled $2.9 million resulting from $4.8 million of charge-offs and $1.9 million of recoveries, compared to net recoveries of $8.7 million in the prior-year period resulting from $0.1 million of charge-offs and $8.8 million of recoveries.
For additional discussion of the allowance for credit losses, refer to the “Asset Quality” section in this MD&A.
Noninterest Expense
The components of Noninterest Expense are provided in the following table.
TABLE 20: NONINTEREST EXPENSE
SIX MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Compensation$1,199.7 $1,110.4 $89.3 %
Employee Benefits202.4 223.9 (21.5)(10)
Outside Services441.7 426.5 15.2 
Equipment and Software461.0 397.0 64.0 16 
Occupancy115.1 102.1 13.0 13 
Other Operating Expense197.6 169.6 28.0 17 
Total Noninterest Expense$2,617.5 $2,429.5 $188.0 %
Compensation expense, the largest component of Noninterest Expense increased compared to the prior-year quarter,period, primarily due to higher salary expense and an increase$36.7 million of $4.3 million related to an increase in the Illinois state deferred income tax reserve resulting from an increase in the Illinois income tax rate,severance-related charges, partially offset by Federal and State research tax creditslower incentives.
Employee Benefits expense decreased compared to the prior-year period, primarily due to a U.S. Qualified Plan pension settlement charge of $17.6$20.3 million recognized in the current quarterprior-year period.
Outside Services expense increased compared to the prior-year period, primarily reflecting higher technical services, partially offset by lower subcustodian expense and third-party advisory fees.
Equipment and Software expense increased compared to the prior-year period, primarily due to higher amortization as well as higher software costs driven by continued technology investments.
16

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Expense (continued)

Occupancy expense increased compared to the completionprior-year period, primarily due to a $9.8 million charge during the first quarter related to early lease exits.
Other Operating Expense increased compared to the prior-year period, primarily due to a $25.6 million charge related to the write-off of an investment in a recent studyclient capability.
Provision for Income Taxes
Income tax expense for the six months ended June 30, 2023 was $218.3 million, representing an effective tax rate of 24.7%, compared to $265.9 million for the Corporation’s technology spend between 2013six months ended June 30, 2022, representing an effective tax rate of 25.3%.
The effective tax rate decreased compared to the prior-year period primarily due to a decrease in pretax earnings and 2016.a higher level of tax benefits from tax-credit investments and tax-exempt income, partially offset by lower tax benefits from share-based compensation.
REPORTING SEGMENTSNoninterest Expense
The components of Noninterest Expense are provided in the following table.
TABLE 15: NONINTEREST EXPENSE
THREE MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Compensation$604.5 $546.5 $58.0 11 %
Employee Benefits101.4 119.6 (18.2)(15)
Outside Services230.9 213.1 17.8 
Equipment and Software229.3 203.5 25.8 13 
Occupancy53.8 51.0 2.8 
Other Operating Expense112.0 89.9 22.1 25 
Total Noninterest Expense$1,331.9 $1,223.6 $108.3 %
Compensation expense, the largest component of Noninterest Expense, increased compared to the prior-year quarter, primarily due to $36.7 million of severance-related charges and higher salaries, partially offset by lower incentives.
Employee Benefits expense decreased compared to the prior-year quarter primarily due to a U.S. Qualified Plan pension settlement charge of $20.3 million in the prior-year quarter.
Outside Services expense increased compared to the prior-year quarter primarily due to higher technical services.
Equipment and Software expense increased compared to the prior-year quarter, primarily due to higher amortization as well as higher software costs driven by continued technology investments.
10

SECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Expense (continued)
Other Operating Expense increased compared to the prior-year quarter primarily due to a $25.6 million charge related to the write-off of an investment in a client capability.
Provision for Income Taxes
Income tax expense for the three months ended June 30, 2023 was $108.9 million, representing an effective tax rate of 24.7%, compared to $144.4 million in the prior-year quarter, representing an effective tax rate of 26.7%.
The effective tax rate decreased compared to the prior-year quarter primarily due to a lower net tax impact from international operations.
SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS
Overview of Financial Results
Net Income per diluted common share decreased in the current period to $3.07 from $3.63 in the comparable prior-year period. Net Income decreased $119.1 million, or 15%, to $666.4 million in the current period from $785.5 million in the prior-year period. Annualized return on average common equity was 12.4% in the current period and 14.9% in the prior-year period. The annualized return on average assets was 0.91% in the current period compared to 1.00% in the prior-year period.
Revenue for the six months ended June 30, 2023 increased $14.3 million from $3.49 billion in the prior-year period to $3.50 billion in the current period.
Trust, Investment and Other Servicing Fees decreased $151.9 million, or 7%, from $2.31 billion in the prior-year period to $2.16 billion in the current period, primarily driven by unfavorable lagged markets, asset outflows, and unfavorable currency translation, partially offset by lower money market fund fee waivers.
Other Noninterest Income decreased $36.8 million, or 11% from $335.9 million in the prior-year period to $299.1 million in the current period, primarily driven by lower Foreign Exchange Trading Income, partially offset by higher Other Operating Income.
Net Interest Income increased $203.0 million, or 24%, to $1.04 billion in the current period from $839.7 million in the prior-year period, primarily due to higher average interest rates, partially offset by lower average earning assets.
There was a $0.5 million release of credit reserves in the current period, as compared to a $6.5 million Provision for Credit Losses in the prior-year period. The release of credit reserves was primarily due to a decrease in the collective basis reserve, driven by improvements in credit quality within the commercial and institutional portfolio, partially offset by growth in the size and duration of the CRE portfolio and expectations of higher economic stress in the CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics.
Noninterest Expense increased $188.0 million, or 8%, from $2.43 billion in the prior-year period to $2.62 billion in the current period, primarily attributable to higher Compensation and Equipment and Software expense.
The Provision for Income Taxes for the six months ended June 30, 2023 totaled $218.3 million, representing an effective tax rate of 24.7%. The Provision for Income Taxes for the six months ended June 30, 2022 totaled $265.9 million, representing an effective tax rate of 25.3%. The effective tax rate decreased compared to the prior-year period primarily due to a decrease in pretax earnings and a higher level of tax benefits from tax-credit investments and tax-exempt income, partially offset by lower tax benefits from share-based compensation.
11

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Trust, Investment and Other Servicing Fees
Northern Trust is organized around its two client-focused reporting segments: C&ISvoluntarily waived $4.3 million of money market fund fees for the six months ended June 30, 2023 as compared to $59.3 million for the six months ended June 30, 2022.
The components of Trust, Investment and Wealth Management. Asset management and related servicesOther Servicing Fees are provided to C&ISin the table below.
TABLE 16: TRUST, INVESTMENT AND OTHER SERVICING FEES
SIX MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Asset Servicing Trust, Investment and Other Servicing Fees
Custody and Fund Administration$841.0 $886.5 $(45.5)(5)%
Investment Management260.3 295.3 (35.0)(12)
Securities Lending40.6 40.4 0.2 
Other82.3 82.9 (0.6)(1)
Total Asset Servicing Trust, Investment and Other Servicing Fees$1,224.2 $1,305.1 $(80.9)(6)%
Wealth Management Trust, Investment and Other Servicing Fees
Central$329.6 $359.1 $(29.5)(8)%
East243.9 262.1 (18.2)(7)
West184.9 200.1 (15.2)(8)
Global Family Office177.3 185.4 (8.1)(4)
Total Wealth Management Trust, Investment and Other Servicing Fees$935.7 $1,006.7 $(71.0)(7)%
Total Consolidated Trust, Investment and Other Servicing Fees$2,159.9 $2,311.8 $(151.9)(7)%
Asset Servicing
Custody and Wealth Management clients primarily byFund Administration fees, the Asset Management business. The revenue and expenseslargest component of Asset Servicing fees, decreased primarily driven by unfavorable lagged markets. Investment Management fees decreased primarily due to asset outflows and certain other support functions are allocated fully to C&IS and Wealth Management. Income and expense associated with the wholesale funding activities and investment portfolios of the Corporation and its principal subsidiary, The Northern Trust Company (the Bank), as well as certain corporate-based expense, executive level compensation and nonrecurring items, are not allocated to C&IS and unfavorable lagged markets, partially offset by lower money market fund fee waivers.
Wealth Management
Fee income in the regions (Central, East and West) decreased primarily due to unfavorable lagged markets and product-related asset outflows, partially offset by lower money market fund fee waivers. Global Family Office fee income decreased primarily due to unfavorable lagged markets, partially offset by lower money market fund fee waivers.

12

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Other Noninterest Income

The components of other noninterest income are reported in Northern Trust’s third reporting segment, Treasury and Other,provided in the following pages.table.

TABLE 17: OTHER NONINTEREST INCOME
SIX MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Foreign Exchange Trading Income$103.1 $158.5 $(55.4)(35)%
Treasury Management Fees16.3 21.7 (5.4)(25)
Security Commissions and Trading Income70.8 69.0 1.8 
Other Operating Income102.0 86.7 15.3 18 
Investment Security Gains (Losses), net6.9 — 6.9 N/M
Total Other Noninterest Income$299.1 $335.9 $(36.8)(11)%
N/M - Not meaningful
Foreign Exchange Trading Income decreased from the prior-year period, primarily due to lower client volumes and an unfavorable impact from foreign exchange swap activity.
TreasuryManagementFees decreased from the prior-year period, primarily due to an increase in the earnings credit rate applied to client balances.
Other Operating Income increased from the prior-year period, primarily driven by higher income associated with a market value increase in supplemental compensation plans, increased income related to a bank-owned life insurance program, higher non-trading foreign exchange income, and increased income from banking and credit-related services fees, partially offset by higher expenses related to existing swap agreements related to Visa Inc. Class B common shares. Please refer to Note 15—Other Operating Income to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited) for further detail.
Investment Security Gains (Losses), net included a $6.9 million gain upon sale of certain available for sale debt securities in the current-year period. Please refer to Note 4—Securities to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited) for additional details related to the sale of available for sale debt securities.
10
13

Table of Contents
REPORTING SEGMENTSSIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)

Net Interest Income

The following tables reflectpresent an analysis of average daily balances and interest rate changes affecting Net Interest Income and an analysis of Net Interest Income changes.
TABLE 18: AVERAGE CONSOLIDATED BALANCE SHEETS WITH ANALYSIS OF NET INTEREST INCOME
(INTEREST AND RATE ON A FULLY TAXABLE EQUIVALENT BASIS)SIX MONTHS ENDED JUNE 30,
20232022
($ In Millions)INTERESTAVERAGE BALANCE
AVERAGE
RATE(7)
INTERESTAVERAGE BALANCE
AVERAGE
RATE(7)
Interest-Earning Assets
Federal Reserve and Other Central Bank Deposits$775.9 $35,504.9 4.41 %$76.8 $40,921.8 0.38 %
Interest-Bearing Due from and Deposits with Banks(1)
60.3 4,387.1 2.77 9.1 4,305.4 0.43 
Federal Funds Sold0.3 11.2 4.85 — 1.5 0.67 
Securities Purchased under Agreements to Resell(2)
410.2 1,142.9 72.38 7.9 921.7 1.74 
Debt Securities
Available for Sale489.4 24,769.8 3.98 258.6 36,581.4 1.43 
Held to Maturity216.3 25,216.8 1.72 105.5 20,773.3 1.02 
Trading Account 0.7 12.45 — 0.6 8.59 
Total Debt Securities705.7 49,987.3 2.85 364.1 57,355.3 1.28 
Loans and Leases(3)
1,220.0 42,163.5 5.83 448.8 40,149.0 2.25 
Other Interest-Earning Assets(4)
44.3 1,834.9 4.87 19.4 1,153.1 3.39 
Total Interest-Earning Assets3,216.7 135,031.8 4.80 926.1 144,807.8 1.29 
Cash and Due from Banks and Other Central Bank Deposits(5)
 1,819.3  — 2,304.4 — 
Other Noninterest-Earning Assets 10,122.7  — 10,979.1 — 
Total Assets$ $146,973.8  %$— $158,091.3 — %
Average Source of Funds
Deposits
Savings, Money Market and Other$310.8 $25,103.0 2.50 %$22.0 $31,644.6 0.14 %
Savings Certificates and Other Time53.6 2,700.0 4.00 2.2 817.1 0.54 
Non-U.S. Offices — Interest-Bearing833.7 62,227.7 2.70 (16.9)66,038.3 (0.05)
Total Interest-Bearing Deposits1,198.1 90,030.7 2.68 7.3 98,500.0 0.01 
Federal Funds Purchased127.7 5,371.4 4.79 2.8 464.0 1.22 
Securities Sold under Agreements to Repurchase(2)
389.5 407.8 192.58 6.3 426.1 2.97 
Other Borrowings(6)
291.5 11,730.6 5.01 11.5 3,940.2 0.59 
Senior Notes81.3 2,754.6 5.97 28.5 2,664.9 2.17 
Long-Term Debt59.6 2,068.0 5.81 12.2 1,112.3 2.20 
Total Interest-Related Funds2,147.7 112,363.1 3.85 68.6 107,107.5 0.13 
Interest Rate Spread  0.95 — — 1.16 
Demand and Other Noninterest-Bearing Deposits 18,843.3  — 35,421.8 — 
Other Noninterest-Bearing Liabilities 4,401.9  — 4,354.5 — 
Stockholders’ Equity 11,365.5  — 11,207.5 — 
Total Liabilities and Stockholders’ Equity$ $146,973.8  %$— $158,091.3 — %
Net Interest Income/Margin (FTE Adjusted)$1,069.0 $ 1.60 %$857.5 $— 1.19 %
Net Interest Income/Margin (Unadjusted)$1,042.7 $ 1.56 %$839.7 $— 1.17 %
(1)Interest-Bearing Due from and Deposits with Banks includes the earnings contributionsinterest-bearing component of Cash and average assetsDue from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
(2)Includes the impact of Northern Trust’s reporting segmentsbalance sheet netting under master netting arrangements of approximately $15.7 billion and $2.0 billion for the three-six months ended June 30, 2023 and nine- month periods2022, respectively. Excluding the impact of netting for the six months ended SeptemberJune 30, 20172023 and 2016. Reporting segment2022, the average interest rate on Securities Purchased under Agreements to Resell would be approximately 4.92% and 0.55%, respectively. Excluding the impact of netting for the six months ended June 30, 2023 and 2022, the average interest rate on Securities Sold under Agreements to Repurchase would be approximately 4.88% and 0.53%, respectively. Northern Trust nets securities sold under repurchase agreements against those purchased under resale agreements when there is a legally enforceable master netting agreement.
(3)Average balances include nonaccrual loans.
(4)Other Interest-Earning Assets include certain community development investments, collateral deposits with certain securities depositories and clearing houses, Federal Home Loan Bank and Federal Reserve stock, and money market investments which are classified in Other Assets on the consolidated balance sheets.
(5)Cash and Due from Banks and Other Central Bank Deposits includes the noninterest-bearing component of Federal Reserve and Other Central Bank Deposits on the consolidated balance sheets.
(6)Other Borrowings primarily includes advances from the Federal Home Loan Bank of Chicago.
(7)Rate calculations are based on actual balances rather than the rounded amounts presented in the average consolidated balance sheets with analysis of Net Interest Income.

14

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)

TABLE 19: ANALYSIS OF NET INTEREST INCOME CHANGES DUE TO VOLUME AND RATE(1)
(INTEREST AND RATE ON A FULLY TAXABLE EQUIVALENT BASIS)SIX MONTHS ENDED JUNE 30, 2023/2022
CHANGE DUE TO
(In Millions)AVERAGE BALANCEAVERAGE
 RATE
NET (DECREASE) INCREASE
Increase (Decrease) in Net Interest Income (FTE)
Federal Reserve and Other Central Bank Deposits$(55.8)$754.9 $699.1 
Interest-Bearing Due from and Deposits with Banks0.2 51.0 51.2 
Federal Funds Sold 0.3 0.3 
Securities Purchased under Agreements to Resell2.4 399.9 402.3 
Debt Securities
Available For Sale(80.9)311.7 230.8 
Held To Maturity26.5 84.3 110.8 
Trading Account   
Total Debt Securities(54.4)396.0 341.6 
Loans and Leases19.3 751.9 771.2 
Other Interest-Earning Assets14.4 10.5 24.9 
Total Interest Income$(73.9)$2,364.5 $2,290.6 
Interest-Bearing Deposits
Savings, Money Market and Other$(10.4)$299.2 $288.8 
Savings Certificates and Other Time8.5 42.9 51.4 
Non-U.S. Offices - Interest-Bearing(6.0)856.6 850.6 
Total Interest-Bearing Deposits(7.9)1,198.7 1,190.8 
Federal Funds Purchased97.8 27.1 124.9 
Securities Sold under Agreements to Repurchase(0.3)383.5 383.2 
Other Borrowings58.5 221.5 280.0 
Senior Notes1.0 51.8 52.8 
Long-Term Debt16.3 31.1 47.4 
Total Interest Expense$165.4 $1,913.7 $2,079.1 
(Decrease) Increase in Net Interest Income (FTE)$(239.3)$450.8 $211.5 
(1)     Changes not due solely to average balance changes or rate changes are allocated proportionately to average balance and rate based on their relative absolute magnitudes.
Notes:    Net Interest Income (FTE Adjusted), a non-GAAP financial information, presented on an internal management-reporting basis, is determined by accounting systems that are usedmeasure, includes adjustments to allocate revenue and expense related to each segment and incorporates processes for allocating assets, liabilities, equity and the applicable interest income and expense.
Table 13: Results of Reporting Segments
Three Months Ended September 30,
Corporate &
Institutional Services
 
Wealth
Management
 
Treasury and
Other
 
Total
Consolidated
($ In Millions)2017 2016 2017 2016 2017 2016 2017 2016
Noninterest Income               
Trust, Investment and Other Servicing Fees$501.1
 $450.8
 $366.8
 $337.5
 $
 $
 $867.9
 $788.3
Foreign Exchange Trading Income47.2
 55.2
 0.7
 0.9
 1.2
 (2.5) 49.1
 53.6
Other Noninterest Income43.8
 41.5
 25.2
 26.3
 5.0
 0.9
 74.0
 68.7
Net Interest Income*194.0
 138.2
 186.6
 164.1
 (14.4) 7.8
 366.2
 310.1
Revenue*786.1
 685.7
 579.3
 528.8
 (8.2) 6.2
 1,357.2
 1,220.7
Provision for Credit Losses0.8
 4.0
 (7.8) (7.0) 
 
 (7.0) (3.0)
Noninterest Expense542.1
 487.8
 348.8
 318.0
 44.7
 37.2
 935.6
 843.0
Income before Income Taxes*243.2
 193.9
 238.3
 217.8
 (52.9) (31.0) 428.6
 380.7
Provision for Income Taxes*78.4
 61.8
 90.3
 82.3
 (38.5) (21.0) 130.2
 123.1
Net Income$164.8
 $132.1
 $148.0
 $135.5
 $(14.4) $(10.0) $298.4
 $257.6
Percentage of Consolidated Net Income55% 51% 50% 53% (5)% (4)% 100% 100%
Average Assets$82,250.9
 $75,696.5
 $26,463.0
 $26,601.7
 $12,445.5
 $14,084.3
 $121,159.4
 $116,382.5
* Non-GAAP financial measures stated on a fully taxable equivalent basis (FTE).for loans and securities. The adjustments are based on a federal income tax rate of 21.0%, where the rate is adjusted for applicable state income taxes, net of related federal tax benefit. Total consolidated includes FTEtaxable equivalent interest adjustments of $12.0amounted to $26.3 million and $17.8 million for 2017the six months ended June 30, 2023 and $7.0 million for 2016.2022, respectively. A reconciliation of total consolidated revenue, net interest incomeNet Interest Income and net interest margin on a GAAP basis to revenue, net interest incomeNet Interest Income and net interest margin on an FTE basis (each of which is a non-GAAP financial measure) is provided on page 28.
Nine Months Ended September 30,Corporate &
Institutional Services
 Wealth
Management
 Treasury and
Other
 Total
Consolidated
($ In Millions)2017 2016 2017 2016 2017 2016 2017 2016
Noninterest Income               
Trust, Investment and Other Servicing Fees$1,451.1
 $1,331.1
 $1,073.2
 $982.6
 $
 $
 $2,524.3
 $2,313.7
Foreign Exchange Trading Income146.9
 169.1
 2.4
 7.0
 (2.2) 2.4
 147.1
 178.5
Other Noninterest Income132.4
 113.0
 77.4
 79.8
 20.4
 124.8
 230.2
 317.6
Net Interest Income*536.5
 417.8
 545.4
 482.8
 (2.9) 30.1
 1,079.0
 930.7
Revenue*2,266.9
 2,031.0
 1,698.4
 1,552.2
 15.3
 157.3
 3,980.6
 3,740.5
Provision for Credit Losses(1.6) 
 (13.4) (4.0) 
 
 (15.0) (4.0)
Noninterest Expense1,598.5
 1,519.9
 1,046.0
 975.2
 123.0
 101.7
 2,767.5
 2,596.8
Income before Income Taxes*670.0
 511.1
 665.8
 581.0
 (107.7) 55.6
 1,228.1
 1,147.7
Provision for Income Taxes*213.0
 158.0
 251.4
 219.1
 (78.7) 4.6
 385.7
 381.7
Net Income$457.0
 $353.1
 $414.4
 $361.9
 $(29.0) $51.0
 $842.4
 $766.0
Percentage of Consolidated Net Income54% 46% 49% 47% (3)% 7% 100% 100%
Average Assets$80,229.1
 $75,589.0
 $26,648.7
 $26,525.6
 $11,818.2
 $12,795.3
 $118,696.0
 $114,909.9
* Non-GAAP financial measures stated on a fully taxable equivalent basis (FTE). Total consolidated includes FTE adjustments of $29.8 million for 2017 and $20.1 million for 2016. A reconciliation of total consolidated revenue,in “Reconciliation to Fully Taxable Equivalent” within this MD&A. Net interest margin is calculated by dividing annualized net interest income and net interest margin on a GAAP basis to revenue, net interest income and net interest margin on an FTE basis (each of which is a non-GAAP financial measure) is provided on page 28.

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REPORTING SEGMENTS (continued)
Corporate & Institutional Services

C&IS net income totaled $164.8 million in the current quarter compared to $132.1 million in the prior-year quarter, an increase of $32.7 million, or 25%. Noninterest income was $592.1 million in the current quarter, up $44.6 million, or 8%, from $547.5 million in the prior-year quarter, reflecting higher trust, investment and other servicing fees, partially offset by lower foreign exchange trading income. The following table provides a summary of C&IS trust, investment and other servicing fees.
Table 14: C&IS Trust, Investment and Other Servicing Fees
 Three Months Ended September 30,    
($ In Millions)2017 2016 Change
Custody and Fund Administration$338.1
 $299.4
 $38.7
 13 %
Investment Management104.3
 94.4
 9.9
 10
Securities Lending22.8
 23.1
 (0.3) (1)
Other35.9
 33.9
 2.0
 6
Total C&IS Trust, Investment and Other Servicing Fees$501.1
 $450.8
 $50.3
 11 %
Custody and fund administration fees, the largest component of C&IS fees, are driven primarily by values of client AUC/A, transaction volumes and number of accounts. The asset values used to calculate these fees vary depending on the individual fee arrangements negotiated with each client. Custody fees related to asset values are client specific and are priced based on quarter-end or month-end values, values at the beginning of each quarter or average values for a month or quarter. The fund administration fees that are asset-value-related are priced using month-end, quarter-end, or average daily balances. Investment management fees, which are based generally on client assets under management, are based primarily on market values throughout a period.interest-earning assets.
Custody and fund administration fees increased $38.7 million, or 13%, from the prior-year quarter, primarily due to new business, favorable equity markets, and the favorable impact of movements in foreign exchange rates. Investment management fees increased $9.9 million, or 10%, primarily due to higher market performance and new business. Securities lending fees were relatively unchanged, as lower spreads and fee splits were partially offset by increased loan volumes in the current quarter. Other fees increased 6%, primarily due to new business.
Foreign exchange trading income totaled $47.2 million in the current quarter, a decrease of $8.0 million, or 14%, from $55.2 million in the prior-year quarter. The decrease generally reflected lower currency volatility as compared to the prior-year quarter.
Other noninterest income in C&IS totaled $43.8 million in the current quarter, up 6%, from $41.5 million in the prior-year quarter, primarily due to impairment charges recorded in the prior-year quarter associated with the loss on sales related to a non-strategic loan and lease portfolio.
Net interest income stated on an FTE basis was $194.0 million in the current quarter, up $55.8 million, or 40%, from $138.2 million in the prior-year quarter. The increase in net interest income was primarily attributable to an increase in the net interest margin and higher levels of earning assets. The net interest margin increased to 1.01% from 0.79% in the prior-year quarter, primarily reflecting higher short-term interest rates, partially offset by a balance sheet mix shift. The average earning assets totaled $76.4 billion, up from $69.2 billion in the prior-year quarter. The earning assets in C&IS consisted primarily of intercompany assets and loans and leases. Funding sources were primarily comprised of non-U.S. custody-related interest-bearing deposits, which averaged $54.1 billion in the current quarter, up from $45.2 billion in the prior-year quarter.
The provision for credit losses was a provision of $0.8 million in the current quarter, compared with a provision of $4.0 millionin the prior-year quarter. The current quarter provision reflected an increase in the inherent reserve requirement. The prior-year quarter provision reflected a specific reserve requirement, partially offset by improvement in credit quality.
Total C&IS noninterest expense, which includes the direct expense of the reporting segment, indirect expense allocations for product and operating support and indirect expense allocations for certain corporate support services, totaled $542.1 million in the current quarter, up $54.3 million, or 11%, from $487.8 million in the prior-year quarter, reflecting severance and related charges of $2.0 million, as well as higher indirect expense allocations, compensation expenses, and outside services expenses.

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REPORTING SEGMENTS (continued)
Wealth Management

Wealth Management net income was $148.0 million in the current quarter, up $12.5 million, or 9%, from $135.5 million in the prior-year quarter. Noninterest income was $392.7 million, up $28.0 million, or 8%, from $364.7 million in the prior-year quarter, primarily reflecting higher trust, investment and other servicing fees. Trust, investment and other servicing fees in Wealth Management totaled $366.8 million in the current quarter, increasing $29.3 million, or 9%, from $337.5 million in the prior-year quarter. The following table provides a summary of Wealth Management trust, investment and other servicing fees.
Table 15: Wealth Management Trust, Investment and Other Servicing Fees
 Three Months Ended September 30,    
($ In Millions)2017 2016 Change
Central$145.4
 $135.6
 $9.8
 7%
East90.2
 85.1
 5.1
 6
West73.7
 68.0
 5.7
 8
Global Family Office57.5
 48.8
 8.7
 18
Total Wealth Management Trust, Investment and Other Servicing Fees$366.8
 $337.5
 $29.3
 9%
Wealth Management fee income is calculated primarily based on market values. The increase in Wealth Management fees across the regions was primarily attributable to favorable equity markets and new business. The 18% increase in Global Family Office fees was primarily attributable to new business and favorable equity markets.
Other noninterest income of $25.2 million in the current quarter was down slightly from $26.3 million in the prior-year quarter, primarily reflecting a decrease in various other operating income categories.
Net interest income stated on an FTE basis was $186.6 million in the current quarter, up $22.5 million, or 14%, from $164.1 million in the prior-year quarter, primarily reflecting an increase in the net interest margin. The net interest margin increased to 2.82% from 2.47% in the prior-year quarter. Average earning assets decreased $174.0 million to $26.2 billion from the prior-year quarter’s $26.4 billion. Earning assets and funding sources were primarily comprised of loans and domestic retail interest-bearing deposits, respectively.
The provision for credit losses was a credit of $7.8 million in the current quarter, compared with a credit provision of $7.0 million in the prior-year quarter. The current quarter provision reflected reductions in undrawn loan commitments and standby letters of credit as well as improved credit quality resulting in a reduction in the inherent allowance. The prior-year quarter provision reflected improvement in credit quality.
Total noninterest expense, which includes the direct expense of the reporting segment, indirect expense allocations for product and operating support and indirect expense allocations for certain corporate support services, totaled $348.8 million in the current quarter, compared to $318.0 million in the prior-year quarter, an increase of $30.8 million, or 10%, reflecting current quarter severance and related charges of $5.0 million, as well as higher indirect expense allocations, compensation expense, and other operating expenses.
Treasury and Other
Treasury and Other includes income and expense associated with the wholesale funding activities and the investment portfolios of the Corporation and the Bank, and certain corporate-based expenses, executive-level compensation and nonrecurring items not allocated to C&IS and Wealth Management.
Treasury and Other noninterest income increased $7.8 million, from negative $1.6 million in the prior-year quarter to $6.2 million in the current quarter, primarily due to higher foreign exchange trading income and other operating income.
Net interest income decreased $22.2 million, from $7.8 million in the prior-year quarter to net interest expense of $14.4 million in the current quarter, primarily due to a decline in the net interest margin driven by higher short-term interest rates. Average earning assets decreased $2.4 billion to $9.9 billion from $12.3 billion in the prior-year quarter.
Noninterest expense totaled $44.7 million in the current quarter, up $7.5 million, or 20%, from $37.2 million in the prior-year quarter, primarily reflecting higher general overhead costs, including compensation expense, equipment and software expense,

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REPORTING SEGMENTS (continued)
Treasury and Other (continued)

and business promotion, advertising, and marketing expense, partially offset by higher indirect expense allocations to C&IS and Wealth Management as compared to the prior-year quarter.
The provision for income taxes was a benefit of $38.5 million in the current quarter compared to a $21.0 million benefit in the prior-year quarter, primarily due to Federal and State research tax credits of $17.6 million recognized in the current quarter due to the completion of a recent study of the Corporation’s technology spend between 2013 and 2016, partially offset by an increase of $4.3 million related to an increase in the Illinois state deferred income tax reserve resulting from an increase in the Illinois income tax rate and an decrease in income before income taxes compared to the prior quarter.
NINE-MONTH CONSOLIDATED RESULTS OF OPERATIONS
Overview
Net income per diluted common share was $3.41 for the nine months ended September 30, 2017, and $3.21 in the comparable prior-year period. Net income totaled $842.4 million, up $76.4 million, or 10%, compared to $766.0 million in the prior-year period. The performance in the current period produced an annualized return on average common equity of 11.8%, compared to 11.9% in the prior-year period. The annualized return on average assets was 0.95% in the current period compared to 0.89% in the prior-year period.
Revenue for the nine months ended September 30, 2017 totaled $3.95 billion, up $230.4 million, or 6%, as compared to $3.72 billion in the prior-year period.
Noninterest income was $2.90 billion, up $91.8 million, or 3%, from $2.81 billion in the prior-year period, primarily driven by increased trust, investment, and other servicing fees, partially offset by lower other operating income and foreign exchange trading income. The prior-year period included the sale of 1.1 million Visa Inc. Class B common shares, net of the valuation adjustment to existing swap agreements, totaling $118.2 million, partially offset by impairment charges and the loss on sale related to the decision to exit a portion of a non-strategic loan and lease portfolio of $14.1 million and impairment charges related to the residual value of certain aircraft of $4.8 million.

Net interest income totaled $1.05 billion, up $138.6 million, or 15%, as compared to $910.6 million in the prior-year period, due to a higher net interest margin and an increase in earning assets. Additionally, the prior-year period included a pre-tax charge of $2.7 million related to the residual value of certain aircraft and rail cars.

The provision for credit losses was a credit of $15.0 million in the current period, as compared to a credit of $4.0 million in the prior-year period.

Noninterest expense totaled $2.77 billion in the current period, up $170.7 million, or 7%, from $2.60 billion in the prior-year period, primarily attributable to higher compensation, equipment and software, outside services, partially offset by lower other operating expense. The current period included expense charges of $29.8 million associated with severance and related activities. The prior-year period included a pre-tax charge in connection with an agreement to settle certain securities lending litigation of $46.5 million, charges related to contractual modifications associated with existing C&IS clients of $18.6 million, and severance, other personnel and related charges of $17.5 million.

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NINE-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Income


The components of noninterest income are provided below.
Table 16: Nine Months Ended September 30 Noninterest Income
Noninterest IncomeNine Months Ended September 30,    
($ In Millions)2017 2016 Change
Trust, Investment and Other Servicing Fees$2,524.3
 $2,313.7
 $210.6
 9 %
Foreign Exchange Trading Income147.1
 178.5
 (31.4) (18)
Treasury Management Fees42.8
 47.2
 (4.4) (9)
Security Commissions and Trading Income65.8
 59.9
 5.9
 10
Other Operating Income122.7
 212.4
 (89.7) (42)
Investment Security Losses, net(1.1) (1.9) 0.8
 (41)
Total Noninterest Income$2,901.6
 $2,809.8
 $91.8
 3 %
As illustrated in the following table, trust, investment and other servicing fees from C&IS increased $120.0 million, or 9%, totaling $1.45 billion, compared to $1.33 billion a year ago.
Table 17: Nine Months Ended September 30 C&IS Trust, Investment and Other Servicing Fees
C&IS Trust, Investment and Other Servicing FeesNine Months Ended September 30,    
($ In Millions)2017 2016 Change
Custody and Fund Administration$973.1
 $879.1
 $94.0
 11 %
Investment Management297.1
 277.7
 19.4
 7
Securities Lending71.2
 72.5
 (1.3) (2)
Other109.7
 101.8
 7.9
 8
Total$1,451.1
 $1,331.1
 $120.0
 9 %
Custody and fund administration fees, the largest component of C&IS fees, increased 11%, primarily driven by new business and favorable equity markets, partially offset by the unfavorable impact of movements in foreign exchange rates. C&IS investment management fees increased 7%, primarily due to the favorable impact of equity markets and lower money market mutual fund fee waivers. There were no C&IS money market mutual fund fee waivers in the current period compared to $1.9 million in the prior-year period. Other fees in C&IS increased 8%, primarily due to new business.
As illustrated in the following table, trust, investment and other servicing fees from Wealth Management totaled $1.07 billion, up $90.6 million, or 9%, from $982.6 million a year ago.
Table 18: Nine Months Ended September 30 Wealth Management Trust, Investment and Other Servicing Fees
 Nine Months Ended September 30,    
($ In Millions)2017 2016 Change
Wealth Management Trust, Investment and Other Servicing Fees       
Central$425.9
 $390.2
 $35.7
 9%
East263.7
 250.6
 13.1
 5
West216.7
 199.4
 17.3
 9
Global Family Office166.9
 142.4
 24.5
 17
Total$1,073.2
 $982.6
 $90.6
 9%
The increase in Wealth Management fees across the regions was primarily attributable to favorable equity markets, new business, and lower money market mutual fund fee waivers in the current period. The 17% increase in Global Family Office fees was primarily attributable to new business and favorable equity markets. Money market mutual fund fee waivers in Wealth Management totaled $0.7 million in the current period compared with $6.2 million in the prior-year period.

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NINE-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Income (continued)


Foreign exchange trading income decreased $31.4 million, or 18%, and totaled $147.1 million compared with $178.5 million in the prior-year period. The decrease was attributable to lower currency volatility compared to the prior-year period.
Other operating income decreased $89.7 million, or 42%, to $122.7 million compared with $212.4 million in the prior-year period. The components of other operating income are provided below.
Table 19: Nine Months Ended September 30 Other Operating Income
Other Operating IncomeNine Months Ended September 30,    
($ In Millions)2017 2016 Change
Loan Service Fees$38.4
 $42.2
 $(3.8) (9)%
Banking Service Fees37.5
 38.8
 (1.3) (3)%
Other Income46.8
 131.4
 (84.6) (64)
Total Other Operating Income$122.7
 $212.4
 $(89.7) (42)%
The prior-year period other income included the gain on the sale of 1.1 million Visa Inc. Class B common shares, net of the valuation adjustment to existing swap agreements, totaling $118.2 million, offset by impairment charges and the loss on sale related to the decision to exit a portion of a non-strategic loan and lease portfolio, as well as impairment charges related to the residual value of certain aircraft and rail cars of $18.9 million. The decrease in other income due to these prior-year items was partially offset by net gains on hedging activity and increases in various other income categories.

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NINE-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income

The following table presents an analysis of average balances and interest rate changes affecting net interest income.
Table 20: Nine Months Ended September 30 Average Consolidated Balance Sheets with Analysis of Net Interest Income
 NORTHERN TRUST CORPORATION
(Interest and Rate on a Fully Taxable Equivalent Basis)
Nine Months Ended September 30,
2017 2016
($ In Millions)Interest 
Average
Balance
 
Rate (5)
 Interest 
Average
Balance
 
Rate (5)
Average Earning Assets           
            
Federal Reserve and Other Central Bank Deposits$108.4
 $23,198.9
 0.62% $71.4
 $20,553.5
 0.46%
Interest-Bearing Due from and Deposits with Banks (1)
45.0
 7,163.0
 0.84
 49.4
 9,036.0
 0.73
Federal Funds Sold and Securities Purchased under Agreements to Resell

21.7
 2,005.4
 1.45
 12.4
 1,707.0
 0.97
Securities           
U.S. Government67.1
 6,542.2
 1.37
 56.0
 6,890.8
 1.08
Obligations of States and Political Subdivisions10.0
 920.8
 1.45
 7.5
 465.6
 2.16
Government Sponsored Agency196.0
 17,887.4
 1.47
 123.0
 17,232.9
 0.95
Other (2)
178.0
 19,066.8
 1.25
 136.0
 16,358.8
 1.11
Total Securities451.1
 44,417.2
 1.36
 322.5
 40,948.1
 1.05
Loans and Leases (3)
684.9
 33,676.2
 2.72
 610.3
 34,119.1
 2.39
Total Earning Assets1,311.1
 110,460.7
 1.59
 1,066.0
 106,363.7
 1.34
Allowance for Credit Losses Assigned to Loans and Leases
 (159.4) 
 
 (193.9) 
Cash and Due from Banks and Other Central Bank Deposits (4)

 2,496.9
 
 
 2,072.9
 
Buildings and Equipment
 466.1
 
 
 442.4
 
Client Security Settlement Receivables
 858.9
 
 
 1,178.2
 
Goodwill
 521.7
 
 
 526.6
 
Other Assets
 4,051.1
 
 
 4,520.0
 
Total Assets$
 $118,696.0
 % $
 $114,909.9
 %
Average Source of Funds           
Deposits           
Savings, Money Market and Other$15.2
 $15,433.9
 0.13% $8.7
 $15,144.3
 0.08%
Savings Certificates and Other Time7.0
 1,301.8
 0.72
 5.9
 1,438.4
 0.55
Non-U.S. Offices — Interest-Bearing101.5
 55,892.8
 0.24
 48.8
 50,452.8
 0.13
Total Interest-Bearing Deposits123.7
 72,628.5
 0.23
 63.4
 67,035.5
 0.13
Short-Term Borrowings41.5
 6,117.7
 0.91
 14.9
 6,249.3
 0.32
Senior Notes35.0
 1,496.9
 3.14
 35.2
 1,496.6
 3.14
Long-Term Debt28.3
 1,512.4
 2.50
 19.3
 1,403.1
 1.83
Floating Rate Capital Debt3.6
 277.4
 1.71
 2.5
 277.4
 1.20
Total Interest-Related Funds232.1
 82,032.9
 0.38
 135.3
 76,461.9
 0.24
Interest Rate Spread
 
 1.21
 
 
 1.10
Demand and Other Noninterest-Bearing Deposits
 23,641.1
 
 
 26,252.4
 
Other Liabilities
 3,085.2
 
 
 3,289.6
 
Stockholders’ Equity
 9,936.8
 
 
 8,906.0
 
Total Liabilities and Stockholders’ Equity$
 $118,696.0
 % $
 $114,909.9
 %
Net Interest Income/Margin (FTE Adjusted)$1,079.0
 $
 1.31% $930.7
 $
 1.17%
Net Interest Income/Margin (Unadjusted)$1,049.2
 $
 1.27% $910.6
 $
 1.14%

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NINE-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)


ANALYSIS OF NET INTEREST INCOME CHANGES
DUE TO VOLUME AND RATE
     
 Nine Months Ended September 30, 2017/2016
 Change Due To
(In Millions)
Average
Balance
 Rate Total
Earning Assets (FTE)$34.9
 $210.2
 $245.1
Interest-Related Funds11.3
 85.5
 96.8
Net Interest Income (FTE)$23.6
 $124.7
 $148.3
(1)Interest-Bearing Due from and Deposits with Banks includes the interest-bearing component of Cash and Due from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
(2)Other securities include certain community development investments and Federal Home Loan Bank and Federal Reserve stock, which are classified in other assets in the consolidated balance sheets as of September 30, 2017 and 2016.
(3)Average balances include nonaccrual loans. Lease financing receivable balances are reduced by deferred income.
(4)Cash and Due from Banks and Other Central Bank Deposits includes the non-interest-bearing component of Federal Reserve and Other Central Bank Deposits as presented on the consolidated balance sheets.
(5)Rate calculations are based on actual balances rather than the rounded amounts presented in the Average Consolidated Balance Sheets with Analysis of Net Interest Income.

Notes:Net Interest Income (FTE Adjusted), a non-generally accepted accounting principle (GAAP) financial measure, includes adjustments to a fully taxable equivalent basis for loans and securities. Such adjustments are based on a blended federal and state tax rate of 38.1% and 37.8% for the nine months ended September 30, 2017 and 2016, respectively. Total taxable equivalent interest adjustments amounted to $29.8 million and $20.1 million for the nine months ended September 30, 2017 and 2016, respectively. A reconciliation of net interest income and net interest margin on a GAAP basis to net interest income and net interest margin on an FTE basis (each of which is a non-GAAP financial measure) is provided on page 28.
Interest revenue on cash collateral positions is reported above within interest-bearing depositsInterest-Bearing Due from and Deposits with banksBanks and within loansLoans and leases.Leases. Interest expense on cash collateral positions is reported above within non-U.S. offices interest-bearing deposits.Non-U.S. Offices Interest-Bearing Deposits. Related cash collateral received from and deposited with derivative counterparties is recorded net of the associated derivative contract within other assetsOther Assets and other liabilities,Other Liabilities, respectively.
Net interest income,Interest Income, stated on an FTE basis, totaled $1.08 billion, an increase of $148.3 million, or 16%,increased from $930.7 million reported in the prior-year period. The increase is the result of higher net interest margin and an increase in earning assets. Additionally, the prior-year period included a charge of $2.7 million related to the residual value of certain aircraft and rail cars. Average earning assets were $110.5 billion, up $4.1 billion, or 4%, from $106.4 billion in the prior-year period, primarily attributabledue to higher levels of securities and short-termaverage interest bearingrates, partially offset by lower average earning assets. Average earning assets decreased from the prior-year period, primarily due to lower client deposits, partially offset by a reduction in loans and leases. increased short-term borrowing activity.
The net interest margin on an FTE basis increased from the prior-year period, primarily due to 1.31%higher average interest rates, partially offset by unfavorable balance sheet mix shift.
Federal Reserve and Other Central Bank Deposits averaged $35.5 billion and decreased $5.4 billion, or 13%, from 1.17%$40.9 billion in the prior-year period. Average Securities were $50.0 billion and decreased $7.4 billion, or 13%, from $57.4 billion in the prior-year period and include certain community development investments, Federal Home Loan Bank stock, collateral deposits with certain securities depositories and clearing houses, money market investments, and Federal Reserve stock of $901.9 million, $375.9 million, $266.6 million, $76.6 million and $70.0 million, respectively, which are recorded in Other Assets on the consolidated balance sheets. Average taxable Securities were $47.0 billion in the current period and $54.8 billion in the prior-year period. Average nontaxable Securities, which represent securities that are primarily exempt from U.S. federal and state income taxes, were $3.0 billion in the current period and $2.6 billion in the prior-year period. Interest-Bearing Due from and Deposits with Banks averaged $4.4 billion in the current period and $4.3 billion in the prior-year period.
Loans and leases averaged $42.2 billion and increased $2.1 billion, or 5%, from $40.1 billion in the prior-year period, primarily reflecting higher levels of commercial and institutional, commercial real estate, residential real estate, and non-U.S. loans, partially offset by lower levels of private client loans. Commercial and institutional loans averaged $12.7 billion and increased $705.3 million, or 6%, from $12.0 billion for the prior-year period. Commercial real estate loans averaged $4.9 billion and
15

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)

increased $605.3 million, or 14%, from $4.3 billion for the prior-year period. Residential real estate loans averaged $6.4 billion and increased $135.6 million, or 2%, from $6.3 billion for the prior-year period. Non-U.S. loans averaged $3.5 billion and increased $97.6 million or 3% from $3.4 billion for the prior-year period. Private client loans averaged $13.8 billion and decreased $122.0 million, or 1%, from $14.0 billion for the prior-year period.
Northern Trust utilizes a diverse mix of funding sources. Average Interest-Bearing Deposits decreased $8.5 billion, or 9%, to an average of $90.0 billion in the current period from $98.5 billion in the prior-year period. Other Average Interest-Related Funds increased $13.7 billion, or 159%, to an average of $22.3 billion in the current period from $8.6 billion in the prior-year period. The balances within short-term borrowing classifications vary based on funding requirements and strategies, interest rate levels, changes in the volume of lower-cost deposit sources, and the availability of collateral to secure these borrowings.
Interest expense for Interest-Bearing Deposits in the current period was driven by higher interest rates. Average non-U.S. offices interest-bearing deposits comprised 69% and 67% of total average interest-bearing deposits for the six months ended June 30, 2023 and 2022, respectively.
Provision for Credit Losses
The provision for credit lossesThere was a $0.5 million release of credit of $15.0 million inreserves for the current-year period,six months ended June 30, 2023, as compared to a $6.5 million provision in the prior-year period. The release of credit reserves was primarily due to a decrease in the collective basis reserve, driven by improvements in credit quality within the commercial and institutional portfolio, partially offset by growth in the size and duration of $4.0 millionthe CRE portfolio and expectations of higher economic stress in the CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics.
The provision in the prior-year period was primarily due to an increase in the reserve evaluated on a collective basis and an increase in the reserve evaluated on an individual basis for two commercial borrowers, partially offset by net recoveries during the prior-year period. The credit provisionincrease in the current periodcollective basis reserve was primarily driven by improvedmarket conditions at the time and a higher risk of recession as compared to the previous period, partially offset by improvements in credit quality as well as reductions in outstanding loansmainly within the commercial real estate and undrawn loan commitmentscommercial and standby letters of credit that resulted in a reduction in the inherent allowance. institutional portfolios.
Net charge-offs in the current-year period totaled $3.6$2.9 million resulting from $13.2$4.8 million of charge-offs and $9.6$1.9 million of recoveries, compared to net charge-offsrecoveries of $4.3$8.7 million in the prior-year period resulting from $13.2$0.1 million of charge-offs and $8.9$8.8 million of recoveries. Residential real estate loans continued to reflect weakness relative to the overall portfolio, accounting for 88% and 71% of total nonperforming loans and leases at September 30, 2017 and 2016, respectively. Loan balances within the residential real estate, commercial real estate, and non-U.S. portfolios decreased in the current period, while loan balances in the private client portfolio increased.
For a fulleradditional discussion of the consolidated allowance and provision for credit losses, refer to the “Asset Quality” section beginning on page 22.in this MD&A.

Noninterest Expense
The components of Noninterest Expense are provided in the following table.
TABLE 20: NONINTEREST EXPENSE
SIX MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Compensation$1,199.7 $1,110.4 $89.3 %
Employee Benefits202.4 223.9 (21.5)(10)
Outside Services441.7 426.5 15.2 
Equipment and Software461.0 397.0 64.0 16 
Occupancy115.1 102.1 13.0 13 
Other Operating Expense197.6 169.6 28.0 17 
Total Noninterest Expense$2,617.5 $2,429.5 $188.0 %
Compensation expense, the largest component of Noninterest Expense increased compared to the prior-year period, primarily due to higher salary expense and $36.7 million of severance-related charges, partially offset by lower incentives.
Employee Benefits expense decreased compared to the prior-year period, primarily due to a U.S. Qualified Plan pension settlement charge of $20.3 million in the prior-year period.
Outside Services expense increased compared to the prior-year period, primarily reflecting higher technical services, partially offset by lower subcustodian expense and third-party advisory fees.
Equipment and Software expense increased compared to the prior-year period, primarily due to higher amortization as well as higher software costs driven by continued technology investments.
18
16

Table of Contents
NINE-MONTHSIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Expense (continued)

Occupancy expense increased compared to the prior-year period, primarily due to a $9.8 million charge during the first quarter related to early lease exits.
Other Operating Expense increased compared to the prior-year period, primarily due to a $25.6 million charge related to the write-off of an investment in a client capability.
Provision for Income Taxes
Income tax expense for the six months ended June 30, 2023 was $218.3 million, representing an effective tax rate of 24.7%, compared to $265.9 million for the six months ended June 30, 2022, representing an effective tax rate of 25.3%.
The effective tax rate decreased compared to the prior-year period primarily due to a decrease in pretax earnings and a higher level of tax benefits from tax-credit investments and tax-exempt income, partially offset by lower tax benefits from share-based compensation.
Noninterest Expense


Noninterest expense totaled $2.77 billion for the current period, up $170.7 million, or 7%, compared to $2.60 billion in the prior-year period. The components of noninterest expenseNoninterest Expense are provided below.in the following table.
Table 21: Nine Months Ended September 30 Noninterest ExpenseTABLE 15: NONINTEREST EXPENSE
THREE MONTHS ENDED JUNE 30,
Noninterest ExpenseNine Months Ended September 30,    
($ In Millions)2017 2016 Change($ In Millions)20232022CHANGE
Compensation$1,276.6
 $1,150.4
 $126.2
 11 %Compensation$604.5 $546.5 $58.0 11 %
Employee Benefits228.2
 216.0
 12.2
 6
Employee Benefits101.4 119.6 (18.2)(15)
Outside Services492.8
 466.5
 26.3
 6
Outside Services230.9 213.1 17.8 
Equipment and Software391.5
 346.7
 44.8
 13
Equipment and Software229.3 203.5 25.8 13 
Occupancy139.0
 130.4
 8.6
 7
Occupancy53.8 51.0 2.8 
Other Operating Expense239.4
 286.8
 (47.4) (16)Other Operating Expense112.0 89.9 22.1 25 
Total Noninterest Expense$2,767.5
 $2,596.8
 $170.7
 7 %Total Noninterest Expense$1,331.9 $1,223.6 $108.3 %
Compensation expense, the largest component of noninterest expense, totaled $1.28 billion, up $126.2 million, or 11%, from $1.15 billion inNoninterest Expense, increased compared to the prior-year reflecting severancequarter, primarily due to $36.7 million of severance-related charges and related charges of $25.5 million in the current period,higher salaries, partially offset by lower incentives.
Employee Benefits expense decreased compared to $13.0the prior-year quarter primarily due to a U.S. Qualified Plan pension settlement charge of $20.3 million in the prior-year period, as well as increasesquarter.
Outside Services expense increased compared to the prior-year quarter primarily due to higher salarytechnical services.
Equipment and Software expense driven by base pay adjustments and staff growth, higher long-term performance-based incentive compensation, and higher cash-based incentive accruals.
Employee benefits expense of $228.2 million was up $12.2 million, or 6%, from $216.0 million inincreased compared to the prior-year period, reflecting severance and related charges of $3.1 million in the current period, comparedquarter, primarily due to severance and related charges of $1.5 million in the prior-year period,higher amortization as well as higher payroll taxes and retirement plan expenses.
Outside services expense equaled $492.8 million, up $26.3 million, or 6%, from $466.5 million in the prior-year period, reflecting outplacement charges associated with severance activity of $1.2 million in the current period, compared to outplacement charges associated with severance activity of $0.7 million in the prior period, as well as increases in technical services and sub-custodian expense.
Equipment and software expense totaled $391.5 million, up $44.8 million, or 13%, from $346.7 million in the prior-year period, reflecting increased software amortization, software support, and computer maintenance and rental costs.
Occupancy expense equaled $139.0 million, up $8.6 million, or 7%, from $130.4 million in the prior-year period, reflecting higher rent expense as well as accelerated depreciation related to a previously announced facility exit.
Other operating expense totaled $239.4 million, down $47.4 million, or 16%, from $286.8 million in the prior-year period. The components of other operating expense are provided below.
Table 22: Nine Months Ended September 30 Other Operating Expensecosts driven by continued technology investments.
10
Other Operating ExpenseNine Months Ended September 30,    
($ In Millions)2017 2016 Change
Business Promotion$72.5
 $67.2
 $5.3
 8 %
Staff Related31.6
 33.3
 (1.7) (5)
FDIC Insurance Premiums26.1
 22.8
 3.3
 15
Other Intangibles Amortization7.0
 6.3
 0.7
 12
Other Expenses102.2
 157.2
 (55.0) (35)
Total Other Operating Expense$239.4
 $286.8
 $(47.4) (16)%
Other operating expense in the prior-year period included a pre-tax charge in connection with an agreement to settle certain securities lending litigation of $46.5 million, charges related to contractual modifications associated with existing C&IS clients of $18.6 million, other personnel charges of $2.3 million. The decrease in other expenses due to these prior-year charges was partially offset

19

NINE-MONTHSECOND QUARTER CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Expense (continued)


byOther Operating Expense increased expensescompared to the prior-year quarter primarily due to a $25.6 million charge related to the Northern Trust-sponsored PGA TOUR golf tournament, charges associated with account servicing activities, and FDIC deposit protection expenses.write-off of an investment in a client capability.
Provision for Income Taxes
Income tax expense for the ninethree months ended SeptemberJune 30, 20172023 was $355.9$108.9 million, representing an effective tax rate of 29.7%. The provision for income taxes was $361.624.7%, compared to $144.4 million forin the nine months ended September 30, 2016,prior-year quarter, representing an effective tax rate of 32.1%26.7%.
The effective tax rate decreased compared to the prior-year quarter primarily due to a lower net tax impact from international operations.
SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS
Overview of Financial Results
Net Income per diluted common share decreased in the current period to $3.07 from $3.63 in the comparable prior-year period. Net Income decreased $119.1 million, or 15%, to $666.4 million in the current period from $785.5 million in the prior-year period. Annualized return on average common equity was 12.4% in the current period and 14.9% in the prior-year period. The annualized return on average assets was 0.91% in the current period compared to 1.00% in the prior-year period.
Revenue for the six months ended June 30, 2023 increased $14.3 million from $3.49 billion in the prior-year period to $3.50 billion in the current period.
Trust, Investment and Other Servicing Fees decreased $151.9 million, or 7%, from $2.31 billion in the prior-year period to $2.16 billion in the current period, primarily driven by unfavorable lagged markets, asset outflows, and unfavorable currency translation, partially offset by lower money market fund fee waivers.
Other Noninterest Income decreased $36.8 million, or 11% from $335.9 million in the prior-year period to $299.1 million in the current period, primarily driven by lower Foreign Exchange Trading Income, partially offset by higher Other Operating Income.
Net Interest Income increased $203.0 million, or 24%, to $1.04 billion in the current period from $839.7 million in the prior-year period, primarily due to higher average interest rates, partially offset by lower average earning assets.
There was a $0.5 million release of credit reserves in the current period, as compared to a $6.5 million Provision for Credit Losses in the prior-year period. The release of credit reserves was primarily due to a decrease in the provisioncollective basis reserve, driven by improvements in credit quality within the commercial and institutional portfolio, partially offset by growth in the size and duration of the CRE portfolio and expectations of higher economic stress in the CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics.
Noninterest Expense increased $188.0 million, or 8%, from $2.43 billion in the prior-year period to $2.62 billion in the current period, primarily attributable to higher Compensation and Equipment and Software expense.
The Provision for Income Taxes for the six months ended June 30, 2023 totaled $218.3 million, representing an effective tax rate of 24.7%. The Provision for Income Taxes for the six months ended June 30, 2022 totaled $265.9 million, representing an effective tax rate of 25.3%. The effective tax rate decreased compared to the prior-year period primarily due to a decrease in pretax earnings and a higher level of tax benefits from tax-credit investments and tax-exempt income, partially offset by lower tax benefits from share-based compensation.
11

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Trust, Investment and Other Servicing Fees
Northern Trust voluntarily waived $4.3 million of money market fund fees for the six months ended June 30, 2023 as compared to $59.3 million for the six months ended June 30, 2022.
The components of Trust, Investment and Other Servicing Fees are provided in the table below.
TABLE 16: TRUST, INVESTMENT AND OTHER SERVICING FEES
SIX MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Asset Servicing Trust, Investment and Other Servicing Fees
Custody and Fund Administration$841.0 $886.5 $(45.5)(5)%
Investment Management260.3 295.3 (35.0)(12)
Securities Lending40.6 40.4 0.2 
Other82.3 82.9 (0.6)(1)
Total Asset Servicing Trust, Investment and Other Servicing Fees$1,224.2 $1,305.1 $(80.9)(6)%
Wealth Management Trust, Investment and Other Servicing Fees
Central$329.6 $359.1 $(29.5)(8)%
East243.9 262.1 (18.2)(7)
West184.9 200.1 (15.2)(8)
Global Family Office177.3 185.4 (8.1)(4)
Total Wealth Management Trust, Investment and Other Servicing Fees$935.7 $1,006.7 $(71.0)(7)%
Total Consolidated Trust, Investment and Other Servicing Fees$2,159.9 $2,311.8 $(151.9)(7)%
Asset Servicing
Custody and Fund Administration fees, the largest component of Asset Servicing fees, decreased primarily driven by unfavorable lagged markets. Investment Management fees decreased primarily due to asset outflows and unfavorable lagged markets, partially offset by lower money market fund fee waivers.
Wealth Management
Fee income in the regions (Central, East and West) decreased primarily due to unfavorable lagged markets and product-related asset outflows, partially offset by lower money market fund fee waivers. Global Family Office fee income decreased primarily due to unfavorable lagged markets, partially offset by lower money market fund fee waivers.

12

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Other Noninterest Income

The components of other noninterest income are provided in the following table.
TABLE 17: OTHER NONINTEREST INCOME
SIX MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Foreign Exchange Trading Income$103.1 $158.5 $(55.4)(35)%
Treasury Management Fees16.3 21.7 (5.4)(25)
Security Commissions and Trading Income70.8 69.0 1.8 
Other Operating Income102.0 86.7 15.3 18 
Investment Security Gains (Losses), net6.9 — 6.9 N/M
Total Other Noninterest Income$299.1 $335.9 $(36.8)(11)%
N/M - Not meaningful
Foreign Exchange Trading Income decreased from the prior-year period, primarily due to lower client volumes and an unfavorable impact from foreign exchange swap activity.
TreasuryManagementFees decreased from the prior-year period, primarily due to an increase in the earnings credit rate applied to client balances.
Other Operating Income increased from the prior-year period, primarily driven by higher income associated with a market value increase in supplemental compensation plans, increased income related to a bank-owned life insurance program, higher non-trading foreign exchange income, and increased income from banking and credit-related services fees, partially offset by higher expenses related to existing swap agreements related to Visa Inc. Class B common shares. Please refer to Note 15—Other Operating Income to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited) for further detail.
Investment Security Gains (Losses), net included a $6.9 million gain upon sale of certain available for sale debt securities in the current-year period. Please refer to Note 4—Securities to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited) for additional details related to the sale of available for sale debt securities.
13

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income
The following tables present an analysis of average daily balances and interest rate changes affecting Net Interest Income and an analysis of Net Interest Income changes.
TABLE 18: AVERAGE CONSOLIDATED BALANCE SHEETS WITH ANALYSIS OF NET INTEREST INCOME
(INTEREST AND RATE ON A FULLY TAXABLE EQUIVALENT BASIS)SIX MONTHS ENDED JUNE 30,
20232022
($ In Millions)INTERESTAVERAGE BALANCE
AVERAGE
RATE(7)
INTERESTAVERAGE BALANCE
AVERAGE
RATE(7)
Interest-Earning Assets
Federal Reserve and Other Central Bank Deposits$775.9 $35,504.9 4.41 %$76.8 $40,921.8 0.38 %
Interest-Bearing Due from and Deposits with Banks(1)
60.3 4,387.1 2.77 9.1 4,305.4 0.43 
Federal Funds Sold0.3 11.2 4.85 — 1.5 0.67 
Securities Purchased under Agreements to Resell(2)
410.2 1,142.9 72.38 7.9 921.7 1.74 
Debt Securities
Available for Sale489.4 24,769.8 3.98 258.6 36,581.4 1.43 
Held to Maturity216.3 25,216.8 1.72 105.5 20,773.3 1.02 
Trading Account 0.7 12.45 — 0.6 8.59 
Total Debt Securities705.7 49,987.3 2.85 364.1 57,355.3 1.28 
Loans and Leases(3)
1,220.0 42,163.5 5.83 448.8 40,149.0 2.25 
Other Interest-Earning Assets(4)
44.3 1,834.9 4.87 19.4 1,153.1 3.39 
Total Interest-Earning Assets3,216.7 135,031.8 4.80 926.1 144,807.8 1.29 
Cash and Due from Banks and Other Central Bank Deposits(5)
 1,819.3  — 2,304.4 — 
Other Noninterest-Earning Assets 10,122.7  — 10,979.1 — 
Total Assets$ $146,973.8  %$— $158,091.3 — %
Average Source of Funds
Deposits
Savings, Money Market and Other$310.8 $25,103.0 2.50 %$22.0 $31,644.6 0.14 %
Savings Certificates and Other Time53.6 2,700.0 4.00 2.2 817.1 0.54 
Non-U.S. Offices — Interest-Bearing833.7 62,227.7 2.70 (16.9)66,038.3 (0.05)
Total Interest-Bearing Deposits1,198.1 90,030.7 2.68 7.3 98,500.0 0.01 
Federal Funds Purchased127.7 5,371.4 4.79 2.8 464.0 1.22 
Securities Sold under Agreements to Repurchase(2)
389.5 407.8 192.58 6.3 426.1 2.97 
Other Borrowings(6)
291.5 11,730.6 5.01 11.5 3,940.2 0.59 
Senior Notes81.3 2,754.6 5.97 28.5 2,664.9 2.17 
Long-Term Debt59.6 2,068.0 5.81 12.2 1,112.3 2.20 
Total Interest-Related Funds2,147.7 112,363.1 3.85 68.6 107,107.5 0.13 
Interest Rate Spread  0.95 — — 1.16 
Demand and Other Noninterest-Bearing Deposits 18,843.3  — 35,421.8 — 
Other Noninterest-Bearing Liabilities 4,401.9  — 4,354.5 — 
Stockholders’ Equity 11,365.5  — 11,207.5 — 
Total Liabilities and Stockholders’ Equity$ $146,973.8  %$— $158,091.3 — %
Net Interest Income/Margin (FTE Adjusted)$1,069.0 $ 1.60 %$857.5 $— 1.19 %
Net Interest Income/Margin (Unadjusted)$1,042.7 $ 1.56 %$839.7 $— 1.17 %
(1)Interest-Bearing Due from and Deposits with Banks includes the interest-bearing component of Cash and Due from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
(2)Includes the impact of balance sheet netting under master netting arrangements of approximately $15.7 billion and $2.0 billion for the six months ended June 30, 2023 and 2022, respectively. Excluding the impact of netting for the six months ended June 30, 2023 and 2022, the average interest rate on Securities Purchased under Agreements to Resell would be approximately 4.92% and 0.55%, respectively. Excluding the impact of netting for the six months ended June 30, 2023 and 2022, the average interest rate on Securities Sold under Agreements to Repurchase would be approximately 4.88% and 0.53%, respectively. Northern Trust nets securities sold under repurchase agreements against those purchased under resale agreements when there is a legally enforceable master netting agreement.
(3)Average balances include nonaccrual loans.
(4)Other Interest-Earning Assets include certain community development investments, collateral deposits with certain securities depositories and clearing houses, Federal Home Loan Bank and Federal Reserve stock, and money market investments which are classified in Other Assets on the consolidated balance sheets.
(5)Cash and Due from Banks and Other Central Bank Deposits includes the noninterest-bearing component of Federal Reserve and Other Central Bank Deposits on the consolidated balance sheets.
(6)Other Borrowings primarily includes advances from the Federal Home Loan Bank of Chicago.
(7)Rate calculations are based on actual balances rather than the rounded amounts presented in the average consolidated balance sheets with analysis of Net Interest Income.

14

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)

TABLE 19: ANALYSIS OF NET INTEREST INCOME CHANGES DUE TO VOLUME AND RATE(1)
(INTEREST AND RATE ON A FULLY TAXABLE EQUIVALENT BASIS)SIX MONTHS ENDED JUNE 30, 2023/2022
CHANGE DUE TO
(In Millions)AVERAGE BALANCEAVERAGE
 RATE
NET (DECREASE) INCREASE
Increase (Decrease) in Net Interest Income (FTE)
Federal Reserve and Other Central Bank Deposits$(55.8)$754.9 $699.1 
Interest-Bearing Due from and Deposits with Banks0.2 51.0 51.2 
Federal Funds Sold 0.3 0.3 
Securities Purchased under Agreements to Resell2.4 399.9 402.3 
Debt Securities
Available For Sale(80.9)311.7 230.8 
Held To Maturity26.5 84.3 110.8 
Trading Account   
Total Debt Securities(54.4)396.0 341.6 
Loans and Leases19.3 751.9 771.2 
Other Interest-Earning Assets14.4 10.5 24.9 
Total Interest Income$(73.9)$2,364.5 $2,290.6 
Interest-Bearing Deposits
Savings, Money Market and Other$(10.4)$299.2 $288.8 
Savings Certificates and Other Time8.5 42.9 51.4 
Non-U.S. Offices - Interest-Bearing(6.0)856.6 850.6 
Total Interest-Bearing Deposits(7.9)1,198.7 1,190.8 
Federal Funds Purchased97.8 27.1 124.9 
Securities Sold under Agreements to Repurchase(0.3)383.5 383.2 
Other Borrowings58.5 221.5 280.0 
Senior Notes1.0 51.8 52.8 
Long-Term Debt16.3 31.1 47.4 
Total Interest Expense$165.4 $1,913.7 $2,079.1 
(Decrease) Increase in Net Interest Income (FTE)$(239.3)$450.8 $211.5 
(1)     Changes not due solely to average balance changes or rate changes are allocated proportionately to average balance and rate based on their relative absolute magnitudes.
Notes:    Net Interest Income (FTE Adjusted), a non-GAAP financial measure, includes adjustments to a fully taxable equivalent basis for loans and securities. The adjustments are based on a federal income tax rate of 21.0%, where the rate is adjusted for applicable state income taxes, net of related federal tax benefit. Total taxable equivalent interest adjustments amounted to $26.3 million and $17.8 million for the six months ended June 30, 2023 and 2022, respectively. A reconciliation of Net Interest Income and net interest margin on a GAAP basis to Net Interest Income and net interest margin on an FTE basis (each of which is a non-GAAP financial measure) is provided in “Reconciliation to Fully Taxable Equivalent” within this MD&A. Net interest margin is calculated by dividing annualized net interest income by average interest-earning assets.
Interest revenue on cash collateral positions is reported above within Interest-Bearing Due from and Deposits with Banks and within Loans and Leases. Interest expense on cash collateral positions is reported above within Non-U.S. Offices Interest-Bearing Deposits. Related cash collateral received from and deposited with derivative counterparties is recorded net of the associated derivative contract within Other Assets and Other Liabilities, respectively.
Net Interest Income, stated on an FTE basis, increased from the prior-year period, primarily due to higher average interest rates, partially offset by lower average earning assets. Average earning assets decreased from the prior-year period, primarily due to lower client deposits, partially offset by increased short-term borrowing activity.
The net interest margin on an FTE basis increased from the prior-year period, primarily due to higher average interest rates, partially offset by unfavorable balance sheet mix shift.
Federal Reserve and Other Central Bank Deposits averaged $35.5 billion and decreased $5.4 billion, or 13%, from $40.9 billion in the prior-year period. Average Securities were $50.0 billion and decreased $7.4 billion, or 13%, from $57.4 billion in the prior-year period and include certain community development investments, Federal Home Loan Bank stock, collateral deposits with certain securities depositories and clearing houses, money market investments, and Federal Reserve stock of $901.9 million, $375.9 million, $266.6 million, $76.6 million and $70.0 million, respectively, which are recorded in Other Assets on the consolidated balance sheets. Average taxable Securities were $47.0 billion in the current period and $54.8 billion in the prior-year period. Average nontaxable Securities, which represent securities that are primarily exempt from U.S. federal and state income taxes, were $3.0 billion in the current period and $2.6 billion in the prior-year period. Interest-Bearing Due from and Deposits with Banks averaged $4.4 billion in the current period and $4.3 billion in the prior-year period.
Loans and leases averaged $42.2 billion and increased $2.1 billion, or 5%, from $40.1 billion in the prior-year period, primarily reflecting higher levels of commercial and institutional, commercial real estate, residential real estate, and non-U.S. loans, partially offset by lower levels of private client loans. Commercial and institutional loans averaged $12.7 billion and increased $705.3 million, or 6%, from $12.0 billion for the prior-year period. Commercial real estate loans averaged $4.9 billion and
15

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Net Interest Income (continued)

increased $605.3 million, or 14%, from $4.3 billion for the prior-year period. Residential real estate loans averaged $6.4 billion and increased $135.6 million, or 2%, from $6.3 billion for the prior-year period. Non-U.S. loans averaged $3.5 billion and increased $97.6 million or 3% from $3.4 billion for the prior-year period. Private client loans averaged $13.8 billion and decreased $122.0 million, or 1%, from $14.0 billion for the prior-year period.
Northern Trust utilizes a diverse mix of funding sources. Average Interest-Bearing Deposits decreased $8.5 billion, or 9%, to an average of $90.0 billion in the current period from $98.5 billion in the prior-year period. Other Average Interest-Related Funds increased $13.7 billion, or 159%, to an average of $22.3 billion in the current period from $8.6 billion in the prior-year period. The balances within short-term borrowing classifications vary based on funding requirements and strategies, interest rate levels, changes in the volume of lower-cost deposit sources, and the availability of collateral to secure these borrowings.
Interest expense for Interest-Bearing Deposits in the current period was driven by higher interest rates. Average non-U.S. offices interest-bearing deposits comprised 69% and 67% of total average interest-bearing deposits for the six months ended June 30, 2023 and 2022, respectively.
Provision for Credit Losses
There was a $0.5 million release of credit reserves for the six months ended June 30, 2023, as compared to a $6.5 million provision in the prior-year period. The release of credit reserves was primarily due to a decrease in the collective basis reserve, driven by improvements in credit quality within the commercial and institutional portfolio, partially offset by growth in the size and duration of the CRE portfolio and expectations of higher economic stress in the CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics.
The provision in the prior-year period was primarily due to an increase in the Federalreserve evaluated on a collective basis and State researchan increase in the reserve evaluated on an individual basis for two commercial borrowers, partially offset by net recoveries during the prior-year period. The increase in the collective basis reserve was primarily driven by market conditions at the time and a higher risk of recession as compared to the previous period, partially offset by improvements in credit quality mainly within the commercial real estate and commercial and institutional portfolios.
Net charge-offs in the current-year period totaled $2.9 million resulting from $4.8 million of charge-offs and $1.9 million of recoveries, compared to net recoveries of $8.7 million in the prior-year period resulting from $0.1 million of charge-offs and $8.8 million of recoveries.
For additional discussion of the allowance for credit losses, refer to the “Asset Quality” section in this MD&A.
Noninterest Expense
The components of Noninterest Expense are provided in the following table.
TABLE 20: NONINTEREST EXPENSE
SIX MONTHS ENDED JUNE 30,
($ In Millions)20232022CHANGE
Compensation$1,199.7 $1,110.4 $89.3 %
Employee Benefits202.4 223.9 (21.5)(10)
Outside Services441.7 426.5 15.2 
Equipment and Software461.0 397.0 64.0 16 
Occupancy115.1 102.1 13.0 13 
Other Operating Expense197.6 169.6 28.0 17 
Total Noninterest Expense$2,617.5 $2,429.5 $188.0 %
Compensation expense, the largest component of Noninterest Expense increased compared to the prior-year period, primarily due to higher salary expense and $36.7 million of severance-related charges, partially offset by lower incentives.
Employee Benefits expense decreased compared to the prior-year period, primarily due to a U.S. Qualified Plan pension settlement charge of $20.3 million in the prior-year period.
Outside Services expense increased compared to the prior-year period, primarily reflecting higher technical services, partially offset by lower subcustodian expense and third-party advisory fees.
Equipment and Software expense increased compared to the prior-year period, primarily due to higher amortization as well as higher software costs driven by continued technology investments.
16

SIX-MONTH CONSOLIDATED RESULTS OF OPERATIONS (continued)
Noninterest Expense (continued)

Occupancy expense increased compared to the prior-year period, primarily due to a $9.8 million charge during the first quarter related to early lease exits.
Other Operating Expense increased compared to the prior-year period, primarily due to a $25.6 million charge related to the write-off of an investment in a client capability.
Provision for Income Taxes
Income tax creditsexpense for the six months ended June 30, 2023 was $218.3 million, representing an effective tax rate of $17.624.7%, compared to $265.9 million recognizedfor the six months ended June 30, 2022, representing an effective tax rate of 25.3%.
The effective tax rate decreased compared to the prior-year period primarily due to a decrease in pretax earnings and a higher level of tax benefits from tax-credit investments and tax-exempt income, partially offset by lower tax benefits from share-based compensation.
REPORTING SEGMENTS
Northern Trust is organized around its two client-focused reporting segments: Asset Servicing and Wealth Management. Asset management and related services are provided to Asset Servicing and Wealth Management clients primarily by the Asset Management business. The revenue and expenses of Asset Management and certain other support functions are allocated fully to Asset Servicing and Wealth Management.
Reporting segment financial information, presented on an internal management reporting basis, is determined by accounting systems used to allocate revenue and expense to each segment, and incorporates processes for allocating assets, liabilities, equity and the applicable interest income and expense utilizing a funds transfer pricing (FTP) methodology. Under the methodology, assets and liabilities receive a funding charge or credit that considers interest rate risk, liquidity risk, and other product characteristics on an instrument level. Additionally, segment information is presented on an FTE basis as management believes an FTE presentation provides a clearer indication of net interest income. The adjustment to an FTE basis has no impact on Net Income.
Revenues, expenses and average assets are allocated to Asset Servicing and Wealth Management, with the exception of non-recurring activities such as certain costs associated with acquisitions, divestitures, litigation, restructuring, and tax adjustments not directly attributable to a specific reporting segment.
Reporting segment results are subject to reclassification when organizational changes are made. The results are also subject to refinements in revenue and expense allocation methodologies, which are typically reflected on a prospective basis.
17

REPORTING SEGMENTS (continued)
The following table presents the earnings contributions and average assets of Northern Trust’s reporting segments for the three- and six-month periods ended June 30, 2023 and 2022.
TABLE 21: RESULTS OF REPORTING SEGMENTS
($ In Millions)ASSET SERVICINGWEALTH MANAGEMENTOTHERRECONCILING ITEMSTOTAL CONSOLIDATED
THREE MONTHS ENDED JUNE 30,2023202220232022202320222023202220232022
Noninterest Income
Trust, Investment and Other Servicing Fees$621.2 $642.8 $475.1 $500.6 $ $— $ $— $1,096.3 $1,143.4 
Foreign Exchange Trading Income (Loss)52.0 74.8 (1.9)2.8  —  — 50.1 77.6 
Other Noninterest Income69.7 61.8 40.4 32.8 (10.9)(5.6) — 99.2 89.0 
Total Noninterest Income742.9 779.4 513.6 536.2 (10.9)(5.6) — 1,245.6 1,310.0 
Net Interest Income309.3 255.1 215.3 214.7  — (13.1)(11.1)511.5 458.7 
Revenue1,052.2 1,034.5 728.9 750.9 (10.9)(5.6)(13.1)(11.1)1,757.1 1,768.7 
(Release of) Provision for Credit Losses(3.5)0.5 (12.0)4.0  —  — (15.5)4.5 
Noninterest Expense849.4 751.1 476.3 439.1 6.2 33.4  — 1,331.9 1,223.6 
Income before Income Taxes206.3 282.9 264.6 307.8 (17.1)(39.0)(13.1)(11.1)440.7 540.6 
Provision for Income Taxes52.6 74.5 73.7 90.7 (4.3)(9.7)(13.1)(11.1)108.9 144.4 
Net Income$153.7 $208.4 $190.9 $217.1 $(12.8)$(29.3)$ $— $331.8 $396.2 
Percentage of Consolidated Net Income46 %53 %58 %54 %(4)%(7)%N/AN/A100 %100 %
Average Assets$111,029.9 $117,047.6 $34,869.7 $37,036.5 $ $— N/AN/A$145,899.6 $154,084.1 
($ In Millions)ASSET SERVICINGWEALTH MANAGEMENTOTHERRECONCILING ITEMSTOTAL CONSOLIDATED
SIX MONTHS ENDED JUNE 30,2023202220232022202320222023202220232022
Noninterest Income
Trust, Investment and Other Servicing Fees$1,224.2 $1,305.2 $935.7 $1,006.6 $ $— $ $ $2,159.9 $2,311.8 
Foreign Exchange Trading Income (Loss)106.9 152.2 (3.8)6.3  —   103.1 158.5 
Other Noninterest Income132.9 122.9 74.7 64.6 (11.6)(10.1)  196.0 177.4 
Total Noninterest Income1,464.0 1,580.3 1,006.6 1,077.5 (11.6)(10.1)  2,459.0 2,647.7 
Net Interest Income621.4 445.2 447.6 412.3  — (26.3)(17.8)1,042.7 839.7 
Revenue2,085.4 2,025.5 1,454.2 1,489.8 (11.6)(10.1)(26.3)(17.8)3,501.7 3,487.4 
(Release of) Provision for Credit Losses(6.4)8.9 5.9 (2.4) —   (0.5)6.5 
Noninterest Expense1,650.4 1,509.0 945.5 884.2 21.6 36.3   2,617.5 2,429.5 
Income before Income Taxes441.4 507.6 502.8 608.0 (33.2)(46.4)(26.3)(17.8)884.7 1,051.4 
Provision for Income Taxes113.1 126.3 139.8 169.0 (8.3)(11.6)(26.3)(17.8)218.3 265.9 
Net Income$328.3 $381.3 $363.0 $439.0 $(24.9)$(34.8)$ $ $666.4 $785.5 
Percentage of Consolidated Net Income49 %49 %55 %55 %(4)%(4)%N/AN/A100 %100 %
Average Assets$111,143.6 $121,114.2 $35,830.2 $36,977.1 $ $— N/AN/A$146,973.8 $158,091.3 
Note: Segment results are stated on an FTE basis. The FTE adjustments are eliminated in the reconciling items column with the Corporation’s total consolidated financial results stated on a GAAP basis. The adjustment to an FTE basis has no impact on Net Income.
Asset Servicing
Asset Servicing Net Income
For the quarter ended June 30, 2023, Net Income decreased $54.7 million, or 26%, from the prior-year quarter, primarily reflecting higher Noninterest Expense, partially offset by higher Net Interest Income.
For the six months ended June 30, 2023, Net Income, decreased $53.0 million, or 14%, from the prior-year period, primarily reflecting higher Noninterest Expense and lower Trust, Investment and Other Servicing Fees, partially offset by higher Net Interest Income.
18

REPORTING SEGMENTS (continued)
Asset Servicing (continued)
Asset Servicing Trust, Investment and Other Servicing Fees
For an explanation of Asset Servicing Trust, Investment, and Other Servicing Fees, please see the “Trust, Investment and Other Servicing Fees” section within the Consolidated Results of Operations section of the MD&A.
Asset Servicing Foreign Exchange Trading Income
For the three and six months ended June 30, 2023, Foreign Exchange Trading Income decreased $22.8 million, or 30%, from the prior-year quarter and decreased $45.3 million, or 30%, from the prior-year period, primarily driven by lower client volumes and an unfavorable impact from foreign exchange swap activity.
Asset Servicing Other Noninterest Income
For the quarter ended June 30, 2023, Other Noninterest Income increased $7.9 million, or 13%, from the prior-year quarter, primarily due to higher Other Operating Income.
For the six months ended June 30, 2023, Other Noninterest Income increased $10.0 million, or 8%, from the prior-year period, primarily due to higher allocations, including in Other Operating Income.
Asset Servicing Net Interest Income
For the quarter ended June 30, 2023, Net Interest Income stated on an FTE basis increased $54.2 million, or 21%, from the prior-year quarter. For the six months ended June 30, 2023, Net Interest Income stated on an FTE basis increased $176.2 million, or 40%, from the prior-year period. The increase for the three and six months ended June 30, 2023 primarily reflected higher average interest rates.
Average earning assets decreased $4.0 billion, or 4%, to $101.8 billion in the current periodquarter from $105.8 billion in the prior-year quarter and decreased $8.3 billion, or 8%, to $101.9 billion for the six months ended June 30, 2023 from $110.2 billion in the prior-year period. Average earning assets decreased in Asset Servicing for the three and six months ended June 30, 2023 primarily due to lower client deposits, partially offset by increased short-term borrowing activity.
Asset Servicing Provision for Credit Losses
For the completionthree and six months ended June 30, 2023, there was a $3.5 million and a $6.4 million release of credit reserves, respectively, compared to a recent study$0.5 million and a $8.9 million Provision for Credit Losses for the three and six months ended June 30, 2022, respectively.
The release of credit reserves for the three and six months ended June 30, 2023 was primarily due to a decrease in the reserve evaluated on a collective basis, primarily driven by improved credit quality of certain commercial and institutional loans. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar characteristics.
Asset Servicing Noninterest Expense
For the three and six months ended June 30, 2023, Noninterest Expense, which includes the direct expense of the Corporation’s technology spend between 2013reporting segment, indirect expense allocations for product and 2016, as well asoperating support and indirect expense allocations for certain corporate support services, increased $98.3 million, or 13%, from the prior-year quarter and increased $141.4 million, or 9%, from the prior-year period,primarily due to higher expense allocations, Compensation, Other Operating Expense, and Outside Services.
Wealth Management
Wealth Management Net Income
For the quarter ended June 30, 2023, Net Income decreased $26.2 million, or 12%, from the prior-year quarter primarily due to higher Noninterest Expense and lower Trust, Investment and Other Servicing Fees, partially offset by a lower Provision for Income Taxes and a release of credit reserves compared to a Provision for Credit Losses in the prior-year quarter.
For the six months ended June 30, 2023, Net Income decreased $76.0 million, or 17%, from the prior-year period, primarily reflecting lower Trust, Investment and Other Servicing Fees and higher Noninterest Expense, partially offset by higher Net Interest Income and a lower Provision for Income Taxes.
Wealth Management Trust, Investment and Other Servicing Fees
For an explanation of Wealth Management Trust, Investment and Other Servicing Fees, please see the “Trust, Investment and Other Servicing Fees” section within the Consolidated Results of Operations section of the MD&A.
Wealth Management Other Noninterest Income
For the quarter ended June 30, 2023, Other Noninterest Income increased $7.6 million, or 23%, from the prior-year quarter primarily due to higher Other Operating Income.
For the six months ended June 30, 2023, Other Noninterest Income increased $10.1 million, or 16%, from the prior-year period, primarily due to higher income tax benefit derivedallocations and Other Operating Income.
19

REPORTING SEGMENTS (continued)
Wealth Management (continued)
Wealth Management Net Interest Income
For the quarter ended June 30, 2023, Net Interest Income stated on an FTE basis increased $0.6 million from the prior-year quarter. For the six months ended June 30, 2023, Net Interest Income stated on an FTE basis increased vesting of restricted stock units$35.3 million, or 9%, from the prior-year period. The increase for the three and stock option exercisessix months ended June 30, 2023, primarily reflected higher average interest rates.
Average earning assets decreased $1.8 billion, or 5%, to $32.3 billion in the current periodquarter from $34.1 billion in the prior-year quarter and decreased $1.4 billion, or 4%, to $33.2 billion for the six months ended June 30, 2023 from $34.6 billion in the prior-year period. Average earning assets decreased in Wealth Management for the three and six months ended June 30, 2023 primarily due to lower client deposits, partially offset by higher average lending activity.
Wealth Management Provision for Credit Losses
For the three and six months ended June 30, 2023, there was a $12.0 million release of credit reserves and a $5.9 million Provision for Credit Losses, respectively, compared to a $4.0 million Provision for Credit Losses and a $2.4 million release of credit reserves for the three and six months ended June 30, 2022, respectively.

The release of credit reserves for the three months ended June 30, 2023 reflected a decrease in the reserve evaluated on a collective basis, which relates to pooled financial assets sharing similar risk characteristics. The decrease in the collective basis reserve was primarily due to improved credit quality in certain commercial and institutional and certain CRE loans, partially offset by expectations of higher economic stress in the CRE market, particularly office CRE.

The Provision for Credit Losses for the six months ended June 30, 2023 was primarily due to an increase in the reserve evaluated on a collective basis, primarily due to growth in the size and duration of the CRE portfolio and expectations of higher economic stress in the CRE market, particularly office CRE, partially offset by improved credit quality for certain commercial and institutional and certain CRE loans.
Wealth Management Noninterest Expense
For the quarter ended June 30, 2023, Noninterest Expense, which includes the direct expenses of the reporting segment, indirect expense allocations for product and operating support and indirect expense allocations for certain corporate support services, increased $37.2 million, or 8%, from the prior-year quarter, primarily reflecting higher expense allocations and Other Operating Expense. For the six months ended June 30, 2023, Noninterest Expense increased $61.3 million, or 7%, from the prior-year period, primarily reflecting higher expense allocations, Compensation, and Other Operating Expense.
Other
Other—Noninterest Income
For the quarter ended June 30, 2023, Other Noninterest Income decreased $5.3 million, or 95%, primarily due to higher expenses for existing swap agreements related to Visa Inc. Class B common shares.
Other—Noninterest Expense
For the quarter ended June 30, 2023, Other Noninterest Expense decreased $27.2 million, or 81%, primarily due to a $20.3 million pension settlement charge in the prior-year quarter.
For the six months ended June 30, 2023, Other Noninterest Expense decreased $14.7 million, or 40%, from the prior-year period, primarily due to a $20.3 million pension settlement charge in the prior-year period and other miscellaneous expense in the prior-year period, partially offset by increased income before income taxes and a $4.3 million charge related to an increase in the Illinois state deferred income tax reserve resultinghigher non-allocated occupancy expense primarily arising from an increase in the Illinois income tax rate. The provision for income tax expense for the nine months ended September 30, 2017 and September 30, 2016 includes a benefit of $25.9 million and $12.3 million, respectively, related to excess tax benefits resulting from the vesting of restricted stock units and stock option exercises.early lease exits.

20

CONSOLIDATED BALANCE SHEETS
Total assets were $131.4 billionThe following tables summarize selected consolidated balance sheet information.
TABLE 22: SELECT CONSOLIDATED BALANCE SHEET INFORMATION
($ In Billions)JUNE 30, 2023DECEMBER 31, 2022CHANGE
Assets
Federal Reserve and Other Central Bank Deposits$42.7 $40.0 $2.7 %
Interest-Bearing Due from and Deposits with Banks(1)
4.6 4.9 (0.3)(6)
Securities Purchased under Agreements to Resell1.2 1.1 0.1 15 
Total Debt Securities50.3 51.8 (1.5)(3)
Loans43.5 42.9 0.6 
Other Interest-Earning Assets(2)
2.7 1.8 0.9 52 
Total Earning Assets145.0 142.5 2.5 
Total Assets156.8 155.0 1.8 
Liabilities and Stockholders' Equity
Total Interest-Bearing Deposits91.9 98.6 (6.7)(7)
Demand and Other Noninterest-Bearing Deposits21.3 25.3 (4.0)(16)
Federal Funds Purchased9.3 1.9 7.4 N/M
Securities Sold under Agreements to Repurchase1.0 0.6 0.4 74 
Other Borrowings(3)
12.4 7.6 4.8 63 
Total Stockholders’ Equity11.6 11.3 0.3 
(1)    Interest-Bearing Due from and $123.9 billion at September 30, 2017Deposits with Banks includes the interest-bearing component of Cash and December 31, 2016, respectively,Due from Banks and averaged $121.2 billionInterest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
(2)    Other Interest-Earning Assets includes certain community development investments, collateral deposits with certain securities depositories and clearing houses, Federal Home Loan Bank and Federal Reserve stock, and money market investments which are classified in Other Assets on the current quarter comparedconsolidated balance sheets.
(3)    Other Borrowings primarily includes advances from the Federal Home Loan Bank of Chicago.
N/M - Not meaningful
TABLE 23: SELECT AVERAGE CONSOLIDATED BALANCE SHEET INFORMATION
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
($ In Billions)20232022CHANGE20232022CHANGE
Assets
Federal Reserve and Other Central Bank Deposits$34.4 $36.7 $(2.3)(6)%$35.5 $40.9 $(5.4)(13)%
Interest-Bearing Due from and Deposits with Banks(1)
4.6 4.2 0.4 4.4 4.3 0.1 
Securities Purchased under Agreements to Resell1.2 1.1 0.1 1.1 0.9 0.2 24 
Total Debt Securities49.6 55.9 (6.3)(11)50.0 57.4 (7.4)(13)
Loans and Leases42.4 40.8 1.6 42.2 40.2 2.0 
Other Interest-Earning Assets(2)
1.9 1.2 0.7 71 1.8 1.1 0.7 59 
Total Earning Assets134.1 139.9 (5.8)(4)135.0 144.8 (9.8)(7)
Total Assets145.9 154.1 (8.2)(5)147.0 158.1 (11.1)(7)
Liabilities and Stockholders' Equity
Total Interest-Bearing Deposits88.0 95.7 (7.7)(8)90.0 98.5 (8.5)(9)
Demand and Other Noninterest-Bearing Deposits17.6 33.7 (16.1)(48)18.8 35.4 (16.6)(47)
Federal Funds Purchased7.1 0.9 6.2 N/M5.4 0.5 4.9 N/M
Securities Sold under Agreements to Repurchase0.5 0.6 (0.1)(22)0.4 0.4 — (4)
Other Borrowings(3)
12.1 4.2 7.9 19011.7 3.9 7.8 198 
Total Stockholders’ Equity11.4 10.9 0.5 11.4 11.2 0.2 
(1)    Interest-Bearing Due from and Deposits with $116.4 billionBanks includes the interest-bearing component of Cash and Due from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
(2)    Other Interest-Earning Assets includes certain community development investments, collateral deposits with certain securities depositories and clearing houses, Federal Home Loan Bank and Federal Reserve stock, and money market investments which are classified in Other Assets on the quarter ended September 30, 2016. consolidated balance sheets.
(3)    Other Borrowings primarily includes advances from the Federal Home Loan Bank of Chicago.
N/M - Not meaningful
Average balances are considered to be a better measure of balance sheet trends, as period-end balances can be impacted by the timing of deposit and withdrawal activity involving large client balances. LoansAverage earning assets decreased from the prior-year quarter and leases totaled $33.3 billionprior-year period, primarily due to lower client deposits, partially offset by higher short-term borrowing activity.
Select Earning Assets. Average securities decreased from the prior-year quarter and $33.8 billion at September 30, 2017prior-year period, reflecting the impact of repositioning and December 31, 2016, respectively,reinvesting in short-term securities that will mature usually in one year or less. For additional discussion
21

CONSOLIDATED BALANCE SHEETS (continued)
relating to the securities portfolio, refer to the “Asset Quality” section in this MD&A and averaged $33.5 billion in the current quarter, down 1% from $33.9 billion in the quarter ended September 30, 2016. to Note 4—Securities inclusive of Federal Reserve stock, Federal Home Loan Bank stock, and certain community development investments, which are classified in other assets into the consolidated balance sheets, totaled $45.2 billionfinancial statements provided in Item 1. Consolidated Financial Statements (unaudited).
Client Deposits. AverageInterest-Bearing Deposits and $44.9 billion at September 30, 2017Demand and December 31, 2016, respectively,Other Noninterest-Bearing Deposits decreased from the prior-year quarter and averaged $44.7 billionprior-year period as clients migrated into higher yielding products.
Short-Term Borrowings. Short-term borrowings includes Federal Funds Purchased, Securities Sold under Agreements to Repurchase, and Other Borrowings. The increase in average Other Borrowings from the prior-year quarter and prior-year period was primarily due to borrowings executed to manage regulatory liquidity ratios and as part of an overall net interest income strategy, based on the spread earned on these borrowings.
Stockholders’ Equity. The increase in average Stockholders’ Equity for the current quarter up 3% from $43.3 billion in the quarter ended September 30, 2016. In aggregate, the categories of federal funds sold and securities purchased under agreementswas primarily due to resell, interest-bearing due from and deposits with banks, and Federal Reserve and other central bank deposits totaled $44.0 billion and $36.7 billion at September 30, 2017 and December 31, 2016, respectively, and averaged $34.3 billion in the current quarter, up 12% from $30.7 billion in the quarter ended September 30, 2016, primarily reflecting increased Federal Reserve and other central bank deposits, partially offset by decreased interest-bearing due from and deposits with banks. Interest-bearing client deposits at September 30, 2017 and December 31, 2016, totaled $79.5 billion and $71.5 billion, respectively, and averaged $75.4 billion in the current quarter compared to $67.9 billion in the quarter ended September 30, 2016. Noninterest-bearing client deposits at September 30, 2017 and December 31, 2016 totaled $26.3 billion and $30.2 billion, respectively, and averaged $21.7 billion in the current quarter, down 16% from $25.8 billion in the quarter ended September 30, 2016.
Total stockholders’ equity at September 30, 2017, was $10.2 billion compared to $9.8 billion at December 31, 2016, and averaged $10.0 billion for the current quarter, up 9% from $9.2 billion for the quarter ended September 30, 2016.higher Retained Earnings. The increase in average stockholders’ equity compared toStockholders’ Equity for the prior-year quartercurrent-year period was primarily attributable to earnings and the issuance of preferred stock,higher Retained Earnings, partially offset by the repurchase of common stock pursuantchanges in Accumulated Other Comprehensive Loss relative to the Corporation’s share repurchase program and dividend declarations.prior-year period.
During the three and ninesix months ended SeptemberJune 30, 2017,2023, the Corporation declared cash dividends totaling $97.3$157.8 million and $275.7$316.4 million to common stockholders, and cash dividends totaling $17.3$4.7 million and $43.9$20.9 million to preferred stockholders, respectively. During the three and ninesix months ended SeptemberJune 30, 2017,2022, the Corporation declared cash dividends totaling $148.0 million and $295.8 million to common stockholders, and cash dividends totaling $4.7 million and $20.9 million to preferred stockholders, respectively.
For the three and six months ended June 30, 2023, the Corporation repurchased 1,411,6961,361,828 and 2,412,055 shares of common stock, including 43,871 shares withheld related to share-based compensation,respectively, at a total cost of $124.8$99.3 million ($88.4372.91 average price per share) and 3,983,690$200.2 million ($82.98 average price per share), respectively, including 14,596 and341,407shares, respectively, withheld to satisfy tax withholding obligations related to share-based compensation.
For the three and six months ended June 30, 2022, the Corporation repurchased 2,844 and 298,254 shares of common stock, including 459,082 shares withheld related to share-based compensation,respectively, at a total cost of $352.5$0.3 million ($88.50110.36 average price per share) and $34.1 million ($114.54 average price per share), respectively.respectively, all of which were shares withheld to satisfy tax withholding obligations related to share-based compensation.

20

CAPITAL RATIOS


The capital ratios of Northern Trust and its principal subsidiary, The Northern Trust Company, remained strong at September 30, 2017, exceeding the minimum requirements for classification as “well-capitalized” under applicable U.S. regulatory requirements.
The table below provides capital ratios for Northern Trust Corporation and The Northern Trust Company determined by Basel III phased in requirements.
Table 23: Regulatory Capital Ratios
Capital Ratios — Northern Trust CorporationSeptember 30, 2017 June 30, 2017 September 30, 2016
Advanced
Approach
 
Standardized
Approach
 
Advanced
Approach
 
Standardized
Approach
 
Advanced
Approach
 
Standardized
Approach
Common Equity Tier 113.3% 12.3% 13.2% 12.3% 11.8% 11.2%
Tier 114.6% 13.4% 14.5% 13.5% 13.1% 12.3%
Total16.4% 15.4% 16.5% 15.6% 14.5% 14.0%
Tier 1 Leverage8.0% 8.0% 8.1% 8.1% 7.9% 7.9%
Supplementary Leverage6.9% N/A
 7.0% N/A
 6.6% N/A

Capital Ratios — The Northern Trust CompanySeptember 30, 2017 June 30, 2017 September 30, 2016
Advanced
Approach
 
Standardized
Approach
 
Advanced
Approach
 
Standardized
Approach
 
Advanced
Approach
 
Standardized
Approach
Common Equity Tier 113.5% 12.2% 13.3% 12.1% 12.0% 11.1%
Tier 113.5% 12.2% 13.3% 12.1% 12.0% 11.1%
Total15.1% 13.9% 14.9% 13.9% 13.6% 12.9%
Tier 1 Leverage7.2% 7.2% 7.2% 7.2% 7.0% 7.0%
Supplementary Leverage6.2% N/A
 6.2% N/A
 5.9% N/A
STATEMENTS OF CASH FLOWS
Net cash provided by operating activities of $869.7 million for the nine months ended September 30, 2017, was primarily attributable to period earnings, net collateral deposited with derivative counterparties, and the impact of non-cash charges such as amortization of computer software, partially offset by net changes in other operating activities primarily due to a decrease in accounts payable. For the nine months ended September 30, 2016, net cash provided by operating activities of $671.5 million was primarily attributable to period earnings, partially offset by net collateral deposited with counterparties.
Net cash used in investing activities of $6.0 billion for the nine months ended September 30, 2017, was primarily attributable to increased levels of Federal Reserve and other central bank deposits and interest-bearing deposits with banks, offset by lower levels of loans and leases as well as net proceeds from sale, maturity and redemption of securities available for sale. For the nine months ended September 30, 2016, net cash used in investing activities of $5.3 billion was primarily attributable to net purchases of securities available for sale and held to maturity, partially offset by a reduction in interest-bearing deposits with banks and Federal Reserve and other central bank deposits.
Net cash provided by financing activities of $4.8 billion for the nine months ended September 30, 2017, was primarily attributable to increased levels of total deposits, federal funds purchased, short-term other borrowings, and the proceeds from the issuance of fixed-to-floating rate subordinated notes, partially offset by the repurchase of common stock pursuant to the Corporation’s share repurchase program, and cash dividends paid to common and preferred stockholders. The increase in total deposits was attributable to higher levels of interest-bearing and non-interest bearing non-U.S. office client deposits. For the nine months ended September 30, 2016, net cash provided by financing activities of $2.8 billion was primarily attributable to higher levels of total deposits and the issuance of the Series D preferred stock, partially offset by the repurchase of common stock pursuant to the Corporation’s share repurchase program and cash dividends paid to common stockholders. The increase in total deposits was attributable to higher levels of demand and other noninterest-bearing client deposits.


21

ASSET QUALITY

Securities Portfolio
Northern Trust maintains a high quality debt securities portfolio, with 81%portfolio. Debt securities not explicitly rated were grouped where possible under the credit rating of the combinedissuer of the security. The following tables provide the fair value of available for sale (AFS) debt securities and amortized cost of held to maturity (HTM) debt securities by credit rating.
TABLE 24: FAIR VALUE OF AVAILABLE FOR SALE DEBT SECURITIES BY CREDIT RATING
JUNE 30, 2023
($ In Millions)AAAAAABBBNOT RATEDTOTAL
U.S. Government$2,843.9 $ $ $ $ $2,843.9 
Obligations of States and Political Subdivisions88.4 200.8    289.2 
Government Sponsored Agency11,349.0     11,349.0 
Non-U.S. Government251.5     251.5 
Corporate Debt89.9 114.3 239.1  17.6 460.9 
Covered Bonds319.8  21.2   341.0 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds2,203.0 447.2 267.8   2,918.0 
Other Asset-Backed4,909.6     4,909.6 
Commercial Mortgage-Backed901.3     901.3 
Total$22,956.4 $762.3 $528.1 $ $17.6 $24,264.4 
Percent of Total95 %3 %2 % % %100 %
22

ASSET QUALITY (continued)
Securities Portfolio (continued)
DECEMBER 31, 2022
($ In Millions)AAAAAABBBNOT RATEDTOTAL
U.S. Government$2,747.4 $— $— $— $— $2,747.4 
Obligations of States and Political Subdivisions136.4 651.2 — — — 787.6 
Government Sponsored Agency11,545.2 — — — — 11,545.2 
Non-U.S. Government360.0 — — — — 360.0 
Corporate Debt302.5 462.6 938.7 19.6 24.2 1,747.6 
Covered Bonds367.0 — 21.7 — — 388.7 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds1,816.3 451.5 211.6 — — 2,479.4 
Other Asset-Backed5,256.2 — — — — 5,256.2 
Commercial Mortgage-Backed1,387.8 — — — — 1,387.8 
Total$23,918.8 $1,565.3 $1,172.0 $19.6 $24.2 $26,699.9 
Percent of Total90 %%%— %— %100 %
As of both June 30, 2023 and trading account portfolios at September 30, 2017, composedDecember 31, 2022, the less than 1% of U.S. Treasury and government sponsored agencyAFS debt securities and triple-Anot rated corporate notes, asset-backed securities, covered bonds, sub-sovereign, supranational, sovereign and non-U.S. agency bonds, commercial mortgage-backed securities and obligations of states and political subdivisions. The remaining portfolio was comprisedby Moody’s Investors Service, Inc. (Moody’s), S&P Global Ratings (S&P Global) or Fitch Ratings, Inc. (Fitch Ratings) consisted of corporate notes, asset-backeddebt securities.
TABLE 25: AMORTIZED COST OF HELD TO MATURITY DEBT SECURITIES BY CREDIT RATING
JUNE 30, 2023
($ In Millions)AAAAAABBBNOT RATEDTOTAL
Obligations of States and Political Subdivisions$932.1 $1,640.9 $ $ $ $2,573.0 
Government Sponsored Agency9,354.2     9,354.2 
Non-U.S. Government1,249.5 886.3 1,522.4 329.1  3,987.3 
Corporate Debt2.2 308.7 359.0   669.9 
Covered Bonds2,278.7     2,278.7 
Certificates of Deposit555.0    33.2 588.2 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds4,322.0 1,292.9 29.8 1.1  5,645.8 
Other Asset-Backed288.0     288.0 
Commercial Mortgage-Backed37.6     37.6 
Other64.1    519.5 583.6 
Total$19,083.4 $4,128.8 $1,911.2 $330.2 $552.7 $26,006.3 
Percent of Total74 %16 %7 %1 %2 %100 %
DECEMBER 31, 2022
(In Millions)AAAAAABBBNOT RATEDTOTAL
U.S. Government$50.0 $— $— $— $— $50.0 
Obligations of States and Political Subdivisions926.8 1,638.5 — — — 2,565.3 
Government Sponsored Agency9,407.7 — — — — 9,407.7 
Non-U.S. Government762.2 926.5 1,223.0 322.3 — 3,234.0 
Corporate Debt2.1 305.7 405.5 — — 713.3 
Covered Bonds2,530.3 — — — — 2,530.3 
Certificates of Deposit— — — — 35.9 35.9 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds4,171.3 1,502.0 28.9 1.1 — 5,703.3 
Other Asset-Backed263.7 — — — — 263.7 
Other65.8 — — — 466.8 532.6 
Total$18,179.9 $4,372.7 $1,657.4 $323.4 $502.7 $25,036.1 
Percent of Total73 %17 %%%%100 %
As of both June 30, 2023 and December 31, 2022, the 2% of HTM debt securities negotiablenot rated by Moody’s, S&P Global or Fitch Ratings consisted of certificates of deposit with a remaining life of less than six months, as well as investments purchased by Northern Trust to fulfill its obligations under the Community Reinvestment Act (CRA). Northern Trust fulfills its obligations under the CRA by making qualified investments for purposes of statessupporting institutions and political subdivisions, auction rate securities and other securities, of which as a percentage of the total securities portfolio, 10% was rated double-A, 3% was rated below double-A, and 6% was not rated by Standard and Poor’s or Moody’s Investors Service (primarily negotiable certificates of deposits of banks and non-U.S. sovereign securities whose long term ratings are at least A).programs that benefit low-to-moderate income communities within Northern Trust’s market area.
Net unrealized losses within the investment securities portfolio totaled $56.4 million$3.2 billion at Septemberboth June 30, 2017, compared to net unrealized losses of $68.1 million as of2023 and December 31, 2016.2022. Net unrealized losses as of Septemberboth June 30, 20172023 and December 31, 2022 were comprised of $103.3$9.1 million and $159.7 million$3.2 billion of
23

ASSET QUALITY (continued)
Securities Portfolio (continued)
gross unrealized gains and losses, respectively. Of$931.3 million of the $3.2 billion gross unrealized losses onrelate to AFS debt securities at Septemberas of June 30, 2017,2023, and $1.1 billion of the largest component was $61.7$3.2 billion gross unrealized losses relate to AFS debt securities as of December 31, 2022.
As of June 30, 2023, the $24.3 billion AFS debt securities portfolio had unrealized losses of $311.3 million, $226.2 million, and $142.6 million related to government-sponsored agency securities, other asset-backed and sub-sovereign, supranational and non-U.S. agency bonds respectively, which are primarily attributable to changes in overall market interest rates. As of December 31, 2022, the $26.7 billion AFS debt securities portfolio had unrealized losses of $351.6 million, $288.1 million, and $157.6 million related to government sponsored agency, securitiesother asset-backed, and sub-sovereign, supranational and non-U.S. agency bonds, respectively, which were primarily attributable to changes in overall market interest rates and credit spreads since their purchase. $37.3
As of December 31, 2022, the Corporation intended to sell certain AFS debt securities that were in an unrealized loss position. The securities were written down to their fair value of $2.1 billion with a $213.0 million loss recognized in Investment Security Gains (Losses), net on the consolidated statements of income for the period ended December 31, 2022. In January 2023, the securities were subsequently sold resulting in an incremental $6.9 million gain upon sale as compared to the fair value recorded on the consolidated balance sheets at December 31, 2022.
As of June 30, 2023, the $26.0 billion HTM debt securities portfolio had unrealized losses in securities classified as “other”of $1.1 billion and $491.8 million related to government-sponsored agency securities and sub-sovereign, supranational and non-U.S. agency bonds, respectively, which are primarily purchased at a premium or par byattributable to changes in overall market interest rates. As of December 31, 2022, the $25.0 billion HTM debt securities portfolio had an unrealized loss of $1.1 billion and $436.1 million related to government-sponsored agency and sub-sovereign, supranational and non-U.S. agency bonds, respectively, which were primarily attributable to changes in overall market interest rates and credit spreads since their purchase.
HTM debt securities consist of securities that management intends to, and Northern Trust has the ability to, fulfill its obligation under the Community Reinvestment Act (CRA). Unrealized losses on these CRA-related securities were attributable to yields that were below market rates for the purpose of supporting institutions and programs that benefit low- to moderate-income communities within Northern Trust’s market area. Also, $16.6 million of the unrealized losses related to corporate debt securities, primarily reflecting widened credit spreads and higher market rates since purchase. As of September 30, 2017, 37% of the corporate debt portfolio was backed by guarantees provided by U.S. and non-U.S. governmental entities.hold until maturity.
For the nine months ended September 30, 2017, charges of $0.1 million were recordedadditional information relating to the other-than-temporary impairment (OTTI) of certain CRA eligible securities. There were $2.4 million OTTI losses forsecurities portfolio, refer to Note 4—Securities to the nine months ended September 30, 2016. Northern Trust has evaluated all securities with unrealized losses for possible OTTIconsolidated financial statements provided in accordance with GAAP and Northern Trust’s security impairment review policy.Item 1. Consolidated Financial Statements (unaudited).
Northern Trust participates in the repurchase agreement market as a relatively low cost alternative for short-term funding. Securities purchased under agreements to resell and securities sold under agreements to repurchase are accounted for as collateralized financings and recorded at the amounts at which the securities were acquired or sold plus accrued interest. To minimize potential credit risk associated with these transactions, the fair value of the securities purchased or sold is monitored, limits are set on exposure with counterparties, and the financial condition of counterparties is regularly assessed. It is Northern Trust’s policy to take possession, either directly or via third-party custodians, of securities purchased under agreements to resell. Securities sold under agreements to repurchase are held by the counterparty until their repurchase.
For additional information relating to the securities sold under agreements to repurchase, refer to Note 22—Securities Sold Under Agreements to Repurchase to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited).
Nonperforming
Nonaccrual Loans and Leases and Other Real Estate Owned
NonperformingNonaccrual assets consist of nonperformingnonaccrual loans and leases and other real estate owned (OREO). OREO is comprised of commercial and residential properties acquired in partial or total satisfaction of loans.

22

ASSET QUALITY (continued)
Nonperforming Loans and Leases and Other Real Estate Owned (continued)

The following table provides the amounts of nonperformingnonaccrual loans, and leases, by loan and lease segment and class, and of OREO that were outstanding at the dates shown, as well as the balance of loans that waswere delinquent 90 days or more and still accruing interest. The balance of loansLoans that are delinquent 90 days or more and still accruing interest can fluctuate widely based on the timing of cash collections, renegotiationsrenegotiation and renewals.
Effective for the period ended
24

ASSET QUALITY (continued)
Nonaccrual Loans and Other Real Estate Owned (continued)
TABLE 26: NONACCRUAL ASSETS
JUNE 30, 2023DECEMBER 31, 2022
($ In Millions)AMOUNT% OF NONACCRUAL LOANS TO TOTAL NONACCRUAL LOANSAMOUNT% OF NONACCRUAL LOANS TO TOTAL NONACCRUAL LOANS
Nonaccrual Loans
Commercial
Commercial and Institutional$16.4 35 %$17.4 38 %
Commercial Real Estate3.8 8 10.2 22 
Total Commercial$20.2 43 %$27.6 60 %
Personal
Private Client$2.0 4 %$— — %
Residential Real Estate24.9 53 18.3 40 
Total Personal$26.9 57 %$18.3 40 %
Total Nonaccrual Loans47.1 45.9 
Other Real Estate Owned0.3 — 
Total Nonaccrual Assets$47.4 $45.9 
90 Day Past Due Loans Still Accruing$15.2 $54.2 
Nonaccrual Loans to Total Loans0.11 %0.11 %
Allowance for Credit Losses Assigned to Loans to Nonaccrual Loans3.2 x3.1 x
Nonaccrual assets of $47.4 million as of June 30, 2017,2023 increased slightly from December 31, 2022, primarily due to the Corporation implementedaddition of six new nonaccrual loans, partially offset by a change in the classificationcommercial real estate upgrade and a commercial real estate charge-off. The six new nonaccrual loans were composed of certain nonperforming loans and leases to enhance the consistency of its reporting across various regulatory regimes. As a result, prior-period balances below have been adjusted to conform with current-period presentation. These adjustments generally reflect reclassification of nonperforming loans and leases from thethree residential real estate, one commercial and institutional, class to the residential real estate class. There was no impact on total nonperforming loansone private client and leases previously reported.
Table 24: Nonperforming Assets
($ In Millions)September 30, 2017 June 30, 2017 September 30, 2016
Nonperforming Loans and Leases     
Commercial     
Commercial and Institutional$8.8
 $21.6
 $36.7
Commercial Real Estate8.3
 8.6
 11.8
Total Commercial17.1
 30.2
 48.5
Personal     
Residential Real Estate120.1
 128.7
 122.6
Private Client0.1
 0.1
 2.2
Total Personal120.2
 128.8
 124.8
Total Nonperforming Loans and Leases137.3
 159.0
 173.3
Other Real Estate Owned8.2
 7.7
 7.7
Total Nonperforming Assets145.5
 166.7
 181.0
90 Day Past Due Loans Still Accruing$8.7
 $64.6
 $12.5
Nonperforming Loans and Leases to Total Loans and Leases0.41% 0.47% 0.52%
Coverage of Loan and Lease Allowance to
Nonperforming Loans and Leases
1.1x 1.0x 1.1x
Nonperforming assets of $145.5 million as of September 30, 2017, primarily reflected decreases within the commercial and institutional andone commercial real estate portfolios as a result of payments and charge-offs, partially offset by new nonperforming assets as compared to the prior year.loan. In addition to the negative impact on net interest incomeNet Interest Income and the risk of credit losses, nonperformingnonaccrual assets also increase operating costs due to the expense associated with collection efforts. Changes in the level of nonperformingnonaccrual assets may be indicative of changes in the credit quality of one or more loan classes. Changes in credit quality impact the allowance for credit losses through the resultant adjustment of the specific allowance evaluated on an individual basis and of the quantitative and qualitative factors used in the determination of the inherent allowance levelsevaluated on a collective basis within the allowance for credit losses.
Northern Trust’s underwriting standardscredit policies do not allow for the origination of loan types generally considered to be high risk in nature, such as option adjustable rate mortgages,mortgage loans, subprime loans, loans with initial “teaser” rates and loans with excessively high loan-to-value ratios. Residential real estate loans consist of first lien mortgages and equity credit lines, which generally require a loan-to-collateral valuesvalue of no more than 65% to 80% at inception. RevaluationsAppraisals of supporting collateral for residential real estate loans are obtained at loan origination and upon refinancing or default or when otherwise considered warranted. Collateral revaluations for mortgagesResidential real estate collateral appraisals are performed and reviewed by independent third parties.
The commercial real estate classportfolio consists of commercial mortgages and construction, acquisition and development loans extended primarily to experienced investors well known to Northern Trust. Underwriting standards generally reflect conservative loan-to-value ratios and debt service coverage requirements. Recourse to borrowersowners through guarantees also is also commonly required. For additional information relating to the loans portfolio, refer to Note 5—Loans to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited).

23

ASSET QUALITY (continued)
Provision and Allowance for Credit Losses

The provisionallowance for credit losses—which represents management’s best estimate of lifetime expected credit losses is the chargerelated to current-period earnings that various portfolios subject to credit risk, off-balance-sheet credit exposure, and specific borrower relationships—is determined by management through a disciplined credit review process, to be the amount needed to maintain the allowance forprocess. Northern Trust measures expected credit losses at an appropriate level to absorb probable credit losses that have been identifiedof financial assets with specific borrower relationships (specific loss component)similar risk characteristics on a collective basis. A financial asset is measured individually if it does not share similar risk characteristics with other financial assets and for probable losses that are believed to be inherent in the loan and lease portfolios, undrawn commitments and standby letters of credit (inherent loss component). Control processes and analyses employed to evaluate the appropriateness of the allowance for credit losses are reviewed on at least an annual basis and modified as necessary.
The amount of specificrelated allowance is determined through an individual evaluationevaluation.
Management’s estimates utilized in establishing an appropriate level of loansallowance for credit losses are not dependent on any single assumption. In determining an appropriate allowance level, management evaluates numerous variables, many of which are interrelated or dependent on other assumptions and lending-related commitments considered impaired that is based on expected future cash flows, collateral valueestimates, and other factors that may impact the borrower’s ability to pay.takes into consideration past events, current conditions and reasonable and supportable forecasts. The inherent componentresults of the allowance addresses exposure relatingcredit reserve estimation methodology are reviewed quarterly by Northern Trust’s Credit Loss Reserve Committee, which receives input from Credit Risk Management, Treasury, Corporate Finance, the Economic Research Department, and each of Northern Trust’s reporting segments.
25

ASSET QUALITY (continued)
Allowance for Credit Losses (continued)
As of June 30, 2023, the Allowance for Credit Losses related to probable but unidentified credit-related losses. The inherent component of the allowance also covers the credit exposure associated withloans, undrawn loan commitments and standby letters of credit. To estimatecredit, HTM debt securities, and other financial assets, was $152.5 million, $26.0 million, $16.7 million, and $1.0 million, respectively. As of December 31, 2022, the Allowance for Credit Losses related to loans, undrawn loan commitments and standby letters of credit, HTM debt securities, and other financial assets, was $144.3 million, $38.5 million, $16.0 million, and $0.8 million, respectively. There was a $1.3 million allowance for credit losses related to AFS debt securities as of both June 30, 2023 and December 31, 2022. For additional information relating to the allowance for credit losses on these instruments, management uses conversion rates to determine the estimated amount that will be drawn and assigns an allowance factor determined in accordance with the methodology utilized for outstanding loans.
The provision for credit losses was a credit of $7.0 million in the current quarter, compared to a credit of $3.0 million in the prior-year quarter. Net recoveries were $1.6 million, resulting from $5.1 million of recoveries and $3.5 million of charge-offs, compared to $0.8 million of net recoveries in the prior-year quarter, resulting from $3.8 million of recoveries and $3.0 million of charge-offs. Residential real estate loans accounted for 88% and 71% of total nonperforming loans and leases at September 30, 2017 and 2016, respectively.
Note 7 to the consolidated financial statements includes a table that details the changes in the allowance for credit losses during the three and ninesix months ended SeptemberJune 30, 20172023 and 2016June 30, 2022 due to charge-offs, recoveries and provisions for credit losses.

24

ASSET QUALITY (continued)
Provision and losses, refer to Note 6—Allowance for Credit Losses (continued)

to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited).
The following table shows the specific portion ofprovides the allowance evaluated on an individual and collective basis for the inherent portion of the allowance and its componentsloan portfolio by loan and lease segment and class.
Table 25: Allocation ofTABLE 27: ALLOCATION OF THE ALLOWANCE FOR CREDIT LOSSES FOR LOANS
JUNE 30, 2023DECEMBER 31, 2022
($ In Millions)ALLOWANCE AMOUNTPERCENT OF LOANS TO TOTAL LOANSALLOWANCE AMOUNTPERCENT OF LOANS TO TOTAL LOANS
Evaluated on an Individual Basis$11.0  %$10.4 — %
Evaluated on a Collective Basis
Commercial
Commercial and Institutional47.1 28 57.0 29 
Commercial Real Estate88.6 11 76.5 11 
Non-U.S.2.6 7 8.3 
Other 5 0.3 
Total Commercial138.3 51 142.1 50 
Personal
Private Client10.4 32 11.2 33 
Residential Real Estate17.9 15 18.0 15 
Non-U.S.0.9 1 1.1 
Other 1 — 
Total Personal29.2 49 30.3 50 
Total Allowance Evaluated on a Collective Basis$167.5 $172.4 
Total Allowance for Credit Losses$178.5 $182.8 
Allowance Assigned to
Loans$152.5 $144.3 
Undrawn Commitments and Standby Letters of Credit26.0 38.5 
Total Allowance for Credit Losses$178.5 $182.8 
Allowance Assigned to Loans to Total Loans0.35 %0.34 %
Commercial Real Estate Loans
The table below provides additional detail regarding commercial real estate loan types.
TABLE 28: COMMERCIAL REAL ESTATE LOANS
(In Millions)JUNE 30, 2023DECEMBER 31, 2022
Commercial Mortgages
Apartment/ Multi-family$1,531.1 $1,392.7 
Office1,023.6 1,054.0 
Industrial/ Warehouse609.6 596.2 
Retail607.0 572.2 
Other610.2 548.0 
Total Commercial Mortgages4,381.5 4,163.1 
Construction, Acquisition and Development Loans658.6 609.9 
Total Commercial Real Estate Loans$5,040.1 $4,773.0 
For an overall discussion on the loan portfolio and on the allowance, refer to Note 5—Loans and Note 6—Allowance for Credit Losses to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited).


26
 September 30, 2017 June 30, 2017 September 30, 2016
($ In Millions)
Allowance
Amount
 
Percent of
Loans to
Total
Loans
 
Allowance
Amount
 
Percent of
Loans to
Total
Loans
 
Allowance
Amount
 
Percent of
Loans to
Total
Loans
Specific Allowance$8.6
 % $8.7
 % $9.1
 %
Allocated Inherent Allowance           
Commercial           
Commercial and Institutional33.4
 28
 33.7
 27
 35.9
 27
Commercial Real Estate53.6
 11
 58.7
 11
 72.1
 12
Lease Financing, net0.3
 1
 
 1
 0.4
 1
Non-U.S.
 5
 
 6
 
 4
Other1.1
 1
 1.1
 1
 
 1
Total Commercial88.4
 46
 93.5
 46
 108.4
 45
Personal           
Residential Real Estate64.2
 22
 63.8
 23
 85.3
 25
Private Client9.9
 32
 10.7
 31
 19.8
 30
Other2.3
 
 2.1
 
 2.3
 
Total Personal76.4
 54
 76.6
 54
 107.4
 55
Total Allocated Inherent Allowance$164.8
 100% $170.1
 100% $215.8
 100%
Total Allowance for Credit Losses$173.4
   $178.8
   $224.9
  
Allowance Assigned to           
Loans and Leases$150.3
   $153.8
   $191.0
  
Undrawn Commitments and Standby Letters of Credit23.1
   25.0
   33.9
  
Total Allowance for Credit Losses$173.4
   $178.8
   $224.9
  
Allowance Assigned to Loans and Leases to Total Loans and Leases0.45%   0.46%   0.57%  

25

STATEMENTS OF CASH FLOWS
The following discusses the statement of cash flow activities for the six months ended June 30, 2023 and 2022.
TABLE 29: CASH FLOW ACTIVITY SUMMARY
SIX MONTHS ENDED JUNE 30,
(In Millions)20232022
Net cash provided by (used in):
Operating activities$(264.3)$(863.9)
Investing activities(431.4)25,225.8 
Financing activities1,071.7 (22,060.4)
Effect of Foreign Currency Exchange Rates on Cash(132.5)(238.5)
Change in Cash and Due from Banks$243.5 $2,063.0 
Operating Activities
Net cash used in operating activities of $264.3 million for the six months ended June 30, 2023, was primarily attributable to higher net collateral deposited with derivative counterparties, partially offset by period earnings and the impact of higher non-cash charges such as amortization and depreciation.
Net cash used in operating activities of $863.9 million for the six months ended June 30, 2022, was primarily attributable to higher net collateral deposited with derivative counterparties, partially offset by period earnings, the impact of higher non-cash charges such as amortization and depreciation, change in receivables and net changes in other operating activities.
Investing Activities
Net cash used in investing activities of $431.4 million for the six months ended June 30, 2023, was primarily attributable to increased levels of Federal Reserve and other central bank deposits and other net investing activities, partially offset by net proceeds associated with AFS debt securities.
Net cash provided by investing activities of $25.2 billion for the six months ended June 30, 2022, was primarily attributable to decreased levels of Federal Reserve and other central bank deposits.
Financing Activities
Net cash provided by financing activities of $1.1 billion for the six months ended June 30, 2023, was primarily attributable to increased levels of federal funds purchased and short-term other borrowings, partially offset by the decreased levels of total deposits. The decrease in total deposits was primarily attributable to lower levels of savings, money market and other interest-bearing deposits, and demand and other noninterest-bearing deposits.
Net cash used in financing activities of $22.1 billion for the six months ended June 30, 2022, was primarily attributable to the decreased levels of total deposits. The decrease in total deposits was primarily attributable to lower levels of non-U.S. office noninterest-bearing and interest-bearing deposits as well as savings, money market and other interest-bearing deposits.


CAPITAL RATIOS
The capital ratios of ContentsNorthern Trust Corporation and its principal subsidiary, The Northern Trust Company, remained strong at June 30, 2023, exceeding the requirements for classification as “well-capitalized” under applicable U.S. regulatory requirements.
MARKET Northern Trust is a Category II institution as defined by the Federal Reserve Board which requires us to adhere to stringent capital standards. In adhering to these standards, Northern Trust engages in a range of reporting and activities with regulators to affirm our financial strength and stability, including but not limited to, capital adequacy reporting that deducts any unrealized losses related to AFS securities from reported capital, and stringent, annual company-run and supervisory stress testing in the form of Comprehensive Capital Analysis and Review (CCAR) exercises, which confirms our ability to remain solvent under severely adverse market conditions.
The results of the 2023 Dodd-Frank Act Stress Test (DFAST), published by the Federal Reserve Board on June 28, 2023, resulted in Northern Trust’s stress capital buffer and effective Common Equity Tier 1 capital ratio minimum requirement remaining constant at 2.5% and 7.0%, respectively, for the annual capital plan cycle beginning on October 1, 2023 through September 30, 2024.
The table below provides capital ratios, as well as the required minimum capital ratios, for Northern Trust Corporation and The Northern Trust Company determined by Basel III phased-in requirements.
TABLE 30: REGULATORY CAPITAL RATIOS
Capital Ratios —
Northern Trust Corporation
JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022
STANDARDIZED APPROACHADVANCED APPROACHSTANDARDIZED APPROACHADVANCED APPROACHSTANDARDIZED APPROACHADVANCED APPROACHWELL-CAPITALIZED RATIOSMINIMUM CAPITAL RATIOS
Common Equity Tier 1 Capital11.3 %13.0 %11.3 %11.7 %10.5 %11.6 %N/A4.5 %
Tier 1 Capital12.3 14.1 12.3 12.7 11.5 12.7 6.06.0 
Total Capital14.4 16.3 14.4 14.7 12.6 13.7 10.08.0 
Tier 1 Leverage7.4 7.4 7.3 7.3 6.7 6.7 N/A4.0 
Supplementary LeverageN/A8.3 N/A8.3 N/A7.6 N/A3.0 
Capital Ratios — The Northern Trust CompanyJUNE 30, 2023MARCH 31, 2023JUNE 30, 2022
STANDARDIZED APPROACHADVANCED APPROACHSTANDARDIZED APPROACHADVANCED APPROACHSTANDARDIZED APPROACHADVANCED APPROACHWELL-CAPITALIZED RATIOSMINIMUM CAPITAL RATIOS
Common Equity Tier 1 Capital12.1 %14.3 %12.3 %12.9 %11.0 %12.3 %6.5 %4.5 %
Tier 1 Capital12.1 14.3 12.3 12.9 11.0 12.3 8.0 6.0 
Total Capital13.9 16.2 14.2 14.6 11.9 13.1 10.0 8.0 
Tier 1 Leverage7.4 7.4 7.3 7.3 6.3 6.3 5.0 4.0 
Supplementary LeverageN/A8.2 N/A8.3 N/A7.2 3.0 3.0 



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RECENT ACCOUNTING PRONOUNCEMENTS AND DEVELOPMENTS
In March 2023, the Financial Accounting Standards Board (FASB) issued ASU No. 2023-02, “Investments—Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method—a consensus of the Emerging Issues Task Force” (ASU 2023-02). The amendments in ASU 2023-02 permit reporting entities to elect to account for their tax equity investments, regardless of the tax credit program from which the income tax credits are received, using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the income tax credits and other income tax benefits received and recognizes the net amortization and income tax credits and other income tax benefits in the income statement as a component of income tax expense (benefit). In addition, ASU 2023-02 requires specific disclosures that must be applied to all investments that generate income tax credits and other income tax benefits from a tax credit program for which the entity has elected to apply the proportional amortization method in accordance with Subtopic 323-740. ASU 2023-02 is effective for interim and annual periods beginning after December 15, 2023, although early adoption is permitted. Northern Trust is currently assessing the impacts of adoption of ASU 2023-02 on the consolidated financial condition and results of operations.
RISK MANAGEMENT

Liquidity Risk

Liquidity risk is the risk of not being able to raise sufficient funds or maintain collateral to meet balance sheet and contingent liability cash flow obligations when due, because of firm-specific or market-wide stress events. Northern Trust is a Category II institution as defined by the Federal Reserve Board which requires us to adhere to the same stringent liquidity standards as Category I institutions. In adhering to these standards, Northern Trust engages in a range of reporting and activities with regulators to affirm our financial strength and stability, including but not limited to, daily Liquidity Coverage Ratio and Net Stable Funding Ratio calculations to regulators.
We maintain a highly liquid balance sheet consisting principally of cash held at the Federal Reserve and other central banks, money market assets, and short-term investment securities, which were 64% and 63% of total assets as of June 30, 2023 and December 31, 2022, respectively. 84% and 81% of Northern Trust’s securities portfolio is composed of U.S. Treasury, government sponsored agency and triple-A rated securities as of June 30, 2023 and December 31, 2022, respectively.
Market Risk
There are two types of market risk, interest rate risk associated with the banking book and trading risk. Interest rate risk associated with the banking book is the potential for movements in interest rates to cause changes in net interest incomeNet Interest Income and the market value of equity.equity, including Accumulated Other Comprehensive Income (Loss) from the AFS debt securities portfolio. Trading risk is the potential for movements in market variables such as foreign exchange and interest rates to cause changes in the value of trading positions.
Northern Trust uses two primary measurement techniques to manage interest rate risk: Net Interest Income (NII) sensitivity and Market Value of Equity (MVE) sensitivity. Simulation of NII sensitivity provides management with a short-term view of the impact of interest rate changes on NII. Simulation of MVE sensitivity provides management with a long-term view of interest rate changes on MVE as ofbased on the period-end balance sheet. Both simulation models use the same initial marketHigher interest rates and product balances.may impact the fair value of AFS debt securities which in turn affects Accumulated Other Comprehensive Income (Loss), which can impact regulatory capital ratios.
As part of its risk management activities, Northern Trust also regularly measures daily the risk of loss associated with foreignall non-U.S. currency positions using a Value-at-Risk (VaR) model.model and applying the historical simulation methodology. The following information about Northern Trust’s management of market risk should be read in conjunction with theour Annual Report on Form 10-K for the year ended December 31, 2016.2022.
NII Sensitivity — The modeling of NII sensitivity incorporates on-balance-sheet positions, as well as derivative financial instruments (principally interest rate swaps) that are used to manage interest rate risk. Northern Trust uses market implied forward interest rates as the base case and measures the sensitivity (i.e., change) of a static balance sheet to changes in interest rates. Stress testing of interest rates is performed to include such scenarios as immediate parallel shocks to rates, nonparallel (i.e., twist) changes to yield curves that result in their becoming steeper or flatter, and changes to the relationship among the yield curves (i.e., basis risk).
The NII sensitivity analysis incorporates certain critical assumptions such as interest rates balance sheet changes, and client behaviors under changing rate environments. These assumptions are based on a combination of historical analysis and future expected pricing behavior. The simulation cannot precisely estimate NII sensitivity given uncertainty in the assumptions; therefore, there could be a change in NII sensitivity to the extent that actual behavior differs from that assumed.assumptions. The following key assumptions are incorporated into the simulation:


the balance sheet size and mix generally remains constant over the simulation horizon with maturing assets and liabilities replaced with instruments with similar terms as those that are maturing, with the exception of certain products such as securities (the assumed reinvestment of which is determined by management’s strategies); non-maturity deposits, of which some recent increases are assumed to be temporary in nature; and long-term fixed rate borrowings, which upon maturity are replaced with overnight wholesale instruments;
prepayments on mortgage loans and securities collateralized by mortgages are projected under each rate scenario using a third-party mortgage analytics system that incorporates market prepayment assumptions;
cash flows for structured securities are estimated using a third-party vendor in conjunction with the prepayments provided by the third-party mortgage analytics vendor;
non-maturity deposit pricing and lives are projected based on Northern Trust’s actual historical patterns and management judgment, depending upon the availability of historical data and current pricing strategies; and
new business rates are based on current spreads to market indices.
the balance sheet size and mix remains constant over the simulation horizon with maturing assets and liabilities replaced with instruments with similar terms as those that are maturing, with the exception of certain nonmaturity deposits that are considered short-term in nature and therefore receive a more conservative interest-bearing treatment;
prepayments on mortgage loans and securities collateralized by mortgages are projected under each rate scenario using a third-party mortgage analytics system that incorporates market prepayment assumptions;
29

RISK MANAGEMENT (continued)
Market Risk (continued)


cash flows for structured securities are estimated using a third-party vendor in conjunction with the prepayments provided by the third-party mortgage analytics vendor;
nonmaturity deposit pricing is projected based on Northern Trust’s actual historical patterns and management judgment, depending upon the availability of historical data and current pricing strategies/or judgment; and
new business rates are based on current spreads to market indices.
The following table shows the estimated NII impact over the next twelve months of 100 and 200 basis point ramps upward and 100 basis point ramp downward movements in interest rates relative to forward rates.rates as of June 30, 2023 and June 30, 2022. A 200 basis point ramp downward movement in interest rate relative to forward rate is also provided as of June 30, 2023. Each rate movement is assumed to occur gradually over a one-year period. Given the low level of interest rates at the simulation of NII fortime and assumed interest rate floors as rates 100 andapproach zero, the 200 basis points lowerpoint ramp downward movement in interest rate relative to forward rate as of June 30, 2022 would not provide meaningful results.results and is therefore not provided.
Table 26: Net Interest Income SensitivityTABLE 31: NET INTEREST INCOME SENSITIVITY
INCREASE (DECREASE) ESTIMATED IMPACT ON NEXT TWELVE MONTHS OF NET INTEREST INCOMEINCREASE (DECREASE) ESTIMATED IMPACT ON NEXT TWELVE MONTHS OF NET INTEREST INCOME
($ In Millions)
Increase/(Decrease)
Estimated Impact on
Next Twelve Months of
Net Interest Income
($ In Millions)JUNE 30, 2023JUNE 30, 2022
Increase in Interest Rates Above Market-Implied Forward Rates 
Increase in Interest Rates Above Market Implied Forward RatesIncrease in Interest Rates Above Market Implied Forward Rates
100 Basis Points$21
100 Basis Points$(40)$60 
200 Basis Points38
200 Basis Points(84)110 
Decrease in Interest Rates Below Market Implied Forward RatesDecrease in Interest Rates Below Market Implied Forward Rates
100 Basis Points100 Basis Points$37 $(7)
200 Basis Points200 Basis Points58 N/M
The NII sensitivity analysis does not incorporate anycertain management actions that may be used to mitigate negative consequencesadverse effects of actual interest rate movement. For that reason and others, theythe estimated impacts do not reflect the likely actual results but serve as conservative estimates of interest rate risk. NII sensitivity is not comparable to actual results disclosed elsewhere or directly predictive of future values of other measures provided.

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MARKET RISK MANAGEMENT (continued)


MVE Sensitivity — MVE is defined as the present value of assets minus the present value of liabilities, net of the value of instrumentsfinancial derivatives that are used to manage the interest rate risk of balance sheet items. The MVE looks at the whole balance sheet, which includes AFS debt securities, HTM debt securities, money market accounts, deposits, loans and wholesale borrowings. The potential effect of interest rate changes on MVE is derived from the impact of such changes on projected future cash flows and the present value of these cash flows and is then compared to the established limit. Northern Trust uses current market rates (and the future rates implied by these market rates) as the base case and measures MVE sensitivity under various rate scenarios. Stress testing of interest rates is performed to include such scenarios as immediate parallel shocks to rates, nonparallel (i.e., twist) changes to yield curves that result in their becoming steeper or flatter, and changes to the relationship among the yield curves (i.e., basis risk).
The MVE sensitivity analysis incorporates certain critical assumptions such as interest rates and client behaviors under changing rate environments. These assumptions are based on a combination of historical analysis and future expected pricing behavior. The simulation cannot precisely estimate MVE sensitivity given uncertainty in the assumptions; therefore, there could be a change in MVE sensitivity to the extent that actual behavior differs from the incorporated assumptions. Many of the assumptions that apply to NII sensitivity also apply to MVE sensitivity simulations, with the following separate key assumptions incorporated into the MVE simulation:


the present value of nonmaturity deposits are estimated using remaining lives, which are based on a combination of Northern Trust’s actual historical runoff patterns and management judgment — some balances are assumed to be core and have long lives while other balances are assumed to be temporary and have comparatively shorter lives; and
the present values of most noninterest-related balances (such as receivables, equipment, and payables) are the same as their book values.
the present value of nonmaturity deposits are estimated using dynamic decay methodologies or estimated remaining lives, which are based on a combination of Northern Trust’s actual historical runoff patterns and management judgment—some balances are assumed to be core and have longer lives while other balances are assumed to be temporary and have comparatively shorter lives;
the present values of most noninterest-related balances (such as receivables, equipment, and payables) are the same as their book values; and
Monte Carlo simulation is used to generate forward interest rate paths.
30

RISK MANAGEMENT (continued)
Market Risk (continued)


The following table shows the estimated impact on MVE of 100 and 200 basis point shocks up and a 100 and 200 basis point shock down from current market implied forward rates. Given the low level of interest rates at June 30, 2023 and December 31, 2022. Each rate movement is assumed interest rate floors as rates approach zero, the simulation of MVE for rates 100 or 200 basis points lower would not provide meaningful results.to occur gradually over a one-year period.
Table 27: Market Value of Equity Sensitivity as of September 30, 2017TABLE 32: MARKET VALUE OF EQUITY SENSITIVITY
INCREASE (DECREASE) ESTIMATED IMPACT ON MARKET VALUE OF EQUITYINCREASE (DECREASE) ESTIMATED IMPACT ON MARKET VALUE OF EQUITY
($ In Millions)
Increase/(Decrease)
Estimated Impact on
Market Value of Equity
($ In Millions)JUNE 30, 2023DECEMBER 31, 2022
Increase in Interest Rates Above Market Implied Forward Rates Increase in Interest Rates Above Market Implied Forward Rates
100 Basis Points$267
100 Basis Points$(622)$(472)
200 Basis Points280
200 Basis Points(1,294)(965)
Decrease in Interest Rates Below Market Implied Forward RatesDecrease in Interest Rates Below Market Implied Forward Rates
100 Basis Points100 Basis Points$686 $596 
200 Basis Points200 Basis Points1,219 842 
The MVE simulations do not incorporate anycertain management actions that may be used to mitigate negative consequencesadverse effects of actual interest rate movements. For that reason and others, theythe estimated impacts do not reflect the likely actual results but serve as conservative estimates of interest rate risk. MVE sensitivity is not comparable to actual results disclosed elsewhere or directly predictive of future values of other measures provided.
Foreign Currency Value-At-Risk (VaR) — Northern Trust measures daily the risk of loss associated with all non-U.S. currency positions using a VaR model and applying the historical simulation methodology. This statistical model provides estimates, based on a variety of high confidence levels, of the potential loss in value that might be incurred if an adverse shift in non-U.S. currency exchange rates and interest rates were to occur over a small number of days. The model incorporates foreign currency and interest rate volatilities and correlations in price movements among the currencies. VaR is computed for each trading desk and for the global portfolio.
Northern Trust monitors several variations of the global foreign exchange (GFX) VaR measures to meet specific regulatory and internal management needs. Variations include different methodologies (historical variance-covariancesimulation, Monte Carlo simulation and Monte Carlo)Taylor approximation), equally weighted and exponentially weighted volatilities, horizons of one day and ten days, confidence levels ranging fromof 95% to 99.95%and 99%, subcomponent VaRs using only foreign exchange (FX) drivers and only interest rate (IR) drivers, and look-back periods of one year, two years, and four years. Those alternative measures provide management an array of corroborating metrics and alternative perspectives on Northern Trust’s market risks.

27

TableDuring the three months ended June 30, 2023, Northern Trust did not incur an actual GFX trading loss in excess of Contents
MARKET RISK MANAGEMENT (continued)


the daily GFX VaR estimate.
The following table below presents the levels of total regulatory VaR and its subcomponents for global foreign currencyGFX in the yearsperiods indicated below, based on the historical simulation methodology, a 99% confidence level, a one-day horizon and equally weightedequally-weighted volatility. The total VaR for foreign currencyGFX is typically less than the sum of its two componentssubcomponents due to diversification benefits derived from the two subcomponents.
Table 28: Foreign Currency Value-At-RiskTABLE 33: GLOBAL FOREIGN CURRENCY VALUE-AT-RISK
($ In Millions)TOTAL VaR
(FX AND IR DRIVERS)
FX VaR
(FX DRIVERS ONLY)
IR VaR
(IR DRIVERS ONLY)
THREE MONTHS ENDEDJUNE 30, 2023MARCH 31, 2023JUNE 30, 2022JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022JUNE 30, 2023MARCH 31, 2023JUNE 30, 2022
High$0.7 $0.3 $0.2 $0.7 $0.2 $0.2 $0.3 $0.3 $0.2 
Low0.1 0.1 0.1  — —  0.1 — 
Average0.2 0.2 0.1 0.2 0.1 0.1 0.1 0.2 0.1 
Quarter-End0.3 0.2 0.1 0.4 0.2 0.1 0.2 0.1 0.1 
31
 Total VaR
(Spot and Forward)
 Foreign Exchange 
Spot VaR
 Foreign Exchange
Forward VaR
($ In Millions)September 30, 2017 June 30, 2017 September 30, 2017 June 30, 2017 September 30, 2017 June 30, 2017
High$0.9
 $1.2
 $0.3
 $0.4
 $0.9
 $1.2
Low0.2
 0.3
 
 
 0.2
 0.3
Average0.5
 0.8
 0.1
 0.1
 0.4
 0.7
Quarter-End0.3
 0.5
 0.2
 
 0.3
 0.5

RECONCILIATION OF CERTAIN REPORTED ITEMS TO FULLY TAXABLE EQUIVALENTSEQUIVALENT
The tables below present reconciliationsfollowing table presents a reconciliation of interest income, net interest income,Interest Income, Net Interest Income, net interest margin, and total revenue prepared in accordance with GAAP to such measures on an FTE basis, which are non-GAAP financial measures. Net interest margin is calculated by dividing annualized Net Interest Income by average interest-earning assets.Management believes this presentation provides a clearer indication of these financial measures for comparative purposes. When adjusted to an FTE basis, yields on taxable, nontaxable and partially taxable assets are comparable; however, the adjustment to an FTE basis has no impact on net income.Net Income.
Table 29: Reconciliation of Reported Revenue and Net Interest Income to Fully Taxable EquivalentTABLE 34: RECONCILIATION TO FULLY TAXABLE EQUIVALENT
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
($ In Millions)2023202220232022
Net Interest Income
Interest Income - GAAP$1,735.0 $524.8 $3,190.4 $908.3 
Add: FTE Adjustment13.1 11.1 26.3 17.8 
Interest Income (FTE) - Non-GAAP$1,748.1 $535.9 $3,216.7 $926.1 
Net Interest Income - GAAP$511.5 $458.7 $1,042.7 $839.7 
Add: FTE Adjustment13.1 11.1 26.3 17.8 
Net Interest Income (FTE) - Non-GAAP$524.6 $469.8 $1,069.0 $857.5 
 
Net Interest Margin - GAAP1.53 %1.31 %1.56 %1.17 %
Net Interest Margin (FTE) - Non-GAAP1.57 %1.35 %1.60 %1.19 %
Total Revenue
Total Revenue - GAAP$1,757.1 $1,768.7 $3,501.7 $3,487.4 
Add: FTE Adjustment13.1 11.1 26.3 17.8 
Total Revenue (FTE) - Non-GAAP$1,770.2 $1,779.8 $3,528.0 $3,505.2 




32
 Three Months Ended
 September 30, 2017 September 30, 2016
($ In Millions)Reported FTE Adj. FTE Reported FTE Adj. FTE
Interest Income$453.8
 $12.0
 $465.8
 $349.2
 $7.0
 $356.2
Interest Expense99.6
 
 99.6
 46.1
 
 46.1
Net Interest Income$354.2
 $12.0
 $366.2
 $303.1
 $7.0
 $310.1
Net Interest Margin1.25%   1.29% 1.12%   1.14%
            
Revenue$1,345.2
 $12.0
 $1,357.2
 1,213.7
 7.0
 1,220.7

 Nine Months Ended
 September 30, 2017 September 30, 2016
($ In Millions)Reported FTE Adj. FTE Reported FTE Adj. FTE
Interest Income$1,281.3
 $29.8
 $1,311.1
 $1,045.9
 $20.1
 $1,066.0
Interest Expense232.1
 
 232.1
 135.3
 
 135.3
Net Interest Income$1,049.2
 $29.8
 $1,079.0
 $910.6
 $20.1
 $930.7
Net Interest Margin1.27%   1.31% 1.14%   1.17%
            
Revenue$3,950.8
 $29.8
 $3,980.6
 $3,720.4
 $20.1
 $3,740.5
RECENT ACCOUNTING PRONOUNCEMENTS AND DEVELOPMENTS
In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” (ASU 2014-09). ASU 2014-09 is a converged standard between the FASB and the International Accounting Standards Board (IASB) that provides a single comprehensive revenue recognition model for all contracts with customers across transactions and industries. The primary objective of ASU 2014-09 is revenue recognition that represents the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 is effective for interim and annual reporting periods beginning after December 15, 2017. Northern Trust plans to adopt ASU 2014-09 as of January 1, 2018 using the modified retrospective method.

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RECENT ACCOUNTING PRONOUNCEMENTS AND DEVELOPMENTS (continued)

In 2016, Northern Trust focused efforts on its assessment project as well as an extensive contract review, covering services offered in each of its respective locations throughout the world. Northern Trust recognizes the majority of its revenues “over time” under current policy and expects to continue this practice upon adoption of ASU 2014-09. ASU 2014-09 is not expected to require significant changes to revenue-related information technology applications. Northern Trust is currently developing detailed disclosures required by ASU 2014-09. Further, Northern Trust assessed the extent of changes to the control environment and is in the process of designing additional controls around contract inception and initial contract analysis. Northern Trust is substantially complete with its implementation project but will continue to evaluate certain aspects of ASU 2014-09 such as agent vs. principal considerations. ASU 2014-09 is not expected to impact significantly Northern Trust’s consolidated financial condition or results of operations.
In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities” (ASU 2016-01). ASU 2016-01 requires equity investments (except those accounted for under the equity method or those that result in consolidation) to be measured at fair value with changes in fair value recognized in net income unless a policy election is made for investments without readily determinable fair values. Additionally, ASU 2016-01 requires public entities to use the exit price notion when measuring the fair value of financial instruments for measurement purposes and eliminates the requirement to disclose the method(s) and significant assumptions used to estimate the fair value of financial instruments measured at amortized cost on the balance sheet. Furthermore, it requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or the accompanying notes to the financial statements. ASU 2016-01 is effective for interim and annual periods beginning after December 15, 2017. Although Northern Trust is currently assessing the impact of ASU 2016-01, it is not expected to impact significantly Northern Trust’s consolidated financial condition or results of operations.
In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842)” (ASU 2016-02). ASU 2016-02 introduces a lessee model that brings most leases on the balance sheet, with certain specified scope exceptions. Specifically within the lessee model under ASU 2016-02, a lessee is required to recognize in the statement of financial position a liability to make lease payments, known as the lease liability, and a right-of-use asset representing its right to use the underlying asset over the lease term. ASU 2016-02 is effective for interim and annual reporting periods beginning after December 15, 2018, although early adoption is permitted. Northern Trust is currently establishing an overall governance structure and a detailed project plan for its implementation efforts, along with defining the future operating model for lease accounting and administration. Further, Northern Trust is completing its inventory of leases within the scope of ASU 2016-02 and continues to assess the impact of adoption of ASU 2016-02.
In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (ASU 2016-13). ASU 2016-13 significantly changes the way impairment of financial instruments is recognized by requiring immediate recognition of estimated credit losses expected to occur over the remaining life of financial instruments. The main provisions of ASU 2016-13 include (1) replacing the “incurred loss” approach under current GAAP with an “expected loss” model for instruments measured at amortized cost, (2) requiring entities to record an allowance for available-for-sale debt securities rather than reduce the carrying amount of the investments, as is required by the other-than-temporary-impairment model under current GAAP, and (3) a simplified accounting model for purchased credit-impaired debt securities and loans. ASU 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019, although early adoption is permitted.
Northern Trust has established a working group across various functions, an overall governance structure, and is currently finalizing a detailed project plan for its implementation efforts. Further, Northern Trust is assessing its current inventory of underlying credit models and the suitability of these models for the overall expected loss impairment model under ASU 2016-13. Northern Trust continues to evaluate specific application issues and the overall impact of the adoption of ASU 2016-13.
In March 2017, the FASB issued ASU No. 2017-08, “Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Securities” (ASU 2017-08), which amends the amortization period for certain callable debt securities held at a premium and shortens the amortization period for the premium to the earliest call date. ASU 2017-08 is effective for interim and annual reporting periods beginning after December 15, 2018, although early adoption is permitted. Northern Trust is currently assessing the impact of adoption of ASU 2017-08.

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RECENT ACCOUNTING PRONOUNCEMENTS AND DEVELOPMENTS (continued)

In August 2017, the FASB issued ASU No. 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities” (ASU 2017-12). The main provisions of ASU 2017-12 better align an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships. ASU 2017-12 eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item. Further, ASU 2017-12 eases certain documentation and assessment requirements and modifies the accounting for components excluded from the assessment of hedge effectiveness. ASU 2017-12 is effective for interim and annual reporting periods beginning after December 15, 2018, although early adoption is permitted. Northern Trust is currently assessing the impact of adoption of ASU 2017-12.

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FORWARD-LOOKING STATEMENTS



This report may include statements which constitute “forward-looking statements” within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are identified typically by words or phrases such as “believe,” “expect,” “anticipate,” “intend,” “estimate,” “project,” “likely,” “plan,” “goal,” “target,” “strategy,” and similar expressions or future or conditional verbs such as “may,” “will,” “should,” “would,” and “could.” Forward-looking statements include statements, other than those related to historical facts, that relate to Northern Trust’s financial results and outlook; capital adequacy; dividend policy and share repurchase program; accounting estimates and assumptions; credit quality including allowance levels; future pension plan contributions; effective tax rate; anticipated expense levels, including related to technology and regulatory initiatives;levels; contingent liabilities; acquisitions; strategies; market and industry trends; and expectations regarding the impact of recent legislationaccounting pronouncements and accounting pronouncements.legislation. These statements are based on Northern Trust’s current beliefs and expectations of future events or future results, and involve risks and uncertainties that are difficult to predict and subject to change. These statements are also based on assumptions about many important factors, including:

financial market disruptions or economic recession whether in the United States Europe, the Middle East, Asia or other regions;countries across the globe resulting from any of a number of factors;
volatility or changes in financial markets, including debt and equity markets, that impact the value, liquidity, or credit ratings of financial assets in general, or financial assets held in particular investment funds or client portfolios, including those funds, portfolios, and other financial assets with respect to which Northern Trust has taken, or may in the future take, actions to provide asset value stability or additional liquidity;
the impact of equity markets on fee revenue;
changes in interest rates or in the monetary or other policies of various regulatory authorities or central banks;
Northern Trust’s success in controlling the costs and expenses of its business operations and the impacts of any broader inflationary environment thereon;
Federal Deposit Insurance Corporation (FDIC) assessments to recover losses to the Deposit Insurance Fund in connection with bank closures;
a decline in the value of securities held in Northern Trust’s investment portfolio, the liquidity and pricing of which may be negatively impacted by periods of economic turmoil and financial market disruptions;
Northern Trust’s ability to address operating risks, including those related to cybersecurity, data security, human errors or omissions, pricing or valuation of securities, fraud, operational resilience (including systems performance), failure to maintain sustainable business practices, and breakdowns in processes or internal controls;
Northern Trust's success in responding to and investing in changes and advancements in technology;
geopolitical risks, risks related to global climate change and the risks of extraordinary events such as pandemics, natural disasters, terrorist events and war (including the continuing military conflict involving Ukraine and the Russian Federation), and the responses of the United States and other countries to those events;
the effectiveness of Northern Trust’s management of its human capital, including its success in recruiting and retaining necessary and diverse personnel to support business growth and expansion and maintain sufficient expertise to support increasingly complex products and services;
changes in the legal, regulatory and enforcement framework and oversight applicable to financial institutions, including Northern Trust;
the downgrade of U.S. government-issued and other securities;
changes in foreign exchange trading client volumes and volatility in foreign currency exchange rates, changes in the valuation of the U.S. dollar relative to other currencies in which Northern Trust records revenue or accrues expenses, and Northern Trust’s success in assessing and mitigating the risks arising from all such changes and volatility;
a decline in the value of securities held in Northern Trust’s investment portfolio, particularly asset-backed securities, the liquidity and pricing of which may be negatively impacted by periods of economic turmoil and financial market disruptions;
Northern Trust’s ability to address operating risks, including cyber-security or data security breach risks, human errors or omissions, pricing or valuation of securities, fraud, systems performance or defects, systems interruptions, and breakdowns in processes or internal controls;
Northern Trust’s success in responding to and investing in changes and advancements in technology;
a significant downgrade of any of Northern Trust’s debt ratings;
the health and soundness of the financial institutions and other counterparties with which Northern Trust conducts business;
uncertainties inherent in the complex and subjective judgments required to assess credit risk and establish appropriate allowances therefor;
the transition away from the London Interbank Offered Rate (LIBOR) or changes in the calculation of alternative interest rate benchmarks;
the pace and extent of continued globalization of investment activity and growth in worldwide financial assets;
changes in interest rates or in the monetary or other policies of various regulatory authorities or central banks;
changes in the legal, regulatory and enforcement framework and oversight applicable to financial institutions, including changes that may affect leverage limits and risk-based capital and liquidity requirements, require financial institutions to pay higher assessments, expose financial institutions to certain liabilities of their subsidiary depository institutions, or restrict or increase the regulation of certain activities carried on by financial institutions, including Northern Trust;
increased costs of compliance and other risks associated with changes in regulation, the current regulatory environment, and areas of increased regulatory emphasis and oversight in the United States and other countries, such as anti-money laundering, anti-bribery, and clientdata privacy;
failure to satisfy regulatory standards or to obtain regulatory approvals when required, including for the use and distribution of capital;
changes in tax laws, accounting requirements or interpretations and other legislation in the United States or other countries that could affect Northern Trust or its clients;
geopolitical risks and the risks of extraordinary events such as natural disasters, terrorist events and war, and the responses of the United States and other countries to those events;
the referendum held in the United Kingdom in which voters approved a departure from the European Union, commonly referred to as “Brexit,” and any effects thereof on global economic conditions, global financial markets, and our business and results of operations;
changes in the nature and activities of Northern Trust’s competition;
Northern Trust’s success in maintaining existing business and continuing to generate new business in existing and targeted markets and its ability to deploy deposits in a profitable manner consistent with its liquidity requirements;

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FORWARD-LOOKING STATEMENTS (continued)



Northern Trust’s ability to address the complex needs of a global client base and manage compliance with legal, tax, regulatory and other requirements;
Northern Trust’s ability to maintain a product mix that achieves acceptable margins;
Northern Trust’s ability to continue to generate investment results that satisfy clients and to develop an array of investment products;
Northern Trust’s success in recruiting and retaining the necessary personnel to support business growth and expansion and maintain sufficient expertise to support increasingly complex products and services;
Northern Trust’s success in implementing its expense management initiatives;
uncertainties inherent in Northern Trust’s assumptions concerning its pension plan, including discount rates and expected contributions, returns and payouts;
Northern Trust’s success in improvingcontinuing to enhance its risk management practices and controls and managing risks inherent in its businesses, including credit risk, operational risk, market and liquidity risk, fiduciary risk, compliance risk and strategic risk;
risks and uncertainties inherent in the litigation and regulatory process, including the possibility that losses may be in excess of Northern Trust’s recorded liability and estimated range of possible loss for litigation exposures;
risks associated with being a holding company, including Northern Trust’s dependence on dividends from its principal subsidiary;
the risk of damage to Northern Trust’s reputation which may undermine the confidence of clients, counterparties, rating agencies, and stockholders; and
other factors identified elsewhere in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2016,2022, including those factors described in Item 1A, “Risk Factors,” and other filings with the SEC, all of which are available on Northern Trust’s website.
Actual results may differ materially from those expressed or implied by the forward-looking statements. The information contained herein is current only as of the date of that information. All forward-looking statements included in this document are based upon information presently available, and Northern Trust assumes no obligation to update its forward-looking statements.

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Item 1. Consolidated Financial Statements (unaudited)



CONSOLIDATED BALANCE SHEETS (UNAUDITED)NORTHERN TRUST CORPORATION
(In Millions Except Share Information)September 30, 2017 December 31, 2016(In Millions Except Share Information)JUNE 30, 2023DECEMBER 31, 2022
(Unaudited)  
Assets   
ASSETSASSETS
Cash and Due from Banks$5,262.9
 $5,332.0
Cash and Due from Banks$4,897.7 $4,654.2 
Federal Reserve and Other Central Bank Deposits34,060.7
 26,674.2
Federal Reserve and Other Central Bank Deposits42,727.7 40,030.4 
Interest-Bearing Deposits with Banks5,684.4
 4,800.6
Interest-Bearing Deposits with Banks1,479.2 1,941.1 
Federal Funds Sold and Securities Purchased under Agreements to Resell1,670.8
 1,974.3
Securities   
Available for Sale33,844.9
 35,579.8
Held to Maturity (Fair value of $10,778.7 and $8,905.1)10,811.0
 8,921.1
Federal Funds SoldFederal Funds Sold 32.0 
Securities Purchased under Agreements to ResellSecurities Purchased under Agreements to Resell1,228.9 1,070.3 
Debt SecuritiesDebt Securities
Available for Sale (Amortized cost of $25,188.4 and $27,760.0)Available for Sale (Amortized cost of $25,188.4 and $27,760.0)24,264.4 26,699.9 
Held to Maturity (Fair value of $23,759.2 and $22,879.3)Held to Maturity (Fair value of $23,759.2 and $22,879.3)26,006.3 25,036.1 
Trading Account0.8
 0.3
Trading Account0.1 95.2 
Total Securities44,656.7
 44,501.2
Loans and Leases   
Total Debt SecuritiesTotal Debt Securities50,270.8 51,831.2 
LoansLoans
Commercial15,203.8
 15,666.7
Commercial22,361.2 21,635.6 
Personal18,132.3
 18,155.4
Personal21,185.5 21,257.7 
Total Loans and Leases (Net of unearned income of $36.3 and $41.2)33,336.1
 33,822.1
Allowance for Credit Losses Assigned to Loans and Leases(150.3) (161.0)
Total Loans (Net of unearned income of $6.1 and $9.0)Total Loans (Net of unearned income of $6.1 and $9.0)43,546.7 42,893.3 
Allowance for Credit LossesAllowance for Credit Losses(170.2)(161.1)
Buildings and Equipment462.5
 466.6
Buildings and Equipment473.6 500.5 
Client Security Settlement Receivables1,274.0
 1,043.7
Client Security Settlement Receivables431.3 1,698.3 
Goodwill526.5
 519.4
Goodwill698.8 691.3 
Other Assets4,615.9
 4,953.8
Other Assets11,168.0 9,855.2 
Total Assets$131,400.2
 $123,926.9
Total Assets$156,752.5 $155,036.7 
Liabilities   
LIABILITIESLIABILITIES
Deposits   Deposits
Demand and Other Noninterest-Bearing$17,402.9
 $22,190.4
Demand and Other Noninterest-Bearing$12,144.2 $16,582.7 
Savings, Money Market and Other Interest-Bearing16,042.2
 16,509.0
Savings, Money Market and Other Interest-Bearing23,535.5 31,128.6 
Savings Certificates and Other Time1,227.4
 1,331.7
Savings Certificates and Other Time3,327.0 1,981.3 
Non U.S. Offices — Noninterest-Bearing8,897.0
 7,972.5
Non U.S. Offices — Noninterest-Bearing9,182.2 8,757.6 
— Interest-Bearing62,241.1
 53,648.1
— Interest-Bearing65,014.7 65,481.9 
Total Deposits105,810.6
 101,651.7
Total Deposits113,203.6 123,932.1 
Federal Funds Purchased2,142.2
 204.8
Federal Funds Purchased9,344.5 1,896.9 
Securities Sold Under Agreements to Repurchase523.9
 473.7
Securities Sold Under Agreements to Repurchase988.1 567.2 
Other Borrowings6,052.3
 5,109.5
Other Borrowings12,382.0 7,592.3 
Senior Notes1,497.1
 1,496.6
Senior Notes2,729.5 2,724.2 
Long-Term Debt1,663.4
 1,330.9
Long-Term Debt2,061.5 2,066.2 
Floating Rate Capital Debt277.5
 277.4
Other Liabilities3,268.0
 3,611.9
Other Liabilities4,407.6 4,998.3 
Total Liabilities121,235.0
 114,156.5
Total Liabilities145,116.8 143,777.2 
Stockholders’ Equity   
STOCKHOLDERS' EQUITYSTOCKHOLDERS' EQUITY
Preferred Stock, No Par Value; Authorized 10,000,000 shares:   Preferred Stock, No Par Value; Authorized 10,000,000 shares:
Series C, outstanding shares of 16,000388.5
 388.5
Series D, outstanding shares of 5,000493.5
 493.5
Series D, outstanding shares of 5,000493.5 493.5 
Series E, outstanding shares of 16,000Series E, outstanding shares of 16,000391.4 391.4 
Common Stock, $1.66 2/3 Par Value; Authorized 560,000,000 shares;   Common Stock, $1.66 2/3 Par Value; Authorized 560,000,000 shares;
Outstanding shares of 227,421,128 and 228,605,485408.6
 408.6
Outstanding shares of 207,004,181 and 208,428,309Outstanding shares of 207,004,181 and 208,428,309408.6 408.6 
Additional Paid-In Capital1,037.5
 1,035.8
Additional Paid-In Capital980.0 983.5 
Retained Earnings9,431.2
 8,908.4
Retained Earnings14,127.6 13,798.5 
Accumulated Other Comprehensive Loss(335.1) (370.0)Accumulated Other Comprehensive Loss(1,405.9)(1,569.2)
Treasury Stock (17,750,396 and 16,566,039 shares, at cost)(1,259.0) (1,094.4)
Treasury Stock (38,167,343 and 36,743,215 shares, at cost)Treasury Stock (38,167,343 and 36,743,215 shares, at cost)(3,359.5)(3,246.8)
Total Stockholders’ Equity10,165.2
 9,770.4
Total Stockholders’ Equity11,635.7 11,259.5 
Total Liabilities and Stockholders’ Equity$131,400.2
 $123,926.9
Total Liabilities and Stockholders’ Equity$156,752.5 $155,036.7 
See accompanying notes to the consolidated financial statements.

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CONSOLIDATED STATEMENTS OF INCOME

(UNAUDITED)
NORTHERN TRUST CORPORATION
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions Except Share Information)2023202220232022
Noninterest Income
Trust, Investment and Other Servicing Fees$1,096.3 $1,143.4 $2,159.9 $2,311.8 
Foreign Exchange Trading Income50.1 77.6 103.1 158.5 
Treasury Management Fees7.9 10.6 16.3 21.7 
Security Commissions and Trading Income36.1 32.8 70.8 69.0 
Other Operating Income55.2 45.6 102.0 86.7 
Investment Security Gains (Losses), net — 6.9 — 
Total Noninterest Income1,245.6 1,310.0 2,459.0 2,647.7 
Net Interest Income
Interest Income1,735.0 524.8 3,190.4 908.3 
Interest Expense1,223.5 66.1 2,147.7 68.6 
Net Interest Income511.5 458.7 1,042.7 839.7 
(Release of) Provision for Credit Losses(15.5)4.5 (0.5)6.5 
Net Interest Income after Provision for Credit Losses527.0 454.2 1,043.2 833.2 
Noninterest Expense
Compensation604.5 546.5 1,199.7 1,110.4 
Employee Benefits101.4 119.6 202.4 223.9 
Outside Services230.9 213.1 441.7 426.5 
Equipment and Software229.3 203.5 461.0 397.0 
Occupancy53.8 51.0 115.1 102.1 
Other Operating Expense112.0 89.9 197.6 169.6 
Total Noninterest Expense1,331.9 1,223.6 2,617.5 2,429.5 
Income before Income Taxes440.7 540.6 884.7 1,051.4 
Provision for Income Taxes108.9 144.4 218.3 265.9 
Net Income$331.8 $396.2 $666.4 $785.5 
Preferred Stock Dividends4.7 4.7 20.9 20.9 
Net Income Applicable to Common Stock$327.1 $391.5 $645.5 $764.6 
Per Common Share
Net Income – Basic$1.56 $1.86 $3.07 $3.64 
– Diluted1.56 1.86 3.07 3.63 
Average Number of Common Shares Outstanding
– Basic207,638,671 208,383,991 207,911,242 208,205,469 
– Diluted207,816,015 208,878,350 208,270,677 208,843,934 
 Three Months Ended September 30, Nine Months Ended September 30,
(In Millions Except Share Information)2017 2016 2017 2016
Noninterest Income       
Trust, Investment and Other Servicing Fees$867.9
 $788.3
 $2,524.3
 $2,313.7
Foreign Exchange Trading Income49.1
 53.6
 147.1
 178.5
Treasury Management Fees13.2
 15.0
 42.8
 47.2
Security Commissions and Trading Income21.2
 20.4
 65.8
 59.9
Other Operating Income40.0
 33.1
 122.7

212.4
Investment Security Gains (Losses), net (Note)(0.4) 0.2
 (1.1) (1.9)
Total Noninterest Income991.0
 910.6
 2,901.6
 2,809.8
Net Interest Income       
Interest Income453.8
 349.2
 1,281.3
 1,045.9
Interest Expense99.6
 46.1
 232.1
 135.3
Net Interest Income354.2
 303.1
 1,049.2

910.6
Provision for Credit Losses(7.0) (3.0) (15.0) (4.0)
Net Interest Income after Provision for Credit Losses361.2
 306.1
 1,064.2

914.6
Noninterest Expense       
Compensation418.3
 382.1
 1,276.6
 1,150.4
Employee Benefits74.8
 73.2
 228.2
 216.0
Outside Services172.7
 157.6
 492.8
 466.5
Equipment and Software130.5
 114.5
 391.5
 346.7
Occupancy47.3
 44.2
 139.0
 130.4
Other Operating Expense92.0
 71.4
 239.4
 286.8
Total Noninterest Expense935.6
 843.0
 2,767.5
 2,596.8
Income before Income Taxes416.6
 373.7
 1,198.3
 1,127.6
Provision for Income Taxes118.2
 116.1
 355.9
 361.6
Net Income$298.4
 $257.6
 $842.4
 $766.0
Preferred Stock Dividends17.3
 5.9
 43.9
 17.6
Net Income Applicable to Common Stock$281.1
 $251.7
 $798.5

$748.4
Per Common Share       
Net Income — Basic$1.21
 $1.09
 $3.43
 $3.23
— Diluted1.20
 1.08
 3.41
 3.21
Average Number of Common Shares Outstanding
                     — Basic
228,010,866
 226,540,086
 228,751,804
 227,561,218
 — Diluted229,313,645
 228,055,195
 230,189,289
 229,040,618
        
Note:  Changes in Other-Than-Temporary-Impairment (OTTI) Losses$
 $
 $(0.1) $(2.4)
Other Security Gains (Losses), net(0.4) 0.2
 (1.0) 0.5
Investment Security Gains (Losses), net$(0.4) $0.2
 $(1.1) $(1.9)
CONSOLIDATED STATEMENTS OF
COMPREHENSIVE INCOME (UNAUDITED)
NORTHERN TRUST CORPORATION 
 Three Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Net Income$298.4
 $257.6
 $842.4
 $766.0
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)       
Net Unrealized (Losses) Gains on Securities Available for Sale(2.2) (13.9) 18.7
 94.3
Net Unrealized (Losses) Gains on Cash Flow Hedges(1.9) 
 (4.9) 6.6
Foreign Currency Translation Adjustments3.6
 (9.5) 10.5
 0.7
Pension and Other Postretirement Benefit Adjustments4.3
 3.3
 10.6
 11.4
Other Comprehensive Income3.8
 (20.1) 34.9
 113.0
Comprehensive Income$302.2
 $237.5
 $877.3
 $879.0
CONSOLIDATED STATEMENTS OF
COMPREHENSIVE INCOME (UNAUDITED)
NORTHERN TRUST CORPORATION
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions)2023202220232022
Net Income$331.8 $396.2 $666.4 $785.5 
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)
Net Unrealized Gains (Losses) on Available for Sale Debt Securities(42.0)(533.4)138.2 (1,401.8)
Net Unrealized Gains (Losses) on Cash Flow Hedges(0.6)4.4 (0.7)3.0 
Net Foreign Currency Adjustments1.9 (9.7)24.6 (17.6)
Net Pension and Other Postretirement Benefit Adjustments1.0 (64.9)1.2 (58.6)
Other Comprehensive Income (Loss)(39.7)(603.6)163.3 (1,475.0)
Comprehensive Income (Loss)$292.1 $(207.4)$829.7 $(689.5)
See accompanying notes to the consolidated financial statements.

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

(UNAUDITED)
NORTHERN TRUST CORPORATION
 Nine Months Ended September 30,
(In Millions)2017 2016
Preferred Stock   
Series C, Balance at January 1 and September 30$388.5
 $388.5
Series D, Balance at January 1 and September 30$493.5
 $493.5
Balance at September 30882.0
 882.0
Common Stock   
Balance at January 1 and September 30408.6
 408.6
Additional Paid-in Capital   
Balance at January 11,035.8
 1,072.3
Treasury Stock Transactions — Stock Options and Awards(104.8) (91.8)
Stock Options and Awards — Amortization106.5
 67.1
Stock Options and Awards — Tax Benefit
 (9.0)
Balance at September 301,037.5
 1,038.6
Retained Earnings   
Balance at January 18,908.4
 8,242.8
Net Income842.4
 766.0
Dividends Declared — Common Stock(275.7) (255.1)
Dividends Declared — Preferred Stock(43.9) (17.6)
Balance at September 309,431.2
 8,736.1
Accumulated Other Comprehensive Income (Loss)   
Balance at January 1(370.0) (372.7)
Net Unrealized Gains on Securities Available for Sale18.7
 94.3
Net Unrealized Gains (Losses) on Cash Flow Hedges(4.9) 6.6
Foreign Currency Translation Adjustments10.5
 0.7
Pension and Other Postretirement Benefit Adjustments10.6
 11.4
Balance at September 30(335.1) (259.7)
Treasury Stock   
Balance at January 1(1,094.4) (1,033.6)
Stock Options and Awards187.9
 153.9
Stock Purchased(352.5) (346.1)
Balance at September 30(1,259.0) (1,225.8)
Total Stockholders’ Equity at September 30$10,165.2
 $9,579.8

SIX MONTHS ENDED JUNE 30, 2023
(In Millions Except Per Share Information)PREFERRED STOCKCOMMON STOCKADDITIONAL PAID-IN CAPITALRETAINED EARNINGSACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)TREASURY STOCKTOTAL
Balance at December 31, 2022$884.9 $408.6 $983.5 $13,798.5 $(1,569.2)$(3,246.8)$11,259.5 
Net Income— — — 334.6 — — 334.6 
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)— — — — 203.0 — 203.0 
Dividends Declared:
Common Stock, $0.75 per share— — — (158.6)— — (158.6)
Preferred Stock— — — (16.2)— — (16.2)
Stock Awards and Options Exercised— — (19.0)— — 85.4 66.4 
Stock Purchased— — — — — (100.9)(100.9)
Balance at March 31, 2023$884.9 $408.6 $964.5 $13,958.3 $(1,366.2)$(3,262.3)$11,587.8 
Net Income   331.8   331.8 
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)    (39.7) (39.7)
Dividends Declared:
Common Stock, $0.75 per share   (157.8)  (157.8)
Preferred Stock   (4.7)  (4.7)
Stock Awards and Options Exercised  15.5   2.1 17.6 
Stock Purchased     (99.3)(99.3)
Balance at June 30, 2023$884.9 $408.6 $980.0 $14,127.6 $(1,405.9)$(3,359.5)$11,635.7 
See accompanying notes to the consolidated financial statements.

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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)NORTHERN TRUST CORPORATION
 Nine Months Ended September 30,
(In Millions)2017 2016
Cash Flows from Operating Activities:   
Net Income$842.4
 $766.0
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:   
Investment Security Losses, net1.1
 1.9
Amortization and Accretion of Securities and Unearned Income, net88.6
 65.6
Provision for Credit Losses(15.0) (4.0)
Depreciation on Buildings and Equipment73.8
 66.8
Amortization of Computer Software230.4
 203.6
Amortization of Intangibles7.0
 6.3
Pension Plan Contributions(11.5) (9.1)
Change in Receivables(135.1) (80.5)
Change in Interest Payable16.5
 0.7
Change in Collateral With Derivative Counterparties, net534.8
 (330.1)
Other Operating Activities, net(763.3) (15.7)
Net Cash Provided by Operating Activities869.7
 671.5
Cash Flows from Investing Activities:   
Net Change in Federal Funds Sold and Securities Purchased under Agreements to Resell336.3
 (445.2)
Change in Interest-Bearing Deposits with Banks(535.6) 1,136.3
Net Change in Federal Reserve and Other Central Bank Deposits(6,472.3) 789.7
Purchases of Securities — Held to Maturity(7,346.3) (5,757.3)
Proceeds from Maturity and Redemption of Securities — Held to Maturity7,180.1
 1,991.6
Purchases of Securities — Available for Sale(6,937.6) (11,081.1)
Proceeds from Sale, Maturity and Redemption of Securities — Available for Sale7,607.7
 7,548.0
Change in Loans and Leases710.7
 (239.3)
Purchases of Buildings and Equipment(63.7) (58.0)
Purchases and Development of Computer Software(288.2) (250.4)
Change in Client Security Settlement Receivables(220.4) 173.8
Acquisition of a Subsidiary, Net of Cash Received
 (16.9)
Other Investing Activities, net63.6
 956.1
Net Cash Used in Investing Activities(5,965.7) (5,252.7)
Cash Flows from Financing Activities:   
Change in Deposits2,082.4
 3,149.2
Change in Federal Funds Purchased1,937.3
 27.0
Change in Securities Sold under Agreements to Repurchase50.4
 (244.8)
Change in Short-Term Other Borrowings966.4
 (41.9)
Proceeds from Senior Notes and Long-Term Debt350.0
 
Repayments of Senior Notes and Long-Term Debt(7.0) (4.2)
Proceeds from Issuance of Preferred Stock - Series D
 493.5
Treasury Stock Purchased(352.5) (346.1)
Net Proceeds from Stock Options83.1
 62.0
Cash Dividends Paid on Common Stock(261.2) (246.9)
Cash Dividends Paid on Preferred Stock(32.4) (17.6)
Other Financing Activities, net0.1
 (8.7)
Net Cash Provided by Financing Activities4,816.6
 2,821.5
Effect of Foreign Currency Exchange Rates on Cash210.3
 233.9
Decrease in Cash and Due from Banks(69.1)
(1,525.8)
Cash and Due from Banks at Beginning of Year5,332.0
 6,418.5
Cash and Due from Banks at End of Period$5,262.9
 $4,892.7
Supplemental Disclosures of Cash Flow Information:   
Interest Paid$215.2
 $134.1
Income Taxes Paid348.9
 596.9
Transfers from Loans to OREO7.2
 12.0

SIX MONTHS ENDED JUNE 30, 2022
(In Millions Except Per Share Information)PREFERRED STOCKCOMMON STOCKADDITIONAL PAID-IN CAPITALRETAINED EARNINGSACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)TREASURY STOCKTOTAL
Balance at December 31, 2021$884.9 $408.6 $939.3 $13,117.3 $(35.6)$(3,297.7)$12,016.8 
Net Income— — — 389.3 — — 389.3 
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)— — — — (871.4)— (871.4)
Dividends Declared:
Common Stock, $0.70 per share— — — (147.8)— — (147.8)
Preferred Stock— — — (16.2)— — (16.2)
Stock Awards and Options Exercised— — (7.6)— — 80.5 72.9 
Stock Purchased— — — — — (33.8)(33.8)
Balance at March 31, 2022$884.9 $408.6 $931.7 $13,342.6 $(907.0)$(3,251.0)$11,409.8 
Net Income— — — 396.2 — — 396.2 
Other Comprehensive Income (Loss) (Net of Tax and Reclassifications)— — — — (603.6)— (603.6)
Dividends Declared:
Common Stock, $0.70 per share— — — (148.0)— — (148.0)
Preferred Stock— — — (4.7)— — (4.7)
Stock Awards and Options Exercised— — 19.4 — — 0.9 20.3 
Stock Purchased— — — — — (0.3)(0.3)
Balance at June 30, 2022$884.9 $408.6 $951.1 $13,586.1 $(1,510.6)$(3,250.4)$11,069.7 
See accompanying notes to the consolidated financial statements.

37






CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)NORTHERN TRUST CORPORATION
SIX MONTHS ENDED JUNE 30,
(In Millions)20232022
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income$666.4 $785.5 
Adjustments to Reconcile Net Income to Net Cash Used in Operating Activities
Investment Security Gains(6.9)— 
Amortization and Accretion of Securities and Unearned Income, net4.3 34.4 
Provision for Credit Losses(0.5)6.5 
Depreciation and Amortization308.1 264.5 
Pension Plan Contributions(16.5)(20.7)
Change in Receivables72.3 192.2 
Change in Interest Payable44.0 25.7 
Change in Collateral With Derivative Counterparties, net(1,215.5)(2,314.2)
Other Operating Activities, net(120.0)162.2 
Net Cash Used in Operating Activities(264.3)(863.9)
CASH FLOWS FROM INVESTING ACTIVITIES
Change in Federal Funds Sold(32.0)(10.0)
Change in Securities Purchased under Agreements to Resell(106.5)(503.1)
Change in Interest-Bearing Deposits with Banks480.1 (645.9)
Net Change in Federal Reserve and Other Central Bank Deposits(2,239.9)25,295.1 
Purchases of Held to Maturity Debt Securities(18,715.2)(21,034.6)
Proceeds from the Maturity and Redemption of Held to Maturity Debt Securities18,076.7 23,282.6 
Purchases of Available for Sale Debt Securities(2,336.0)(2,741.1)
Proceeds from the Maturity and Sales of Available for Sale Debt Securities4,938.7 3,646.9 
Change in Loans(643.2)(763.9)
Purchases of Buildings and Equipment(31.6)(47.2)
Purchases and Development of Computer Software(268.9)(270.0)
Change in Client Security Settlement Receivables1,269.6 (372.5)
Bank-Owned Life Insurance Policy Premiums (500.0)
Other Investing Activities, net(823.2)(110.5)
Net Cash (Used in) Provided by Investing Activities(431.4)25,225.8 
CASH FLOWS FROM FINANCING ACTIVITIES
Change in Deposits(11,053.6)(23,291.2)
Change in Federal Funds Purchased7,447.6 389.0 
Change in Securities Sold under Agreements to Repurchase420.8 267.5 
Change in Short-Term Other Borrowings4,788.4 (77.4)
Proceeds from Senior Notes 995.4 
Treasury Stock Purchased(200.2)(34.1)
Net Proceeds from Stock Options1.6 2.6 
Cash Dividends Paid on Common Stock(311.9)(291.5)
Cash Dividends Paid on Preferred Stock(20.9)(20.9)
Other Financing Activities, net(0.1)0.2 
Net Cash Provided by (Used in) Financing Activities1,071.7 (22,060.4)
Effect of Foreign Currency Exchange Rates on Cash(132.5)(238.5)
Change in Cash and Due from Banks243.5 2,063.0 
Cash and Due from Banks at Beginning of Period4,654.2 3,056.8 
Cash and Due from Banks at End of Period$4,897.7 $5,119.8 
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest Paid$2,103.1 $44.2 
Income Taxes Paid109.8 164.1 
Transfers from Loans to OREO0.2 0.1 
See accompanying notes to the consolidated financial statements.
36
38

Notes to Consolidated Financial Statements (unaudited)



Note 1 – Basis of Presentation
The consolidated financial statements include the accounts of Northern Trust Corporation (the Corporation)(Corporation) and its wholly-owned subsidiary, The Northern Trust Company (the Bank)(Bank), and various other wholly-owned subsidiaries of the Corporation and the Bank. Throughout the notes to the consolidated financial statements, the term “Northern Trust” refers to the Corporation and its subsidiaries. Intercompany balances and transactions have been eliminated in consolidation. The consolidated financial statements, as of and for the periods ended SeptemberJune 30, 20172023 and 2016,2022, have not been audited by the Corporation’s independent registered public accounting firm. In the opinion of management, all accounting entries and adjustments, including normal recurring accruals, necessary for a fair presentation of the financial position and the results of operations for the interim periods have been made. The accounting and financial reporting policies of Northern Trust conform to U.S. generally accepted accounting principles (GAAP) and reporting practices prescribed byfor the banking industry. The consolidated statements of income include results of acquired subsidiaries from the dates of acquisition. Certain amounts in prior periods have been reclassified to conform with the current year’s presentation. For a description of Northern Trust’s significant accounting policies, refer to Note 11—Summary of the Notes to ConsolidatedSignificant Accounting Policies included under Item 8. Financial Statements and Supplementary Data in the Annual Report on Form 10-K for the year ended December 31, 2016.2022.
Note 2 –Recent Accounting Pronouncements
On January 1, 2017, the Corporation2023, Northern Trust adopted ASU 2016-05,Accounting Standard Update (ASU) No. 2022-01, “Derivatives and Hedging (Topic 815): EffectsFair Value Hedging—Portfolio Layer Method” (ASU 2022-01). The amendments in ASU 2022-01 expand the current last-of-layer hedging model from a single-layer method to allow multiple hedged layers of Derivative Contract Novations on Existing Hedge Accounting Relationships (a consensusa single closed portfolio. To reflect that expansion, the last-of-layer method is renamed the portfolio layer method. In addition, ASU 2022-01 (1) expands the scope of the Emerging Issues Task Force)” (ASU 2016-05). ASU 2016-05 clarifies thatportfolio layer method to include non-prepayable assets, (2) specifies eligible hedging instruments in a changesingle-layer hedge, (3) provides additional guidance on the accounting for and disclosure of hedge basis adjustments under the portfolio layer method and (4) specifies how hedge basis adjustments should be considered when determining credit losses for the assets included in the counterparty to a derivative instrument that has been designated as the hedging instrument under Topic 815, does not, in and of itself, require dedesignation of that hedging relationship provided all other hedge accounting criteria continue to be met.closed portfolio. Upon adoption of ASU 2016-05, the Corporation did not dedesignate any hedging relationships due to change in counterparty and therefore2022-01, there was no impact to itsNorthern Trust’s consolidated financial conditionbalance sheets or resultsconsolidated statements of operations.income.

On January 1, 2017, the Corporation2023, Northern Trust adopted ASU 2016-06, “DerivativesNo. 2022-02, “Financial Instruments—Credit Losses (Topic 326): Troubled Debt Restructurings and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments (a consensus of the Emerging Issues Task Force)”Vintage Disclosures” (ASU 2016-06)2022-02). The amendments in ASU 2016-06 clarify what steps are required when assessing whether2022-02 eliminate the economic characteristicsaccounting guidance for troubled debt restructurings (TDRs) for creditors that have adopted the current expected credit losses accounting standard while enhancing disclosure requirements for certain loan refinancings and risksrestructurings made to borrowers experiencing financial difficulty. In addition, ASU 2022-02 requires that a public business entity disclose current-period gross charge-offs by year of call (put) options are clearlyorigination for financing receivables and closely relatednet investment in leases. Upon adoption of ASU 2022-02, there was no significant impact to the economic characteristics and risksNorthern Trust’s consolidated balance sheets or consolidated statements of their debt hosts, which is oneincome. Please refer to Note 5—Loans for further information.

On January 1, 2023, Northern Trust adopted ASU No. 2022-04, “Liabilities—Supplier Finance Programs (Topic 405-50): Disclosure of the criteria for bifurcating an embedded derivative.Supplier Finance Program Obligations” (ASU 2022-04). The Corporation currently applies the approach for analyzing potential embedded derivative instruments in debt instruments detailedamendments in ASU 2016-062022-04 enhance the transparency about the use of supplier finance programs for investors or other allocators of capital. Specifically, ASU 2022-04 requires that a buyer in a supplier finance program disclose sufficient qualitative and therefore uponquantitative information about the program to allow a user of financial statements to understand the program’s nature, activity during the period, changes from period to period, and potential magnitude. Upon adoption of ASU 2022-04, there was no impact to itsNorthern Trust’s consolidated financial conditionbalance sheets or resultsconsolidated statements of operations.income.
On January 1, 2017, the Corporation adopted ASU 2016-07, “Investments - Equity Method and Joint Ventures (Topic 323), Simplifying the Transition


39

Notes to the Equity Method of Accounting” (ASU 2016-07), which requires that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Upon adoption of ASU 2016-07, the Corporation did not hold an interest in an investee that subsequently qualified for the use of the equity method and therefore there was no impact to the Corporation’s consolidated financial condition or results of operations.Consolidated Financial Statements (unaudited) (continued)
On January 1, 2017, the Corporation adopted ASU 2016-17, “Consolidation (Topic 810): Interests Held through Related Parties That Are under Common Control” (ASU 2016-17). Under ASU 2016-17, a single decision maker evaluating whether it is the primary beneficiary of a variable interest entity will consider its indirect interests held by related parties that are under common control on a proportionate basis. Upon adoption of ASU 2016-17, there was no impact to the Corporation’s consolidated financial condition or results of operations.
Note 3 –Fair Value Measurements
Fair Value Hierarchy. The following describes the hierarchy of valuation inputs (Levels 1, 2, and 3) used to measure fair value and the primary valuation methodologies used by Northern Trust for financial instruments measured at fair value on a recurring basis. Observable inputs reflect market data obtained from sources independent of the reporting entity; unobservable inputs reflect the entity’s own assumptions about how market participants would value an asset or liability based on the best information available. GAAP requires an entity measuring fair value to maximize the use of observable inputs and minimize the use of unobservable inputs and establishes a fair value hierarchy of inputs. Financial instruments are categorized within the hierarchy based on the lowest level input that is significant to their valuation. Northern Trust’s policy is to recognizeNo transfers into and transfersor out of fair value levels as of the end of the reporting period in which the transfer occurred. No transfers between fair value levelsLevel 3 occurred during the ninesix months ended SeptemberJune 30, 20172023 or the year ended December 31, 2016.2022.

37

Notes to Consolidated Financial Statements (unaudited) (continued)

Level 1Quoted, active market prices for identical assets or liabilities.
Northern Trust’s Level 1 assets are comprised primarily of available for sale (AFS) investments in U.S. treasuryTreasury securities.
Level 2Observable inputs other than Level 1 prices, such as quoted active market prices for similar assets or liabilities, quoted prices for identical or similar assets in inactive markets, and model-derived valuations in which all significant inputs are observable in active markets.
Northern Trust’s Level 2 assets include available for saleAFS and certain trading account debt securities, the fair values of which are determined predominantly by external pricing vendors. Prices received from vendors are compared to other vendor and third-party prices. If a security price obtained from a pricing vendor is determined to exceed pre-determinedpredetermined tolerance levels that are assigned based on an asset type’s characteristics, the exception is researched and, if the price is not able to be validated, an alternate pricing vendor is utilized, consistent with Northern Trust’s pricing source hierarchy. As of SeptemberJune 30, 2017,2023, Northern Trust’s available for saleAFS debt securities portfolio included 1,4281,013 Level 2 debt securities with an aggregate market value of $28.1$21.4 billion. All 1,4281,013 debt securities were valued by external pricing vendors. As of December 31, 2016,2022, Northern Trust’s available for saleAFS debt securities portfolio included 1,4091,163 Level 2 debt securities with an aggregate market value of $28.1$24.0 billion. All 1,4091,163 debt securities were valued by external pricing vendors. Trading account securities, which totaled $0.8 million and $0.3 million as of September 30, 2017 and December 31, 2016, respectively, were all valued using external pricing vendors.
Level 2 assets and liabilities also include derivative contracts which are valued internally using widely accepted income-based models that incorporate inputs readily observable in actively quoted markets and reflect the contractual terms of the contracts. Observable inputs include foreign exchange rates and interest rates for foreign exchange contracts; interest rates for interest rate swap contracts and forward contracts; and interest rates and volatility inputs for interest rate option contracts. Northern Trust evaluates the impact of counterparty credit risk and its own credit risk on the valuation of its derivative instruments. Factors considered include the likelihood of default by Northern Trust and its counterparties, the remaining maturities of the instruments, net exposures after giving effect to master netting arrangements or similar agreements, available collateral, and other credit enhancements in determining the appropriate fair value of derivative instruments. The resulting valuation adjustments have not been considered material.
Level 3— Valuation techniques in which one or more significant inputs are unobservable in the marketplace.
Northern Trust’s Level 3 assets consist of auction rate securities purchased in 2008 from Northern Trust clients. To estimate the fair value of auction rate securities, Northern Trust uses external pricing vendors that incorporate transaction details and market- based inputs such as past auction results, trades and bids. The significant unobservable inputs used in the fair value measurement are the prices of the securities supported by little market activity and for which trading is limited.
Northern Trust’s Level 3 liabilities consist of swaps that Northern Trust entered into with the purchaser of 1.1 million and 1.0 million shares of Visa Inc. Class B common stock (Visa Class B common shares) previously held by Northern Trust and sold in June 2016 and 2015, respectively. Pursuant to the swaps, Northern Trust retains the risks associated with the ultimate conversion of the Visa Class B common shares into shares of Visa Inc. Class A common stock (Visa Class A common shares), such that the counterparty will be compensated for any dilutive adjustments to the conversion ratio and Northern Trust will be compensated for any anti-dilutive adjustments to the ratio. The swaps also require periodic payments from Northern Trust to the counterparty calculated by reference to the market price of Visa Class A common shares and a fixed rate of interest. The fair value of the swaps is determined using a discounted cash flow methodology. The significant unobservable inputs used in the fair value measurement are Northern Trust’s own assumptions about estimated changes in the conversion rate of the Visa Class B common shares into Visa Class A common shares, the date on which such conversion is expected to occur and the estimated growth rate of the Visa Class A common share price. See “Visa Class B Common Shares” under Note 19 — “Contingent Liabilities”20—Commitments and Contingent Liabilities for further information.
Northern Trust believes its valuation methods for its assets and liabilities carried at fair value are appropriate; however, the use of different methodologies or assumptions, particularly as applied to Level 3 assets and liabilities, could have a material effect on the computation of their estimated fair values.

38

Notes to Consolidated Financial Statements (unaudited) (continued)

The following table presents the fair values of Northern Trust’s Level 3 liabilities as of June 30, 2023 and December 31, 2022, as well as the valuation techniques, significant unobservable inputs, and quantitative information used to develop significant unobservable inputs for Northern Trust’s Level 3 assets andsuch liabilities as of September 30, 2017 and December 31, 2016.
Table 30: Level 3 Significant Unobservable Inputssuch dates.
40
 September 30, 2017
Financial InstrumentFair Value 
Valuation
Technique
 Unobservable Inputs Range of Inputs
Auction Rate Securities$4.1 million Comparables Price $8799
Swaps Related to Sale of Certain Visa Class B Common Shares$27.7 million Discounted Cash Flow Visa Class A Appreciation 7.0%11.0%
   Conversion Rate 1.63x1.65x
    Expected Duration 1.5
4.0 years
 December 31, 2016
Financial InstrumentFair Value 
Valuation
Technique
 Unobservable Inputs Range of Inputs
Auction Rate Securities$4.7 million Comparables Price $8499
Swap Related to Sale of Certain Visa Class B Common Shares$25.2 million Discounted Cash Flow Visa Class A Appreciation 7.0%11.0%
   Conversion Rate 1.63x1.65x
    Expected Duration 1.5
4.5 years


39

Notes to Consolidated Financial Statements (unaudited) (continued)

TABLE 35: LEVEL 3 SIGNIFICANT UNOBSERVABLE INPUTS
JUNE 30, 2023
FINANCIAL INSTRUMENTFAIR VALUEVALUATION TECHNIQUEUNOBSERVABLE INPUTSINPUT VALUES
WEIGHTED-AVERAGE INPUT VALUES(1)
Swaps Related to Sale of Certain Visa Class B Common Shares$36.4 millionDiscounted Cash FlowConversion Rate1.59x1.59x
Visa Class A Appreciation9.94%9.94%
Expected Duration12-33 months20 months
(1) Weighted average of expected duration based on scenario probability.
DECEMBER 31, 2022
FINANCIAL INSTRUMENTFAIR VALUEVALUATION TECHNIQUEUNOBSERVABLE INPUTSINPUT VALUES
WEIGHTED-AVERAGE INPUT VALUES(1)
Swaps Related to Sale of Certain Visa Class B Common Shares$34.8 millionDiscounted Cash FlowConversion Rate1.60x1.60x
Visa Class A Appreciation8.53%8.53%
Expected Duration12-33 months20 months
(1) Weighted average of expected duration based on scenario probability.
The following tables presenttable presents assets and liabilities measured at fair value on a recurring basis as of SeptemberJune 30, 20172023 and December 31, 2016,2022, segregated by fair value hierarchy level.
Table 31: Recurring Basis Hierarchy LevelingTABLE 36: RECURRING BASIS HIERARCHY LEVELING
JUNE 30, 2023
(In Millions)Level 1 Level 2 Level 3 Netting 
Assets/Liabilities
at Fair Value
(In Millions)LEVEL 1LEVEL 2LEVEL 3NETTINGASSETS/LIABILITIES AT FAIR VALUE
September 30, 2017         
Securities         
Debt SecuritiesDebt Securities
Available for Sale         Available for Sale
U.S. Government$5,744.4
 $
 $
 $
 $5,744.4
U.S. Government$2,843.9 $ $ $ $2,843.9 
Obligations of States and Political Subdivisions
 765.9
 
 
 765.9
Obligations of States and Political Subdivisions 289.2   289.2 
Government Sponsored Agency
 18,082.8
 
 
 18,082.8
Government Sponsored Agency 11,349.0   11,349.0 
Non-U.S. Government
 138.7
 
 
 138.7
Non-U.S. Government 251.5   251.5 
Corporate Debt
 3,181.3
 
 
 3,181.3
Corporate Debt 460.9   460.9 
Covered Bonds
 832.1
 
 
 832.1
Covered Bonds 341.0   341.0 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds
 2,202.8
 
 
 2,202.8
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds 2,918.0   2,918.0 
Other Asset-Backed
 2,394.3
 
 
 2,394.3
Other Asset-Backed 4,909.6   4,909.6 
Auction Rate
 
 4.1
 
 4.1
Commercial Mortgage-Backed
 466.5
 
 
 466.5
Commercial Mortgage-Backed 901.3   901.3 
Other
 32.0
 
 
 32.0
Total Available for Sale5,744.4
 28,096.4
 4.1
 
 33,844.9
Total Available for Sale2,843.9 21,420.5   24,264.4 
Trading Account
 0.8
 
 
 0.8
Trading Account 0.1   0.1 
Total Available for Sale and Trading Securities5,744.4
 28,097.2
 4.1
 
 33,845.7
Total Available for Sale and Trading Debt SecuritiesTotal Available for Sale and Trading Debt Securities2,843.9 21,420.6   24,264.5 
Other Assets         Other Assets
Money Market InvestmentMoney Market Investment95.0    95.0 
Derivative Assets         Derivative Assets
Foreign Exchange Contracts
 3,100.1
 
 
 3,100.1
Foreign Exchange Contracts 2,264.1  (1,001.1)1,263.0 
Interest Rate Contracts
 117.1
 
 
 117.1
Interest Rate Contracts 313.9  (244.8)69.1 
Other Financial DerivativesOther Financial Derivatives     
Total Derivative Assets
 3,217.2
 
 (2,373.5) 843.7
Total Derivative Assets 2,578.0  (1,245.9)1,332.1 
Other Liabilities         Other Liabilities
Derivative Liabilities         Derivative Liabilities
Foreign Exchange Contracts
 3,168.6
 
 
 3,168.6
Foreign Exchange Contracts 2,162.6  (1,422.1)740.5 
Interest Rate Contracts
 84.1
 
 
 84.1
Interest Rate Contracts 408.1  (4.1)404.0 
Other Financial Derivatives (1)

 
 27.7
 
 27.7
Other Financial Derivatives(1)
  36.4 (34.8)1.6 
Total Derivative Liabilities$
 $3,252.7
 $27.7
 $(2,089.8) $1,190.6
Total Derivative Liabilities$ $2,570.7 $36.4 $(1,461.0)$1,146.1 
Note: Northern Trust has elected to net derivative assets and liabilities when legally enforceable master netting arrangements or similar agreements exist between Northern Trust and the counterparty. As of SeptemberJune 30, 2017,2023, derivative assets and liabilities shown above also include reductions of $617.9$304.9 million and $334.2$520.0 million, respectively, as a result of cash collateral received from and deposited with derivative counterparties.
(1)
This line consists of swaps related to the sale of certain Visa Class B common shares.


(1)This line consists of swaps related to the sale of certain Visa Class B common shares.
40
41

Notes to Consolidated Financial Statements (unaudited) (continued)

DECEMBER 31, 2022
(In Millions)Level 1 Level 2 Level 3 Netting 
Assets/Liabilities
at Fair Value
(In Millions)LEVEL 1LEVEL 2LEVEL 3NETTINGASSETS/LIABILITIES AT FAIR VALUE
December 31, 2016         
Securities         
Debt SecuritiesDebt Securities
Available for Sale         Available for Sale
U.S. Government$7,522.6
 $
 $
 $
 $7,522.6
U.S. Government$2,747.4 $— $— $— $2,747.4 
Obligations of States and Political Subdivisions
 885.2
 
 
 885.2
Obligations of States and Political Subdivisions— 787.6 — — 787.6 
Government Sponsored Agency
 17,892.8
 
 
 17,892.8
Government Sponsored Agency— 11,545.2 — — 11,545.2 
Non-U.S. Government
 417.9
 
 
 417.9
Non-U.S. Government— 360.0 — — 360.0 
Corporate Debt
 3,765.2
 
 
 3,765.2
Corporate Debt— 1,747.6 — — 1,747.6 
Covered Bonds
 1,143.9
 
 
 1,143.9
Covered Bonds— 388.7 — — 388.7 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds
 1,340.7
 
 
 1,340.7
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds— 2,479.4 — — 2,479.4 
Other Asset-Backed
 2,085.1
 
 
 2,085.1
Other Asset-Backed— 5,256.2 — — 5,256.2 
Auction Rate
 
 4.7
 
 4.7
Commercial Mortgage-Backed
 471.6
 
 
 471.6
Commercial Mortgage-Backed— 1,387.8 — — 1,387.8 
Other
 50.1
 
 
 50.1
Total Available for Sale7,522.6
 28,052.5
 4.7
 
 35,579.8
Total Available for Sale2,747.4 23,952.5 — — 26,699.9 
Trading Account
 0.3
 
 
 0.3
Trading Account95.0 0.2 — — 95.2 
Total Available for Sale and Trading Securities7,522.6
 28,052.8
 4.7
 
 35,580.1
Total Available for Sale and Trading Debt SecuritiesTotal Available for Sale and Trading Debt Securities2,842.4 23,952.7 — — 26,795.1 
Other Assets         Other Assets
Derivative Assets         Derivative Assets
Foreign Exchange Contracts
 3,609.6
 
 
 3,609.6
Foreign Exchange Contracts— 3,510.1 — (2,666.4)843.7 
Interest Rate Contracts
 247.2
 
 
 247.2
Interest Rate Contracts— 222.0 — (144.3)77.7 
Other Financial Derivatives(1)
Other Financial Derivatives(1)
— 0.3 — — 0.3 
Total Derivative Assets
 3,856.8
 
 (2,170.4) 1,686.4
Total Derivative Assets— 3,732.4 — (2,810.7)921.7 
Other Liabilities        

Other Liabilities
Derivative Liabilities        

Derivative Liabilities
Foreign Exchange Contracts
 3,242.9
 
 
 3,242.9
Foreign Exchange Contracts— 3,187.5 — (1,826.7)1,360.8 
Interest Rate Contracts
 108.0
 
 
 108.0
Interest Rate Contracts— 431.8 — (5.9)425.9 
Other Financial Derivatives (1)

 
 25.2
 
 25.2
Other Financial Derivatives(2)
Other Financial Derivatives(2)
— — 34.8 (33.3)1.5 
Total Derivative Liabilities$
 $3,350.9

$25.2

$(2,431.2) $944.9
Total Derivative Liabilities$— $3,619.3 $34.8 $(1,865.9)$1,788.2 
Note: Northern Trust has elected to net derivative assets and liabilities when legally enforceable master netting arrangements or similar agreements exist between Northern Trust and the counterparty. As of December 31, 2016,2022, derivative assets and liabilities shown above also include reductions of $461.3$1,140.2 million and $722.1$195.3 million, respectively, as a result of cash collateral received from and deposited with derivative counterparties.
(1)
This line consists of swaps related to the sale of certain Visa Class B common shares.

(1) This line consists of total return swap contracts.
(2) This line consists of swaps related to the sale of certain Visa Class B common shares.
The following table presents the changes in Level 3 liabilities for the three and six months ended June 30, 2023 and 2022.
TABLE 37: CHANGES IN LEVEL 3 LIABILITIES
(In Millions)SWAPS RELATED TO SALE OF CERTAIN VISA CLASS B COMMON SHARES
THREE MONTHS ENDED JUNE 30,20232022
Fair Value at April 1$34.6 $35.3 
Total (Gains) Losses:
Included in Earnings(1)
10.9 5.6 
Purchases, Issues, Sales, and Settlements
Settlements(9.1)(9.8)
Fair Value at June 30$36.4 $31.1 
(1) (Gains) losses are recorded in Other Operating Income on the consolidated statements of income.
SIX MONTHS ENDED JUNE 30,20232022
Fair Value at January 1$34.8 $37.5 
Total (Gains) Losses:
Included in Earnings(1)
18.5 10.1 
Purchases, Issues, Sales, and Settlements
Settlements(16.9)(16.5)
Fair Value at June 30$36.4 $31.1 
(1) (Gains) losses are recorded in Other Operating Income on the consolidated statements of income.
41
42

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

The following tables present the changes in Level 3 assets and liabilities for the three and nine months ended September 30, 2017 and 2016.
Table 32: Changes in Level 3 Assets
Level 3 Assets (In Millions)
Auction Rate Securities
Three Months Ended September 30,2017 2016
Fair Value at July 1$4.1
 $6.1
Total Gains (Losses):   
Included in Earnings
 
Included in Other Comprehensive Income (1)

 (0.1)
Purchases, Issues, Sales, and Settlements   
Sales
 
Settlements
 (0.2)
Fair Value at September 30$4.1
 $5.8
    
Nine Months Ended September 30,2017 2016
Fair Value at January 1$4.7
 $17.1
Total Gains (Losses):   
Included in Earnings
 
Included in Other Comprehensive Income (1)

 (0.7)
Purchases, Issues, Sales, and Settlements   
Sales
 (10.1)
Settlements(0.6) (0.5)
Fair Value at September 30$4.1
 $5.8
(1)
Unrealized gains (losses) are included in net unrealized gains (losses) on securities available for sale in the consolidated statements of comprehensive income.
Table 33: Changes in Level 3 Liabilities
Level 3 Liabilities (In Millions)
Swaps Related to Sale of
Certain Visa Class B
Common Shares
Three Months Ended September 30,2017 2016
Fair Value at July 1$25.9
 $28.7
Total (Gains) Losses:   
Included in Earnings (1)
4.0
 2.3
Purchases, Issues, Sales, and Settlements   
Purchases
 
Settlements(2.2) (1.5)
Fair Value at September 30$27.7
 $29.5

42

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

Nine Months Ended September 30,2017 2016
Fair Value at January 1$25.2
 $10.8
Total (Gains) Losses:   
Included in Earnings (1)
8.4
 6.9
Purchases, Issues, Sales, and Settlements   
Purchases
 14.9
Settlements(5.9) (3.1)
Fair Value at September 30$27.7
 $29.5
(1)
(Gains) losses are recorded in other operating income in the consolidated statements of income.
During the nine months ended September 30, 2017 and 2016, there were no transfers into or out of Level 3 assets or liabilities.
Carrying values of assets and liabilities that are not measured at fair value on a recurring basis may be adjusted to fair value in periods subsequent to their initial recognition, for example, to record an impairment of an asset. GAAP requires entities to separately disclose separately these subsequent fair value measurements and to classify them under the fair value hierarchy.
Assets measured at fair value on a nonrecurring basis at SeptemberJune 30, 20172023 and 2016,December 31, 2022, all of which were categorized as Level 3 under the fair value hierarchy, were comprised of impairednonaccrual loans whose values were based on real estate and other available collateral, and of other real estate owned (OREO) properties.
Fair values of real-estatereal estate loan collateral were estimated using a market approach typically supported by third-party valuations and property-specific fees and taxes, andtaxes. The fair values of real estate loan collateral were subject to adjustments to reflect management’s judgment as to realizable value.value and consisted of a discount factor of 20.0% and a range of discount factors from 15.0% to 20.0% with a weighted average based on fair values of 20.0% and 17.2%, as of June 30, 2023 and December 31, 2022, respectively. Other loan collateral, which typically consists of accounts receivable, inventory and equipment, is valued using a market approach adjusted for asset-specific characteristics and in limited instances third-party valuations are used. OREO assets are carried at the lower of cost or fair value less estimated costs to sell, with fair value typically based on third-party appraisals.
Collateral-based impairedCollateral-dependent nonaccrual loans and OREO assets that have been adjusted to fair value totaled $12.6$8.4 million and $1.4$6.6 million respectively, at SeptemberJune 30, 2017,2023 and $6.7 million and $1.8 million, respectively, at September 30, 2016. AssetsDecember 31, 2022, respectively.
The following table presents the fair values of Northern Trust’s Level 3 assets that were measured at fair value on a nonrecurring basis reflect management’s judgment as to realizable value.
The following table provides the fair value of June 30, 2023 and December 31, 2022, as well as the valuation technique, significant unobservable inputs and quantitative information used to develop the significant unobservable inputs for Northern Trust’s Level 3such assets that were measured at fair value on a nonrecurring basis as of September 30, 2017such dates.
TABLE 38: LEVEL 3 NONRECURRING BASIS SIGNIFICANT UNOBSERVABLE INPUTS
JUNE 30, 2023
FINANCIAL INSTRUMENT
FAIR VALUE(1)
VALUATION TECHNIQUEUNOBSERVABLE INPUTSINPUT VALUESWEIGHTED-AVERAGE INPUT VALUES
Loans$8.4 millionMarket Approach
Discount factor applied to real estate collateral-dependent loans to reflect realizable value
20.0%20.0%
(1) Includes real estate collateral-dependent loans and December 31, 2016.other collateral-dependent loans.
Table 34: Level 3 Nonrecurring Basis Significant Unobservable Inputs
DECEMBER 31, 2022
FINANCIAL INSTRUMENT
FAIR VALUE(1)
VALUATION TECHNIQUEUNOBSERVABLE INPUTSINPUT VALUESWEIGHTED-AVERAGE INPUT VALUES
Loans$6.6 millionMarket ApproachDiscount factor applied to real estate collateral-dependent loans to reflect realizable value15.0 %-20.0%17.2%
(1) Includes real estate collateral-dependent loans and other collateral-dependent loans.
  September 30, 2017
Financial Instrument Fair Value 
Valuation
Technique
 Unobservable Input 
Range of Discounts
Applied
Loans $12.6 million Market Approach Discount to reflect realizable value 15.0%-25.0%
OREO $1.4 million Market Approach Discount to reflect realizable value 15.0%-20.0%

  December 31, 2016
Financial Instrument Fair Value 
Valuation
Technique
 Unobservable Input 
Range of Discounts
Applied
Loans $6.7 million Market Approach Discount to reflect realizable value 15.0%-25.0%
OREO $0.7 million Market Approach Discount to reflect realizable value 15.0%-20.0%
Fair Value of Financial Instruments. GAAP requires disclosure of the estimated fair value of certain financial instruments and the methods and significant assumptions used to estimate fair value. It excludes from this requirement nonfinancial assets and liabilities, as well as a wide range of franchise, relationship and intangible values that add value to Northern Trust. Accordingly, the required fair value disclosures provide only a partial estimate of the fair value of Northern Trust. Financial instruments recorded

43

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

atThe following tables present the book value and estimated fair value, inincluding the fair value hierarchy level, of Northern Trust’s consolidated balance sheets are discussed above. The following methods and assumptions were used in estimating the fair values of financial instruments that are not carriedmeasured at fair value.
Held to Maturity Securities.value on the consolidated balance sheets as of June 30, 2023 and December 31, 2022. The fair values of held to maturity securities, excluding U.S. Treasury securities, were obtained from external pricing vendors, or in limited cases internally, using widely accepted models which are based on an income approach (discounted cash flow) that incorporates current market yield curves. The fair values of U.S. Treasury securities were determined using quoted, active market prices for identical securities.
Loans (excluding lease receivables). Thefollowing tables exclude those items measured at fair value of the loan portfolio was estimated using an income approach (discounted cash flow) that incorporates current market rates offered by Northern Trust as of the date of the consolidated financial statements. The fair values of all loans were adjusted to reflect current assessments of loan collectability. Loans held for sale are recorded at the lower of cost or fair value.
Federal Reserve and Federal Home Loan Bank Stock. The fair values of Federal Reserve and Federal Home Loan Bank stock are equal to their carrying values which represent redemption value.
Community Development Investments. The fair values of these instruments were estimated using an income approach (discounted cash flow) that incorporates current market rates.
Employee Benefit and Deferred Compensation. These assets include U.S. Treasury securities and investments in mutual and collective trust funds held to fund certain supplemental employee benefit obligations and deferred compensation plans. Fair values of U.S. Treasury securities were determined using quoted, active market prices for identical securities. The fair values of investments in mutual and collective trust funds were valued at the funds’ net asset values based on a market approach.recurring basis.
Savings Certificates and Other Time Deposits. The fair values of these instruments were estimated using an income approach (discounted cash flow) that incorporates market interest rates currently offered by Northern Trust for deposits with similar maturities.TABLE 39: FAIR VALUE OF FINANCIAL INSTRUMENTS
JUNE 30, 2023
  ESTIMATED FAIR VALUE
(In Millions)BOOK VALUETOTAL ESTIMATED FAIR VALUELEVEL 1LEVEL 2LEVEL 3
FINANCIAL ASSETS
Cash and Due from Banks$4,897.7 $4,897.7 $4,897.7 $ $ 
Federal Reserve and Other Central Bank Deposits42,727.7 42,727.7  42,727.7  
Interest-Bearing Deposits with Banks1,479.2 1,479.2  1,479.2  
Securities Purchased under Agreements to Resell1,228.9 1,228.9  1,228.9  
Debt Securities - Held to Maturity26,006.3 23,759.2  23,759.2  
Loans
Held for Investment43,394.2 43,419.6   43,419.6 
Other Assets1,599.5 1,585.2 99.3 1,485.9  
FINANCIAL LIABILITIES
Deposits
Demand, Noninterest-Bearing, Savings, Money Market and Other Interest-Bearing$44,861.9 $44,861.9 $44,861.9 $ $ 
Savings Certificates and Other Time3,327.0 3,348.8  3,348.8  
Non U.S. Offices Interest-Bearing65,014.7 65,014.7  65,014.7  
Federal Funds Purchased9,344.5 9,344.5  9,344.5  
Securities Sold Under Agreements to Repurchase988.1 988.1  988.1  
Other Borrowings12,382.0 12,378.2  12,378.2  
Senior Notes2,729.5 2,713.9  2,713.9  
Long-Term Debt2,061.5 2,069.3  2,069.3  
Unfunded Commitments219.1 219.1  219.1  
Other Liabilities86.8 86.8   86.8 
Senior Notes, Subordinated Debt, and Floating Rate Capital Debt. Fair values were determined using a market approach based on quoted market prices, when available. If quoted market prices were not available, fair values were based on quoted market prices for comparable instruments.
DECEMBER 31, 2022
  ESTIMATED FAIR VALUE
(In Millions)BOOK VALUETOTAL ESTIMATED FAIR VALUELEVEL 1LEVEL 2LEVEL 3
FINANCIAL ASSETS
Cash and Due from Banks$4,654.2 $4,654.2 $4,654.2 $— $— 
Federal Reserve and Other Central Bank Deposits40,030.4 40,030.4 — 40,030.4 — 
Interest-Bearing Deposits with Banks1,941.1 1,941.1 — 1,941.1 — 
Federal Funds Sold32.0 32.0 — 32.0 — 
Securities Purchased under Agreements to Resell1,070.3 1,070.3 — 1,070.3 — 
Debt Securities - Held to Maturity25,036.1 22,879.3 50.0 22,829.3 — 
Loans
Held for Investment42,749.0 42,636.5 — — 42,636.5 
Other Assets1,476.9 1,460.4 94.7 1,365.7 — 
FINANCIAL LIABILITIES
Deposits
Demand, Noninterest-Bearing, Savings, Money Market and Other Interest-Bearing$56,468.9 $56,468.9 $56,468.9 $— $— 
Savings Certificates and Other Time1,981.3 1,976.1 — 1,976.1 — 
Non U.S. Offices Interest-Bearing65,481.9 65,481.9 — 65,481.9 — 
Federal Funds Purchased1,896.9 1,896.9 — 1,896.9 — 
Securities Sold Under Agreements to Repurchase567.2 567.2 — 567.2 — 
Other Borrowings7,592.3 7,592.8 — 7,592.8 — 
Senior Notes2,724.2 2,729.8 — 2,729.8 — 
Long-Term Debt2,066.2 2,110.7 — 2,110.7 — 
Unfunded Commitments218.9 218.9 — 218.9 — 
Other Liabilities73.2 73.2 — — 73.2 
Federal Home Loan Bank Borrowings. The fair values of these instruments were estimated using an income approach (discounted cash flow) that incorporates market interest rates available to Northern Trust.
Loan Commitments. The fair values of loan commitments represent the estimated costs to terminate or otherwise settle the obligations with a third party adjusted for any related allowance for credit losses.
Standby Letters of Credit. The fair values of standby letters of credit are measured as the amount of unamortized fees on these instruments, inclusive of the related allowance for credit losses. Fees are determined by applying basis points to the principal amounts of the letters of credit.
Financial Instruments Valued at Carrying Value. Due to their short maturity, the carrying values of certain financial instruments approximated their fair values. These financial instruments include: cash and due from banks; federal funds sold and securities purchased under agreements to resell; interest-bearing deposits with banks; Federal Reserve and other central bank deposits; client security settlement receivables; non-U.S. offices interest-bearing deposits; federal funds purchased; securities sold under agreements to repurchase; and other borrowings (includes term federal funds purchased and other short-term borrowings). The fair values of demand, noninterest-bearing, savings, and money market deposits represent the amounts payable on demand as of the reporting date, although such deposits are typically priced at a premium in banking industry consolidations.

44

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

The following tables summarize the fair values of all financial instruments.
Table 35: Fair Value of Financial Instruments
(In Millions)September 30, 2017
 
Book
Value
 
Total
Fair Value
 Fair Value
 Level 1 Level 2 Level 3
Assets     
Cash and Due from Banks$5,262.9
 $5,262.9
 $5,262.9
 $
 $
Federal Reserve and Other Central Bank Deposits34,060.7
 34,060.7
 
 34,060.7
 
Interest-Bearing Deposits with Banks5,684.4
 5,684.4
 
 5,684.4
 
Federal Funds Sold and Resell Agreements1,670.8
 1,670.8
 
 1,670.8
 
Securities         
Available for Sale (Note)
33,844.9
 33,844.9
 5,744.4
 28,096.4
 4.1
Held to Maturity10,811.0
 10,778.7
 23.9
 10,754.8
 
Trading Account0.8
 0.8
 
 0.8
 
Loans (excluding Leases)         
Held for Investment32,950.3
 33,077.6
 
 
 33,077.6
Held for Sale
 
 
 
 
Client Security Settlement Receivables1,274.0
 1,274.0
 
 1,274.0
 
Other Assets         
Federal Reserve and Federal Home Loan Bank Stock248.1
 248.1
 
 248.1
 
Community Development Investments333.8
 345.0
 
 345.0
 
Employee Benefit and Deferred Compensation180.3
 180.7
 118.0
 62.7
 
Liabilities         
Deposits     
Demand, Noninterest-Bearing, Savings, Money Market and Other Interest-Bearing$42,342.1
 $42,342.1
 $42,342.1
 $
 $
Savings Certificates and Other Time1,227.4
 1,229.2
 
 1,229.2
 
Non U.S. Offices Interest-Bearing62,241.1
 62,241.1
 
 62,241.1
 
Federal Funds Purchased2,142.2
 2,142.2
 
 2,142.2
 
Securities Sold under Agreements to Repurchase523.9
 523.9
 
 523.9
 
Other Borrowings6,052.3
 6,053.3
 
 6,053.3
 
Senior Notes1,497.1
 1,541.4
 
 1,541.4
 
Long Term Debt (excluding Leases)         
Subordinated Debt1,647.3
 1,657.8
 
 1,657.8
 
Floating Rate Capital Debt277.5
 259.3
 
 259.3
 
Other Liabilities         
Standby Letters of Credit34.9
 34.9
 
 
 34.9
Loan Commitments29.6
 29.6
 
 
 29.6
Derivative Instruments         
Asset/Liability Management         
Foreign Exchange Contracts         
Assets$52.7
 $52.7
 $
 $52.7
 $
Liabilities166.3
 166.3
 
 166.3
 
Interest Rate Contracts         
Assets35.6
 35.6
 
 35.6
 
Liabilities16.8
 16.8
 
 16.8
 
Other Financial Derivatives       
Liabilities (1)
27.7
 27.7
 
 
 27.7
Client-Related and Trading         
Foreign Exchange Contracts         
Assets3,047.4
 3,047.4
 
 3,047.4
 
Liabilities3,002.2
 3,002.2
 
 3,002.2
 
Interest Rate Contracts       
Assets81.5
 81.5
 
 81.5
 
Liabilities67.3
 67.3
 
 67.3
 
Note: Refer to the table located on page 40 for the disaggregation of available for sale securities.
(1)
This line consists of swaps related to the sale of certain Visa Class B common shares.

45

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

(In Millions)December 31, 2016
 
Book
Value
 
Total
Fair Value
 Fair Value
 Level 1 Level 2 Level 3
Assets         
Cash and Due from Banks$5,332.0
 $5,332.0
 $5,332.0
 $
 $
Federal Reserve and Other Central Bank Deposits26,674.2
 26,674.2
 
 26,674.2
 
Interest-Bearing Deposits with Banks4,800.6
 4,800.6
 
 4,800.6
 
Federal Funds Sold and Resell Agreements1,974.3
 1,974.3
 
 1,974.3
 
Securities         
Available for Sale (Note)
35,579.8
 35,579.8
 7,522.6
 28,052.5
 4.7
Held to Maturity8,921.1
 8,905.1
 15.0
 8,890.1
 
Trading Account0.3
 0.3
 
 0.3
 
Loans (excluding Leases)         
Held for Investment33,354.1
 33,471.3
 
 
 33,471.3
Held for Sale13.4
 13.4
 
 
 13.4
Client Security Settlement Receivables1,043.7
 1,043.7
 
 1,043.7
 
Other Assets         
Federal Reserve and Federal Home Loan Bank Stock203.1
 203.1
 
 203.1
 
Community Development Investments218.9
 215.5
 
 215.5
 
Employee Benefit and Deferred Compensation166.2
 162.5
 107.2
 55.3
 
Liabilities         
Deposits         
Demand, Noninterest-Bearing, Savings, Money Market and Other Interest-Bearing$46,671.9
 $46,671.9
 $46,671.9
 $
 $
Savings Certificates and Other Time1,331.7
 1,337.5
 
 1,337.5
 
Non U.S. Offices Interest-Bearing53,648.1
 53,648.1
 
 53,648.1
 
Federal Funds Purchased204.8
 204.8
 
 204.8
 
Securities Sold under Agreements to Repurchase473.7
 473.7
 
 473.7
 
Other Borrowings5,109.5
 5,113.4
 
 5,113.4
 
Senior Notes1,496.6
 1,535.5
 
 1,535.5
 
Long Term Debt (excluding Leases)         
Subordinated Debt1,307.9
 1,316.0
 
 1,316.0
 
Floating Rate Capital Debt277.4
 251.0
 
 251.0
 
Other Liabilities         
Standby Letters of Credit37.2
 37.2
 
 
 37.2
Loan Commitments41.2
 41.2
 
 
 41.2
Derivative Instruments         
Asset/Liability Management         
Foreign Exchange Contracts         
Assets$335.4
 $335.4
 $
 $335.4
 $
Liabilities21.2
 21.2
 
 21.2
 
Interest Rate Contracts         
Assets160.2
 160.2
 
 160.2
 
Liabilities22.8
 22.8
 
 22.8
 
Other Financial Derivatives         
Liabilities (1)
25.2
 25.2
 
 
 25.2
Client-Related and Trading         
Foreign Exchange Contracts         
Assets3,274.2
 3,274.2
 
 3,274.2
 
Liabilities3,221.7
 3,221.7
 
 3,221.7
 
Interest Rate Contracts         
Assets87.0
 87.0
 
 87.0
 
Liabilities85.2
 85.2
 
 85.2
 
Note: Refer to the table located on page 41 for the disaggregation of available for sale securities.
(1)
This line consists of swaps related to the sale of certain Visa Class B common shares.

46

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

Note 4 – Securities
Available for Sale Debt Securities.The following tables provide the amortized cost and fair values as of securities at SeptemberJune 30, 20172023 and December 31, 2016.
Table 36: Reconciliation2022, and remaining maturities of Amortized Cost to Fair Value of Securities Available for Sale
Securities Available for SaleSeptember 30, 2017
 
Amortized
Cost
 Gross Unrealized 
Fair
Value
(In Millions)Gains Losses 
U.S. Government$5,731.6
 $24.2
 $11.4
 $5,744.4
Obligations of States and Political Subdivisions766.3
 0.3
 0.7
 765.9
Government Sponsored Agency18,101.4
 43.1
 61.7
 18,082.8
Non-U.S. Government139.9
 
 1.2
 138.7
Corporate Debt3,194.3
 3.6
 16.6
 3,181.3
Covered Bonds833.5
 1.5
 2.9
 832.1
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds2,202.6
 4.0
 3.8
 2,202.8
Other Asset-Backed2,394.0
 2.4
 2.1
 2,394.3
Auction Rate4.4
 
 0.3
 4.1
Commercial Mortgage-Backed469.0
 
 2.5
 466.5
Other32.0
 
 
 32.0
Total$33,869.0
 $79.1
 $103.2
 $33,844.9
Securities Available for SaleDecember 31, 2016
 
Amortized
Cost
 Gross Unrealized 
Fair
Value
(In Millions)Gains Losses 
U.S. Government$7,514.5
 $22.4
 $14.3
 $7,522.6
Obligations of States and Political Subdivisions890.8
 
 5.6
 885.2
Government Sponsored Agency17,914.1
 49.3
 70.6
 17,892.8
Non-U.S. Government420.0
 
 2.1
 417.9
Corporate Debt3,787.4
 2.6
 24.8
 3,765.2
Covered Bonds1,148.6
 0.8
 5.5
 1,143.9
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds1,343.6
 0.9
 3.8
 1,340.7
Other Asset-Backed2,083.7
 2.7
 1.3
 2,085.1
Auction Rate5.0
 
 0.3
 4.7
Commercial Mortgage-Backed474.1
 
 2.5
 471.6
Other50.1
 
 
 50.1
Total$35,631.9
 $78.7
 $130.8
 $35,579.8

47

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

Table 37: Reconciliation of Amortized Cost to Fair Value of Securities Held to Maturity
Securities Held to MaturitySeptember 30, 2017
 
Amortized
Cost
 Gross Unrealized 
Fair
Value
(In Millions)Gains Losses 
U.S Government$23.9
 $
 $
 $23.9
Obligations of States and Political Subdivisions44.8
 2.0
 
 46.8
Government Sponsored Agency6.3
 0.4
 
 6.7
Corporate Debt327.1
 0.8
 
 327.9
Covered Bonds2,777.4
 13.1
 3.5
 2,787.0
Non-U.S. Government3,609.2
 1.5
 8.1
 3,602.6
Certificates of Deposit153.4
 
 0.1
 153.3
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds2,650.4
 5.7
 6.8
 2,649.3
Other Asset-Backed1,030.4
 0.7

0.7
 1,030.4
Other188.1
 
 37.3
 150.8
Total$10,811.0
 $24.2
 $56.5
 $10,778.7
Securities Held to MaturityDecember 31, 2016
 
Amortized
Cost
 Gross Unrealized 
Fair
Value
(In Millions)Gains Losses 
U.S Government$15.0
 $
 $
 $15.0
Obligations of States and Political Subdivisions63.6
 2.7
 
 66.3
Government Sponsored Agency7.4
 0.5
 
 7.9
Corporate Debt231.2
 0.2
 0.4
 231.0
Covered Bonds2,051.6
 10.1
 3.7
 2,058.0
Non-U.S. Government3,517.5
 4.9
 2.3
 3,520.1
Certificates of Deposit606.0
 0.2
 0.1
 606.1
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds2,154.7
 10.5
 2.8
 2,162.4
Other Asset-Backed143.4
 0.1
 
 143.5
Other130.7
 
 35.9
 94.8
Total$8,921.1
 $29.2
 $45.2
 $8,905.1
Securities held to maturity consist ofAFS debt securities that management intends to, and Northern Trust has the ability to, hold until maturity. During the three months ended September 30, 2017, approximately $1.0 billion of securities reflected in Other Asset-Backed, Covered Bonds, Sub-Sovereign, Supranational and Non-U.S. Agency Bonds, and Corporate Debt were transferred from available for sale to held to maturity.

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Notes to Consolidated Financial Statements (unaudited) (continued)

The following table provides the remaining maturity of securities as of SeptemberJune 30, 2017.2023.
Table 38: Remaining Maturity of Securities Available for Sale and Held to MaturityTABLE 40: RECONCILIATION OF AMORTIZED COST TO FAIR VALUE OF AVAILABLE FOR SALE DEBT SECURITIES
JUNE 30, 2023
(In Millions)AMORTIZED COSTGROSS UNREALIZED GAINSGROSS UNREALIZED LOSSESFAIR VALUE
U.S. Government$2,942.3 $0.6 $99.0 $2,843.9 
Obligations of States and Political Subdivisions310.2  21.0 289.2 
Government Sponsored Agency11,656.4 3.9 311.3 11,349.0 
Non-U.S. Government277.8  26.3 251.5 
Corporate Debt479.7 0.3 19.1 460.9 
Covered Bonds353.6 0.2 12.8 341.0 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds3,068.0 1.4 151.4 2,918.0 
Other Asset-Backed5,135.0 0.8 226.2 4,909.6 
Commercial Mortgage-Backed965.4 0.1 64.2 901.3 
Total$25,188.4 $7.3 $931.3 $24,264.4 
 September 30, 2017
(In Millions)
Amortized
Cost
 
Fair
Value
Available for Sale   
Due in One Year or Less$6,343.8
 $6,337.3
Due After One Year Through Five Years20,521.1
 20,506.8
Due After Five Years Through Ten Years6,105.8
 6,108.4
Due After Ten Years898.3
 892.4
Total33,869.0
 33,844.9
Held to Maturity   
Due in One Year or Less3,355.6
 3,357.6
Due After One Year Through Five Years6,995.0
 6,991.9
Due After Five Years Through Ten Years399.5
 393.3
Due After Ten Years60.9
 35.9
Total$10,811.0
 $10,778.7
DECEMBER 31, 2022
(In Millions)AMORTIZED COSTGROSS UNREALIZED GAINSGROSS UNREALIZED LOSSESFAIR VALUE
U.S. Government$2,837.7 $2.5 $92.8 $2,747.4 
Obligations of States and Political Subdivisions817.8 — 30.2 787.6 
Government Sponsored Agency11,892.5 4.3 351.6 11,545.2 
Non-U.S. Government387.6 — 27.6 360.0 
Corporate Debt1,774.3 0.2 26.9 1,747.6 
Covered Bonds403.1 0.3 14.7 388.7 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds2,645.8 0.3 166.7 2,479.4 
Other Asset-Backed5,544.3 — 288.1 5,256.2 
Commercial Mortgage-Backed1,456.9 0.1 69.2 1,387.8 
Total$27,760.0 $7.7 $1,067.8 $26,699.9 
TABLE 41: REMAINING MATURITY OF AVAILABLE FOR SALE DEBT SECURITIES
JUNE 30, 2023ONE YEAR OR LESSONE TO FIVE YEARSFIVE TO TEN YEARSOVER TEN YEARSTOTAL
(In Millions)AMORTIZED COSTFAIR VALUEAMORTIZED COSTFAIR VALUEAMORTIZED COSTFAIR VALUEAMORTIZED COSTFAIR VALUEAMORTIZED COSTFAIR VALUE
U.S. Government$1,094.4 $1,092.7 $1,847.9 $1,751.2 $ $ $ $ $2,942.3 $2,843.9 
Obligations of States and Political Subdivisions  45.1 41.6 246.2 229.5 18.9 18.1 310.2 289.2 
Government Sponsored Agency2,278.8 2,236.5 5,336.1 5,196.1 3,282.9 3,197.8 758.6 718.6 11,656.4 11,349.0 
Non-U.S. Government  277.8 251.5     277.8 251.5 
Corporate Debt198.5 197.0 263.8 249.1 17.4 14.8   479.7 460.9 
Covered Bonds134.1 133.6 219.5 207.4     353.6 341.0 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds649.2 640.9 2,256.2 2,143.0 162.6 134.1   3,068.0 2,918.0 
Other Asset-Backed1,191.8 1,136.1 2,732.6 2,579.0 1,106.5 1,091.7 104.1 102.8 5,135.0 4,909.6 
Commercial Mortgage-Backed37.8 35.7 771.9 735.0 155.7 130.6   965.4 901.3 
Total$5,584.6 $5,472.5 $13,750.9 $13,153.9 $4,971.3 $4,798.5 $881.6 $839.5 $25,188.4 $24,264.4 
Note: Mortgage-backed and asset-backed securities are included in the above table taking into account anticipated future prepayments.
Investment Security Gains / Losses. Net investment security losses of $0.4 million were recognized in the three months ended September 30, 2017. Net investment security gains of $0.2 million were recognized in the three months ended September 30, 2016. Gross proceeds from the sale of securities during the three months ended September 30, 2017 and 2016 were $398.8 million and $217.2 million, respectively.
There were $1.1 million of net investment security losses recognized in the nine months ended September 30, 2017, which include $0.1 million of charges related to the OTTI of certain CRA-eligible held to maturity securities. Net investment security losses of $1.9 million were recognized in the nine months ended September 30, 2016, which include $2.4 million of charges related to the OTTI of certain CRA-eligible held to maturity securities. For the nine months ended September 30, 2017, proceeds of $1.9 billion were received from the sale of securities, resulting in gross realized gains and losses of $0.2 million and $1.3 million, respectively. For the nine months ended September 30, 2016, proceeds of $740.8 million were received from the sale of securities, resulting in gross realized gains of $0.5 million.


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Notes to Consolidated Financial Statements (unaudited) (continued)

Available for Sale Debt Securities with Unrealized Losses. The following tables providetable provides information regarding AFS debt securities with no credit losses reported that had been in a continuous unrealized loss position for less than twelve months and for twelve months or longer as of SeptemberJune 30, 20172023 and December 31, 2016.2022.
Table 39: SecuritiesTABLE 42: AVAILABLE FOR SALE DEBT SECURITIES IN UNREALIZED LOSS POSITION WITH NO CREDIT LOSSES REPORTED
JUNE 30, 2023LESS THAN 12 MONTHS12 MONTHS OR LONGERTOTAL
(In Millions)FAIR
VALUE
UNREALIZED
LOSSES
FAIR
VALUE
UNREALIZED
LOSSES
FAIR
VALUE
UNREALIZED
LOSSES
U.S. Government$865.4 $10.4 $1,182.8 $88.6 $2,048.2 $99.0 
Obligations of States and Political Subdivisions  289.2 21.0 289.2 21.0 
Government Sponsored Agency2,564.0 13.9 7,969.2 297.4 10,533.2 311.3 
Non-U.S. Government  251.5 26.3 251.5 26.3 
Corporate Debt6.9 0.1 311.0 10.6 317.9 10.7 
Covered Bonds  256.3 12.8 256.3 12.8 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds542.4 2.8 1,798.7 139.8 2,341.1 142.6 
Other Asset-Backed  4,748.4 226.2 4,748.4 226.2 
Commercial Mortgage-Backed1.2  872.6 64.2 873.8 64.2 
Total$3,979.9 $27.2 $17,679.7 $886.9 $21,659.6 $914.1 
Note: Three corporate debt AFS securities with Unrealizeda fair value of $92.6 million and unrealized losses of $8.4 million and one sub-sovereign, supranational and non-U.S. agency bond AFS security with a fair value of $68.6 million and unrealized losses of $8.8 million have been excluded from the table above as these AFS securities have a $1.3 million allowance for credit losses reported as of June 30, 2023. Refer to the discussion further below and Note 6—Allowance for Credit Losses for further information.
DECEMBER 31, 2022LESS THAN 12 MONTHS12 MONTHS OR LONGERTOTAL
(In Millions)FAIR
VALUE
UNREALIZED
LOSSES
FAIR
VALUE
UNREALIZED
LOSSES
FAIR
VALUE
UNREALIZED
LOSSES
U.S. Government$1,123.6 $64.1 $343.1 $28.7 $1,466.7 $92.8 
Obligations of States and Political Subdivisions160.0 16.8 120.6 13.4 280.6 30.2 
Government Sponsored Agency7,631.4 262.1 2,737.7 89.5 10,369.1 351.6 
Non-U.S. Government235.4 17.3 124.6 10.3 360.0 27.6 
Corporate Debt427.3 14.6 130.3 2.8 557.6 17.4 
Covered Bonds238.0 13.5 42.8 1.2 280.8 14.7 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds1,305.4 74.4 807.1 83.2 2,112.5 157.6 
Other Asset-Backed3,873.4 217.5 1,247.6 70.6 5,121.0 288.1 
Commercial Mortgage-Backed670.9 47.4 215.6 21.8 886.5 69.2 
Total$15,665.4 $727.7 $5,769.4 $321.5 $21,434.8 $1,049.2 
Securities with Unrealized Losses as of September 30, 2017 Less than 12 Months 12 Months or Longer Total
(In Millions) Fair Value 
Unrealized
Losses
 Fair Value 
Unrealized
Losses
 Fair Value 
Unrealized
Losses
U.S. Government $2,109.7
 $9.4
 $99.9
 $2.0
 $2,209.6
 $11.4
Obligations of States and Political Subdivisions 586.9
 0.7
 
 
 586.9
 0.7
Government Sponsored Agency 7,032.9
 46.4
 2,808.3
 15.3
 9,841.2
 61.7
Non-U.S. Government 2,972.5
 9.3
 
 
 2,972.5
 9.3
Corporate Debt 1,229.9
 5.2
 941.7
 11.4
 2,171.6
 16.6
Covered Bonds 1,069.8
 6.4
 
 
 1,069.8
 6.4
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds 2,350.6
 9.8
 309.2
 0.8
 2,659.8
 10.6
Other Asset-Backed 1,347.3
 2.8
 
 
 1,347.3
 2.8
Certificates of Deposit 61.1
 0.1
 
 
 61.1
 0.1
Auction Rate 
 
 3.7
 0.3
 3.7
 0.3
Commercial Mortgage-Backed 466.5
 2.5
 
 
 466.5
 2.5
Other 98.4
 17.7
 53.2
 19.6
 151.6
 37.3
Total $19,325.6
 $110.3
 $4,216.0
 $49.4
 $23,541.6
 $159.7
Securities with Unrealized Losses as of December 31, 2016 Less than 12 Months 12 Months or Longer Total
(In Millions) Fair Value 
Unrealized
Losses
 Fair Value 
Unrealized
Losses
 Fair Value 
Unrealized
Losses
U.S. Government $1,603.0
 $14.3
 $
 $
 $1,603.0
 $14.3
Obligations of States and Political Subdivisions 865.3
 5.6
 
 
 865.3
 5.6
Government Sponsored Agency 8,252.5
 58.5
 2,121.0
 12.1
 10,373.5
 70.6
Non-U.S. Government 2,957.1
 4.4
 
 
 2,957.1
 4.4
Corporate Debt 1,601.7
 11.2
 1,054.4
 14.0
 2,656.1
 25.2
Covered Bonds 809.0
 8.6
 138.9
 0.6
 947.9
 9.2
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds 1,136.1
 5.7
 249.1
 0.9
 1,385.2
 6.6
Other Asset-Backed 584.3
 1.3
 
 
 584.3
 1.3
Certificates of Deposit 81.4
 0.1
 
 
 81.4
 0.1
Auction Rate 0.4
 0.1
 4.3
 0.2
 4.7
 0.3
Commercial Mortgage-Backed 471.5
 2.5
 
 
 471.5
 2.5
Other 50.5
 17.9
 59.7
 18.0
 110.2
 35.9
Total $18,412.8
 $130.2
 $3,627.4
 $45.8
 $22,040.2
 $176.0
Note: Three corporate debt AFS securities with a fair value of $93.8 million and unrealized losses of $9.5 million and one sub-sovereign, supranational and non-U.S. agency bonds AFS security with a fair value of $68.3 million and unrealized loss of $9.1 million have been excluded from the table above as these AFS securities have a $1.3 million allowance for credit losses reported as of December 31, 2022. Refer to the discussion further below and Note 6—Allowance for Credit Losses for further information.
As of SeptemberJune 30, 2017, 1,1302023, 1,045 AFS debt securities with a combined fair value of $23.5$21.7 billion were in an unrealized loss position without an allowance for credit losses, with their unrealized losses totaling $159.7$914.1 million. UnrealizedAs of June 30, 2023, unrealized losses related to AFS debt securities of $61.7$311.3 million, $226.2 million, and $142.6 million related to government sponsoredgovernment-sponsored agency securities, other asset-backed and sub-sovereign, supranational and non-U.S. agency bonds, respectively, which are primarily attributable to changes in overall market interest rates since their purchase. Unrealized lossesrates.
As of $16.6 million within corporateDecember 31, 2022, 1,030 AFS debt securities primarily reflect higher market rates since purchase; 37%with a combined fair value of the corporate$21.4 billion were in an unrealized loss position without an allowance for credit losses, with their unrealized losses totaling $1.0 billion. As of December 31, 2022, unrealized losses related to AFS debt portfolio is backed by guarantees provided by U.S.securities of $351.6 million, $288.1 million, and $157.6 million related to government-sponsored agency, other asset-backed, and sub-sovereign, supranational and non-U.S. governmental entities.
The majority of the $37.3 million of unrealized losses in securities classified as “other” at September 30, 2017, related to securitiesagency bonds, respectively, which are primarily purchased at a premium or par by Northern Trust to fulfill its obligations under the CRA. Unrealized losses on these CRA-related securities were attributable to yields that were below market rates for the purpose of supporting institutions and programs that benefit low- to moderate- income communities within Northern Trust’s market area. Unrealized losses of $0.3 million

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Notes to Consolidated Financial Statements (unaudited) (continued)

related to auction rate securities primarily reflected reduced market liquidity as a majority of auctions continued to fail, preventing holders from liquidating their investments at par. The remaining unrealized losses on Northern Trust’s securities portfolio as of September 30, 2017, were attributable to changes in overall market interest rates increasedand credit spreads or reduced market liquidity. since their purchase.
As of September 30, 2017, Northern Trust did not intendDecember 31, 2022, the Corporation intended to sell any investmentcertain AFS debt securities that were in an unrealized loss position and it was more likely than not that Northern Trust would not be requiredposition. The securities were written down to sell any such investment beforetheir fair value of $2.1 billion with a $213.0 million loss recognized in Investment Security Gains (Losses), net on the recoveryconsolidated statements of its amortized cost basis, which may be maturity.income for the period ended December 31, 2022. In January 2023, the securities were subsequently sold resulting in an incremental $6.9 million gain upon sale as compared to the fair value recorded on the consolidated balance sheets at December 31, 2022.
SecurityAFS debt securities impairment reviews are conducted quarterly to identify and evaluate securities that have indications of possible OTTI.credit losses. A determination as to whether a security’s decline in market value is other-than-temporaryrelated to credit impairment takes
46

Notes to Consolidated Financial Statements (unaudited) (continued)
into consideration numerous factors and the relative significance of any single factor can vary by security. Factors Northern Trust considers in determining whether impairment is other-than-temporarycredit-related include, but are not limited to: the length of time the security has been impaired;to, the severity of the impairment; the cause of the impairment and the financial condition and near-term prospects of the issuer; activity in the market of the issuer, which may indicate adverse credit conditions; Northern Trust’s intent regarding the sale of the security as of the balance sheet date; and the likelihood that itNorthern Trust will not be required to sell the security for a period of time sufficient to allow for the recovery of the security’s amortized cost basis. For each security meeting the requirements of Northern Trust’s internal screening process, an extensive review is conducted to determine if OTTIa credit loss has occurred.
While allThere was a $0.5 million release of credit reserves and no provision for credit losses for AFS securities are considered,for the three and six months ended June 30, 2023, respectively. There was a $1.3 million and a $1.7 million provision for credit losses for AFS securities for the three and six months ended June 30, 2022, respectively. There was a $1.3 million allowance for credit losses for AFS securities as of June 30, 2023 which was primarily corporate debt securities and $1.3 million allowance for credit losses for AFS securities as of December 31, 2022. The process for identifying credit impairment within CRA-eligible mortgage-backedlosses for AFS securities incorporates an expected loss approach using discounted cash flows on the underlying collateral pools. To evaluate whether an unrealized loss on CRA-eligible mortgage-backed securities is other-than-temporary, a calculation of the security’s present value is made using current pool data, the current delinquency pipeline, default rates and loan loss severities based on the historical performancebest estimate of cash flows to be collected from the mortgage pools, and Northern Trust’s outlook forsecurity, discounted using the housing market and the overall economy.security’s effective interest rate. If the present value of the collateral pools wasexpected cash flows is found to be less than the current amortized cost of the security, a credit-related OTTI loss would bean allowance for credit losses is generally recorded in earnings equal to the difference between the two amounts.
Impairments of CRA-eligible mortgage-backed securities are influenced by a number of factors, including but notamounts, limited to U.S. economic and housing market performance, pool credit enhancement level, year of origination and estimated credit quality of the collateral. The factors used in estimating losses related to CRA-eligible mortgage-backed securities vary by vintage of loan origination and collateral quality.
There were no OTTI losses recognized duringamount the three-month periods ended September 30, 2017 and 2016, related to CRA-eligible mortgage-backed securities. There were $0.1 million and $2.4 million of OTTI losses recognized in the nine months ended September 30, 2017 and 2016, respectively, related to CRA-eligible mortgage-backed securities.
Credit Losses on Debt Securities. The table below provides the cumulative credit-related losses recognized in earnings on debt securities other-than-temporarily impaired.
Table 40: Cumulative Credit-Related Losses on Securities
 Three Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Cumulative Credit-Related Losses on Securities Held — Beginning of Period$3.5
 $7.6
 $3.4
 $5.2
Plus: Losses on Newly Identified Impairments
 
 
 0.3
Additional Losses on Previously Identified Impairments
 
 0.1
 2.1
Less: Current and Prior Period Losses on Securities Sold During the Period
 
 
 
Cumulative Credit-Related Losses on Securities Held — End of Period$3.5
 $7.6
 $3.5
 $7.6
Note 5 – Securities Sold Under Agreements to Repurchase
Securities sold under agreements to repurchase are accounted for as collateralized financings and recorded at the amounts at which the securities were sold plus accrued interest. To minimize any potential credit risk associated with these transactions,amortized cost basis exceeds the fair value of the security. For additional information, please refer to Note 6— Allowance for Credit Losses.
Held to Maturity Debt Securities. Held to maturity (HTM) debt securities sold is monitored, limitsconsist of securities that management intends to, and Northern Trust has the ability to, hold until maturity. The following tables provide the amortized cost and fair values as of June 30, 2023 and December 31, 2022, and remaining maturities of HTM debt securities as of June 30, 2023.
TABLE 43: RECONCILIATION OF AMORTIZED COST TO FAIR VALUE OF HELD TO MATURITY DEBT SECURITIES
JUNE 30, 2023
(In Millions)AMORTIZED
COST
GROSS UNREALIZED GAINSGROSS UNREALIZED LOSSESFAIR
VALUE
Obligations of States and Political Subdivisions$2,573.0 $0.2 $108.5 $2,464.7 
Government Sponsored Agency9,354.2  1,137.2 8,217.0 
Non-U.S. Government3,987.3 0.1 145.5 3,841.9 
Corporate Debt669.9  46.7 623.2 
Covered Bonds2,278.7 0.3 151.3 2,127.7 
Certificates of Deposit588.2 0.2  588.4 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds5,645.8 0.8 491.8 5,154.8 
Other Asset-Backed288.0 0.2 0.5 287.7 
Commercial Mortgage-Backed37.6  0.8 36.8 
Other583.6  166.6 417.0 
Total$26,006.3 $1.8 $2,248.9 $23,759.2 
DECEMBER 31, 2022
(In Millions)AMORTIZED
COST
GROSS UNREALIZED GAINSGROSS UNREALIZED LOSSESFAIR
VALUE
U.S. Government$50.0 $— $— $50.0 
Obligations of States and Political Subdivisions2,565.3 — 149.8 2,415.5 
Government Sponsored Agency9,407.7 — 1,076.0 8,331.7 
Non-U.S. Government3,234.0 0.1 133.8 3,100.3 
Corporate Debt713.3 — 45.4 667.9 
Covered Bonds2,530.3 0.3 158.7 2,371.9 
Certificates of Deposit35.9 — — 35.9 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds5,703.3 1.0 436.1 5,268.2 
Other Asset-Backed263.7 — 1.0 262.7 
Other532.6 — 157.4 375.2 
Total$25,036.1 $1.4 $2,158.2 $22,879.3 
As of June 30, 2023, the $26.0 billion HTM debt securities portfolio had unrealized losses of $1.1 billion and $491.8 million related to government-sponsored agency and sub-sovereign, supranational and non-U.S. agency bonds, respectively, which are set on exposure with counterparties,primarily attributable to changes in overall market interest rates. As of December 31, 2022, the $25.0 billion HTM debt securities portfolio had unrealized losses of $1.1 billion and the financial condition of counterparties is regularly assessed. Securities sold under agreements$436.1 million related to repurchasegovernment-sponsored agency and sub-sovereign, supranational and non-U.S. agency bonds, respectively, which are held by the counterparty until the repurchase.primarily attributable to changes in overall market interest rates and credit spreads since their purchase.


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Notes to Consolidated Financial Statements (unaudited) (continued)

TABLE 44: REMAINING MATURITY OF HELD TO MATURITY DEBT SECURITIES
JUNE 30, 2023ONE YEAR OR LESSONE TO FIVE YEARSFIVE TO TEN YEARSOVER TEN YEARSTOTAL
(In Millions)Amortized CostFair ValueAmortized CostFair ValueAmortized CostFair ValueAmortized CostFair ValueAmortized CostFair Value
Obligations of States and Political Subdivisions$45.0 $44.4 $909.3 $875.0 $1,218.2 $1,163.9 $400.5 $381.4 $2,573.0 $2,464.7 
Government Sponsored Agency876.5 765.3 3,058.1 2,692.9 3,592.4 3,180.0 1,827.2 1,578.8 9,354.2 8,217.0 
Non-U.S. Government2,555.9 2,550.7 1,398.0 1,263.3 33.4 27.9   3,987.3 3,841.9 
Corporate Debt107.0 104.3 547.5 506.5 15.4 12.4   669.9 623.2 
Covered Bonds224.0 219.1 1,741.4 1,638.8 313.3 269.8   2,278.7 2,127.7 
Certificates of Deposit588.2 588.4       588.2 588.4 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds864.8 854.5 4,724.3 4,254.2 56.7 46.1   5,645.8 5,154.8 
Other Asset-Backed12.3 12.3 79.0 78.8 171.4 171.3 25.3 25.3 288.0 287.7 
Commercial Mortgage-Backed  37.6 36.8     37.6 36.8 
Other55.4 53.9 326.0 283.6 32.7 23.7 169.5 55.8 583.6 417.0 
Total$5,329.1 $5,192.9 $12,821.2 $11,629.9 $5,433.5 $4,895.1 $2,422.5 $2,041.3 $26,006.3 $23,759.2 
Note: Mortgage-backed and asset-backed securities are included in the above table taking into account anticipated future prepayments.
Credit Quality Indicators. The following table provides the amortized cost of HTM debt securities by credit rating.
TABLE 45: AMORTIZED COST OF HELD TO MATURITY DEBT SECURITIES BY CREDIT RATING
JUNE 30, 2023
(In Millions)AAAAAABBBNOT RATEDTOTAL
Obligations of States and Political Subdivisions$932.1 $1,640.9 $ $ $ $2,573.0 
Government Sponsored Agency9,354.2     9,354.2 
Non-U.S. Government1,249.5 886.3 1,522.4 329.1  3,987.3 
Corporate Debt2.2 308.7 359.0   669.9 
Covered Bonds2,278.7     2,278.7 
Certificates of Deposit555.0    33.2 588.2 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds4,322.0 1,292.9 29.8 1.1  5,645.8 
Other Asset-Backed288.0     288.0 
Commercial Mortgage-Backed37.6     37.6 
Other64.1    519.5 583.6 
Total$19,083.4 $4,128.8 $1,911.2 $330.2 $552.7 $26,006.3 
Percent of Total74 %16 %7 %1 %2 %100 %

DECEMBER 31, 2022
(In Millions)AAAAAABBBNOT RATEDTOTAL
U.S. Government$50.0 $— $— $— $— $50.0 
Obligations of States and Political Subdivisions926.8 1,638.5 — — — 2,565.3 
Government Sponsored Agency9,407.7 — — — — 9,407.7 
Non-U.S. Government762.2 926.5 1,223.0 322.3 — 3,234.0 
Corporate Debt2.1 305.7 405.5 — — 713.3 
Covered Bonds2,530.3 — — — — 2,530.3 
Certificates of Deposit— — — — 35.9 35.9 
Sub-Sovereign, Supranational and Non-U.S. Agency Bonds4,171.3 1,502.0 28.9 1.1 — 5,703.3 
Other Asset-Backed263.7 — — — — 263.7 
Other65.8 — — — 466.8 532.6 
Total$18,179.9 $4,372.7 $1,657.4 $323.4 $502.7 $25,036.1 
Percent of Total73 %17 %%%%100 %
Credit quality indicators are metrics that provide information regarding repurchase agreements that are accounted for as secured borrowings asthe relative credit risk of Septemberdebt securities.Northern Trust maintains a high quality debt securities portfolio, with 97% of the HTM portfolio at both June 30, 2017.
Table 41: Repurchase Agreements Accounted for as Secured Borrowings2023 and December 31, 2022 comprised of securities rated A or higher. The remaining HTM debt securities portfolio was comprised of 1% rated BBB at both June 30, 2023 and December 31, 2022 and 2% was not rated by Moody’s, S&P Global, or Fitch Ratings at both June 30,
48

Notes to Consolidated Financial Statements (unaudited) (continued)
 September 30, 2017
(In Millions)
Remaining Contractual
Maturity of the
Agreements
Repurchase Agreements
Overnight and
Continuous
U.S. Treasury and Agency Securities$523.9
Total Borrowings$523.9
Gross Amount of Recognized Liabilities for Repurchase Agreements in Note 21$523.9
Amounts related to agreements not included in Note 21$
2023 and December 31, 2022. Securities not explicitly rated were grouped where possible under the credit rating of the issuer of the security.
Note 6 – LoansInvestment Security Gains and Leases
EffectiveLosses. There were no sales of debt securities and no net investment security gains (losses) for the periodthree months ended June 30, 2017, the Corporation implemented a change in the classification2023 and 2022. Proceeds of certain loans and leases to enhance the consistency of its reporting across various regulatory regimes. As a result, prior-period loan and lease balances below have been adjusted to conform with current-period presentation. These adjustments generally reflect reclassification of loans and leases$2.1 billion from the commercialsale of debt securities resulted in investment security gains of $6.9 million for the six months ended June 30, 2023 and institutional class tothere were no sales of debt securities during the residential real estate class. There was no impact on total loans and leases previously reported. The previously reported allowance for credit losses remains unadjusted, as the impact of the reclassification on the allowance was immaterial.six months ended June 30, 2022.
Note 5 – Loans
Amounts outstanding for loans and leases,Loans, by segment and class, are shown below.in the following table.
Table 42: LoansTABLE 46: LOANS
(In Millions)JUNE 30, 2023DECEMBER 31, 2022
Commercial
Commercial and Institutional(1)
$12,239.0 $12,415.0 
Commercial Real Estate5,040.1 4,773.0 
Non-U.S.(1)
2,833.7 3,131.1 
Other2,248.4 1,316.5 
Total Commercial22,361.2 21,635.6 
Personal
Private Client14,172.3 14,119.0 
Residential Real Estate6,357.9 6,413.5 
Non-U.S.415.0 510.0 
Other240.3 215.2 
Total Personal21,185.5 21,257.7 
Total Loans$43,546.7 $42,893.3 
(1) Commercial and Leases
(In Millions)September 30,
2017
 December 31,
2016
Commercial   
Commercial and Institutional$9,246.4
 $9,287.4
Commercial Real Estate3,605.9
 4,002.5
Non-U.S.1,650.8
 1,877.8
Lease Financing, net235.7
 293.9
Other465.0
 205.1
Total Commercial15,203.8
 15,666.7
Personal   
Private Client10,678.7
 10,052.0
Residential Real Estate7,394.9
 8,077.5
Other58.7
 25.9
Total Personal18,132.3
 18,155.4
Total Loans and Leases33,336.1
 33,822.1
Allowance for Credit Losses Assigned to Loans and Leases(150.3) (161.0)
Net Loans and Leases$33,185.8
 $33,661.1
institutional and commercial-non-U.S. combined include $5.2 billion and $5.6 billion of private equity capital call finance loans at June 30, 2023 and December 31, 2022, respectively.
Residential real estate loans consist of traditional first lien mortgages and equity credit lines that generally require a loan-to-collateral value of no more than 65% to 80% at inception. Northern Trust’s equity credit line products generally have draw periods of up to 10 years and a balloon payment of any outstanding balance is due at maturity. Payments are interest onlyinterest-only with variable interest rates. Northern Trust does not offer equity credit lines that include an option to convert the outstanding balance to an amortizing payment loan. As of SeptemberJune 30, 20172023 and December 31, 2016,2022, equity credit lines totaled $1.0 billion$228.8 million and $1.2 billion,$248.6 million, respectively, and equity credit lines for which first liens were held by Northern Trust represented 92% and 91%98% of the total equity credit lines as of Septemberboth June 30, 20172023 and December 31, 2016, respectively.2022.
Included within the non-U.S.commercial-other, commercial-non-U.S., commercial-other and personal-other classes are short-duration advances primarily related to the processing of custodied client investments, that totaled $1.3totaling $3.7 billion and $2.9 billion at SeptemberJune 30, 2017,2023 and $1.4 billion at December 31, 2016.

52

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

2022, respectively. Demand depositsdeposit overdrafts reclassified as loan balances, primarily in personal-other, totaled $154.5$8.6 million and $88.1$24.4 million at SeptemberJune 30, 20172023 and December 31, 2016,2022, respectively.
There were no loans classified as held for sale as of Septemberat June 30, 2017.2023 or December 31, 2022. Loans classified as held for sale totaled $13.4are recorded at the lower of cost or fair value. There were no loans sold for the three and six months ended June 30, 2023 and $10.6 million asand $11.2 million loans sold for the three and six months ended June 30, 2022, respectively, which were comprised of December 31, 2016. Leases classified as held for sale totaled $32.6 million as of September 30, 2017residential real estate and $43.0 million as of December 31, 2016, respectively, relatedcommercial and institutional loans.

49

Notes to the decision to exit a non-strategic loan and lease portfolio.Consolidated Financial Statements (unaudited) (continued)
Credit Quality Indicators. Credit quality indicators are statistics, measurements or other metrics that provide information regarding the relative credit risk of loans and leases.loans. Northern Trust utilizes a variety of credit quality indicators to assess the credit risk of loans and leases at the segment, class, and individual credit exposure levels.
As part of its credit process, Northern Trust utilizes an internal borrower risk rating system to support identification, approval, and monitoring of credit risk. Borrower risk ratings are used in credit underwriting and management reporting and the calculation of credit loss allowances and economic capital.
reporting. Risk ratings are used for ranking the credit risk of borrowers and the probability of their default. Each borrower is rated using one of a number of ratings models, or other subjective assessment methodologies, which consider both quantitative and qualitative factors. The ratings models vary among classes of loans and leases in order to capture the unique risk characteristics inherent within each particular type of credit exposure. Provided below are the more significant performance indicator attributes considered within Northern Trust’s borrower rating models, by loan and lease class.
Commercial and Institutional: leverage, profit margin, liquidity, asset size and capital levels;
Commercial Real Estate: debt service coverage, loan-to-value ratio, leasing status and guarantor support;
Lease Financing and Commercial-Other: leverage, profit margin, liquidity, asset size and capital levels;
Non-U.S.: leverage, profit margin, liquidity, return on assets and capital levels;
Residential Real Estate: payment history, credit bureau scores and loan-to-value ratio;
Private Client: cash-flow-to-debt and net worth ratios, leverage and liquidity; and
Personal-Other: cash-flow-to-debt and net worth ratios.
While the criteria vary by model, the objective is for the borrower ratings to be consistent in both the measurement and ranking of risk. Each model is calibrated to a master rating scale to support this consistency. Ratings for borrowers not in default range from “1” for the strongest credits to “7” for the weakest non-defaulted credits. Ratings of “8” or “9” are used for defaulted borrowers. Borrower risk ratings are monitored and are revised when events or circumstances indicate a change is required. Risk ratings are generally validated at least annually.

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Notes to Consolidated Financial Statements (unaudited) (continued)

Loan and lease segment and class balances as of SeptemberJune 30, 20172023 and December 31, 20162022 are provided below,in the following table, segregated by borrower ratings into “1 to 3,” “4 to 5” and “6 to 9” (watch list), categories.list and nonaccrual status) categories by year of origination at amortized cost basis. Loans that are held for investment are reported at the principal amount outstanding, net of unearned income.
Table 43: Borrower Ratings
50

Notes to Consolidated Financial Statements (unaudited) (continued)
 September 30, 2017 December 31, 2016
(In Millions)
1 to 3
Category
 
4 to 5
Category
 
6 to 9
Category
(Watch List)
 Total 
1 to 3
Category
 
4 to 5
Category
 
6 to 9
Category
(Watch List)
 Total
Commercial               
Commercial and Institutional$6,032.2
 $3,106.9
 $107.3
 $9,246.4
 $6,187.2
 $3,013.9
 $86.3
 $9,287.4
Commercial Real Estate1,304.0
 2,282.5
 19.4
 3,605.9
 1,825.7
 2,134.8
 42.0
 4,002.5
Non-U.S.705.8
 943.2
 1.8
 1,650.8
 602.8
 1,273.5
 1.5
 1,877.8
Lease Financing, net194.2
 41.5
 
 235.7
 214.3
 79.6
 
 293.9
Other332.8
 132.2
 
 465.0
 135.5
 67.9
 1.7
 205.1
Total Commercial8,569.0
 6,506.3
 128.5
 15,203.8
 8,965.5
 6,569.7
 131.5
 15,666.7
Personal               
Private Client6,572.6
 4,096.4
 9.7
 10,678.7
 6,373.2
 3,668.4
 10.4
 10,052.0
Residential Real Estate2,645.1
 4,442.3
 307.5
 7,394.9
 2,723.8
 5,008.5
 345.2
 8,077.5
Other42.0
 16.7
 
 58.7
 17.1
 8.5
 0.3
 25.9
Total Personal9,259.7
 8,555.4
 317.2
 18,132.3
 9,114.1
 8,685.4
 355.9
 18,155.4
Total Loans and Leases$17,828.7
 $15,061.7
 $445.7
 $33,336.1
 $18,079.6
 $15,255.1
 $487.4
 $33,822.1
TABLE 47: CREDIT QUALITY INDICATOR AT AMORTIZED COST BASIS BY ORIGINATION YEAR
June 30, 2023TERM LOANSREVOLVING LOANSREVOLVING LOANS CONVERTED TO TERM LOANS
(In Millions)20232022202120202019PRIORTOTAL
Commercial
Commercial and Institutional
Risk Rating:
1 to 3 Category$230.2 $623.3 $941.2 $98.1 $140.8 $404.8 $5,310.4 $15.0 $7,763.8 
4 to 5 Category600.0 782.0 683.9 166.0 141.4 207.0 1,677.3 62.3 4,319.9 
6 to 9 Category3.8 93.4 29.1  0.2 1.7 27.1  155.3 
Total Commercial and Institutional834.0 1,498.7 1,654.2 264.1 282.4 613.5 7,014.8 77.3 12,239.0 
Commercial Real Estate
Risk Rating:
1 to 3 Category290.7 431.7 182.3 26.3 40.4 59.1 53.9 0.5 1,084.9 
4 to 5 Category1,179.0 1,169.7 612.4 275.3 257.6 167.6 212.3 15.4 3,889.3 
6 to 9 Category16.8 3.7 19.9  8.3 14.7 2.5  65.9 
Total Commercial Real Estate1,486.5 1,605.1 814.6 301.6 306.3 241.4 268.7 15.9 5,040.1 
Commercial Real Estate Gross Charge-offs (4.0)      (4.0)
Non-U.S.
Risk Rating:
1 to 3 Category547.1  45.0 98.3 44.9 3.3 1,008.4  1,747.0 
4 to 5 Category759.5 7.9   23.1 170.1 109.6 1.8 1,072.0 
6 to 9 Category 14.7       14.7 
Total Non-U.S.1,306.6 22.6 45.0 98.3 68.0 173.4 1,118.0 1.8 2,833.7 
Other
Risk Rating:
1 to 3 Category1,400.7        1,400.7 
4 to 5 Category847.7        847.7 
Total Other2,248.4        2,248.4 
Total Commercial5,875.5 3,126.4 2,513.8 664.0 656.7 1,028.3 8,401.5 95.0 22,361.2 
Commercial Gross Charge-offs (4.0)      (4.0)
Personal
Private Client
Risk Rating:
1 to 3 Category142.3 256.0 64.9 72.3 6.2 20.1 5,361.1 177.0 6,099.9 
4 to 5 Category110.9 757.2 713.5 119.3 177.2 182.7 5,581.8 408.6 8,051.2 
6 to 9 Category 0.6    17.7 2.9  21.2 
Total Private Client253.2 1,013.8 778.4 191.6 183.4 220.5 10,945.8 585.6 14,172.3 
Residential Real Estate
Risk Rating:
1 to 3 Category129.0 622.8 545.0 409.7 161.7 793.9 219.5  2,881.6 
4 to 5 Category85.5 584.2 720.7 681.9 275.0 902.4 164.2  3,413.9 
6 to 9 Category 4.7 5.6 2.2 10.8 35.5 3.6  62.4 
Total Residential Real Estate214.5 1,211.7 1,271.3 1,093.8 447.5 1,731.8 387.3  6,357.9 
Residential Real Estate Gross Write-offs(0.7)    (0.1)  (0.8)
Non-U.S.
Risk Rating:
1 to 3 Category3.9 4.0 0.6   5.6 54.5  68.6 
4 to 5 Category8.8 20.6 39.4  18.8 8.2 243.0 7.5 346.3 
6 to 9 Category     0.1   0.1 
Total Non-U.S.12.7 24.6 40.0  18.8 13.9 297.5 7.5 415.0 
Other
Risk Rating:
1 to 3 Category78.1        78.1 
4 to 5 Category162.2        162.2 
Total Other240.3        240.3 
Total Personal720.7 2,250.1 2,089.7 1,285.4 649.7 1,966.2 11,630.6 593.1 21,185.5 
Personal Gross Charge-offs(0.7)    (0.1)  (0.8)
Total Loans$6,596.2 $5,376.5 $4,603.5 $1,949.4 $1,306.4 $2,994.5 $20,032.1 $688.1 $43,546.7 
Total Loans Gross Charge-offs$(0.7)$(4.0)$ $ $ $(0.1)$ $ $(4.8)

51

Notes to Consolidated Financial Statements (unaudited) (continued)
December 31, 2022TERM LOANSREVOLVING LOANSREVOLVING LOANS CONVERTED TO TERM LOANS
(In Millions)20222021202020192018PRIORTOTAL
Commercial
Commercial and Institutional
Risk Rating:
1 to 3 Category$753.3 $1,087.5 $209.8 $159.3 $45.9 $511.3 $6,032.8 $17.7 $8,817.6 
4 to 5 Category744.1 740.6 300.8 191.1 151.4 174.7 1,102.3 32.9 3,437.9 
6 to 9 Category50.8 30.5 — 13.7 — — 64.5 — 159.5 
Total Commercial and Institutional1,548.2 1,858.6 510.6 364.1 197.3 686.0 7,199.6 50.6 12,415.0 
Commercial Real Estate
Risk Rating:
1 to 3 Category318.7 227.4 123.6 123.5 39.8 39.1 113.4 3.0 988.5 
4 to 5 Category968.5 1,040.0 637.8 447.3 153.0 256.9 181.5 17.5 3,702.5 
6 to 9 Category7.7 22.7 — 49.1 — — 2.5 — 82.0 
Total Commercial Real Estate1,294.9 1,290.1 761.4 619.9 192.8 296.0 297.4 20.5 4,773.0 
Non-U.S.
Risk Rating:
1 to 3 Category991.9 46.2 109.6 14.8 — 6.5 1,158.3 — 2,327.3 
4 to 5 Category459.0 — — — — 214.9 89.5 1.8 765.2 
6 to 9 Category0.1 — — 23.1 — — 15.4 — 38.6 
Total Non-U.S.1,451.0 46.2 109.6 37.9 — 221.4 1,263.2 1.8 3,131.1 
Other
Risk Rating:
1 to 3 Category993.9 — — — — — — — 993.9 
4 to 5 Category322.6 — — — — — — — 322.6 
Total Other1,316.5 — — — — — — — 1,316.5 
Total Commercial5,610.6 3,194.9 1,381.6 1,021.9 390.1 1,203.4 8,760.2 72.9 21,635.6 
Personal
Private Client
Risk Rating:
1 to 3 Category395.5 159.9 50.5 313.6 13.4 18.5 5,352.5 28.2 6,332.1 
4 to 5 Category430.3 755.1 192.4 191.3 38.7 160.0 5,728.6 267.2 7,763.6 
6 to 9 Category0.9 — 0.1 — 18.6 — 3.7 — 23.3 
Total Private Client826.7 915.0 243.0 504.9 70.7 178.5 11,084.8 295.4 14,119.0 
Residential Real Estate
Risk Rating:
1 to 3 Category871.6 666.7 567.7 168.1 102.9 750.8 128.4 7.9 3,264.1 
4 to 5 Category354.3 656.7 597.6 290.0 170.9 838.2 180.4 1.0 3,089.1 
6 to 9 Category— 6.8 1.5 1.1 3.7 35.9 11.3 — 60.3 
Total Residential Real Estate1,225.9 1,330.2 1,166.8 459.2 277.5 1,624.9 320.1 8.9 6,413.5 
Non-U.S.
Risk Rating:
1 to 3 Category3.0 3.7 — — 4.6 2.3 124.6 — 138.2 
4 to 5 Category24.2 40.3 — 21.3 3.2 2.9 272.0 7.8 371.7 
6 to 9 Category— — — — — 0.1 — — 0.1 
Total Non-U.S.27.2 44.0 — 21.3 7.8 5.3 396.6 7.8 510.0 
Other
Risk Rating:
1 to 3 Category190.8 — — — — — — — 190.8 
4 to 5 Category24.4 — — — — — — — 24.4 
Total Other215.2 — — — — — — — 215.2 
Total Personal2,295.0 2,289.2 1,409.8 985.4 356.0 1,808.7 11,801.5 312.1 21,257.7 
Total Loans$7,905.6 $5,484.1 $2,791.4 $2,007.3 $746.1 $3,012.1 $20,561.7 $385.0 $42,893.3 

52

Notes to Consolidated Financial Statements (unaudited) (continued)
Loans and leases in the “1 to 3” category are expected to exhibit minimal to modest probabilities of default and are characterized by borrowers having the strongest financial qualities, including above average financial flexibility, cash flows and capital levels. Borrowers assigned these ratings are anticipated to experience very little to moderate financial pressure in adverse down cycledown-cycle scenarios. As a result of these characteristics, borrowers within this category exhibit a minimal to modest likelihood of loss.
Loans and leases in the “4 to 5” category are expected to exhibit moderate to acceptable probabilities of default and are characterized by borrowers with less financial flexibility than those in the “1 to 3” category. Cash flows and capital levels are generally sufficient to allow for borrowers to meet current requirements, but have reduced cushion in adverse down cycle scenarios.fewer financial resources to manage through economic downturns. As a result of these characteristics, borrowers within this category exhibit a moderate likelihood of loss.
Loans and leases in the watch list category have elevated credit risk profiles that are monitored through internal watch lists, and consist of credits with borrower ratings of “6 to 9.” These credits, which include all nonperformingnonaccrual credits, are expected to exhibit minimally acceptable probabilities of default, elevated risk of default, or are currently in default. Borrowers associated with these risk profiles that are not currently in default have limited financial flexibility. Cash flows and capital levels range from acceptable to potentially insufficient to meet current requirements, particularly in adverse down cycle scenarios. As a result of these characteristics, borrowers in this category exhibit an elevated to probable likelihood of loss.
Recognition of Income. Interest income on loans is recorded on an accrual basis unless, in the opinion of management, there is a question as to the ability of the debtor to meet the terms of the loan agreement, or interest or principal is more than 90 days contractually past due and the loan is not well-secured and in the process of collection. Loans meeting such criteria are classified as nonperforming and interest income is recorded on a cash basis. At the time a loan is determined to be nonperforming, interest accrued but not collected is reversed against interest income in the current period. Interest collected on nonperforming loans is applied to principal unless, in the opinion of management, collectability of principal is not in doubt. Management’s assessment of the indicators of loan and lease collectability, and its policies relative to the recognition of interest income, including the suspension and subsequent resumption of income recognition, do not meaningfully vary between loan and lease classes. Nonperforming loans are returned to performing status when factors indicating doubtful collectability no longer exist. Factors considered in returning a loan to performing status are consistent across all classes of loans and leases and, in accordance with regulatory guidance, relate primarily to expected payment performance. Loans are eligible to be returned to performing status when: (i) no principal or interest that is due is unpaid and repayment of the remaining contractual principal and interest is expected or (ii) the loan has otherwise become well-secured (possessing realizable value sufficient to discharge the debt, including accrued interest, in full) and is in the process of collection (through action reasonably expected to result in debt repayment or restoration to a current status in the near future). A loan that has not been brought fully current may be restored to performing status provided there has been a sustained

54

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

period of repayment performance (generally a minimum of six months) by the borrower in accordance with the contractual terms, and Northern Trust is reasonably assured of repayment within a reasonable period of time. Additionally, a loan that has been formally restructured so as to be reasonably assured of repayment and performance according to its modified terms may be returned to accrual status, provided there was a well-documented credit evaluation of the borrower’s financial condition and prospects of repayment under the revised terms and there has been a sustained period of repayment performance (generally a minimum of six months) under the revised terms.
Past Due Status. Past due status is based on how long sincethe length of time from the contractual due date a principal or interest payment has been past due. For disclosure purposes, loans that are 29 days past due or less are reported as current.
The following tables providetable provides balances and delinquency status of performingaccrual and nonperformingnonaccrual loans and leases by segment and class, as well as the total OREOother real estate owned and nonperformingnonaccrual asset balances, as of SeptemberJune 30, 20172023 and December 31, 2016.2022.
Table 44: Delinquency StatusTABLE 48: DELINQUENCY STATUS
ACCRUALNONACCRUAL WITH NO ALLOWANCE
(In Millions)CURRENT30 – 59 DAYS
PAST DUE
60 – 89 DAYS
PAST DUE
90 DAYS
OR MORE
PAST DUE
TOTAL ACCRUALNONACCRUALTOTAL LOANS
June 30, 2023
Commercial
Commercial and Institutional$12,178.3 $18.1 $23.1 $3.1 $12,222.6 $16.4 $12,239.0 $4.1 
Commercial Real Estate5,034.4 1.4  0.5 5,036.3 3.8 5,040.1  
Non-U.S.2,833.7    2,833.7  2,833.7  
Other2,248.4    2,248.4  2,248.4  
Total Commercial22,294.8 19.5 23.1 3.6 22,341.0 20.2 22,361.2 4.1 
Personal
Private Client14,066.1 59.2 33.4 11.6 14,170.3 2.0 14,172.3  
Residential Real Estate6,323.6 0.1 9.3  6,333.0 24.9 6,357.9 23.6 
Non-U.S.415.0    415.0  415.0  
Other240.3    240.3  240.3  
Total Personal21,045.0 59.3 42.7 11.6 21,158.6 26.9 21,185.5 23.6 
Total Loans$43,339.8 $78.8 $65.8 $15.2 $43,499.6 $47.1 $43,546.7 $27.7 
Other Real Estate Owned$0.3 
Total Nonaccrual Assets$47.4 

September 30, 2017
(In Millions)Current 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or
More Past
Due
 
Total
Performing
 Nonperforming 
Total Loans
and Leases
Commercial             
Commercial and Institutional$9,229.0
 $3.2
 $3.4
 $2.0
 $9,237.6
 $8.8
 $9,246.4
Commercial Real Estate3,597.1
 0.5
 
 
 3,597.6
 8.3
 3,605.9
Non-U.S.1,650.8
 
 
 
 1,650.8
 
 1,650.8
Lease Financing, net235.7
 
 
 
 235.7
 
 235.7
Other465.0
 
 
 
 465.0
 
 465.0
Total Commercial15,177.6
 3.7
 3.4
 2.0
 15,186.7
 17.1
 15,203.8
Personal             
Private Client10,644.8
 25.4
 6.8
 1.6
 10,678.6
 0.1
 10,678.7
Residential Real Estate7,260.7
 4.0
 5.0
 5.1
 7,274.8
 120.1
 7,394.9
Other58.7
 
 
 
 58.7
 
 58.7
Total Personal17,964.2
 29.4
 11.8
 6.7
 18,012.1
 120.2
 18,132.3
Total Loans and Leases$33,141.8
 $33.1
 $15.2
 $8.7
 $33,198.8
 $137.3
 $33,336.1
 Other Real Estate Owned  $8.2
  
 Total Nonperforming Assets  $145.5
  
53
December 31, 2016
(In Millions)Current 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or
More Past
Due
 
Total
Performing
 Nonperforming 
Total Loans
and Leases
Commercial             
Commercial and Institutional$9,269.8
 $5.3
 $1.9
 $1.2
 $9,278.2
 $9.2
 $9,287.4
Commercial Real Estate3,974.4
 10.9
 1.0
 4.6
 3,990.9
 11.6
 4,002.5
Non-U.S.1,877.7
 0.1
 
 
 1,877.8
 
 1,877.8
Lease Financing, net293.9
 
 
 
 293.9
 
 293.9
Other205.1
 
 
 
 205.1
 
 205.1
Total Commercial15,620.9
 16.3
 2.9
 5.8
 15,645.9
 20.8
 15,666.7
Personal             
Private Client9,988.7
 40.8
 8.5
 13.7
 10,051.7
 0.3
 10,052.0
Residential Real Estate7,875.9
 44.5
 6.5
 11.5
 7,938.4
 139.1
 8,077.5
Other25.9
 
 
 
 25.9
 
 25.9
Total Personal17,890.5
 85.3
 15.0
 25.2
 18,016.0
 139.4
 18,155.4
Total Loans and Leases$33,511.4
 $101.6
 $17.9
 $31.0
 $33,661.9
 $160.2
 $33,822.1
 Other Real Estate Owned  $5.2
  
 Total Nonperforming Assets  $165.4
  

55

Notes to Consolidated Financial Statements (unaudited) (continued)

ACCRUALNONACCRUAL WITH NO ALLOWANCE
(In Millions)CURRENT30 – 59 DAYS
PAST DUE
60 – 89 DAYS
PAST DUE
90 DAYS
OR MORE
PAST DUE
TOTAL ACCRUALNONACCRUALTOTAL LOANS
December 31, 2022
Commercial
Commercial and Institutional$12,353.7 $40.2 $3.0 $0.7 $12,397.6 $17.4 $12,415.0 $4.4 
Commercial Real Estate4,761.5 1.3 — — 4,762.8 10.2 4,773.0 6.2 
Non-U.S.3,131.1 — — — 3,131.1 — 3,131.1 — 
Other1,316.5 — — — 1,316.5 — 1,316.5 — 
Total Commercial21,562.8 41.5 3.0 0.7 21,608.0 27.6 21,635.6 10.6 
Personal
Private Client13,843.5 192.3 29.9 53.3 14,119.0 — 14,119.0 — 
Residential Real Estate6,373.2 9.6 12.3 0.1 6,395.2 18.3 6,413.5 18.3 
Non-U.S509.9 — — 0.1 510.0 — 510.0 — 
Other215.2 — — — 215.2 — 215.2 — 
Total Personal20,941.8 201.9 42.2 53.5 21,239.4 18.3 21,257.7 18.3 
Total Loans$42,504.6 $243.4 $45.2 $54.2 $42,847.4 $45.9 $42,893.3 $28.9 
Other Real Estate Owned$— 
Total Nonaccrual Assets$45.9 
Impaired Loans. A loan is considered to be impaired when, based on current informationInterest income that would have been recorded for nonaccrual loans in accordance with their original terms was $0.7 million and events, management determines that it is probable that $1.4 million for the three and six months ended June 30, 2023, respectively, and $1.0 million and $2.1 million for the three and six months ended June 30, 2022, respectively.
Northern Trust will be unablemay obtain physical possession of real estate via foreclosure on an in-substance repossession. As of June 30, 2023 and December 31, 2022, Northern Trust held foreclosed real estate properties with an immaterial carrying value, as a result of obtaining physical possession. In addition, as of June 30, 2023 and December 31, 2022, Northern Trust had loans with a carrying value of $1.3 million and $1.1 million, respectively, for which formal foreclosure proceedings were in process.
Loan Modifications to collect all amounts due according toBorrowers Experiencing Financial Difficulty (After the contractualAdoption of Accounting Standards Update No. 2022-02)
For borrowers experiencing financial difficulties, Northern Trust may provide payment relief by modifying the terms of the original loan. Loan modifications to borrowers experiencing financial difficulty involve primarily the extensions of term, deferrals of principal and interest, interest rate concessions, and other modifications or a combination thereof. Northern Trust considers payment deferrals of less than 90 days as insignificant, absent any material modifications to other loan agreement. Impairedterms.
The following table shows the amortized cost basis of loan modifications provided to financially distressed borrowers that impacted the respective cash flows of the underlying loans are identified through ongoing credit managementas of June 30, 2023, disaggregated by relevant class of financing receivable and risk rating processes, includingtype of modification provided.
TABLE 49: LOAN MODIFICATIONS MADE TO BORROWERS EXPERIENCING FINANCIAL DIFFICULTY
THREE MONTHS ENDED JUNE 30, 2023SIX MONTHS ENDED JUNE 30, 2023
(in $ million)LOAN MODIFICATION DETAILAMORTIZED COST BASIS% OF TOTAL SEGMENTAMORTIZED COST BASIS% OF TOTAL SEGMENT
Commercial
Commercial Real Estate(1)
Combination of principal and/or interest deferral and extension of term    
Total Commercial$  %$  %
Personal
Residential Real EstatePrincipal and/or interest deferral$0.2 — %$3.1 0.05 %
Private Client(1)
Extension of term    
Total Personal$0.2  %$3.1 0.05 %
Total Loans$0.2  %$3.1 0.05 %
(1) During the formal reviewthree months ended June 30, 2023, Northern Trust provided $32.5 million of combinations of principal and/or interest deferral and term extensions for the commercial real estate portfolio and $0.2 million of term extensions for the private client portfolio for which the respective loans had no amortized cost basis as of the end of the period. The $32.5 million loan has been fully repaid as of June 30, 2023.
54

Notes to Consolidated Financial Statements (unaudited) (continued)
The following table describes the financial effect of the modifications made to borrowers experiencing financial difficulty.
TABLE 50: FINANCIAL EFFECT OF MODIFICATIONS MADE TO BORROWERS EXPERIENCING FINANCIAL DIFFICULTY
THREE MONTHS ENDED JUNE 30, 2023SIX MONTHS ENDED JUNE 30, 2023
FINANCIAL EFFECTFINANCIAL EFFECT
PRINCIPAL AND INTEREST DEFERRAL
Commercial
Commercial Real EstateNorthern Trust provided a weighted average of 6 months payment deferrals to borrowers for total deferred principal and interest of $32.5 million.Northern Trust provided a weighted average of 6 months payment deferrals to borrowers for total deferred principal and interest of $32.5 million.
Personal
Residential Real EstateNorthern Trust provided payment deferrals to borrowers for immaterial principal and interest deferral amounts.Northern Trust provided a weighted average of 9 months payment deferrals to borrowers for immaterial principal and interest deferral amounts.
TERM EXTENSION
Commercial
Commercial Real EstateNorthern Trust provided weighted average term extensions of 6 months.Northern Trust provided weighted average term extensions of 6 months.
Personal
Private ClientNorthern Trust provided weighted average term extensions of 60 months.Northern Trust provided weighted average term extensions of 60 months.
The effectiveness of Northern Trust’s modification efforts is measured by the loans’ respective past due status under the modified terms as of the end of the period. All of the loans that were modified since the adoption of ASU 2022-02 as of January 1, 2023, were performing in accordance with their modified terms and watch list credits. Payment performance and delinquency status are criticalwere not considered past due for purposes of these disclosures as of June 30, 2023. During the current period, Northern Trust charged off $0.7 million related to modifications to borrowers experiencing financial difficulty that had been processed since the adoption of ASU 2022-02.
There were no undrawn loan commitments or standby letters of credit issued to financially distressed borrowers for which Northern Trust has modified the payment terms of the loans as of June 30, 2023.
The expected credit loss for nonaccrual loans including loan modifications to borrowers experiencing financial difficulty is measured based on either the expected future cash flows, the value of collateral, or other factors in identifying impairment for all loans and leases, particularly those within the residential real estate, private client and personal-other classes. Other key factors considered in identifying impairment of loans and leases within the commercial and institutional, non-U.S., lease financing, and commercial-other classes relate tothat may impact the borrower’s ability to perform underpay. If the termsdiscounted cash flow method is utilized, the credit loss is measured based upon the present value of the obligation as measured through the assessment ofexpected future cash flows, including considerationdiscounted at the effective interest rate based on the post-modification contractual rate. If a loan’s contractual interest rate varies based on subsequent changes in an independent factor, such as an index or rate, the loan’s effective interest rate is calculated based on the factor as it changes over the life of collateral value, market value, and other factors. Athe loan. Northern Trust elected not to project changes in the factor for purposes of estimating expected future cash flows. Further, Northern Trust elected not to adjust the effective interest rate for prepayments. If the loan is alsocollateral dependent, the expected loss is measured based on the fair value of the collateral at the reporting date. If the loan valuation is less than the recorded value of the loan, either an allowance is established or a charge-off is recorded for the difference. The nature and extent of further deterioration in credit quality, including a subsequent default, is considered in the determination of an appropriate level of allowance for credit losses for all loan modifications to be impaired if its terms haveborrowers experiencing financial difficulty.
Troubled Debt Restructurings (Prior to the Adoption of Accounting Standards Update No. 2022-02)
Prior to January 1, 2023, a loan that has been modified as a concession by Northern Trust or a bankruptcy court resulting from the debtor’s financial difficulties is referred to as a troubled debt restructuring (TDR). All TDRs are reported as impaired loansstarting in the calendar year of their restructuring. In subsequent years, a TDR may cease being reported as impaired if the loan was modified at a market rate and has performed according to the modified terms for at least six payment periods. A loan that has been modified at a below market rate will return to performingaccrual status if it satisfies the six payment periodssix-payment-period performance requirement; however, it will remain reported as impaired. Impairmentrequirement.
The expected credit loss is measured based upon the present value of expected future cash flows, discounted at the loan's original effective interest rate based on the original contractual rate. If a loan’s contractual interest rate varies based on subsequent changes in an independent factor, such as an index or rate, the loan’s effective interest rate is calculated based on the factor as it changes over the life of the loan. Northern Trust elected not to project changes in the factor for purposes of estimating expected future cash flows. Further, Northern Trust elected not to adjust the effective interest rate for prepayments. If the loan is collateral dependent, the expected loss is measured based on the fair value of the collateral ifat the loan is collateral dependent, or the loan's observable market value. reporting date.
If the loan valuation is less than the recorded value of the loan, based on the certainty of loss, either a specifican allowance is established or a charge-off is recorded for the difference. Smaller balance (individually less than $1 million) homogeneous loans are collectively evaluated for impairment and excluded from impaired loan disclosures as allowed under applicable accounting standards.evaluated. Northern Trust’s accounting policies for material impairednonaccrual loans is consistent across all classes of loans and leases.

loans.
56
55

Notes to Consolidated Financial Statements (unaudited) (continued)

All loans with TDR modifications are evaluated for additional expected credit losses. The nature and extent of further deterioration in credit quality, including a subsequent default, is considered in the determination of an appropriate level of allowance for credit losses.
The following tables provide information related to impairedIncluded within nonaccrual loans by segmentwere $35.3 million of nonaccrual TDRs, and class.
Table 45: Impaired Loans$39.7 million of accrual TDRs as of the Period End
 As of September 30, 2017 As of December 31, 2016
(In Millions)
Recorded
Investment
 
Unpaid
Principal
Balance
 
Specific
Allowance
 
Recorded
Investment
 
Unpaid
Principal
Balance
 
Specific
Allowance
With No Related Specific Allowance           
Commercial and Institutional$3.7
 $4.5
 $
 $7.9
 $8.7
 $
Commercial Real Estate6.6
 8.4
 
 14.7
 18.6
 
Private Client
 
 
 0.3
 0.3
 
Residential Real Estate95.5
 129.9
 
 125.5
 164.3
 
With a Related Specific Allowance           
Commercial and Institutional4.1
 8.2
 3.3
 
 
 
Commercial Real Estate2.8
 2.8
 0.7
 
 
 
Residential Real Estate14.2
 14.8
 4.6
 7.7
 7.9
 2.1
Total           
Commercial17.2
 23.9
 4.0
 22.6
 27.3
 
Personal109.7
 144.7
 4.6
 133.5
 172.5
 2.1
Total$126.9
 $168.6
 $8.6
 $156.1
 $199.8
 $2.1
 Three Months Ended September 30, Nine Months Ended September 30,
 2017 2016 2017 2016
(In Millions)
Average
Recorded
Investment
 
Interest
Income
Recognized
 
Average
Recorded
Investment
 
Interest
Income
Recognized
 
Average
Recorded
Investment
 
Interest
Income
Recognized
 
Average
Recorded
Investment
 
Interest
Income
Recognized
With No Related Specific Allowance               
Commercial and Institutional$5.1
 $
 $10.6
 $
 $7.9
 $
 $6.1
 $
Commercial Real Estate7.1
 
 17.5
 0.2
 10.2
 0.1
 17.4
 0.3
Lease Financing, net
 
 
 
 
 
 0.6
 0.1
Private Client0.1
 
 2.3
 
 0.1
 
 1.3
 
Residential Real Estate92.7
 0.2
 116.7
 0.4
 109.2
 1.1
 121.0
 1.4
With a Related Specific Allowance               
Commercial and Institutional5.8
 
 6.7
 
 7.9
 
 7.2
 
Commercial Real Estate2.8
 
 
 
 2.5
 
 
 
Lease Financing, net
 
 1.4
 
 
 
 1.4
 
Residential Real Estate16.7
 
 1.6
 
 17.9
 
 1.5
 
Total               
Commercial20.8
 
 36.2
 0.2
 28.5
 0.1
 32.7
 0.4
Personal109.5
 0.2
 120.6
 0.4
 127.2
 1.1
 123.8
 1.4
Total$130.3
 $0.2
 $156.8
 $0.6
 $155.7
 $1.2
 $156.5
 $1.8
Note: Average recorded investment in impaired loans is calculated as the average of the month-end impaired loan balances for the period.
Interest income that would have been recorded for nonperforming loans in accordance with their original terms was $2.2 million and $2.1 million, respectively, for the three months ended September 30, 2017 and 2016, and $7.0 million and $6.3 million, respectively for the nine months ended September 30, 2017 and 2016.
December 31, 2022. There were $4.6 million and $2.3$0.2 million of aggregate undrawn loan commitments and standby letters of credit at September 30, 2017 and December 31, 2016, respectively, 2022, issued to borrowers whose loans were classified as nonperforming or impaired.

57

Notes to Consolidated Financial Statements (unaudited) (continued)

Troubled Debt Restructurings (TDRs). Included within impaired loans were $74.5 million and $85.2 million of nonperforming TDRs, and $26.9 million and $42.4 million of performing TDRs as of September 30, 2017 and December 31, 2016, respectively. All TDRs are reported as impaired loans in the calendar year of their restructuring. In subsequent years, a TDR may cease being reported as impaired if the loan was modified at a market rate and has performed according to the modified terms for at least six months. A loan that has been modified at a below market rate will return to performing status if it satisfies the six-month performance requirement; however, it will remain reported as impaired.
The following tables provide, by segment and class, the number of loans and leases modified in TDRs during the three- and nine- month periods ended September 30, 2017 and 2016, and the recorded investments and unpaid principal balances as of September 30, 2017 and 2016.
Table 46: Modified Troubled Debt Restructurings
($ In Millions)Three Months Ended September 30, 2017 Nine Months Ended September 30, 2017
 
Number of
Loans and Leases
 
Recorded
Investment
 
Unpaid
Principal
Balance
 
Number of
Loans and Leases
 
Recorded
Investment
 
Unpaid
Principal
Balance
Commercial           
Commercial and Institutional2
 $
 $1.0
 2
 $
 $1.0
Commercial Real Estate
 
 
 1
 1.3
 1.3
Total Commercial2
 
 1.0
 3
 1.3
 2.3
Personal           
Private Client
 
 
 1
 
 0.1
Residential Real Estate21
 8.0
 8.3
 57
 20.0
 20.6
Total Personal21
 8.0
 8.3
 58
 20.0
 20.7
Total Loans and Leases23
 $8.0
 $9.3
 61
 $21.3
 $23.0
Note: Period-end balances reflect all paydowns and charge-offs during the period.
($ In Millions)Three Months Ended September 30, 2016 Nine Months Ended September 30, 2016
 
Number of
Loans and Leases
 
Recorded
Investment
 
Unpaid
Principal
Balance
 
Number of
Loans and Leases
 
Recorded
Investment
 
Unpaid
Principal
Balance
Commercial           
Commercial and Institutional1
 $0.1
 $0.1
 5
 $4.1
 $6.2
Commercial Real Estate1
 1.4
 1.4
 7
 8.7
 11.0
Total Commercial2
 1.5
 1.5
 12
 12.8
 17.2
Personal           
Private Client1
 0.1
 0.1
 2
 2.1
 2.1
Residential Real Estate16
 6.2
 6.5
 60
 14.8
 16.1
Total Personal17
 6.3
 6.6
 62
 16.9
 18.2
Total Loans and Leases19
 $7.8
 $8.1
 74
 $29.7
 $35.4
Note: Period-end balances reflect all paydowns and charge-offs during the period.loans.
TDR modifications involve interest rate concessions, extensions of term, deferrals of principal, interest rate concessions, and other modifications. Other modifications typically reflect other nonstandard terms which Northern Trust would not offer in non-troubled situations.
DuringThe following table provides, by segment and class, the three and nine months ended September 30, 2017, the majoritynumber of TDR modifications of loans withinand leases entered into during the three and six months ended June 30, 2022, and the recorded investments and unpaid principal balances as of June 30, 2022.
TABLE 51: TROUBLED DEBT RESTRUCTURINGS
THREE MONTHS ENDED JUNE 30, 2022SIX MONTHS ENDED JUNE 30, 2022
($ In Millions)LOAN MODIFICATION DETAILNUMBER OF
LOANS AND
LEASES
RECORDED
INVESTMENT
UNPAID
PRINCIPAL
BALANCE
NUMBER OF
LOANS AND
LEASES
RECORDED
INVESTMENT
UNPAID
PRINCIPAL
BALANCE
Commercial
Commercial and InstitutionalOther modification— $— $— $0.5 $0.5 
Total Commercial— — — 0.5 0.5 
Personal
Residential Real EstateInterest rate concession, deferrals of principal, and extension of term— — — 0.1 0.1 
Total Personal— — — 0.1 0.1 
Total Loans and Leases— $— $— $0.6 $0.6 
Note: Period-end balances reflect all pay downs and charge-offs during the year.
There were no residential real estate were extension of term, other modifications, deferred principal, and interest rate concessions. During the three and nine months ended September 30, 2017, the majority ofloan TDR modifications within commercial real estate was other modifications. During the three and nine months ended September 30, 2016, the majority of TDR modifications of loans within residential real estate were deferred principal, extension of term, interest rate concessions, and other modifications. During the three and nine months ended September 30, 2016, the majority of TDR modifications within the commercial and institutional and commercial real estate classes were extension of term and other modifications.

58

Notes to Consolidated Financial Statements (unaudited) (continued)

There was one loan modified in a TDR during the twelve months ended June 30, 2017,March 31, 2022, which subsequently became nonperforminghad a payment default during the three and nine months ended September 30, 2017. The total recorded investment for this loan was approximately $0.1 million. The unpaid principal balance for this loan was $0.2 million.
There was one loan modified in a TDR during the twelvesix months ended June 30, 2016, which subsequently became nonperforming during the three and nine months ended September 30, 2016. The total recorded investment and unpaid principal balance for this loan was approximately $0.1 million.2022.
All loans and leases modified in TDRs are evaluated for impairment. The nature and extent of impairment of TDRs, including those that have experienced a subsequent default, is considered in the determination of an appropriate level of allowance for credit losses.
Northern Trust may obtain physical possession of residential real estate collateralizing a consumer mortgage loan via foreclosure on an in-substance repossession. As of September 30, 2017, Northern Trust held foreclosed residential real estate properties with a carrying value of $7.9 million as a result of obtaining physical possession. In addition, as of September 30, 2017, Northern Trust had consumer loans with a carrying value of $16.6 million collateralized by residential real estate property for which formal foreclosure proceedings were in process.
Note 76 – Allowance for Credit Losses
Allowance and Provision for Credit Losses.The allowance for credit losses, losses—which represents management’s best estimate of probablelifetime expected credit losses related to various portfolios subject to credit risk, off-balance-sheet credit exposures, and specific borrower relationships and inherent in the various loan and lease portfolios, undrawn commitments, and standby letters of credit, relationships—is determined by management through a disciplined credit review process. Northern Trust’s accounting policiesTrust measures expected credit losses of financial assets with similar risk characteristics on a collective basis. A financial asset is measured individually if it does not share similar risk characteristics with other financial assets and the related to the estimationallowance is determined through an individual evaluation.
Management’s estimates utilized in establishing an appropriate level of the allowance for credit losses are not dependent on any single assumption. In determining an appropriate allowance level, management evaluates numerous variables, many of which are interrelated or dependent on other assumptions and estimates, and takes into consideration past events, current conditions and reasonable and supportable forecasts.
The results of the charging offcredit reserve estimation methodology are reviewed quarterly by Northern Trust’s Credit Loss Reserve Committee, which receives input from Credit Risk Management, Treasury, Corporate Finance, the Economic Research Department, and each of loans, leasesNorthern Trust’s reporting segments. The Credit Loss Reserve Committee determines the probability weights applied to each forecast approved by Northern Trust’s Macroeconomic Scenario Development Committee, and other extensions of credit deemed uncollectible are consistent across both loanalso reviews and lease segments.
Loans, leases and other extensions of credit deemed uncollectible are chargedapproves qualitative adjustments to the collective allowance in line with Northern Trust’s qualitative adjustment framework.
The Provision for Credit Losses on the consolidated statements of income represents the change in the Allowance for Credit Losses on the consolidated balance sheets after accounting for net charge-offs or recoveries and is the charge to current period earnings. It represents the amount needed to maintain the Allowance for Credit Losses on the consolidated balance sheets at an appropriate level to absorb lifetime expected credit losses. Subsequent recoveries, if any, are creditedlosses related to the allowance. Determinations as to whether an uncollectible loan is charged-off or a specific allowance is established are based on management’s assessment as to the level of certainty regardingfinancial assets in scope. Actual losses may vary from current estimates and the amount of loss.the Provision for Credit Losses may be either greater or less than actual net charge-offs.


59
56

Notes to Consolidated Financial Statements (unaudited) (continued)

The following table provides information regarding changes in the total allowance for credit losses during the three and six months ended June 30, 2023 and 2022.
TABLE 52: CHANGES IN THE ALLOWANCE FOR CREDIT LOSSES
THREE MONTHS ENDED JUNE 30, 2023
(In Millions)LOANSUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDITHELD TO MATURITY DEBT SECURITIESOTHER FINANCIAL ASSETSTOTAL
Balance at Beginning of Period$159.9 $34.3 $16.0 $1.0 $211.2 
Charge-Offs(0.8)   (0.8)
Recoveries0.8    0.8 
Net Recoveries (Charge-Offs)     
(Release of) Provision for Credit Losses(1)
(7.4)(8.3)0.7  (15.0)
Balance at End of Period$152.5 $26.0 $16.7 $1.0 $196.2 
(1) The table excludes a release of credit reserves of $0.5 million for the three months ended June 30, 2023 for AFS debt securities. See further detail in Note 4—Securities.
SIX MONTHS ENDED JUNE 30, 2023
(In Millions)LOANSUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDITHELD TO MATURITY DEBT SECURITIESOTHER FINANCIAL ASSETSTOTAL
Balance at Beginning of Period$144.3 $38.5 $16.0 $0.8 $199.6 
Charge-Offs(4.8)   (4.8)
Recoveries1.9    1.9 
Net Recoveries (Charge-Offs)(2.9)   (2.9)
(Release of) Provision for Credit Losses(1)
11.1 (12.5)0.7 0.2 (0.5)
Balance at End of Period$152.5 $26.0 $16.7 $1.0 $196.2 
(1) There was no provision for credit losses for the six months ended June 30, 2023 for AFS debt securities. See further detail in Note 4—Securities.
THREE MONTHS ENDED JUNE 30, 2022
(In Millions)LOANS AND LEASESUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDITHELD TO MATURITY DEBT SECURITIESOTHER FINANCIAL ASSETSTOTAL
Balance at Beginning of Period$136.3 $37.5 $14.6 $1.1 $189.5 
Charge-Offs— — — — — 
Recoveries5.5 — — — 5.5 
Net Recoveries (Charge-Offs)5.5 — — — 5.5 
(Release of) Provision for Credit Losses(1)
(3.6)6.0 0.8 — 3.2 
Balance at End of Period$138.2 $43.5 $15.4 $1.1 $198.2 
(1) The table excludes a provision for credit losses of $1.3 million for the three months ended June 30, 2022 for AFS debt securities. See further detail in Note 4—Securities.
SIX MONTHS ENDED JUNE 30, 2022
(In Millions)LOANS AND LEASESUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDITHELD TO MATURITY DEBT SECURITIESOTHER FINANCIAL ASSETSTOTAL
Balance at Beginning of Period$138.4 $34.1 $11.2 $1.0 $184.7 
Charge-Offs(0.1)— — — (0.1)
Recoveries8.8 — — — 8.8 
Net Recoveries (Charge-Offs)8.7 — — — 8.7 
(Release of) Provision for Credit Losses(1)
(8.9)9.4 4.2 0.1 4.8 
Balance at End of Period$138.2 $43.5 $15.4 $1.1 $198.2 
(1) The table excludes a provision for credit losses of $1.7 million for the six months ended June 30, 2022 for AFS debt securities. See further detail in Note 4—Securities.
57

Notes to Consolidated Financial Statements (unaudited) (continued)
The release of credit reserves, excluding the release of credit reserves for available for sale debt securities, was $15.0 million in the current quarter, as compared to a $3.2 million provision in the prior-year quarter. The release of credit reserves was primarily due to a decrease in the reserve evaluated on a collective basis, primarily driven by improved credit quality in certain commercial and institutional and certain commercial real estate (CRE) loans, partially offset by expectations for higher economic stress in the CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics.There were no net charge-offs during the three months ended June 30, 2023, as compared to net recoveries of $5.5 million for the three months ended June 30, 2022. For further detail, please see the Allowance for the Loan and Lease Portfolio and the Allowance for Held to Maturity Debt Securities Portfolio sections below.
The release of credit reserves was $0.5 million for the six months ended June 30, 2023, as compared to a $4.8 million provision in the prior-year period. The release of credit reserves was primarily due to a decrease in the collective basis reserve, driven by improvements in credit quality within the commercial and institutional portfolio, partially offset by growth in the size and duration of the CRE portfolio and expectations of higher economic stress in the CRE market, particularly office CRE. The reserve evaluated on a collective basis relates to pooled financial assets sharing similar risk characteristics. There were net charge-offs of $2.9 million during the six months ended June 30, 2023, as compared to net recoveries of $8.7 million during the six months ended June 30, 2022. For further detail, please see the Allowance for the Loan and Lease Portfolio and the Allowance for Held to Maturity Debt Securities Portfolio sections below.
The portion of the allowance assigned to loans, HTM debt securities, and other financial assets is presented as a contra asset in Allowance for Credit Losses on the consolidated balance sheets. The portion of the allowance assigned to undrawn loan commitments and standby letters of credit is reported in Other Liabilities on the consolidated balance sheets. For credit exposure and the associated allowance related to fee receivables, please refer to Note 13—Revenue from Contracts with Clients. For information related to the allowance for AFS debt securities, please refer to Note 4—Securities. For all other financial assets recognized at amortized cost, which include Cash and Due from Banks, Other Central Bank Deposits, Interest Bearing Deposits with Banks, and Other Assets, please refer to the Allowance for Other Financial Assets section within this footnote.
Forecasting and Reversion. Estimating expected lifetime credit losses requires the consideration of the effect of future economic conditions. Northern Trust employs multiple scenarios over a reasonable and supportable period (currently two years) to project future conditions. Key variables determined to be relevant for projecting credit losses on the portfolios in scope include macroeconomic factors, such as corporate profits, unemployment, and real estate price indices, as well as financial market factors such as equity prices, volatility, and credit spreads. For periods beyond the reasonable and supportable period, Northern Trust reverts to its own historical loss experiences on a straight-line basis over four quarters. The primary forecast in the current quarter reflects an outlook of continued slow but steady growth, with inflation, labor markets, and interest rates stabilizing. Recognizing the uncertainty in the primary forecast, an alternative scenario is also considered, which reflects a recession that incorporates the experiences of a wider set of historical economic cycles.
Contractual Term.Northern Trust estimates expected credit losses over the contractual term of the financial assets adjusted for prepayments, unless prepayments are not relevant to specific portfolios or sub-portfolios. Extension and renewal options are typically not considered since it is not Northern Trust’s practice to enter into arrangements where the borrower has the unconditional option to renew, or a conditional extension option whereby the conditions are beyond Northern Trust’s control.
58

Notes to Consolidated Financial Statements (unaudited) (continued)
Allowance for the Loan and Lease Portfolio. The following table provides information regarding changes in the total allowance for credit losses related to loans and leases, including undrawn loan commitments and standby letters of credit, by segment during the three and ninesix months ended SeptemberJune 30, 20172023 and 2016.2022.
Table 47: ChangesTABLE 53: CHANGES IN THE ALLOWANCE FOR CREDIT LOSSES RELATED TO LOANS AND LEASES
THREE MONTHS ENDED JUNE 30, 2023
LOANSUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDIT
(In Millions)COMMERCIALPERSONALTOTALCOMMERCIALPERSONALTOTAL
Balance at Beginning of Period$130.8 $29.1 $159.9 $31.3 $3.0 $34.3 
Charge-Offs (0.8)(0.8)   
Recoveries0.1 0.7 0.8    
Net Recoveries (Charge-Offs)0.1 (0.1)    
(Release of) Provision for Credit Losses(6.9)(0.5)(7.4)(8.0)(0.3)(8.3)
Balance at End of Period$124.0 $28.5 $152.5 $23.3 $2.7 $26.0 
SIX MONTHS ENDED JUNE 30, 2023
LOANSUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDIT
(In Millions)COMMERCIALPERSONALTOTALCOMMERCIALPERSONALTOTAL
Balance at Beginning of Period$116.2 $28.1 $144.3 $36.3 $2.2 $38.5 
Charge-Offs(4.0)(0.8)(4.8)   
Recoveries0.1 1.8 1.9    
Net Recoveries (Charge-Offs)(3.9)1.0 (2.9)   
(Release of) Provision for Credit Losses11.7 (0.6)11.1 (13.0)0.5 (12.5)
Balance at End of Period$124.0 $28.5 $152.5 $23.3 $2.7 $26.0 
THREE MONTHS ENDED JUNE 30, 2022
LOANS AND LEASESUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDIT
(In Millions)COMMERCIALPERSONALTOTALCOMMERCIALPERSONALTOTAL
Balance at Beginning of Period$102.5 $33.8 $136.3 $34.7 $2.8 $37.5 
Charge-Offs— — — — — — 
Recoveries0.2 5.3 5.5 — — — 
Net Recoveries (Charge-Offs)0.2 5.3 5.5 — — — 
(Release of) Provision for Credit Losses(0.2)(3.4)(3.6)5.6 0.4 6.0 
Balance at End of Period$102.5 $35.7 $138.2 $40.3 $3.2 $43.5 
SIX MONTHS ENDED JUNE 30, 2022
LOANS AND LEASESUNDRAWN LOAN COMMITMENTS AND STANDBY LETTERS OF CREDIT
(In Millions)COMMERCIALPERSONALTOTALCOMMERCIALPERSONALTOTAL
Balance at Beginning of Period$105.6 $32.8 $138.4 $31.4 $2.7 $34.1 
Charge-Offs— (0.1)(0.1)— — — 
Recoveries2.4 6.4 8.8 — — — 
Net Recoveries (Charge-Offs)2.4 6.3 8.7 — — — 
(Release of) Provision for Credit Losses(5.5)(3.4)(8.9)8.9 0.5 9.4 
Balance at End of Period$102.5 $35.7 $138.2 $40.3 $3.2 $43.5 
Allowance Related to Credit Exposure Evaluated on a Collective Basis. Expected credit losses are measured on a collective basis as long as the financial assets included in the Allowancerespective pool share similar risk characteristics. If financial assets are deemed to not share similar risk characteristics, an individual assessment is warranted.
The allowance estimation methodology for Credit Lossesthe collective assessment is primarily based on internally developed loss dataspecific to the Northern Trust financial asset portfolio from a historical observation period that includes both expansionary and recessionary periods. The estimation methodology and the related qualitative adjustment framework segregate the loan and lease portfolio into homogenous segments based on similar risk characteristics or risk monitoring methods.
Northern Trust utilizes a quantitative probability of default/loss given default approach for the calculation of its credit allowance on a collective basis. For each of the different parameters, specific credit models or qualitative estimation methodologies for the individual loan segments were developed. For each segment, the probability of defaultand the loss given
 Three Months Ended September 30,
 2017 2016
(In Millions)Commercial Personal Total Commercial Personal Total
Balance at Beginning of Period$97.3
 $81.5
 $178.8
 $112.3
 $114.8
 $227.1
Charge-Offs
 (3.5) (3.5) (0.3) (2.7) (3.0)
Recoveries2.9
 2.2
 5.1
 1.0
 2.8
 3.8
Net (Charge-Offs) Recoveries2.9
 (1.3) 1.6
 0.7
 0.1
 0.8
Provision for Credit Losses(7.8) 0.8
 (7.0) 4.0
 (7.0) (3.0)
Balance at End of Period$92.4
 $81.0
 $173.4
 $117.0
 $107.9
 $224.9
59

 Nine Months Ended September 30,
 2017 2016
(In Millions)Commercial Personal Total Commercial Personal Total
Balance at Beginning of Period$104.9
 $87.1
 $192.0
 $114.8
 $118.5
 $233.3
Charge-Offs(4.6) (8.6) (13.2) (4.7) (8.5) (13.2)
Recoveries5.4
 4.2
 9.6
 3.5
 5.4
 8.9
Net (Charge-Offs) Recoveries0.8
 (4.4) (3.6) (1.2) (3.1) (4.3)
Provision for Credit Losses(13.3) (1.7) (15.0) 3.5
 (7.5) (4.0)
Effect of Foreign Exchange Rates
 
 
 (0.1) 
 (0.1)
Balance at End of Period$92.4
 $81.0
 $173.4
 $117.0
 $107.9
 $224.9
Notes to Consolidated Financial Statements (unaudited) (continued)

default are applied to the exposure at default for each projected quarter to determine the quantitative component of the allowance. The quantitative allowance is then reviewed within the qualitative adjustment framework, through which management applies judgment by assessing internal risk factors, potential limitations in the quantitative methodology, and environmental factors that are not fully contemplated in the forecast to compute an adjustment to the quantitative allowance for each segment of the loan portfolio.
Allowance Related to Credit Exposure Evaluated on an Individual Basis. The allowance is determined through an individual evaluation of loans, and lending-related commitments that have defaulted, generally those with borrower ratings of 8 and 9, that is based on expected future cash flows, the value of collateral, and other factors that may impact the borrower’s ability to pay. For defaulted loans for which the amount of allowance, if any, is determined based on the value of the underlying real estate collateral, third-party appraisals are typically obtained and utilized by management. These appraisals are generally less than twelve months old and are subject to adjustments to reflect management’s judgment as to the realizable value of the collateral.
The following table provides information regarding the recorded investments in loans and leases and the allowance for credit losses for loans and undrawn loan commitments and standby letters of credit by segment as of SeptemberJune 30, 20172023 and December 31, 2016.2022.
Table 48: Recorded Investments in LoansTABLE 54: RECORDED INVESTMENTS IN LOANS
JUNE 30, 2023DECEMBER 31, 2022
(In Millions)COMMERCIALPERSONALTOTALCOMMERCIALPERSONALTOTAL
Loans
Evaluated on an Individual Basis$26.7 $51.2 $77.9 $63.0 $46.1 $109.1 
Evaluated on a Collective Basis22,334.5 21,134.3 43,468.8 21,572.6 21,211.6 42,784.2 
Total Loans22,361.2 21,185.5 43,546.7 21,635.6 21,257.7 42,893.3 
Allowance for Credit Losses on Loans
Evaluated on an Individual Basis9.0 2.0 11.0 10.4 — 10.4 
Evaluated on a Collective Basis115.0 26.5 141.5 105.8 28.1 133.9 
Allowance Assigned to Loans124.0 28.5 152.5 116.2 28.1 144.3 
Allowance for Undrawn Loan Commitments and Standby Letters of Credit
Evaluated on an Individual Basis   — — — 
Evaluated on a Collective Basis23.3 2.7 26.0 36.3 2.2 38.5 
Allowance Assigned to Undrawn Loan Commitments and Standby Letters of Credit23.3 2.7 26.0 36.3 2.2 38.5 
Total Allowance Assigned to Loans and Undrawn Loan Commitments and Standby Letters of Credit$147.3 $31.2 $178.5 $152.5 $30.3 $182.8 
Northern Trust analyzes its exposure to credit losses from both on-balance-sheet and Leases
 September 30, 2017 December 31, 2016
(In Millions)Commercial Personal Total Commercial Personal Total
Loans and Leases           
Specifically Evaluated for Impairment$17.2
 $109.7
 $126.9
 $46.9
 $109.2
 $156.1
Evaluated for Inherent Impairment15,186.6
 18,022.6
 33,209.2
 15,619.8
 18,046.2
 33,666.0
Total Loans and Leases15,203.8
 18,132.3
 33,336.1
 15,666.7
 18,155.4
 33,822.1
Allowance for Credit Losses on Credit Exposures           
Specifically Evaluated for Impairment4.0
 4.6
 8.6
 
 2.1
 2.1
Evaluated for Inherent Impairment71.4
 70.3
 141.7
 83.7
 75.2
 158.9
Allowance Assigned to Loans and Leases75.4
 74.9
 150.3
 83.7
 77.3
 161.0
Allowance for Undrawn Exposures           
Commitments and Standby Letters of Credit17.0
 6.1
 23.1
 21.2
 9.8
 31.0
Total Allowance for Credit Losses$92.4
 $81.0
 $173.4
 $104.9
 $87.1
 $192.0
Note 8 – Pledged Assets
Certain of Northern Trust’s subsidiaries, as required or permitted by law, pledge assets to secure public and trust deposits, repurchase agreements and Federal Home Loan Bank borrowings,off-balance-sheet activity using a consistent methodology for the quantitative framework as well as the qualitative framework. For purposes of estimating the allowance for other purposes, including supportcredit losses for undrawn loan commitments and standby letters of credit, the exposure at default includes an estimated drawdown of unused credit based on credit utilization factors, resulting in a proportionate amount of expected credit losses.
Allowance for Held to Maturity Debt Securities Portfolio. The following table provides information regarding changes in the total allowance for credit losses for HTM debt securities settlement, primarilyduring the three and six months ended June 30, 2023 and 2022.
TABLE 55: CHANGES IN THE ALLOWANCE FOR CREDIT LOSSES RELATED TO HELD TO MATURITY DEBT SECURITIES
THREE MONTHS ENDED JUNE 30, 2023
(In Millions)CORPORATE DEBTNON-U.S. GOVERNMENTSUB-SOVEREIGN, SUPRANATIONAL, AND NON-U.S. AGENCY BONDS
OBLIGATIONS OF STATES AND POLITICAL SUBDIVISIONS(1)
COVERED BONDSOTHERTOTAL
Balance at Beginning of Period$1.9 $3.9 $4.1 $1.3 $0.1 $4.7 $16.0 
(Release of) Provision for Credit Losses(0.5)1.5 (0.7)  0.4 0.7 
Balance at End of Period$1.4 $5.4 $3.4 $1.3 $0.1 $5.1 $16.7 
(1) The allowance for Obligations of States and Political Subdivisions is related to client activities, for potential Federal Reserve Bank discount window borrowings, and for derivative contracts.(non pre-refunded) municipal securities that do not fall under Northern Trust’s zero-loss assumption.

60

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

SIX MONTHS ENDED JUNE 30, 2023
(In Millions)CORPORATE DEBTNON-U.S. GOVERNMENTSUB-SOVEREIGN, SUPRANATIONAL, AND NON-U.S. AGENCY BONDS
OBLIGATIONS OF STATES AND POLITICAL SUBDIVISIONS(1)
COVERED BONDSOTHERTOTAL
Balance at Beginning of Period$1.9 $3.6 $4.0 $1.5 $0.1 $4.9 $16.0 
(Release of) Provision for Credit Losses(0.5)1.8 (0.6)(0.2) 0.2 0.7 
Balance at End of Period$1.4 $5.4 $3.4 $1.3 $0.1 $5.1 $16.7 
As(1) The allowance for Obligations of September 30, 2017,States and Political Subdivisions is related to (non pre-refunded) municipal securities and loans totaling $41.8 billion ($32.2 billion of government-sponsoredthat do not fall under Northern Trust’s zero-loss assumption.
THREE MONTHS ENDED JUNE 30, 2022
(In Millions)CORPORATE DEBTNON-U.S. GOVERNMENTSUB-SOVEREIGN, SUPRANATIONAL, AND NON-U.S. AGENCY BONDSOBLIGATIONS OF STATES AND POLITICAL SUBDIVISIONSCOVERED BONDSOTHERTOTAL
Balance at Beginning of Period$1.6 $3.4 $4.6 $— $0.1 $4.9 $14.6 
Provision for Credit Losses0.2 0.4 0.2 — — — 0.8 
Balance at End of Period$1.8 $3.8 $4.8 $— $0.1 $4.9 $15.4 
SIX MONTHS ENDED JUNE 30, 2022
(In Millions)CORPORATE DEBTNON-U.S. GOVERNMENTSUB-SOVEREIGN, SUPRANATIONAL, AND NON-U.S. AGENCY BONDSOBLIGATIONS OF STATES AND POLITICAL SUBDIVISIONSCOVERED BONDSOTHERTOTAL
Balance at Beginning of Period$1.4 $1.9 $3.0 $— $0.1 $4.8 $11.2 
Provision for Credit Losses0.4 1.9 1.8 — — 0.1 4.2 
Balance at End of Period$1.8 $3.8 $4.8 $— $0.1 $4.9 $15.4 
HTM debt securities classified as U.S. government, government sponsored agency, and othercertain securities $806.4 million ofclassified as obligations of states and political subdivisions are considered to be guarantees of the U.S. government or an agency of the U.S. government and $8.8 billiontherefore an allowance for credit losses is not estimated for such investments as the expected probability of loans) were pledged. This comparesnon-payment of the amortized cost basis is zero.
HTM debt securities classified as “other” relate to $38.9 billion ($28.3 billioninvestments purchased by Northern Trust to fulfill its obligations under the Community Reinvestment Act (CRA). Northern Trust fulfills its obligations under the CRA by making qualified investments for purposes of government-sponsored agencysupporting institutions and programs that benefit low-to-moderate income communities within Northern Trust’s market area. The allowance for CRA investments is assessed using a qualitative estimation approach primarily based on internal historical performance experience and default history of the underlying CRA portfolios to determine a quantitative component of the allowance.
The allowance estimation methodology for all other HTM debt securities $939.8is developed using a combination of external and internal data. The estimation methodology groups securities with shared characteristics for which the probability of default and the loss given default are applied to the total exposure at default to determine a quantitative component of the allowance.
Allowance for Other Financial Assets. The allowance for Other Financial Assets consists of the allowance for Due from Banks, Other Central Bank Deposits, Interest Bearing Deposits with Banks, and Other Assets.The Other Assets category includes other miscellaneous credit exposures reported in Other Assets on the consolidated balance sheets. The allowance estimation methodology for Other Financial Assets primarily utilizes a similar approach as the one used for the HTM debt securities portfolio. It consists of a combination of externally and internally developed loss data, adjusted for the appropriate contractual term. Northern Trust’s portfolio of Other Financial Assets is composed mostly of institutions within the “1 to 3” internal borrower rating category and is expected to exhibit minimal to modest likelihood of loss. The Allowance for Credit Losses related to Other Financial Assets was $1.0 million and $0.8 million as of obligations of statesJune 30, 2023 and political subdivisions and $9.6 billion of loans) at December 31, 2016. 2022, respectively.
Accrued Interest. Accrued interest balances are reported within Other Assets on the consolidated balance sheets. Northern Trust elected not to measure an allowance for credit losses for accrued interest receivables related to its loan and securities portfolio as its policy is to write-off uncollectible accrued interest receivable balances in a timely manner. Accrued interest is written off by reversing interest income during the quarter the financial asset is moved from an accrual to a nonaccrual status.
61

Notes to Consolidated Financial Statements (unaudited) (continued)
The following table provides the amount of accrued interest excluded from the amortized cost basis of the following portfolios.
TABLE 56: ACCRUED INTEREST
(In Millions)JUNE 30, 2023DECEMBER 31, 2022
Loans$227.2 $203.1 
Debt Securities
Held to Maturity77.9 63.2 
Available for Sale169.5 147.1 
Other Financial Assets52.6 43.8 
Total$527.2 $457.2 
The amount of accrued interest reversed through interest income for loans was immaterial for the three and six months ended June 30, 2023 and 2022, and there was no accrued interest reversed through interest income related to any other financial assets for the three and six months ended June 30, 2023 and 2022.
Note 7 – Pledged Assets, Collateral and Restricted Assets
Pledged Assets. For our liquidity management strategy, we may pledge loans and/or securities to various financial market utilities to allow for client payment, clearing and settlement processing as part of our custody services. We may pledge loans or securities to Central Banks, Federal Home Loan Bank (FHLB) of Chicago and third parties for various purposes, for example: securing public and trust deposits, repurchase agreements and borrowings and derivative settlements.
The following table presents the carrying value of Northern Trust's pledged assets by type.
TABLE 57: TYPE OF PLEDGED ASSETS
(In Billions)JUNE 30, 2023DECEMBER 31, 2022
Debt Securities(1)
$32.9 $31.4 
Loans(2)
11.8 11.8 
Total Pledged Assets$44.7 $43.2 
(1) Debt securities are comprised of held to maturity and available for sale securities.
(2) Loans pledged at the FHLB of Chicago and the Federal Reserve Bank of Chicago.
Collateral required for these purposes totaled $8.5$15.0 billion and $9.3$8.7 billion at SeptemberJune 30, 20172023 and December 31, 2016,2022, respectively. Available for sale
The following table presents the AFS debt securities with a total fair value of $520.4 million and $494.7 million, as of September 30, 2017 and December 31, 2016, respectively, were included in the total pledged assets, which were pledged as collateral for agreements to repurchase securities sold transactions and derivative contracts. that are included in pledged assets.
TABLE 58: FAIR VALUE OF AVAILABLE FOR SALE DEBT SECURITIES INCLUDED IN PLEDGED ASSETS
SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASEDERIVATIVE CONTRACTS
(In Millions)JUNE 30, 2023DECEMBER 31, 2022JUNE 30, 2023DECEMBER 31, 2022
Debt Securities
   Available for Sale$995.9 $464.7 $50.4 $34.7 
The secured parties to these transactions have the right to repledge or sell these securities.the securities as it relates to $995.9 million and $464.7 million of the pledged collateral as of June 30, 2023 and December 31, 2022, respectively.
Accepted Collateral.Northern Trust is notaccepts financial assets as collateral that it may, in some instances, be permitted by contract or custom, to repledge or sell securities accepted assell. The collateral is generally obtained under certain reverse repurchase agreements. agreements and derivative contracts.
The totalfollowing table presents the fair value of securities accepted as collateral was $1.4 billion as of September 30, 2017 and $1.8 billion as of December 31, 2016.collateral.
Northern Trust has the right to repledge or sell securities accepted as collateral under certain repurchase agreements.TABLE 59: ACCEPTED COLLATERAL
(In Millions)JUNE 30, 2023DECEMBER 31, 2022
Collateral that may be repledged or sold
   Reverse repurchase agreements(1)(2)
$35,560.8 $12,119.4 
   Derivative contracts3.9 5.0 
Collateral that may not be repledged or sold
Reverse repurchase agreements300.0 450.0 
Total Collateral Accepted$35,864.7 $12,574.4 
(1) The fair value of these securities accepted as collateral that was $235.4 million as of September 30, 2017 and $217.5 million as of December 31, 2016. There was no repledged or sold collateraltotaled $34.6 billion and $11.5 billion at SeptemberJune 30, 2017 or2023 and December 31, 2016.2022, respectively.
(2) This includes collateral accepted as related to the sponsored member program. Refer to Note 20—Commitments and Contingent Liabilities for further information.
62

Notes to Consolidated Financial Statements (unaudited) (continued)
Restricted Assets. Certain cash may be restricted in terms of usage or withdrawal. As a result of the continuing military conflict involving Ukraine and the Russian Federation and related sanctions and legal restrictions in place, cash balances denominated in Russian rubles received for the benefit of certain clients in our Asset Servicing business are subject to distribution restrictions. As of June 30, 2023 and December 31, 2022, these balances totaled $477.7 million and $330.4 million, respectively, and are reported in Cash and Due from Banks on the consolidated balance sheets.
At June 30, 2023 and December 31, 2022, Northern Trust hasheld cash of $583.5 million and $574.2 million, respectively, to meet non-U.S. reserve requirements. As a result of the righteconomic environment arising from the COVID-19 pandemic, the Federal Reserve reduced the U.S. reserve requirement to repledge or sell securities accepted as collateral under derivative contracts. The total fair value of securities accepted as collateral was $4.5 million as of September 30, 2017.zero percent on March 26, 2020. There were no securities accepted as collateral under derivative contracts prior to September 30, 2017.
Deposits maintainedaverage deposits required to meet Federal Reserve Bank reserve requirements averaged $4.0 billion and $2.7 billion for both the three and ninesix months ended SeptemberJune 30, 20172023 and $2.3 billion and $2.0 billion for the three and nine months ended September 30, 2016.2022.
Note 98 – Goodwill and Other Intangibles
TheGoodwill. Changes by reporting segment in the carrying amountsamount of goodwill and other intangibles assets, reflectingGoodwill for the six months ended June 30, 2023, including the effect of foreign exchange rates on non-U.S.-dollar-denominatednon-U.S. dollar denominated balances, by reporting segment at September 30, 2017, and December 31, 2016, were as follows:follows.
Table 49: Goodwill by Reporting SegmentTABLE 60: GOODWILL
(In Millions)ASSET
SERVICING
WEALTH MANAGEMENTTOTAL
Balance at December 31, 2022$611.0 $80.3 $691.3 
Foreign Exchange Rates7.4 0.1 7.5 
Balance at June 30, 2023$618.4 $80.4 $698.8 
(In Millions)September 30,
2017
 December 31,
2016
Corporate & Institutional Services$455.3
 $448.4
Wealth Management71.2
 71.0
Total Goodwill$526.5
 $519.4
Other Intangible Assets Subject to Amortization. The gross carrying amount and accumulated amortization of other intangible assets subject to amortization as of SeptemberJune 30, 20172023 and December 31, 2016,2022 were as follows:follows.
Table 50: Other Intangible AssetsTABLE 61: OTHER INTANGIBLE ASSETS
(In Millions)September 30,
2017
 December 31,
2016
(In Millions)JUNE 30, 2023DECEMBER 31, 2022
Gross Carrying Amount$94.5
 $89.0
Gross Carrying Amount$132.1 $197.9 
Less: Accumulated Amortization56.6
 47.2
Less: Accumulated Amortization57.4 120.3 
Net Book Value$37.9
 $41.8
Net Book Value$74.7 $77.6 
Other intangible assets consist primarily of the value of acquired client relationships and are included within other assets inOther Assets on the consolidated balance sheets. Amortization expense related to other intangible assets totaled $2.3$2.4 million and $7.0$4.7 million for the three and ninesix months ended SeptemberJune 30, 2017,2023, respectively and $2.0$2.2 million and $6.3$4.9 million for the three and ninesix months ended SeptemberJune 30, 2016,2022, respectively. Amortization for the remainder of 20172023 and for the years 2018, 2019, 2020,2024, 2025, 2026, and 20212027 is estimated to be $2.3$4.7 million, $9.3 million, $8.7 million, $8.5 million, $8.5$8.3 million, and $6.0$8.1 million, respectively.

Capitalized Software. The gross carrying amount and accumulated amortization of capitalized software as of June 30, 2023 and December 31, 2022 were as follows.
TABLE 62: CAPITALIZED SOFTWARE
(In Millions)JUNE 30, 2023DECEMBER 31, 2022
Gross Carrying Amount$3,754.7 $3,479.3 
Less: Accumulated Amortization1,759.3 1,517.4 
Net Book Value$1,995.4 $1,961.9 
Capitalized software, which is included in Other Assets on the consolidated balance sheets, consists primarily of purchased software, software licenses, and allowable internal costs, including compensation relating to software developed for internal use. Fees paid for the use of software licenses that are not hosted by Northern Trust are expensed as incurred. Amortization expense, which is included in Equipment and Software on the consolidated statements of income, totaled $122.8 million and $244.1 million for the three and six months ended June 30, 2023, respectively and $104.4 million and $205.9 million for the three and six months ended June 30, 2022, respectively.

61
63

Table of Contents
Notes to Consolidated Financial Statements (unaudited) (continued)

Note 109Reporting Segments
Northern Trust is organized around its two client-focused reporting segments: Asset Servicing and Wealth Management. Asset management and related services are provided to Asset Servicing and Wealth Management clients primarily by the Asset Management business. The revenue and expenses of Asset Management and certain other support functions are allocated fully to Asset Servicing and Wealth Management.
Reporting segment financial information, presented on an internal management reporting basis, is determined by accounting systems used to allocate revenue and expense to each segment, and incorporates processes for allocating assets, liabilities, equity and the applicable interest income and expense utilizing a funds transfer pricing (FTP) methodology. Under the methodology, assets and liabilities receive a funding charge or credit that considers interest rate risk, liquidity risk, and other product characteristics on an instrument level. Additionally, segment information is presented on an FTE basis as management believes an FTE presentation provides a clearer indication of net interest income. The adjustment to an FTE basis has no impact on Net Income.
Revenues, expenses and average assets are allocated to Asset Servicing and Wealth Management, with the exception of non-recurring activities such as certain costs associated with acquisitions, divestitures, litigation, restructuring, and tax adjustments not directly attributable to a specific reporting segment.
Reporting segment results are subject to reclassification when organizational changes are made. The results are also subject to refinements in revenue and expense allocation methodologies, which are typically reflected on a prospective basis.
64

Notes to Consolidated Financial Statements (unaudited) (continued)
The following table showspresents the earnings contributions and average assets of Northern Trust’s reporting segments for the three- and nine- monthsix-month periods ended SeptemberJune 30, 20172023 and 2016.2022.
Table 51: Results of Reporting SegmentsTABLE 63: RESULTS OF REPORTING SEGMENTS
($ In Millions)ASSET SERVICINGWEALTH MANAGEMENTOTHERRECONCILING ITEMSTOTAL CONSOLIDATED
THREE MONTHS ENDED JUNE 30,2023202220232022202320222023202220232022
Noninterest Income
Trust, Investment and Other Servicing Fees$621.2 $642.8 $475.1 $500.6 $ $— $ $— $1,096.3 $1,143.4 
Foreign Exchange Trading Income (Loss)52.0 74.8 (1.9)2.8  —  — 50.1 77.6 
Other Noninterest Income69.7 61.8 40.4 32.8 (10.9)(5.6) — 99.2 89.0 
Total Noninterest Income742.9 779.4 513.6 536.2 (10.9)(5.6)  1,245.6 1,310.0 
Net Interest Income309.3 255.1 215.3 214.7  — (13.1)(11.1)511.5 458.7 
Revenue1,052.2 1,034.5 728.9 750.9 (10.9)(5.6)(13.1)(11.1)1,757.1 1,768.7 
(Release of) Provision for Credit Losses(3.5)0.5 (12.0)4.0  —   (15.5)4.5 
Noninterest Expense849.4 751.1 476.3 439.1 6.2 33.4  — 1,331.9 1,223.6 
Income before Income Taxes206.3 282.9 264.6 307.8 (17.1)(39.0)(13.1)(11.1)440.7 540.6 
Provision for Income Taxes52.6 74.5 73.7 90.7 (4.3)(9.7)(13.1)(11.1)108.9 144.4 
Net Income$153.7 $208.4 $190.9 $217.1 $(12.8)$(29.3)$ $— $331.8 $396.2 
Percentage of Consolidated Net Income46 %53 %58 %54 %(4)%(7)%N/AN/A100 %100 %
Average Assets$111,029.9 $117,047.6 $34,869.7 $37,036.5 $ $— N/AN/A$145,899.6 $154,084.1 
Three Months Ended September 30,Corporate &
Institutional Services
 Wealth
Management
 Treasury and
Other
 Total
Consolidated
($ In Millions)2017 2016 2017 2016 2017 2016 2017 2016($ In Millions)ASSET SERVICINGWEALTH MANAGEMENTOTHERRECONCILING ITEMSTOTAL CONSOLIDATED
SIX MONTHS ENDED
JUNE 30,
SIX MONTHS ENDED
JUNE 30,
2023202220232022202320222023202220232022
Noninterest Income               Noninterest Income
Trust, Investment and Other Servicing Fees$501.1
 $450.8
 $366.8
 $337.5
 $
 $
 $867.9
 $788.3
Trust, Investment and Other Servicing Fees$1,224.2 $1,305.2 $935.7 $1,006.6 $ $— $ $— $2,159.9 $2,311.8 
Foreign Exchange Trading Income47.2
 55.2
 0.7
 0.9
 1.2
 (2.5) 49.1
 53.6
Foreign Exchange Trading Income (Loss)Foreign Exchange Trading Income (Loss)106.9 152.2 (3.8)6.3  —  — 103.1 158.5 
Other Noninterest Income43.8
 41.5
 25.2
 26.3
 5.0
 0.9
 74.0
 68.7
Other Noninterest Income132.9 122.9 74.7 64.6 (11.6)(10.1) — 196.0 177.4 
Net Interest Income*194.0
 138.2
 186.6
 164.1
 (14.4) 7.8
 366.2
 310.1
Revenue*786.1
 685.7
 579.3
 528.8
 (8.2) 6.2
 1,357.2
 1,220.7
Provision for Credit Losses0.8
 4.0
 (7.8) (7.0) 
 
 (7.0) (3.0)
Total Noninterest IncomeTotal Noninterest Income1,464.0 1,580.3 1,006.6 1,077.5 (11.6)(10.1) — 2,459.0 2,647.7 
Net Interest IncomeNet Interest Income621.4 445.2 447.6 412.3  — (26.3)(17.8)1,042.7 839.7 
RevenueRevenue2,085.4 2,025.5 1,454.2 1,489.8 (11.6)(10.1)(26.3)(17.8)3,501.7 3,487.4 
(Release of) Provision for Credit Losses(Release of) Provision for Credit Losses(6.4)8.9 5.9 (2.4) —  — (0.5)6.5 
Noninterest Expense542.1
 487.8
 348.8
 318.0
 44.7
 37.2
 935.6
 843.0
Noninterest Expense1,650.4 1,509.0 945.5 884.2 21.6 36.3  — 2,617.5 2,429.5 
Income before Income Taxes*243.2
 193.9
 238.3
 217.8
 (52.9) (31.0) 428.6
 380.7
Provision for Income Taxes*78.4
 61.8
 90.3
 82.3
 (38.5) (21.0) 130.2
 123.1
Income before Income TaxesIncome before Income Taxes441.4 507.6 502.8 608.0 (33.2)(46.4)(26.3)(17.8)884.7 1,051.4 
Provision for Income TaxesProvision for Income Taxes113.1 126.3 139.8 169.0 (8.3)(11.6)(26.3)(17.8)218.3 265.9 
Net Income$164.8
 $132.1
 $148.0
 $135.5
 $(14.4) $(10.0) $298.4
 $257.6
Net Income$328.3 $381.3 $363.0 $439.0 $(24.9)$(34.8)$ $— $666.4 $785.5 
Percentage of Consolidated Net Income55% 51% 50% 53% (5)% (4)% 100% 100%Percentage of Consolidated Net Income49 %49 %55 %55 %(4)%(4)%N/AN/A100 %100 %
Average Assets$82,250.9
 $75,696.5
 $26,463.0
 $26,601.7
 $12,445.5
 $14,084.3
 $121,159.4
 $116,382.5
Average Assets$111,143.6 $121,114.2 $35,830.2 $36,977.1 $ $— N/AN/A$146,973.8 $158,091.3 
* Non-GAAPNote: Segment results are stated on an FTE basis. The FTE adjustments are eliminated in the reconciling items column with the Corporation’s total consolidated financial measuresresults stated on a fully taxable equivalentGAAP basis. The adjustment to an FTE basis (FTE). Total consolidated includes FTE adjustments of $12.0 million for 2017 and $7.0 millionfor 2016.has no impact on Net Income.

65
Nine Months Ended September 30,Corporate &
Institutional Services
 Wealth
Management
 Treasury and
Other
 Total
Consolidated
($ In Millions)2017 2016 2017 2016 2017 2016 2017 2016
Noninterest Income               
Trust, Investment and Other Servicing Fees$1,451.1
 $1,331.1
 $1,073.2
 $982.6
 $
 $
 $2,524.3
 $2,313.7
Foreign Exchange Trading Income146.9
 169.1
 2.4
 7.0
 (2.2) 2.4
 147.1
 178.5
Other Noninterest Income132.4
 113.0
 77.4
 79.8
 20.4
 124.8
 230.2
 317.6
Net Interest Income*536.5
 417.8
 545.4
 482.8
 (2.9) 30.1
 1,079.0
 930.7
Revenue*2,266.9
 2,031.0
 1,698.4
 1,552.2
 15.3
 157.3
 3,980.6
 3,740.5
Provision for Credit Losses(1.6) 
 (13.4) (4.0) 
 
 (15.0) (4.0)
Noninterest Expense1,598.5
 1,519.9
 1,046.0
 975.2
 123.0
 101.7
 2,767.5
 2,596.8
Income before Income Taxes*670.0
 511.1
 665.8
 581.0
 (107.7) 55.6
 1,228.1
 1,147.7
Provision for Income Taxes*213.0
 158.0
 251.4
 219.1
 (78.7) 4.6
 385.7
 381.7
Net Income$457.0
 $353.1
 $414.4
 $361.9
 $(29.0) $51.0
 $842.4
 $766.0
Percentage of Consolidated Net Income54% 46% 49% 47% (3)% 7% 100% 100%
Average Assets$80,229.1
 $75,589.0
 $26,648.7
 $26,525.6
 $11,818.2
 12,795.3
 $118,696.0
 $114,909.9
* Non-GAAP financial measures stated on a fully taxable equivalent basis (FTE). Total consolidated includes FTE adjustments of $29.8 million for 2017 and $20.1 millionfor 2016.

Further discussion of reporting segment results is provided within the “Reporting Segments” section of Management’s Discussion and Analysis of Financial Condition and Results of Operations.

62

Notes to Consolidated Financial Statements (unaudited) (continued)

Note 1110 – Stockholders’ Equity
Preferred Stock. The Corporation is authorized to issue 1010.0 million shares of preferred stock without par value. The Board of Directors is authorized to fix the particular designations, preferences and relative, participating, optional and other special rights and qualifications, limitations or restrictions for each series of preferred stock issued.
On August 8, 2016,As of June 30, 2023, 5,000 shares of Series D Non-Cumulative Perpetual Preferred Stock (Series D Preferred Stock) and 16,000 shares of Series E Non-Cumulative Perpetual Preferred Stock (Series E Preferred Stock) were outstanding.
Series D Preferred Stock. As of June 30, 2023, the Corporation had issued and soldoutstanding 500,000 depositary shares, (the “Depositary Shares”), each representing a 1/100th ownership interest in a share of Series D Non-Cumulative Perpetual Preferred Stock, (the “Seriesissued in August 2016. Equity related to Series D Preferred Stock”).Stock as of June 30, 2023 and December 31, 2022 was $493.5 million. Shares of the Series D Preferred Stock have no par value and a liquidation preference of $100,000 (equivalent to $1,000 per depositary share). The aggregate proceeds from the public offering of the depositary shares, net of underwriting discounts, commissions and offering expenses, were $493.5 million.
Dividends on the Series D Preferred Stock, which are not mandatory, accrue and are payable on the liquidation preference amount, on a non-cumulative basis, at a rate per annum equal to (i) 4.60% from the original issue date of the Series D Preferred Stock to but excluding October 1, 2026; and (ii) a floating rate equal to Three-Monththe three-month CME Term Secured Overnight Finance Rate, as administered by CME Group Benchmark Administration, Ltd., plus a statutory spread adjustment of 0.26161% (as set forth in the final rule to implement the LIBOR Act) plus 3.202% from and including October 1, 2026. Fixed rate dividends are payable in arrears on the 1stfirst day of April and October of each year, through and including October 1, 2026, and floating rate dividends will be payable in arrears on the 1stfirst day of January, April, July and October of each year, commencing on January 1, 2027.
The Series DE Preferred Stock has no maturity date and is redeemable at the Corporation’s option, in whole or in part, on any dividend payment date on or after October 1, 2026. The Series D Preferred Stock is redeemable at the Corporation’s option in whole, but not in part, including prior to October 1, 2026, within 90 daysStock. As of a regulatory capital treatment event, as described in the Series D Preferred Stock Certificate of Designation.
On July 18, 2017,June 30, 2023, the Corporation declared a cash dividend of $2,300 per share of Series D Preferred Stock payable on October 1, 2017, to stockholders of record as of September 15, 2017.
As of September 30, 2017, the Corporation also had issued and outstanding 1616.0 million depositary shares, each representing 1/1000th1,000th ownership interest in a share of Series C Non-Cumulative PerpetualE Preferred Stock, (“Series C Preferred Stock”), issued in August 2014.November 2019. Equity related to Series CE Preferred Stock as of SeptemberJune 30, 20172023 and December 31, 2016 totaled $388.52022 was $391.4 million. Shares of the Series CE Preferred Stock hashave no par value and has a liquidation preference of $25,000 (equivalent to $25 per depositary share).
Dividends on the Series CE Preferred Stock, which are not mandatory, will accrue and arebe payable on the liquidation preference amount, on a non-cumulative basis, quarterly in arrears on the first day of January, April, July and October of each year, at a rate per annum equal to 5.85%4.70%. On July 18, 2017,April 26, 2023, the Corporation declared a cash dividend of $365.625$293.75 per share of Series CE Preferred Stock payable on OctoberJuly 1, 2017,2023, to stockholders of record as of SeptemberJune 15, 2017.2023.
The Series C Preferred Stock has no maturity date and is redeemable at the Corporation’s option, in whole or in part, on any dividend payment date on or after October 1, 2019. The Series C Preferred stock is redeemable at the Corporation’s option, in whole, but not in part, including prior to October 1, 2019, within 90 days of a regulatory capital treatment event, as described in the Series C Preferred Stock Certificate of Designation.
Shares of the Series C Preferred Stock and Series D Preferred Stock rank senior to the Corporation’s common stock, and will rank at least equally with any other series of preferred stock it may issue (except for any senior series that may be issued with the requisite consent of the holders of the Series C Preferred Stock and Series D Preferred Stock, respectively) and all other parity stock, with respect to the payment of dividends and distributions upon liquidation, dissolution or winding up.
Common Stock. During the three and nine months ended September 30, 2017, the Corporation repurchased 1,411,696 shares of common The Corporation’s current stock including 43,871 shares withheld related to share-based compensation, at a total cost of $124.8 million ($88.43 average price per share) and 3,983,690 shares of common stock, including 459,082 shares withheld related to share-based compensation, at a total cost of $352.5 million ($88.50 average price per share), respectively. Repurchases through July 18, 2017 were made pursuant to the repurchase program announced by the Corporation on April 21, 2015, under which the Corporation’s Board of Directors authorized the Corporationauthorization to repurchase up to 15.025.0 million shares ofwas approved by the Corporation’s common stock. This program was terminated and replaced with a new repurchase program, announced on July 18, 2017, under which the Corporation’s Board of Directors authorizedin October 2021. Shares are repurchased by the Corporation to, repurchase up to 9.5 million shares ofamong other things, manage the Corporation’s common stock. Repurchases after July 18, 2017 were made pursuant to the new repurchase program, which has no expiration date. Shares repurchased by the Corporationcapital levels. Repurchased shares are used for general purposes, including management of the Corporation’s capital levels and the

63

Notes to Consolidated Financial Statements (unaudited) (continued)

issuance of shares under stock option and other incentive plans of the Corporation.plans. The new repurchase authorization approved by the Board of Directors has no expiration date.
Under For the Corporation’s 2017 Capital Plan, which was reviewed without objection by the Federal Reserve,three and six months ended June 30, 2023, the Corporation may repurchase up to $625.2 millionrepurchased 1,361,828 and 2,412,055 shares of common stock, after Septemberrespectively, at a total cost of $99.3 million ($72.91 average price per share) and $200.2 million ($82.98 average price per share), respectively, including 14,596 and 341,407 shares, respectively, withheld to satisfy tax withholding obligations related to share-based compensation. For the three and six months ended June 30, 2017 through June 2018.2022, the Corporation repurchased 2,844 and 298,254 shares of common stock, respectively, at a total cost of $0.3 million ($110.36 average price per share) and $34.1 million ($114.54 average prices per share), respectively, all of which were shares withheld to satisfy tax withholding obligations related to share-based compensation.
66

Notes to Consolidated Financial Statements (unaudited) (continued)
Note 1211 – Accumulated Other Comprehensive Income (Loss)
The following tables summarize the components of accumulated other comprehensive income (loss)Accumulated Other Comprehensive Income (Loss) (AOCI) at SeptemberJune 30, 20172023 and 2016,2022, and changes during the three-three and nine- month periodssix months then ended.
Table 52: Summary of Changes in Accumulated Other Comprehensive Income (Loss)TABLE 64: SUMMARY OF CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
THREE MONTHS ENDED JUNE 30, 2023
(In Millions)
NET UNREALIZED GAINS (LOSSES) ON AVAILABLE FOR SALE DEBT SECURITIES(1)
NET UNREALIZED GAINS (LOSSES) ON CASH FLOW HEDGESNET FOREIGN CURRENCY ADJUSTMENTNET PENSION AND OTHER POSTRETIREMENT BENEFIT ADJUSTMENTSTOTAL
Balance at March 31, 2023$(1,187.4)$1.1 $187.3 $(367.2)$(1,366.2)
Net Change(42.0)(0.6)1.9 1.0 (39.7)
Balance at June 30, 2023$(1,229.4)$0.5 $189.2 $(366.2)$(1,405.9)
(In Millions)Balance at September 30, 2017 Net Change Balance at December 31, 2016
Net Unrealized Gains (Losses) on Securities Available for Sale*$(13.7) $18.7
 $(32.4)
Net Unrealized Gains (Losses) on Cash Flow Hedges1.2
 (4.9) 6.1
Net Foreign Currency Adjustments(8.0) 10.5
 (18.5)
Net Pension and Other Postretirement Benefit Adjustments(314.6) 10.6
 (325.2)
Total$(335.1) $34.9
 $(370.0)
(In Millions)Balance at September 30, 2016 Net Change Balance at December 31, 2015
Net Unrealized Gains (Losses) on Securities Available for Sale$63.3
 $94.3
 $(31.0)
Net Unrealized Gains (Losses) on Cash Flow Hedges3.6
 6.6
 (3.0)
Net Foreign Currency Adjustments(16.9) 0.7
 (17.6)
Net Pension and Other Postretirement Benefit Adjustments(309.7) 11.4
 (321.1)
Total$(259.7) $113.0
 $(372.7)
* -(1) Includes net unrealized gains (losses) on debt securities transferred from availableAFS to HTM. Refer to Note 4—Securities for salefurther information.
SIX MONTHS ENDED JUNE 30, 2023
(In Millions)
NET UNREALIZED GAINS (LOSSES) ON AVAILABLE FOR SALE DEBT SECURITIES(1)
NET UNREALIZED GAINS (LOSSES) ON CASH FLOW HEDGESNET FOREIGN CURRENCY ADJUSTMENTNET PENSION AND OTHER POSTRETIREMENT BENEFIT ADJUSTMENTSTOTAL
Balance at December 31, 2022$(1,367.6)$1.2 $164.6 $(367.4)$(1,569.2)
Net Change138.2 (0.7)24.6 1.2 163.3 
Balance at June 30, 2023$(1,229.4)$0.5 $189.2 $(366.2)$(1,405.9)
(1) Includes net unrealized gains (losses) on debt securities transferred from AFS to heldHTM. Refer to maturity during the three months ended September 30, 2017.Note 4—Securities for further information.

THREE MONTHS ENDED JUNE 30, 2022
(In Millions)
NET UNREALIZED GAINS (LOSSES) ON AVAILABLE FOR SALE DEBT SECURITIES(1)
NET UNREALIZED GAINS (LOSSES) ON CASH FLOW HEDGESNET FOREIGN CURRENCY ADJUSTMENTNET PENSION AND OTHER POSTRETIREMENT BENEFIT ADJUSTMENTSTOTAL
Balance at March 31, 2022$(761.3)$(3.8)$147.3 $(289.2)$(907.0)
Net Change(533.4)4.4 (9.7)(64.9)(603.6)
Balance at June 30, 2022$(1,294.7)$0.6 $137.6 $(354.1)$(1,510.6)

(1) Includes net unrealized gains (losses) on debt securities transferred from AFS to HTM. Refer to Note 4—Securities for further information.

SIX MONTHS ENDED JUNE 30, 2022
(In Millions)
NET UNREALIZED GAINS (LOSSES) ON AVAILABLE FOR SALE DEBT SECURITIES(1)
NET UNREALIZED GAINS (LOSSES) ON CASH FLOW HEDGESNET FOREIGN CURRENCY ADJUSTMENTNET PENSION AND OTHER POSTRETIREMENT BENEFIT ADJUSTMENTSTOTAL
Balance at December 31, 2021$107.1 $(2.4)$155.2 $(295.5)$(35.6)
Net Change(1,401.8)3.0 (17.6)(58.6)(1,475.0)
Balance at June 30, 2022$(1,294.7)$0.6 $137.6 $(354.1)$(1,510.6)
(1) Includes net unrealized gains (losses) on debt securities transferred from AFS to HTM. Refer to Note 4—Securities for further information.
64
67

Notes to Consolidated Financial Statements (unaudited) (continued)

TABLE 65: DETAILS OF CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
Table 53: Details
THREE MONTHS ENDED JUNE 30,20232022
(In Millions)PRE-TAXTAXAFTER TAXPRE-TAXTAXAFTER TAX
Unrealized Gains (Losses) on Available for Sale Debt Securities
Unrealized Gains (Losses) on Available for Sale Debt Securities$(88.7)$23.9 $(64.8)$(731.2)$188.5 $(542.7)
Reclassification Adjustments for (Gains) Losses Included in Net Income:
Interest Income on Debt Securities(1)
30.4 (7.6)22.8 12.4 (3.1)9.3 
Net Change$(58.3)$16.3 $(42.0)$(718.8)$185.4 $(533.4)
Unrealized Gains (Losses) on Cash Flow Hedges
Foreign Exchange Contracts$1.4 $(0.4)$1.0 $4.4 $(1.1)$3.3 
Reclassification Adjustment for (Gains) Losses Included in Net Income(3)
(2.2)0.6 (1.6)1.5 (0.4)1.1 
Net Change$(0.8)$0.2 $(0.6)$5.9 $(1.5)$4.4 
Foreign Currency Adjustments
Foreign Currency Translation Adjustments$26.7 $(0.7)$26.0 $(163.7)$2.4 $(161.3)
Long-Term Intra-Entity Foreign Currency Transaction Gains (Losses)(1.6)0.4 (1.2)(1.8)0.5 (1.3)
Net Investment Hedge Gains (Losses)(30.6)7.7 (22.9)204.3 (51.4)152.9 
Net Change$(5.5)$7.4 $1.9 $38.8 $(48.5)$(9.7)
Pension and Other Postretirement Benefit Adjustments
Net Actuarial Gains (Losses)$(0.2)$ $(0.2)$(114.4)$28.8 $(85.6)
Reclassification Adjustment for (Gains) Losses Included in Net Income(4)
Amortization of Net Actuarial Loss1.6 (0.4)1.2 7.6 (1.9)5.7 
Amortization of Prior Service Cost (Credit)   (0.2)— (0.2)
Settlement Loss   20.3 (5.1)15.2 
Net Change$1.4 $(0.4)$1.0 $(86.7)$21.8 $(64.9)
Total Net Change$(63.2)$23.5 $(39.7)$(760.8)$157.2 $(603.6)
SIX MONTHS ENDED JUNE 30,20232022
(In Millions)PRE-TAXTAXAFTER TAXPRE-TAXTAXAFTER TAX
Unrealized Gains (Losses) on Available for Sale Debt Securities
Unrealized Gains (Losses) on Available for Sale Debt Securities$140.6 $(36.4)$104.2 $(1,902.7)$489.9 $(1,412.8)
Reclassification Adjustments for (Gains) Losses Included in Net Income:
Interest Income on Debt Securities(1)
52.3 (13.1)39.2 14.7 (3.7)11.0 
Net Gains on Debt Securities(2)
(6.9)1.7 (5.2)— — — 
Net Change$186.0 $(47.8)$138.2 $(1,888.0)$486.2 $(1,401.8)
Unrealized Gains (Losses) on Cash Flow Hedges
Foreign Exchange Contracts$1.9 $(0.5)$1.4 $0.8 $(0.2)$0.6 
Reclassification Adjustment for (Gains) Losses Included in Net Income(3)
(2.8)0.7 (2.1)3.2 (0.8)2.4 
Net Change$(0.9)$0.2 $(0.7)$4.0 $(1.0)$3.0 
Foreign Currency Adjustments
Foreign Currency Translation Adjustments$73.5 $(0.5)$73.0 $(214.0)$0.6 $(213.4)
Long-Term Intra-Entity Foreign Currency Transaction Gains (Losses)(1.6)0.4 (1.2)(1.8)0.5 (1.3)
Net Investment Hedge Gains (Losses)(63.1)15.9 (47.2)263.7 (66.6)197.1 
Net Change$8.8 $15.8 $24.6 $47.9 $(65.5)$(17.6)
Pension and Other Postretirement Benefit Adjustments
Net Actuarial Gains (Losses)$(1.3)$0.1 $(1.2)$(113.6)$28.2 $(85.4)
Reclassification Adjustment for (Gains) Losses Included in Net Income(4)
Amortization of Net Actuarial Loss3.2 (0.8)2.4 15.2 (3.8)11.4 
Amortization of Prior Service Cost (Credit)   (0.5)0.1 (0.4)
Settlement Loss   21.0 (5.2)15.8 
Net Change$1.9 $(0.7)$1.2 $(77.9)$19.3 $(58.6)
Total Net Change$195.8 $(32.5)$163.3 $(1,914.0)$439.0 $(1,475.0)
(1) The before-tax reclassification adjustment is related to the unrealized gains (losses) amortization on AFS debt securities that were transferred to HTM debt securities during the second quarter of Changes2021 and third quarter of 2022. Refer to Note 4—Securities for further information.
(2) The net gains (losses) on AFS debt securities before-tax reclassification adjustment is recorded in Accumulated Other Comprehensive Income (Loss)Investment Security Gains (Losses), net on the consolidated statements of income.
(3)    See Note 21—Derivative Financial Instruments for the location of the reclassification adjustment related to cash flow hedges.
(4) The pension and other postretirement benefit before-tax reclassification adjustment is recorded in Employee Benefits expense on the consolidated statements of income.
68
 Three Months Ended September 30,
 2017 2016
(In Millions)Before Tax Tax Effect After Tax Before Tax Tax Effect After Tax
Unrealized Gains (Losses) on Securities Available for Sale           
Unrealized Gains (Losses) on Securities Available for Sale$(3.4) $1.0
 $(2.4) $(22.3) $8.4
 $(13.9)
Reclassification Adjustment for (Gains) Losses Included in Net Income0.4
 (0.2) 0.2
 (0.2) 0.2
 
Net Change(3.0) 0.8
 (2.2) (22.5) 8.6
 (13.9)
Unrealized Gains (Losses) on Cash Flow Hedges           
Unrealized Gains (Losses) on Cash Flow Hedges2.9
 (1.0) 1.9
 (6.3) 3.5
 (2.8)
Reclassification Adjustment for (Gains) Losses Included in Net Income(6.1) 2.3
 (3.8) 4.6
 (1.7) 2.9
Net Change(3.2) 1.3
 (1.9) (1.7) 1.8
 0.1
Foreign Currency Adjustments           
Foreign Currency Translation Adjustments47.3
 (6.0) 41.3
 (11.7) (0.9) (12.6)
Long-Term Intra-Entity Foreign Currency Transaction Gains (Losses)0.6
 (0.2) 0.4
 0.8
 (0.3) 0.5
Net Investment Hedge Gains (Losses)(62.3) 24.2
 (38.1) 4.1
 (1.5) 2.6
Net Change(14.4) 18.0
 3.6
 (6.8) (2.7) (9.5)
Pension and Other Postretirement Benefit Adjustments           
Net Actuarial Gain (Loss)(0.7) 0.2
 (0.5) 
 
 
Reclassification Adjustment for (Gains) Losses Included in Net Income7.4
 (2.6) 4.8
 6.3
 (3.0) 3.3
Net Change$6.7
 $(2.4) $4.3
 $6.3
 $(3.0) $3.3


65

Notes to Consolidated Financial Statements (unaudited) (continued)

 Nine Months Ended September 30,
 2017 2016
(In Millions)Before Tax Tax Effect After Tax Before Tax Tax Effect After Tax
Unrealized Gains (Losses) on Securities Available for Sale           
Unrealized Gains (Losses) on Securities Available for Sale$29.6
 $(11.5) $18.1
 $152.2
 $(57.6) $94.6
Reclassification Adjustment for (Gains) Losses Included in Net Income1.0
 (0.4) 0.6
 (0.5) 0.2
 (0.3)
Net Change30.6
 (11.9) 18.7
 151.7
 (57.4) 94.3
Unrealized Gains (Losses) on Cash Flow Hedges           
Unrealized Gains (Losses) on Cash Flow Hedges20.6
 (15.3) 5.3
 3.7
 (0.3) 3.4
Reclassification Adjustment for (Gains) Losses Included in Net Income(16.4) 6.2
 (10.2) 5.2
 (2.0) 3.2
Net Change4.2
 (9.1) (4.9) 8.9
 (2.3) 6.6
Foreign Currency Adjustments           
Foreign Currency Translation Adjustments136.4
 (6.1) 130.3
 (52.7) (2.3) (55.0)
Long-Term Intra-Entity Foreign Currency Transaction Gains (Losses)1.0
 (0.4) 0.6
 2.0
 (0.8) 1.2
Net Investment Hedge Gains (Losses)(194.7) 74.3
 (120.4) 87.6
 (33.1) 54.5
Net Change(57.3) 67.8
 10.5
 36.9
 (36.2) 0.7
Pension and Other Postretirement Benefit Adjustments           
Net Actuarial Gain (Loss)(3.2) 0.3
 (2.9) 
 
 
Reclassification Adjustment for (Gains) Losses Included in Net Income20.6
 (7.1) 13.5
 19.1
 (7.7) 11.4
Net Change$17.4
 $(6.8) $10.6
 $19.1
 $(7.7) $11.4

The following table provides the location and before-tax amounts of reclassifications out of AOCI during the three and nine months ended September 30, 2017.
Table 54: Reclassification Adjustment out of Accumulated Other Comprehensive Income
(In Millions)
Location of
Reclassification Adjustments Recognized
in Income
Amount of Reclassification
Adjustments Recognized
in Income
Three Months Ended Nine Months Ended
September 30, 2017
Securities Available for Sale    
Realized (Gains) Losses on Securities Available for SaleInvestment Security Gains (Losses), net$0.4
 $1.0
Realized Gains on Cash Flow Hedges    
Foreign Exchange ContractsOther Operating Income/Expense(6.1) (16.4)
Pension and Other Postretirement Benefit Adjustments    
Amortization of Net Actuarial LossEmployee Benefits7.4
 20.8
Amortization of Prior Service CostEmployee Benefits
 (0.2)
Gross Reclassification Adjustment $7.4
 $20.6

66

Notes to Consolidated Financial Statements (unaudited) (continued)

Note 1312 – Net Income Per Common Share Computations
The computations of net income per common share are presented in the following table.
Table 55: Net Income per Common ShareTABLE 66: NET INCOME PER COMMON SHARE
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
($ In Millions Except Per Common Share Information)2023202220232022
Basic Net Income Per Common Share
Average Number of Common Shares Outstanding207,638,671 208,383,991 207,911,242 208,205,469 
Net Income$331.8 $396.2 $666.4 $785.5 
Less: Dividends on Preferred Stock4.7 4.7 20.9 20.9 
Net Income Applicable to Common Stock327.1 391.5 645.5 764.6 
Less: Earnings Allocated to Participating Securities3.4 3.2 6.6 6.3 
Earnings Allocated to Common Shares Outstanding323.7 388.3 638.9 758.3 
Basic Net Income Per Common Share$1.56 $1.86 $3.07 $3.64 
Diluted Net Income Per Common Share
Average Number of Common Shares Outstanding207,638,671 208,383,991 207,911,242 208,205,469 
Plus: Dilutive Effect of Share-based Compensation177,344 494,359 359,435 638,465 
Average Common and Potential Common Shares207,816,015 208,878,350 208,270,677 208,843,934 
Earnings Allocated to Common and Potential Common Shares$323.6 $388.3 $638.8 $758.3 
Diluted Net Income Per Common Share1.56 1.86 3.07 3.63 
 Three Months Ended September 30, Nine Months Ended September 30,
($ In Millions Except Per Common Share Information)2017 2016 2017 2016
Basic Net Income Per Common Share       
Average Number of Common Shares Outstanding228,010,866
 226,540,086
 228,751,804
 227,561,218
Net Income$298.4
 $257.6
 $842.4
 $766.0
Less: Dividends on Preferred Stock17.3
 5.9
 43.9
 17.6
Net Income Applicable to Common Stock281.1
 251.7
 798.5
 748.4
Less: Earnings Allocated to Participating Securities4.4
 4.8
 13.3
 13.7
Earnings Allocated to Common Shares Outstanding276.7
 246.9
 785.2
 734.7
Basic Net Income Per Common Share$1.21
 $1.09
 $3.43
 $3.23
Diluted Net Income Per Common Share       
Average Number of Common Shares Outstanding228,010,866
 226,540,086
 228,751,804
 227,561,218
Plus: Dilutive Effect of Share-based Compensation1,302,779
 1,515,109
 1,437,485
 1,479,400
Average Common and Potential Common Shares229,313,645
 228,055,195
 230,189,289
 229,040,618
Earnings Allocated to Common and Potential Common Shares$276.7
 $247.0
 $785.2
 $734.8
Diluted Net Income Per Common Share1.20
 1.08
 3.41
 3.21
Note:    For the three and six months ended SeptemberJune 30, 2017,2023 and 2022, there were no common stock equivalents excluded in the computation of diluted net income per share. Common stock equivalents
Note 13 – Revenue from Contracts with Clients
Trust, Investment, and Other Servicing Fees. Custody and Fund Administration income is comprised of 154,411revenues received from our core asset servicing business for providing custody, fund administration, and middle-office-related services, primarily to Asset Servicing clients. Investment Management and Advisory income contains revenue received from providing asset management and related services to Wealth Management and Asset Servicing clients and to Northern Trust sponsored funds. Securities Lending income represents revenues generated from securities lending arrangements that Northern Trust enters into as agent, mainly with Asset Servicing clients. Other income largely consists of revenues received from providing employee benefit, investment risk and analytic and other services to Asset Servicing and Wealth Management clients.
Other Noninterest Income. Treasury Management income represents revenues received from providing cash and liquidity management services to Asset Servicing and Wealth Management clients. The portion of Security Commissions and Trading Income that relates to revenue from contracts with clients is primarily comprised of commissions earned from providing securities brokerage services to Wealth Management and Asset Servicing clients. The portion of Other Operating Income that relates to revenue from contracts with clients is mainly comprised of service fees for banking-related services provided to Wealth Management and Asset Servicing clients.
Performance Obligations. Clients are typically charged monthly or quarterly in arrears based on the nine months ended September 30, 2017,fee arrangement agreed to with each client; payment terms will vary depending on the client and 334,184services offered.
Substantially all revenues generated from contracts with clients for asset servicing, asset management, securities lending, treasury management and 1,480,118banking-related services are recognized on an accrual basis, over the period in which services are provided. The nature of Northern Trust’s performance obligations is to provide a series of distinct services in which the customer simultaneously receives and consumes the benefits of the promised services as they are performed. Fee arrangements are mainly comprised of variable amounts based on market value of client assets managed and serviced, transaction volumes, number of accounts, and securities lending volume and spreads. Revenue is recognized using the output method in an amount that reflects the consideration to which Northern Trust expects to be entitled in exchange for providing each month or quarter of service. For contracts with multiple performance obligations, revenue is allocated to each performance obligation based on the threeprice agreed to with the client, representing its relative standalone selling price.
Security brokerage revenue is primarily represented by securities commissions received in exchange for providing trade execution related services. Control is transferred at a point in time, on the trade date of the transaction, and nine months ended September 30, 2016, respectively, werefees are typically variable based on transaction volumes and security types.
Northern Trust’s contracts with its clients are typically open-ended arrangements and are therefore considered to have an original duration of less than one year. Northern Trust has elected the practical expedient to not included indisclose the computationvalue of diluted net income per common share because their inclusion would have been antidilutive.

remaining performance obligations for contracts with an original expected duration of one year or less.
67
69

Notes to Consolidated Financial Statements (unaudited) (continued)

The following table presents revenues disaggregated by major revenue source.
TABLE 67: REVENUE DISAGGREGATION
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions)2023202220232022
Noninterest Income
       Trust, Investment and Other Servicing Fees
Custody and Fund Administration$458.1 $464.4 $899.7 $948.4 
Investment Management and Advisory558.8 597.3 1,099.3 1,200.5 
Securities Lending21.5 21.6 40.6 40.5 
Other57.9 60.1 120.3 122.4 
Total Trust, Investment and Other Servicing Fees$1,096.3 $1,143.4 $2,159.9 $2,311.8 
Other Noninterest Income
       Foreign Exchange Trading Income$50.1 $77.6 $103.1 $158.5 
       Treasury Management Fees7.9 10.6 16.3 21.7 
       Security Commissions and Trading Income36.1 32.8 70.8 69.0 
       Other Operating Income55.2 45.6 102.0 86.7 
Investment Security Gains (Losses), net — 6.9 — 
Total Other Noninterest Income$149.3 $166.6 $299.1 $335.9 
Total Noninterest Income$1,245.6 $1,310.0 $2,459.0 $2,647.7 
On the consolidated statements of income, Trust, Investment and Other Servicing Fees and Treasury Management Fees represent revenue from contracts with clients. For the three months ended June 30, 2023, revenue from contracts with clients also includes $29.0 million of the $36.1 million total Security Commissions and Trading Income and $10.2 million of the $55.2 million total Other Operating Income. For the six months ended June 30, 2023, revenue from contracts with clients also includes $58.9 million of the $70.8 million total Security Commissions and Trading Income and $19.3 million of the $102.0 million total Other Operating Income.
For the three months ended June 30, 2022, revenue from contracts with clients also includes $27.3 million of the $32.8 million total Security Commissions and Trading Income and $9.7 million of the $45.6 million total Other Operating Income. For the six months ended June 30, 2022, revenue from contracts with clients also includes $58.9 million of the $69.0 million total Security Commissions and Trading Income and $19.4 million of the $86.7 million total Other Operating Income.
Receivables Balances. The table below represents receivables balances from contracts with clients, which are included in Other Assets on the consolidated balance sheets, at June 30, 2023 and December 31, 2022.
TABLE 68: CLIENT RECEIVABLES
(In Millions)JUNE 30, 2023DECEMBER 31, 2022
Trust Fees Receivable, net(1)
$864.4 $882.5 
Other50.2 55.4 
Total Client Receivables$914.6 $937.9 
(1) Trust Fees Receivable is net of a $14.5 million and $13.5 million fee receivable allowance as of June 30, 2023 and December 31, 2022, respectively.
70

Notes to Consolidated Financial Statements (unaudited) (continued)
Note 14 – Net Interest Income
The components of net interest incomeNet Interest Income were as follows:follows.
Table 56: Net Interest IncomeTABLE 69: NET INTEREST INCOME
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions)2023202220232022
Interest Income
Federal Reserve and Other Central Bank Deposits$398.9 $59.2 $775.9 $76.8 
Interest-Bearing Due from and Deposits with Banks(1)
32.1 6.5 60.3 9.1 
Federal Funds Sold0.1 — 0.3 — 
Securities Purchased under Agreements to Resell284.3 7.0 410.2 7.9 
Securities — Taxable366.3 193.7 704.1 362.7 
— Nontaxable(2)
0.4 0.3 0.7 0.7 
Loans and Leases639.2 256.4 1,217.4 447.6 
Other Interest-Earning Assets(3)
13.7 1.7 21.5 3.5 
Total Interest Income$1,735.0 $524.8 $3,190.4 $908.3 
Interest Expense
Deposits$633.5 $23.2 $1,198.1 $7.3 
Federal Funds Purchased87.6 2.8 127.7 2.8 
Securities Sold Under Agreements to Repurchase273.4 6.0 389.5 6.3 
Other Borrowings156.5 8.4 291.5 11.5 
Senior Notes42.1 18.9 81.3 28.5 
Long-Term Debt30.4 6.8 59.6 12.2 
Total Interest Expense$1,223.5 $66.1 $2,147.7 $68.6 
Net Interest Income$511.5 $458.7 $1,042.7 $839.7 
 Three Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Interest Income       
Loans and Leases$239.4
 $202.1
 $677.2
 $604.3
Securities — Taxable143.4
 103.3
 421.5
 303.4
— Non-Taxable2.3
 2.2
 7.5
 5.0
Interest-Bearing Due from and Deposits with Banks (1)
16.0
 15.4
 45.0
 49.4
Federal Reserve and Other Central Bank Deposits52.7
 26.2
 130.1
 83.8
Total Interest Income453.8
 349.2
 1,281.3
 1,045.9
Interest Expense       
Deposits55.1
 20.0
 123.7
 63.4
Federal Funds Purchased4.3
 0.4
 5.7
 1.0
Securities Sold Under Agreements to Repurchase1.8
 0.5
 4.0
 1.5
Other Borrowings14.2
 5.7
 31.8
 12.4
Senior Notes11.5
 11.8
 35.0
 35.2
Long-Term Debt11.3
 6.8
 28.3
 19.3
Floating Rate Capital Debt1.4
 0.9
 3.6
 2.5
Total Interest Expense99.6
 46.1
 232.1
 135.3
Net Interest Income$354.2
 $303.1
 $1,049.2
 $910.6
(1)    Interest-Bearing Due from and Deposits with Banks includes the interest-bearing component of Cash and Due from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
(2) Non-taxable Securities represent securities that are exempt from U.S. federal income taxes.
(3) Other Interest-Earning Assets include certain community development investments, collateral deposits with certain securities depositories and clearing houses, Federal Home Loan Bank and Federal Reserve stock, and money market investments which are classified in Other Assets on the consolidated balance sheets.
(1)
Interest-Bearing Due from and Deposits with Banks includes the interest-bearing component of Cash and Due from Banks and Interest-Bearing Deposits with Banks as presented on the consolidated balance sheets.
Note 15 – Other Operating Income
The components of Other Operating Income Taxeswere as follows.
TABLE 70: OTHER OPERATING INCOME
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions)2023202220232022
Loan Service Fees$21.4 $18.1 $40.1 $34.8 
Banking Service Fees13.6 12.9 25.8 25.6 
Bank Owned Life Insurance17.0 14.9 33.7 26.7 
Other Income(1)
3.2 (0.3)2.4 (0.4)
Total Other Operating Income$55.2 $45.6 $102.0 $86.7 
(1)    Other Income tax expense forincludes the three and nine months ended September 30, 2017 was $118.2 million and $355.9 million, representing an effective tax rate of 28.4% and 29.7%, respectively. The provision for income taxes includes Federal and State research tax credits of $17.6 million recognized in the three months ended September 30, 2017 duemark-to-market gain or loss on derivative swap activity primarily related to the completionsale of a recent study of the Corporation’s technology spend between 2013 and 2016, partially offset by $4.3 million related to an increase in the Illinois state deferred income tax reserve resulting from an increase in the Illinois income tax rate.certain Visa Class B common shares.
Note 16 – Other Operating Expense
The prior-year three- and nine- month provision for income taxes was $116.1 million and $361.6 million, representing an effective tax ratecomponents of 31.1% and 32.1%, respectively.Other Operating Expense were as follows.

TABLE 71: OTHER OPERATING EXPENSE
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
($ In Millions)2023202220232022
Business Promotion$21.1 $18.1 $37.3 $28.9 
Staff Related8.9 6.2 16.7 9.1 
FDIC Insurance Premiums6.6 4.6 12.8 10.4 
Charitable Contributions4.3 4.6 7.5 7.1 
Other Expenses71.1 56.4 123.3 114.1 
Total Other Operating Expense$112.0 $89.9 $197.6 $169.6 
68
71

Notes to Consolidated Financial Statements (unaudited) (continued)

Note 1617 – Pension and Postretirement Health Care
The following tables settable sets forth the net periodic pension and postretirement benefit expense for Northern Trust’s U.S. Qualified Plan, Non-U.S. Pension Plans, and non-U.S. pension plans, supplemental pension plan, and postretirement health care planU.S. Non-Qualified Plan for the three and ninesix months ended SeptemberJune 30, 20172023 and 2016.2022.
Table 57: Net Periodic Pension Expense (Benefit)TABLE 72: NET PERIODIC PENSION EXPENSE (BENEFIT)
U.S. QUALIFIED PLANTHREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions)2023202220232022
Service Cost$11.5 $13.2 $23.0 $26.4 
Interest Cost13.5 10.3 27.0 20.6 
Expected Return on Plan Assets(25.3)(20.2)(50.6)(40.4)
Amortization
Net Actuarial Loss0.4 5.7 0.8 11.4 
Prior Service Cost (Credit) —  (0.1)
Net Periodic Pension Expense$0.1 $9.0 $0.2 $17.9 
Settlement Expense 20.3  20.3 
Total Pension Expense$0.1 $29.3 $0.2 $38.2 
Net Periodic Pension Expense
U.S. Plan
Three Months Ended September 30, Nine Months Ended September 30,
NON-U.S. PENSION PLANSNON-U.S. PENSION PLANSTHREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions)2017 2016 2017 2016(In Millions)2023202220232022
Service Cost$9.6
 $9.3
 $28.8
 $28.0
Service Cost$0.4 $0.5 $0.7 $0.9 
Interest Cost11.4
 11.5
 34.4
 34.4
Interest Cost1.2 0.6 2.4 1.3 
Expected Return on Plan Assets(23.4) (23.6) (70.4) (70.8)Expected Return on Plan Assets(1.6)(0.8)(3.1)(1.5)
Amortization       Amortization
Net Actuarial Loss4.7
 4.7
 14.3
 14.1
Prior Service Cost(0.1) (0.1) (0.3) (0.3)
Net Periodic Pension Expense$2.2
 $1.8
 $6.8
 $5.4
Net Actuarial Loss (Gain)Net Actuarial Loss (Gain)(0.1)0.2 (0.2)0.4 
Net Periodic Pension Expense (Benefit)Net Periodic Pension Expense (Benefit)$(0.1)$0.5 $(0.2)$1.1 
Settlement ExpenseSettlement Expense —  0.7 
Total Pension Expense (Benefit)Total Pension Expense (Benefit)$(0.1)$0.5 $(0.2)$1.8 
U.S. NON-QUALIFIED PLANTHREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions)2023202220232022
Service Cost$1.2 $1.4 $2.4 $2.8 
Interest Cost1.3 1.0 2.6 2.0 
Amortization
Net Actuarial Loss1.3 1.8 2.6 3.6 
Net Periodic Pension Expense$3.8 $4.2 $7.6 $8.4 
Net Periodic Pension Expense
Non-U.S. Plans
Three Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Interest Cost$1.0
 $1.2
 $2.9
 $3.7
Expected Return on Plan Assets(1.1) (1.2) (3.3) (3.7)
Settlement Expense0.7
 
 0.9
 
Net Actuarial Loss Amortization0.4
 0.3
 1.0
 0.8
Net Periodic Pension Expense$1.0
 $0.3
 $1.5
 $0.8

The components of net periodic pension expense are recorded in Employee Benefits expense on the consolidated statements of income.
Net Periodic Pension Expense
Supplemental Plan
Three Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Service Cost$1.0
 $0.9
 $2.8
 $2.6
Interest Cost1.3
 1.3
 3.9
 3.9
Amortization       
Net Actuarial Loss1.5
 1.5
 4.3
 4.4
Prior Service Cost0.1
 
 0.1
 0.1
Net Periodic Pension Expense$3.9
 $3.7
 $11.1
 $11.0
There were no contributions to the U.S. Qualified Plan during the six months ended June 30, 2023 and 2022, and $16.5 million and $20.7 million of contributions to the U.S. Non-Qualified Plan during the six months ended June 30, 2023 and 2022, respectively.
Net Periodic Postretirement Expense
Postretirement Health Care Plan
Three Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Service Cost$0.1
 $
 $0.1
 $0.1
Interest Cost0.3
 0.4
 1.1
 1.1
Amortization       
Net Actuarial (Gain)
 
 
 
Net Periodic Postretirement Expense$0.4
 $0.4
 $1.2
 $1.2

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Notes to Consolidated Financial Statements (unaudited) (continued)

Note 1718 – Share-Based Compensation Plans
The Northern Trust Corporation 2017 Long-Term Incentive Plan provides for the grant of nonqualifiednon-qualified and incentive stock options; tandem and free-standing stock appreciation rights; stock awards in the form of restricted stock, restricted stock units and other stock awards; and performance awards.
Beginning with the grants made on February 21, 2017 under the Corporation’s prior equity incentive plan, restrictedRestricted stock unit and performance stock unit grants continue to vest in accordance with the original terms of the award if the applicable employee retires after satisfying applicable age and service requirements. For all applicable periods, stock option grants continue
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Notes to vest in accordance with the original terms of the award if the applicable employee retires, after satisfying applicable age and service requirements.Consolidated Financial Statements (unaudited) (continued)
Total compensation expense for share-based payment arrangements and the associated tax impacts were as follows for the three and ninesix months ended SeptemberJune 30, 20172023 and 2016.2022.
Table 58: Total Compensation Expense for Share-Based Payment ArrangementsTABLE 73: TOTAL COMPENSATION EXPENSE FOR SHARE-BASED PAYMENT ARRANGEMENTS
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
(In Millions)2023202220232022
Restricted Stock Unit Awards$15.5 $16.9 $65.8 $69.5 
Performance Stock Units1.9 3.1 16.0 20.5 
Total Share-Based Compensation Expense17.4 20.0 81.8 90.0 
Tax Benefits Recognized$4.3 $5.0 $20.5 $22.6 
 Three Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Restricted Stock Unit Awards$15.8
 $15.0
 $72.6
 $45.0
Stock Options0.9
 0.9
 8.2
 8.1
Performance Stock Units4.9
 4.5
 25.4
 13.1
Total Share-Based Compensation Expense21.6
 20.4
 106.2
 66.2
Tax Benefits Recognized$8.5
 $7.7
 $40.4
 $25.0
Note 1819 – Variable Interest Entities
Variable Interest EntitiesNorthern Trust is involved with various entities in the normal course of business that are deemed to be variable interest entities (VIEs). VIEs are defined within GAAP as entities thatwhich either have a total(1) lack sufficient equity investment that is insufficientat risk to permit the entity to finance its activities without additional subordinated financial support, or whose(2) have equity investors that lack attributes typical of an equity investor, such as the characteristicsability to make significant decisions through voting rights affecting the entity’s operations, or the obligation to absorb expected losses or the right to receive residual returns of a controlling financial interest.the entity, or (3) are structured with voting rights that are disproportionate to the equity investor’s obligation to absorb losses or right to receive returns, and substantially all of the activities are conducted on behalf of the holder of the equity investment at risk with disproportionately few voting rights. Investors that finance a VIE through debt or equity interests or other counterparties that provide other forms of support, such as guarantees, subordinated fee arrangements, or certain types of derivative contracts, are variable interest holders in the entity. Theentity and the variable interest holder, if any, that has both the power to direct the activities that most significantly impact the entityentity’s economic performance and, athrough its variable interest, the obligation to absorb losses or the right to receive returns that could potentially be significant to the entity is deemed to be the VIE’s primary beneficiary and is required to consolidate the VIE.
Leveraged Leases. In leveraged leasing transactions,Tax credit structures. Northern Trust actsholds tax-advantaged investments in unconsolidated entities that own and operate affordable housing and other community development projects. These entities, which are limited partnerships and similar entities, are primarily VIEs and are designed to generate a return primarily through the realization of tax credits and other tax benefits, such as lessortax deductions from operating losses of the underlying asset subject to the lease and typically funds 20 - 30% of the asset’s cost via an equity ownership in a trust with the remaining 70 - 80% provided by third-party non-recourse debt holders. In such transactions, the trusts, which are VIEs, are created to provide the lessee use of the property with substantially all of the rights and obligations of ownership. The lessee’s maintenance and operation of the leased property has a direct effect on the fair value of the underlying property, and the lessee also has the ability to increase the benefits it can receive and limit the losses it can suffer by the manner in which it uses the property. As a result,investments. Northern Trust has determined that it is not the primary beneficiary of these VIEs given itinvests as a limited partner/investor member and lacks both the power to direct the entities’ most significant activities and the obligation to absorb losses or right to receive benefits that most significantly impactcould potentially be significant to the economic performance ofentities. Northern Trust is not required to consolidate these entities as it does not have a controlling financial interest and thus is not the VIEs.primary beneficiary.
Northern Trust’s maximum exposure to loss as a result of its involvement with the leveraged lease trust VIEsthese entities is limited to the carrying amounts of its leveraged lease investments. As of September 30, 2017 and December 31, 2016, the carrying amounts of these investments, which are included in loans and leases in the consolidated balance sheets, were $134.9 million and $183.5 million, respectively. Northern Trust’s funding requirements relative to the VIEs are limited to its invested capital. Northern Trust has no other liquidity arrangements or obligations to purchase assets of the VIEs that would expose Northern Trust to a loss.
Tax Credit Structures. Northern Trust invests in qualified affordable housing projects and community development entities (collectively, community development projects) that are designed to generate a return primarily through the realization of tax credits. The community development projects are formed as limited partnerships and limited liability companies (LLCs) in which Northern Trust invests as a limited partner/investor member through equity contributions. The economic performance of the community development projects, some of which are VIEs, is subject to the performance of their underlying investment and their ability to operate in compliance with the rules and regulations necessary for the qualification of tax credits generated by equity

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Notes to Consolidated Financial Statements (unaudited) (continued)

investments. Northern Trust has determined that it is not the primary beneficiary of any community development projects which are VIEs as it lacks the power to direct the activities that most significantly impact the economic performance of the underlying investments or to affect their ability to operate in compliance with the rules and regulations necessary for the qualification of tax credits generated by equity investments. This power is held by the general partners and managing members who exercise full and exclusive control of the operations of the VIEs.
Northern Trust’s maximum exposure to loss as a result of its involvement with community development projects is limited to the carrying amount of its investments, including any undrawn commitments. As of September 30, 2017 and December 31, 2016, the carrying amount of investments in community development projects that generate tax credits, included in other assets in the consolidated balance sheets, totaled $333.8 million and $218.9 million, respectively, of which $303.6 million and $186.5 million are VIEs as of September 30, 2017 and December 31, 2016. Liabilities related to undrawn commitments on investments in tax credit community development projects, included in other liabilities in the consolidated balance sheets, totaled $164.9 million and $82.9 million as of September 30, 2017 and December 31, 2016, respectively, of which $140.9 million and $56.7 million, related to undrawn commitments on VIEs as of September 30, 2017 and December 31, 2016, respectively. Northern Trust’s funding requirements are limited to its invested capital and undrawn commitments for future equity contributions. Northern Trust has no exposure to loss from liquidity arrangements and no obligation to purchase assets of these entities.
Northern Trust’s investments in these unconsolidated entities and related unfunded commitments are reported in Other Assets and Other Liabilities, respectively, on the community development projects.consolidated balance sheets.
TABLE 74: SUMMARY OF UNCONSOLIDATED TAX CREDIT STRUCTURES
(In Millions)JUNE 30, 2023DECEMBER 31, 2022
Investment Carrying Amount
Affordable Housing$656.3 $635.9 
     Other Community Development259.0 268.4 
Total Investment Carrying Amount(1)
$915.3 $904.3 
Unfunded Commitments
     Affordable Housing$219.1 $218.9 
     Other Community Development — 
Total Unfunded Commitments(2)
$219.1 $218.9 
(1)    As of June 30, 2023 and December 31, 2022, $880.8 million and $867.2 million are VIEs, respectively.
(2) As of June 30, 2023 and December 31, 2022, $212.1 million and $210.1 million relate to undrawn commitments on VIEs, respectively.

Tax credits and other tax benefits attributable to community development projectsunconsolidated tax credit structures totaled $12.5$28.3 million and $25.7 million for both the three months ended SeptemberJune 30, 20172023 and 2016,2022, respectively, and $38.3$56.6 million and $36.5$48.4 million for the ninesix months ended SeptemberJune 30, 20172023, and 2016,2022, respectively.
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Notes to Consolidated Financial Statements (unaudited) (continued)
Investment Funds.funds. Northern Trust acts as asset manager for various funds in which clients of Northern Trust are investors. As an asset manager of funds, Northern Trust earns a competitively priced fee that is based on assets managed and varies with each fund’s investment objective. Based on its analysis, Northern Trust has determined that it is not the primary beneficiary of these VIEs under GAAP.

Some of the funds for which Northern Trust acts as asset manager comply or operate in accordance with requirements that are similar to those in Rule 2a-7 of the Investment Company Act of 1940 for registered money market funds and therefore the funds are exempt from the consolidation requirements in Accounting Standards CodificationASC 810-10. Northern Trust voluntarily waived $0.3$2.3 million and $0.2$8.6 million of money market mutual fund fees for the three months ended SeptemberJune 30, 20172023 and 2016,2022, respectively, related to certain competitive factors, and $0.7$4.3 million and $8.1$59.3 million of money market mutual fund fees for the ninesix months ended SeptemberJune 30, 20172023, and 2016, respectively.2022, respectively, related to the low-interest rate environment and certain competitive factors. Northern Trust does not have any explicit arrangementscontractual obligations to provide financial support to the funds. Any potential future support of the funds will be at the discretion of Northern Trust after an evaluation of the specific facts and circumstances.
Periodically, Northern Trust makes seed capital investments to certain funds. As of June 30, 2023, Northern Trust had no seed capital investments and no unfunded commitments related to seed capital investments. As of December 31, 2022, Northern Trust had $19.9 million of investments valued using net asset value per share and included in Other Assets and had no unfunded commitments related to seed capital investments.
Note 1920 Commitments and Contingent Liabilities
Commitments, Letters of CreditOff-Balance Sheet Financial Instruments, Guarantees and Indemnifications. Other Commitments. Northern Trust, in the normal course of business, enters into various types of commitments and issues letters of credit to meet the liquidity and credit enhancement needs of its clients. The contractual amounts of these instruments represent the maximum potential credit exposure should the instrument be fully drawn upon and the client default. To control the credit risk associated with entering into commitments and issuing letters of credit, Northern Trust subjects such activities to the same credit quality and monitoring controls as its lending activities. Northern Trust does not believe the total contractual amount of these instruments to be representative of its future credit exposure or funding requirements.
Legally bindingThe following table provides details of Northern Trust's off-balance sheet financial instruments as of June 30, 2023 and December 31, 2022.
TABLE 75: SUMMARY OF OFF-BALANCE SHEET FINANCIAL INSTRUMENTS
JUNE 30, 2023DECEMBER 31, 2022
($ In Millions)ONE YEAR AND LESSOVER ONE YEARTOTALONE YEAR AND LESSOVER ONE YEARTOTAL
Undrawn Commitments(1)
$12,169.1 $18,047.1 $30,216.2 $13,639.2 $17,321.4 $30,960.6 
Standby Letters of Credit and Financial Guarantees(2)(3)
48,306.3 378.1 48,684.4 17,553.0 409.9 17,962.9 
Commercial Letters of Credit34.9 1.2 36.1 25.4 1.3 26.7 
Securities Lent with Indemnification143,809.6  143,809.6 130,311.0 — 130,311.0 
Unsettled Reverse Repurchase Agreements4,872.8  4,872.8 496.8 — 496.8 
Total Off-Balance Sheet Financial Instruments$209,192.7 $18,426.4 $227,619.1 $162,025.4 $17,732.6 $179,758.0 
(1) These amounts exclude $215.8 million and $266.6 million of commitments participated to extendothers at June 30, 2023 and December 31, 2022, respectively.
(2) These amounts include $30.8 million and $35.1 million of standby letters of credit secured by cash deposits or participated to others as of June 30, 2023 and December 31, 2022, respectively.
(3) These amounts include a $47.0 billion and $16.3 billion guarantee to the Fixed Income Clearing Corporation (FICC) under the sponsored member program, without taking into consideration the related collateral, as of June 30, 2023 and December 31, 2022, respectively. Northern Trust became a sponsored member during the third quarter of 2021.
Undrawn Commitments generally have fixed expiration dates or other termination clauses. Since a significant portion of the commitments are expected to expire without being drawn upon, the total commitment amount does not necessarily represent future loans or liquidity requirements. Legally binding commitments to extend credit totaled $27.8 billion and $32.8 billion as
Standby Letters of September 30, 2017 and December 31, 2016, respectively.
Standby letters of creditCredit obligate Northern Trust to meet certain financial obligations of its clients, if, under the contractual terms of the agreement, the clients are unable to do so. These instruments are primarily issued to support public and private financial commitments, including commercial paper, bond financing, initial margin requirements on futures exchanges and similar transactions. Northern Trust is obligated to meet the entire financial obligation of these agreements and in certain cases is able to recover the amounts paid through recourse against collateral received or other participants. Standby
Financial Guarantees are issued by Northern Trust to guarantee the performance of a client to a third party under certain arrangements.
Commercial Letters of Credit are instruments issued by Northern Trust on behalf of its clients that authorize a third party (the beneficiary) to draw drafts up to a stipulated amount under the specified terms and conditions of the agreement and other similar instruments. Commercial letters of credit outstanding were $3.3 billion and $3.8 billion as of September 30, 2017 and December 31, 2016, respectively.are issued primarily to facilitate international trade.
As part of its securities custody activities and at the direction of its clients,
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Notes to Consolidated Financial Statements (unaudited) (continued)
Securities Lent with Indemnification involves Northern Trust lendslending securities owned by clients to borrowers who are reviewed and approved by the Northern Trust Counterparty Risk Management Committee.Capital Markets Credit Committee, as part of its securities custody activities and at the direction of its clients. In connection with these activities, Northern Trust has issued indemnifications to certain clients against certain losses that are a direct result of a borrower’s failure to return securities when due, should the value of such securities exceed the value of the collateral required to be posted. Borrowers are required to collateralize fully securities received with cash or marketable securities. As securities are loaned, collateral is maintained at a minimum of 100% of the fair value of the securities plus accrued interest. The collateral is

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Notes to Consolidated Financial Statements (unaudited) (continued)

revalued on a daily basis. The amount of securities loaned as of SeptemberJune 30, 20172023 and December 31, 20162022 subject to indemnification was $139.3$143.8 billion and $102.3$130.3 billion, respectively. Because of the credit quality of the borrowers and the requirement to fully collateralize fully securities borrowed, management believes that the exposure to credit loss from this activity is not significant and no liability was recorded as of SeptemberJune 30, 20172023 or December 31, 2016,2022, related to these indemnifications.
Unsettled Repurchase and Reverse Repurchase Agreements.Northern Trust enters into repurchase agreements and reverse repurchase agreements which may settle at a future date. In repurchase agreements, Northern Trust receives cash from and provides securities as collateral to a counterparty. In reverse repurchase agreements, Northern Trust advances cash to and receives securities as collateral from a counterparty. These transactions are recorded on the consolidated balance sheets on the settlement date. As of June 30, 2023 and December 31, 2022, there were $4.9 billion and $496.8 million unsettled reverse repurchase agreements, respectively, and no unsettled repurchase agreements.
Sponsored Member Program.Northern Trust is an approved Government Securities Division (GSD) netting and sponsoring member in the FICC sponsored member program, through which Northern Trust submits eligible repurchase and reverse repurchase transactions in U.S. government securities between Northern Trust and its sponsored member clients for novation and clearing. Northern Trust may sponsor clients to clear their eligible repurchase transactions with the FICC. As a sponsoring member, Northern Trust guarantees to the FICC the prompt and full payment and performance of its sponsored member clients’ respective obligations under the FICC GSD’s rules. To mitigate Northern Trust’s credit exposure under this guarantee, Northern Trust obtains a security interest in its sponsored member clients’ collateral. See Note 23—Offsetting of Assets and Liabilities for additional information on Northern Trust’s repurchase and reverse repurchase agreements.
Clearing and Settlement Organizations.The Bank is a participating member of various cash, securities and foreign exchange clearing and settlement organizations. It participates in these organizations on behalf of its clients and on its own behalf as a result of its own activities. A wide variety of cash and securities transactions are settled through these organizations, including those involving U.S. Treasuries, obligations of states and political subdivisions, asset-backed securities, commercial paper, dollar placements, and securities issued by the Government National Mortgage Association.
Certain of these industry clearing and settlement exchanges require their members to guarantee their obligations and liabilities and/or to provide liquidity support in the event other members do not honor their obligations as stipulated in each clearing organization’s membership agreement. Exposure related to these agreements varies, primarily as a result of fluctuations in the volume of transactions cleared through the organizations. At June 30, 2023 and December 31, 2022, Northern Trust has not recorded any material liabilities under these arrangements as Northern Trust believes the likelihood that a clearing or settlement exchange (of which Northern Trust is a member) would become insolvent is remote. Controls related to these clearing transactions are closely monitored by management to protect the assets of Northern Trust and its clients.
Legal Proceedings. In the normal course of business, the Corporation and its subsidiaries are involved routinely defendants in a number ofor parties to pending and threatened legal actions, and are subject to regulatory examinations, information-gathering requests, investigations, and proceedings, both formal and informal regulatory matters, employment matters and challenges from tax authorities regarding the amount of taxes due.informal. In certain of theselegal actions, and proceedings, claims for substantial monetary damages or adjustments to recorded tax liabilities are asserted. In regulatory matters, claims for disgorgement, restitution, penalties and/or other remedial actions or sanctions may be sought.
Based on current knowledge, after consultation with legal counsel and after taking into account current accruals, management does not believe that losses, fines or penalties, if any, arising from pending litigation or threatened legal actions or regulatory matters either individually or in the aggregate, after giving effect to applicable reserves and insurance coverage will have a material adverse effect on the consolidated financial position or liquidity of the Corporation, although such matters could have a material adverse effect on the Corporation’s operating results for a particular period.

Under GAAP, (i) an event is “probable” if the “future event or events are likely to occur”; (ii) an event is “reasonably possible” if “the chance of the future event or events occurring is more than remote but less than likely”; and (iii) an event is “remote” if “the chance of the future event or events occurring is slight.”
For the reasons set out in this paragraph, theThe outcome of somelitigation and regulatory matters is inherently difficult to predict and/or the range of loss often cannot be reasonably estimated. This may be the case inestimated, particularly for matters that (i) will be decided by a jury, (ii) are in early stages, (iii) involve uncertainty as to the likelihood of a class being certified or the ultimate size of the class, (iv) are subject to appeals or motions, (v) involve significant factual issues to be resolved, including with respect to the amount of damages, (vi) do not specify the amount of damages sought or (vii) seek very large damages based on novel and complex damage and liability legal theories. Accordingly,
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Notes to Consolidated Financial Statements (unaudited) (continued)
the Corporation cannot reasonably estimate the eventual outcome of these pending matters, the timing of their ultimate resolution or what the eventual loss, fines or penalties, if any, related to each pending matter will be.
In accordance with applicable accounting guidance, the Corporation records accruals for litigation and regulatory matters when those matters present loss contingencies that are both probable and reasonably estimable. When loss contingencies are not both probable and reasonably estimable, the Corporation does not record accruals. No material accruals have been recorded for pending litigation or threatened legal actions or regulatory matters.
For a limited number of matters for which a loss is reasonably possible in future periods, whether in excess of an accrued liability or where there is no accrued liability, the Corporation is able to estimate a range of possible loss. As of SeptemberJune 30, 2017,2023, the Corporation has estimated the range of reasonably possible loss for these matters to be from zero to approximately $30$25 million in the aggregate. The Corporation’s estimate with respect to the aggregate range of reasonably possible loss is based upon currently available information and is subject to significant judgment and a variety of assumptions and known and unknown uncertainties. The matters underlying the estimated range will change from time to time, and actual results may vary significantly from the current estimate.
In certain other pending matters, there may be a range of reasonably possible loss (including reasonably possible loss in excess of amounts accrued) that cannot be reasonably estimated for the reasons described above. Such matters are not included in the estimateestimated range of reasonably possible loss discussed above.
In January 2015, the Public Prosecutor’s Office of France recommended that certain charges be brought against Northern Trust Fiduciary Services (Guernsey) Limited (NTFS), an indirect subsidiary of the Corporation, relating towas charged by a French investigating magistrate judge with complicity in estate tax fraud in connection with the administration of two trusts for which NTFSit serves as trustee. In April 2015, a French investigating magistrate judge charged NTFS with complicity in estate tax fraud. Charges also were brought against a number of other persons and entities related to this matter. The trial related to this matter concluded in October 2016. In January 2017, thea French court found no estate tax fraud had occurred and NTFS and all other persons and entities charged were acquitted. The Public Prosecutor’s Office of France has appealed the court decision.decision and in June 2018 a French appellate court issued its opinion on the matter, acquitting all persons and entities charged, including NTFS. In January 2021, the Cour de Cassation, the highest court in France, reversed the June 2018 appellate court ruling, requiring a re-trial at the appellate court level. The re-trial proceedings in the appellate court are scheduled to begincommence in March 2018.September 2023. As trustee, NTFS provided no tax advice and had no involvement in the preparation or filing of the challenged estate tax filings.
Visa Class B Common Shares. Northern Trust, as a member of Visa U.S.A. Inc. (Visa U.S.A.) and in connection with the 2007 restructuring of Visa U.S.A. and its affiliates and the 2008 initial public offering of Visa Inc. (Visa), received certain Visa Class B common shares. The Visa Class B common shares are subject to certain selling restrictions until the final resolution of thecertain litigation related to interchange fees involving Visa (the covered litigation noted below,litigation), at which time the shares are convertible into Visa Class A common shares based on a conversion rate dependent upon the ultimate cost of resolving the covered litigation.

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Notes Since 2018, Visa has deposited an additional $2.6 billion into an escrow account previously established with respect to Consolidated Financial Statements (unaudited) (continued)

Certain members of Visa U.S.A. are obligated to indemnify Visa for losses resulting from certain litigation relating to interchange fees (the covered litigation). On October 19, 2012, Visa signed a settlement agreement with plaintiff representatives for binding settlement of the covered litigation. On January 14, 2014,As a result of the United States District Courtadditional contributions to the escrow account, the rate at which Visa Class B common shares will convert into Visa Class A common shares was reduced.
In September 2018, Visa reached a proposed class settlement agreement covering damage claims but not injunctive relief claims regarding the covered litigation. In December 2019, the district court granted final approval for the Eastern District of New York entered a final judgment order approvingproposed class settlement agreement. In March 2023, the settlement with the class plaintiffs. A number of objectors appealed from that order and more than 30 opt-out cases have been filed by merchants in various federal district courts. On June 30, 2016, the United StatesSecond Circuit Court of Appeals foraffirmed the Second Circuit reversed the District Court'sdistrict court’s approval of the class settlement agreement. Certain merchants have opted out of the class settlement and remandedare pursuing claims separately, while other merchants have appealed the case toapproval order granted by the District Court for further proceedings. In November 2016, a subset of plaintiffs filed a certiorari petition with the Supreme Court of the United States. In March 2017, the Supreme Court denied that petition.district court. The ultimate resolution of the covered litigation, and the timing for removal of the selling restrictions on the Visa Class B common shares and the rate at which such shares will ultimately convert into Visa Class A common shares are uncertain.
In June 2016 and 2015, Northern Trust recorded a $123.1$123.1 million and $99.9$99.9 million net gain on the sale of 1.1 million and 1.0 million of its Visa Class B common shares, respectively. These sales do not affect Northern Trust’s risk related to the impact of the covered litigation on the rate at which such shares will ultimately convert into Visa Class A common shares. Northern Trust continued to hold approximately 4.1 million Visa Class B common shares, which are recorded at their original cost basis of zero, as of both SeptemberJune 30, 20172023 and 2016.December 31, 2022.
Note 2021 – Derivative Financial Instruments
Northern Trust is a party to various derivative financial instruments that are used in the normal course of business to meet the needs of its clients, as part of its trading activity for its own account and as part of its risk management activities. These instruments may include foreign exchange contracts, interest rate contracts, total return swap contracts, credit default swap contracts, and swaps related to the sale of certain Visa Class B common shares.
Northern Trust’s primary risks associated with these instruments are the possibility that interest rates, foreign exchange rates, equity prices, or credit spreads could change in an unanticipated manner, resulting in higher costs or a loss in the underlying value of the instrument. These risks are mitigated by establishing limits, monitoring the level of actual positions taken against such established limits and monitoring the level of any interest rate sensitivity gaps created by such positions. When establishing position limits, market liquidity and volatility, as well as experience in each market, are taken into account.
Credit risk associated with derivative instruments relates to the failure of the counterparty and the failure of Northern Trust to pay based on the contractual terms of the agreement, and is generally limited to the unrealized fair value gains and losses on these instruments, net of any collateral received or deposited. The amount of credit risk will increase or decrease during the lives of the instruments as interest rates, foreign exchange rates, equity prices or other underlying exposures fluctuate. Northern Trust’s risk is controlled by limiting such activity to an approved list of counterparties and by subjecting such activity to the same credit and quality controls as are followed in lending and investment activities. Credit Support Annexes and other similar agreements are currently in place with a number of Northern Trust’s counterparties which mitigate the aforementioned credit risk associated with derivative activity conducted with those counterparties by requiring that significant net unrealized fair value gains be supported by collateral placed with Northern Trust.
All derivative financial instruments, whether designated as hedges or not, are recorded in the consolidated balance sheets at fair value within other assets or other liabilities. As noted in the discussions below, the manner in which changes in the fair value of a derivative is accounted for in the consolidated statements of income depends on whether the contract has been designated as a hedge and qualifies for hedge accounting under GAAP. Northern Trust has elected to net derivative assets and liabilities when legally enforceable master netting arrangements or similar agreements exist between Northern Trust and the counterparty. Derivative assets and liabilities recorded in the consolidated balance sheets were each reduced by $1.8 billion and $1.7 billion as of September 30, 2017 and December 31, 2016, respectively, as a result of master netting arrangements and similar agreements in place. Derivative assets and liabilities recorded at September 30, 2017, also reflect reductions of $617.9 million and $334.3 million, respectively, as a result of cash collateral received from and deposited with derivative counterparties, respectively. This compares with reductions of derivative assets and liabilities of $461.3 million and $722.1 million, respectively, at December 31, 2016. Additional cash collateral received from and deposited with derivative counterparties totaling $235.5 million and $405.0 million, respectively, as of September 30, 2017, and $70.8 million and $324.5 million, respectively, as of December 31, 2016, was not offset against derivative assets and liabilities in the consolidated balance sheets as the amounts exceeded the net derivative positions with those counterparties. Northern Trust centrally clears eligible interest rate derivative instruments as required under Title VII of the Dodd-Frank Wall Street Reform and Consumer Protection Act.
The following table presents the fair value of securities that have been either pledged to or accepted from counterparties for these derivative transactions.

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Notes to Consolidated Financial Statements (unaudited) (continued)

Table 59: Fair Value of Securities Collateral for Derivative Transactions
(in Millions)September 30, 2017December 31, 2016
Pledged to others:  
Not permitted by contract or custom to sell or repledge$43.0
$70.8
Permitted by contract or custom to sell or repledge

Accepted from others:  
Not permitted by contract or custom to sell or repledge

Permitted by contract or custom to sell or repledge4.5
Securities pledged or accepted as collateral are not offset against derivative assets and liabilities in the consolidated balance sheets. There was no repledged or sold collateral at September 30, 2017 or December 31, 2016.
Certain master netting arrangements Northern Trust enters into with derivative counterparties contain credit-risk-related contingent features in which the counterparty has the option to declare Northern Trust in default and accelerate cash settlement of net derivative liabilities with the counterparty in the event Northern Trust’s credit rating falls below specified levels. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position was $240.4 million and $358.2 million at September 30, 2017 and December 31, 2016, respectively. Cash collateral amounts deposited with derivative counterparties on those dates included $190.1 million and $317.5 million, respectively, posted against these liabilities, resulting in a net maximum amount of termination payments that could have been required at September 30, 2017 and December 31, 2016, of $50.3 million and $40.7 million, respectively. Accelerated settlement of these liabilities would not have a material effect on the consolidated financial position or liquidity of Northern Trust.
Foreign exchange contracts are agreements to exchange specific amounts of currencies at a future date, at a specified rate of exchange. Foreign exchange contracts are entered into primarily to meet the foreign exchange needs of clients. Foreign exchange contracts are also used for trading purposes and risk management.management purposes. For risk management purposes, Northern Trust
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Notes to Consolidated Financial Statements (unaudited) (continued)
uses foreign exchange contracts to reduce its exposure to changes in foreign exchange rates relating to certain forecasted non-functional-currency-denominated revenue and expenditure transactions, foreign-currency-denominated assets and liabilities, including investmentdebt securities, and net investments in non-U.S. affiliates.
Interest rate contracts include swap and option contracts. Interest rate swap contracts involve the exchange of fixed and floating rate interest payment obligations without the exchange of the underlying principal amounts. Northern Trust enters into interest rate swap contracts with its clients and also may utilize such contracts to reduce or eliminate the exposure to changes in the cash flows or fair value of hedged assets or liabilities due to changes in interest rates. Interest rate option contracts may include caps, floors, collars and swaptions, and provide for the transfer or reduction of interest rate risk, typically in exchange for a fee. Northern Trust enters into option contracts primarily as a seller of interest rate protection to clients. Northern Trust receives a fee at the outset of the agreement for the assumption of the risk of an unfavorable change in interest rates. This assumed interest rate risk is then mitigated by entering into an offsetting position with an outside counterparty. Northern Trust may also purchase or enter into option contracts for risk management purposes including to reduce the exposure to changes in the cash flows of hedged assets due to changes in interest rates.
Client-Related and Trading Derivative Instruments. Approximately 96% of Northern Trust’s derivatives outstanding at September 30, 2017 and December 31, 2016, measured on a notional value basis, relate to client-related and trading activities. These activities consist principally of providing foreign exchange services to clients in connection with Northern Trust’s global custody business. However, in the normal course of business, Northern Trust also engages in trading of currencies for its own account.

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Notes to Consolidated Financial Statements (unaudited) (continued)

The following table shows the notional and fair values of client-related and tradingall derivative financial instruments. instruments as of June 30, 2023 and December 31, 2022.

TABLE 76: NOTIONAL AND FAIR VALUES OF DERIVATIVE FINANCIAL INSTRUMENTS
JUNE 30, 2023DECEMBER 31, 2022
NOTIONAL VALUEFAIR VALUENOTIONAL VALUEFAIR VALUE
(In Millions)
ASSET(1)
LIABILITY(2)
ASSET(1)
LIABILITY(2)
Derivatives Designated as Hedging under GAAP
Interest Rate Contracts
Fair Value Hedges$4,323.1 $57.0 $26.5 $4,622.0 $58.5 $32.7 
Foreign Exchange Contracts
Cash Flow Hedges750.0 19.2 0.9 150.9 7.4 5.7 
Net Investment Hedges3,860.4 19.3 23.6 3,765.0 283.5 12.7 
Total Derivatives Designated as Hedging under GAAP$8,933.5 $95.5 $51.0 $8,537.9 $349.4 $51.1 
Derivatives Not Designated as Hedging under GAAP
Non-Designated Risk Management Derivatives
Foreign Exchange Contracts$95.8 $0.2 $0.3 $55.9 $0.1 $0.1 
Other Financial Derivatives(3)
793.0  36.4 717.7 0.3 34.8 
Total Non-Designated Risk Management Derivatives$888.8 $0.2 $36.7 $773.6 $0.4 $34.9 
Client-Related and Trading Derivatives
Foreign Exchange Contracts$299,322.9 $2,225.4 $2,137.8 $288,994.6 $3,219.1 $3,169.0 
Interest Rate Contracts14,764.9 256.9 381.6 12,378.2 163.5 399.1 
Total Client-Related and Trading Derivatives$314,087.8 $2,482.3 $2,519.4 $301,372.8 $3,382.6 $3,568.1 
Total Derivatives Not Designated as Hedging under GAAP$314,976.6 $2,482.5 $2,556.1 $302,146.4 $3,383.0 $3,603.0 
Total Gross Derivatives$323,910.1 $2,578.0 $2,607.1 $310,684.3 $3,732.4 $3,654.1 
Less: Netting(4)
1,245.9 1,461.0 2,810.7 1,865.9 
Total Derivative Financial Instruments$1,332.1 $1,146.1 $921.7 $1,788.2 
(1)    Derivative assets are reported in Other Assets on the consolidated balance sheets.
(2)    Derivative liabilities are reported in Other Liabilities on the consolidated balance sheets.
(3)    This line includes swaps related to sales of certain Visa Class B common shares and total return swap contracts.
(4)    See further detail in Note 23—Offsetting of Assets and Liabilities.
Notional amounts of derivative financial instruments do not represent credit risk and are not recorded in the consolidated balance sheets. They are used merely to express the volume of this activity. Northern Trust’s credit-related risk of loss is limited to the positive fair value of the derivative instrument, net of any collateral received, which is significantly less than the notional amount.
Table 60: Notional and Fair Values of Client-Related and Trading Derivative Financial Instruments
 September 30, 2017 December 31, 2016
 
Notional
Value
 Fair Value 
Notional
Value
 Fair Value
(In Millions)Asset Liability Asset Liability
Foreign Exchange Contracts$323,057.7
 $3,047.4
 $3,002.2
 $273,213.1
 $3,274.2
 $3,221.7
Interest Rate Contracts7,384.0
 81.5
 67.3
 6,968.3
 87.0
 85.2
Total$330,441.7
 $3,128.9
 $3,069.5
 $280,181.4
 $3,361.2
 $3,306.9
Changes inAll derivative financial instruments, whether designated as hedges or not, are recorded on the consolidated balance sheets at fair value of client-relatedwithin Other Assets or Other Liabilities. Northern Trust has elected to net derivative assets and trading derivative instruments are recognized currently in income. The following table showsliabilities when legally enforceable master netting arrangements or similar agreements exist between Northern Trust and the location and amount of gains and losses recorded in the consolidated statements of income for the three and nine months ended September 30, 2017 and 2016.counterparty.
Table 61: Location and Amount of Client-Related and TradingHedging Derivative Gains and Losses Recorded in Income
  
Amount of Derivative
Gain Recognized in Income
 Location of Derivative Gain Recognized in IncomeThree Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Foreign Exchange Contracts
Foreign Exchange
Trading Income
$49.1
 $53.6
 $147.1
 $178.5
Interest Rate Contracts
Security Commissions
and Trading Income
2.7
 2.6
 8.3
 9.7
Total $51.8
 $56.2
 $155.4
 $188.2
Risk Management Instruments.Instruments Designated under GAAP. Northern Trust uses derivative instruments to hedge its exposure to foreign currency, interest rate, and equity price, and credit risk.price. Certain hedging relationships are formally designated and qualify for hedge accounting under GAAP as fair value, cash flow or net investment hedges. Other derivatives that are entered into for risk management purposes as economic hedges are not formally designated as hedges and changes in fair value are recognized
77

Notes to Consolidated Financial Statements (unaudited) (continued)
currently in other operating income.Other Operating Income within the consolidated statements of income (see below section “Derivative Instruments Not Designated as Hedging under GAAP”).
In order to qualify for hedge accounting, a formal assessment is performed on a calendar-quarter basis to verify that derivatives used in designated hedging transactions continue to be highly effective in offsetting the changes in fair value or cash flows of the hedged item. If a derivative ceases to be highly effective, matures, is sold or is terminated, or if a hedged forecasted transaction is no longer probable of occurring, hedge accounting is terminated and the derivative is treated as if it were a trading instrument.

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Notes to Consolidated Financial Statements (unaudited) (continued)

The following table identifies the types and classifications of derivative instruments formally designated as hedges under GAAP and used by Northern Trust to manage risk, their notional and fair values, and the respective risks addressed.
Table 62: Notional and Fair Value of Designated Risk Management Derivative Financial Instruments
     September 30, 2017 December 31, 2016
 
Derivative
Instrument
 
Risk
Classification
 
Notional
Value
 Fair Value 
Notional
Value
 Fair Value
(In Millions)Asset Liability Asset Liability
Fair Value Hedges               
Available for Sale Investment SecuritiesInterest Rate Swap Contracts 
Interest
Rate
 $3,430.1
 $17.4
 $11.0
 $3,873.4
 $88.3
 $16.8
Senior Notes and Long-Term Subordinated DebtInterest Rate Swap Contracts 
Interest
Rate
 1,250.0
 18.0
 4.1
 1,250.0
 71.8
 3.3
Cash Flow Hedges               
Forecasted Foreign Currency Denominated TransactionsForeign Exchange Contracts 
Foreign
Currency
 431.2
 11.7
 8.5
 329.3
 8.5
 7.8
Foreign Currency Denominated Investment SecuritiesForeign Exchange Contracts Foreign Currency 1,439.8
 27.4
 
 1,431.6
 151.5
 0.8
Available for Sale Investment SecuritiesInterest Rate Contracts 
Interest
Rate
 1,025.0
 0.2
 1.7
 975.0
 0.1
 2.7
Net Investment Hedges               
Net Investments in Non-U.S. AffiliatesForeign Exchange Contracts 
Foreign
Currency
 2,855.4
 5.0
 154.9
 2,083.6
 174.6
 10.8
Total    $10,431.5
 $79.7
 $180.2
 $9,942.9
 $494.8
 $42.2
Hedges.Derivatives are designated as fair value hedges to limit Northern Trust’s exposure to changes in the fair value of assets and liabilities due to movements in interest rates. For aNorthern Trust enters into interest rate swaps to hedge changes in fair value of AFS debt securities and long-term subordinated debt and senior notes. Northern Trust applied the “shortcut” method of accounting, available under GAAP, which assumes there is perfect effectiveness in a hedge, changesfor all of its fair value hedges during the three- and six-month periods ended June 30, 2023 and 2022. Changes in the fair value of the derivative instrument and changes in the fair value of the hedged asset or liability attributable to the hedged risk are recordedrecognized currently in income. The following table showsearnings within the location and amount of derivative gains and losses recognized in the consolidated statements ofsame income related to fair value hedges for the three and nine months ended September 30, 2017 and 2016.statement line item.
Table 63: Location and Amount of Fair Value Hedge Derivative Gains and Losses Recorded in Income
   
Location of
Derivative
Gain/(Loss)
Recognized in
Income
 
Amount of Derivative
Gain/(Loss)
Recognized in Income
 
Derivative
Instrument
 Three Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Available for Sale Investment Securities
Interest Rate
Swap Contracts
 
Interest
Income
 $1.1
 $15.5
 $(24.5) $(44.3)
Senior Notes and Long-Term Subordinated Debt
Interest Rate
Swap Contracts
 
Interest
Expense
 1.2
 (7.3) 14.3
 63.7
Total    $2.3
 $8.2
 $(10.2) $19.4
Northern Trust applies the “shortcut” method of accounting, available under GAAP, to substantially all of its fair value hedges, which assumes there is no ineffectiveness in a hedge. For fair value hedges that do not qualify for the “shortcut” method of accounting, Northern Trust utilizes regression analysis, the “long-haul” method of accounting, in assessing whether the hedging relationships are highly effective at inception and quarterly thereafter. There was no ineffectiveness or changes in the fair value of hedged items recognized in income for fair value hedges accounted for under the “long-haul” method of accounting during the three- and nine- month periods ended September 30, 2017 and 2016.

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Notes to Consolidated Financial Statements (unaudited) (continued)

Cash Flow Hedges.Derivatives are also designateddesignated as cash flow hedges in order to minimize the variability in cash flows of earning assets or forecasted transactions caused by movements in interest or foreign exchange rates. Northern Trust enters into foreign exchange contracts to hedge changes in cash flows due to movements in foreign exchange rates of forecasted foreign- currency-denominated transactions and foreign-currency-denominated debt securities. Northern Trust also enters into interest rate contracts to hedge changes in cash flows due to movements in interest rates of AFS debt securities. The change in fair value of cash flow hedging derivative instruments are recorded in AOCI and reclassified to earnings when the hedged forecasted transaction impacts earnings within the same income statement line item.
There waswere no ineffectiveness recognized in income formaterial gains or losses reclassified into earnings during the three- and six-month periods ended June 30, 2023 and 2022, as a result of the discontinuance of forecasted transactions that were no longer probable of occurring. It is estimated that net gains of $0.3 million and $17.9 million will be reclassified into Net Income within the next twelve months relating to cash flow hedges during the threeof foreign-currency-denominated transactions and nine months ended September 30, 2017 and 2016.cash flow hedges of foreign-currency-denominated debt securities, respectively. As of SeptemberJune 30, 2017, 232023, three months was the maximum length of time over which the exposure to variability in future cash flows of forecasted foreign-currency-denominated transactions was being hedged.
The following table providestables provide fair value and cash flow hedge derivative gains and losses recognized in AOCI and the amounts reclassified to income during the threethree- and nine monthssix-month periods ended SeptemberJune 30, 20172023 and 2016.2022.
Table 64: Cash Flow Hedge Derivative Gains and Losses Recognized in AOCI and Reclassified to IncomeTABLE 77: LOCATION AND AMOUNT OF FAIR VALUE AND CASH FLOW HEDGE DERIVATIVE GAINS AND LOSSES RECORDED IN INCOME
(In Millions)INTEREST INCOMEINTEREST EXPENSEOTHER OPERATING INCOME
THREE MONTHS ENDED JUNE 30,202320222023202220232022
Total amounts on the consolidated statements of income$1,735.0 $524.8 $1,223.5 $66.1 $55.2 $45.6 
Gains (Losses) on fair value hedges recognized on
Interest Rate Contracts
Recognized on derivatives5.0 18.5 (49.8)(97.8) — 
Recognized on hedged items(5.0)(18.5)49.8 97.8  — 
Amounts related to interest settlements on derivatives11.3 (0.4)(22.6)23.7  — 
Total gains (losses) recognized on fair value hedges$11.3 $(0.4)$(22.6)$23.7 $ $— 
Gains (Losses) on cash flow hedges recognized on
Foreign Exchange Contracts
Net gains (losses) reclassified from AOCI to net income$1.2 $— $ $— $1.0 $(1.5)
Total gains (losses) reclassified from AOCI to net income on cash flow hedges$1.2 $— $ $— $1.0 $(1.5)
78

Notes to Consolidated Financial Statements (unaudited) (continued)
(In Millions)
Foreign Exchange
Contracts (Before Tax)
 
Interest Rate 
Contracts (Before Tax)
Three Months Ended September 30,2017 2016 2017 2016
Net Gain/(Loss) Recognized in AOCI$3.1
 $(0.5) $(0.2) $(5.9)
Net Gain/(Loss) Reclassified from AOCI to Net Income       
Other Operating Income1.7
 (6.8) 
 
Interest Income4.2
 1.6
 0.1
 0.7
Other Operating Expense0.1
 (0.2) 
 
Total$6.0
 $(5.4) $0.1
 $0.7
(In Millions)INTEREST INCOMEINTEREST EXPENSEOTHER OPERATING INCOME
SIX MONTHS ENDED JUNE 30,202320222023202220232022
Total amounts on the consolidated statements of income$3,190.4 $908.3 $2,147.7 $68.6 $102.0 $86.7 
Gains (Losses) on fair value hedges recognized on
Interest Rate Contracts
Recognized on derivatives(13.5)57.7 (0.7)(253.7) — 
Recognized on hedged items13.5 (57.7)0.7 253.7  — 
Amounts related to interest settlements on derivatives23.6 (9.3)(41.0)24.9  — 
Total gains (losses) recognized on fair value hedges$23.6 $(9.3)$(41.0)$24.9 $ $— 
Gains (Losses) on cash flow hedges recognized on
Foreign Exchange Contracts
Net gains (losses) reclassified from AOCI to net income$1.2 $0.6 $ $— $1.6 $(3.8)
Total gains (losses) reclassified from AOCI to net income on cash flow hedges$1.2 $0.6 $ $— $1.6 $(3.8)
The following table provides the impact of fair value hedge accounting on the carrying value of the designated hedged items as of June 30, 2023 and December 31, 2022.
(In Millions)
Foreign Exchange
Contracts (Before Tax)
 
Interest Rate
Contracts (Before Tax)
Nine Months Ended September 30,2017 2016 2017 2016
Net Gain/(Loss) Recognized in AOCI$19.4
 $1.7
 $1.2
 $1.9
Net Gain/(Loss) Reclassified from AOCI to Net Income       
Other Operating Income4.2
 (8.5) 
 
Interest Income12.1
 1.6
 0.2
 2.5
Other Operating Expense(0.1) (0.7) 
 
Total$16.2
 $(7.6) $0.2
 $2.5
TABLE 78: HEDGED ITEMS IN FAIR VALUE HEDGES
JUNE 30, 2023DECEMBER 31, 2022
(In Millions)CARRYING VALUE OF THE HEDGED ITEMS
CUMULATIVE HEDGE ACCOUNTING BASIS ADJUSTMENT(1)(3)
CARRYING VALUE OF THE HEDGED ITEMS
CUMULATIVE HEDGE ACCOUNTING BASIS ADJUSTMENT(2)(3)
Available for Sale Debt Securities(4)
$1,534.8 $(41.5)$1,820.8 $(60.2)
Senior Notes and Long-Term Subordinated Debt2,449.2 (294.7)2,746.2 (294.0)
(1)    The cumulative hedge accounting basis adjustment includes $2.1 million related to discontinued hedging relationships of AFS debt securities as of June 30, 2023. There are no amounts related to discontinued hedging relationships in the cumulative hedge accounting basis adjustment of senior notes and long-term debt as of June 30, 2023.
(2)    The cumulative hedge accounting basis adjustment includes $7.3 million related to discontinued hedging relationships of AFS debt securities as of December 31, 2022. There were no material gains or losses reclassified into earnings duringamounts related to discontinued hedging relationships in the threecumulative hedge accounting basis adjustment of senior notes and nine months ended September 30, 2017long-term debt as of December 31, 2022.
(3) Positive (negative) amounts related to AFS securities represent cumulative fair value hedge basis adjustments that will reduce (increase) net interest income in future periods. Positive (negative) amounts related to Senior Notes and 2016, as a result of the discontinuance of forecasted transactionsLong-Term Subordinated Debt represent cumulative fair value hedge basis adjustments that were no longer probable of occurring. It is estimated that awill increase (reduce) net gain of $2.8 million and a net gain of $0.2 million will be reclassified into netinterest income within the next twelve months relating to cash flow hedges of foreign currency denominated transactions and cash flow hedges of foreign currency denominated investment securities, respectively. It is estimated that a net gain of $0.1 million will be reclassified into net income upon the receipt of interest payments on earning assets within the next twelve months relating to cash flow hedges of available for sale investment securities.in future periods.
(4)    Carrying value represents amortized cost.
Net Investment Hedges. Certain foreign exchange contracts and qualifying nonderivative instruments are designated as net investment hedges to minimize Northern Trust’s exposure to variability in the foreign currency translation of net investments in non-U.S. branches and subsidiaries. There was no ineffectiveness recorded during the three and nine months ended September 30, 2017 and 2016. Amounts recorded in AOCI are reclassified to net income only upon the sale or liquidation of an investment in a non-U.S. branch or subsidiary.
The following table provides netNet investment hedge losses of $30.6 million and gains and lossesof $204.3 million were recognized in AOCI duringrelated to foreign exchange contracts for the three and nine months ended SeptemberJune 30, 20172023 and 2016.
Table 65:2022, respectively. Net Investment Hedge Gainsinvestment hedge losses of $63.1 million and Losses Recognizedgains of $263.7 million were recognized in AOCI related to foreign exchange contracts for the six months ended June 30, 2023 and 2022, respectively.
 
Hedging Gain / (Loss)
Recognized in OCI (Before Tax)
 Three Months Ended September 30, Nine Months Ended September 30,
(In Millions)2017 2016 2017 2016
Foreign Exchange Contracts$(62.3) $4.1
 $(194.7) $87.6
Total$(62.3) $4.1
 $(194.7) $87.6

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Notes to Consolidated Financial Statements (unaudited) (continued)

DerivativesDerivative Instruments Not Designated as Hedging under GAAP. Northern Trust’s derivative instruments that are not formally designated as a hedgehedging under GAAP are entered intoinclude derivatives for purposes of client-related and trading activities, as well as other risk management purposes. ForeignThese activities consist principally of providing foreign exchange services to clients in connection with Northern Trust’s global custody business. However, in the normal course of business, Northern Trust also engages in trading of currencies for its own account.
Non-designated risk management derivatives include foreign exchange contracts are entered into to manage the foreign currency risk of non-U.S.-dollar-denominated assets and liabilities, the net investment in certain non-U.S. affiliates, commercial loans and forecasted foreign-currency-denominated transactions. Swaps related to sales of certain Visa Class B common shares were entered into pursuant to which Northern Trust retains the risks associated with the ultimate conversion of the Visa Class B common shares into Visa Class A common shares. Credit default swaps were entered into to manage credit risk associated with certain loans and loan commitments. Total return swaps are entered into to manage the equity price risk associated with certain investments. The following table identifies the types of risk management derivative instruments not formally designated as hedges and their notional amounts and fair values.
Table 66: Notional and Fair Values of Non-Designated Risk Management Derivative Instruments
 September 30, 2017 December 31, 2016
(In Millions)
Notional
Value
 Fair Value 
Notional
Value
 Fair Value
Asset Liability Asset Liability
Foreign Exchange Contracts$996.4
 $8.7
 $2.9
 $289.6
 $0.8
 $1.8
Other Financial Derivatives (1)
364.3
 
 27.7
 270.0
 
 25.2
Total$1,360.7
 $8.7
 $30.6
 $559.6
 $0.8
 $27.0
(1)
This line includes swaps related to sales of certain Visa Class B common shares.
Changes in the fair value of derivative instruments not formally designated as hedges under GAAP are recognized currently in income. The following table provides the location and amount of gains and losses recorded in the consolidated statements of income for the three and ninesix months ended SeptemberJune 30, 20172023 and 2016.
Table 67: Location and Amount of Gains and Losses Recorded in Income2022 for Non-Designated Risk Management Derivative Instrumentsderivative instruments not designated as hedges under GAAP.
79
(In Millions)
Location of
Derivative Gain / (Loss) Recognized
in Income
Amount of Derivative Gain / (Loss)
Recognized in Income
Three Months Ended September 30, Nine Months Ended September 30,
2017 2016 2017 2016
Foreign Exchange ContractsOther Operating Income$(5.9) $(1.2) $2.2
 $(0.2)
Other Financial Derivatives (1)
Other Operating Income(4.0) (2.3) (8.4) (8.6)
Total $(9.9) $(3.5) $(6.2) $(8.8)
(1)
This line includes swaps related to sales of certain Visa Class B common shares, total return swap contracts, and credit default swap contracts.

78

Notes to Consolidated Financial Statements (unaudited) (continued)

TABLE 79: LOCATION AND AMOUNT OF GAINS AND LOSSES RECORDED IN INCOME FOR DERIVATIVES NOT DESIGNATED AS HEDGING UNDER GAAP
(In Millions)DERIVATIVE GAINS (LOSSES) LOCATION RECOGNIZED IN INCOMEAMOUNT OF DERIVATIVE GAINS (LOSSES) RECOGNIZED IN INCOME
THREE MONTHS ENDED JUNE 30,SIX MONTHS ENDED JUNE 30,
2023202220232022
Non-designated risk management derivatives
Foreign Exchange ContractsOther Operating Income$0.8 $(4.1)$1.5 $(1.4)
Other Financial Derivatives(1)
Other Operating Income(11.9)(5.6)(20.7)(10.1)
Gains (Losses) from non-designated risk management derivatives$(11.1)$(9.7)$(19.2)$(11.5)
Client-related and trading derivatives
Foreign Exchange ContractsForeign Exchange Trading Income$50.1 $77.6 $103.1 $158.5 
Interest Rate ContractsSecurity Commissions and Trading Income4.4 3.2 6.9 4.2 
Gains from client-related and trading derivatives$54.5 $80.8 $110.0 $162.7 
Total gains from derivatives not designated as hedging under GAAP$43.4 $71.1 $90.8 $151.2 
(1)    This line includes swaps related to the sale of certain Visa Class B common shares and total return swap contracts.
Note 2122 – Securities Sold Under Agreements to Repurchase
Securities sold under agreements to repurchase are accounted for as collateralized financings and recorded at the amounts at which the securities were sold plus accrued interest. To minimize any potential credit risk associated with these transactions, the fair value of the securities sold is monitored, limits are set on exposure with counterparties, and the financial condition of counterparties is regularly assessed. Securities sold under agreements to repurchase are either directly held by, or pledged to the counterparty until the repurchase. Northern Trust nets securities sold under repurchase agreements against those purchased under resale agreements when there is a legally enforceable master netting agreement and the conditions to net are met.
The following table provides information regarding repurchase agreements that are accounted for as secured borrowings as of June 30, 2023 and December 31, 2022.
TABLE 80: REPURCHASE AGREEMENTS ACCOUNTED FOR AS SECURED BORROWINGS
REMAINING CONTRACTUAL MATURITY OF THE AGREEMENTS
JUNE 30, 2023DECEMBER 31, 2022
($ In Millions)OVERNIGHT AND CONTINUOUS
U.S. Treasury and Agency Securities$988.1 $567.2 
Total Borrowings988.1 567.2 
Net Amount of Recognized Liabilities for Repurchase Agreements in Note 23988.1 567.2 

80

Notes to Consolidated Financial Statements (unaudited) (continued)
Note 23 – Offsetting of Assets and Liabilities
Northern Trust has elected to net securities sold under repurchase agreements against those purchased under resale agreements and derivative assets and liabilities, when legally enforceable master netting arrangements or similar agreements exist between Northern Trust and the counterparty.
The following tables providetable provides information regarding the offsetting of derivative assets and securities purchased under agreements to resell within the consolidated balance sheets as of SeptemberJune 30, 20172023 and December 31, 2016.2022.
Table 68: TABLE 81: OFFSETTING OF DERIVATIVE ASSETS AND SECURITIES PURCHASED UNDER AGREEMENTS TO RESELL
JUNE 30, 2023
(In Millions)GROSS RECOGNIZED ASSETS
GROSS AMOUNTS OFFSET IN THE BALANCE SHEET(3)
NET AMOUNTS PRESENTED IN THE BALANCE SHEET
GROSS AMOUNTS NOT OFFSET IN THE BALANCE SHEET(4)
NET AMOUNT(5)
Derivative Assets(1)
Foreign Exchange Contracts Over the Counter (OTC)$1,827.6 $1,001.1 $826.5 $3.9 $822.6 
Interest Rate Swaps OTC313.9 244.8 69.1  69.1 
Interest Rate Swaps Exchange Cleared     
Other Financial Derivative     
Total Derivatives Subject to a Master Netting Arrangement2,141.5 1,245.9 895.6 3.9 891.7 
Total Derivatives Not Subject to a Master Netting Arrangement436.5  436.5  436.5 
Total Derivatives2,578.0 1,245.9 1,332.1 3.9 1,328.2 
Securities Purchased under Agreements to Resell(2)
$35,761.2 $34,532.3 $1,228.9 $1,228.9 $ 
DECEMBER 31, 2022
(In Millions)GROSS RECOGNIZED ASSETS
GROSS AMOUNTS OFFSET IN THE BALANCE SHEET(3)
NET AMOUNTS PRESENTED IN THE BALANCE SHEET
GROSS AMOUNTS NOT OFFSET IN THE BALANCE SHEET(4)
NET AMOUNT(5)
Derivative Assets(1)
Foreign Exchange Contracts OTC$2,928.9 $2,666.4 $262.5 $5.0 $257.5 
Interest Rate Swaps OTC217.6 144.3 73.3 — 73.3 
Interest Rate Swaps Exchange Cleared4.4 — 4.4 — 4.4 
Other Financial Derivative0.3 — 0.3 — 0.3 
Total Derivatives Subject to a Master Netting Arrangement3,151.2 2,810.7 340.5 5.0 335.5 
Total Derivatives Not Subject to a Master Netting Arrangement581.2 — 581.2 — 581.2 
Total Derivatives3,732.4 2,810.7 921.7 5.0 916.7 
Securities Purchased under Agreements to Resell(2)
$12,494.2 $11,423.9 $1,070.3 $1,070.3 $— 
(1)Derivative assets are reported in Other Assets on the consolidated balance sheets. Other Assets (excluding derivative assets) totaled $9.8 billion and $8.9 billion as of June 30, 2023 and December 31, 2022, respectively.
(2)Offsetting of Derivative Assets and Securities Purchased Underunder Agreements to Resell primarily relates to our involvement in the FICC.
(3)Including cash collateral received from counterparties.
(4)Including financial assets accepted as collateral which are received from counterparties.
(5)Northern Trust did not possess any cash collateral that was not offset in the consolidated balance sheets that could have been used to offset the net amounts presented in the consolidated balance sheets as of June 30, 2023 and December 31, 2022.

81
September 30, 2017         
(In Millions)
Gross
Recognized
Assets
 
Gross
Amounts
Offset
 
Net
Amounts
Presented
 
Gross
Amounts
Not Offset
 
Net
Amount (3)
Derivative Assets (1)
         
Foreign Exchange Contracts Over the Counter (OTC)$2,459.4
 $1,702.0
 $757.4
 $
 $757.4
Interest Rate Swaps OTC3.0
 12.4
 (9.4) 
 (9.4)
Interest Rate Swaps Exchange Cleared114.1
 22.1
 92.0
 
 92.0
Cross Product Netting Adjustment
 19.1
 
 
 
Cross Product Collateral Adjustment
 617.9
 
 
 
Total Derivatives Subject to a Master Netting Arrangement2,576.5
 2,373.5
 203.0
 
 203.0
Total Derivatives Not Subject to a Master Netting Arrangement640.7
 
 640.7
 
 640.7
Total Derivatives$3,217.2
 $2,373.5
 $843.7
 $
 $843.7
Securities Purchased under Agreements to Resell (2)
$1,605.8
 $
 $1,605.8
 $1,605.8
 $
December 31, 2016         
(In Millions)
Gross
Recognized
Assets
 
Gross
Amounts
Offset
 
Net
Amounts
Presented
 
Gross
Amounts
Not Offset
 
Net
Amount (3)
Derivative Assets (1)
         
Foreign Exchange Contracts OTC$2,800.4
 $1,651.9
 $1,148.5
 $
 $1,148.5
Interest Rate Swaps OTC129.8
 18.2
 111.6
 
 111.6
Interest Rate Swaps Exchange Cleared117.4
 21.8
 95.6
 
 95.6
Cross Product Netting Adjustment
 17.2
 
 
 
Cross Product Collateral Adjustment
 461.3
 
 
 
Total Derivatives Subject to a Master Netting Arrangement3,047.6
 2,170.4
 877.2
 
 877.2
Total Derivatives Not Subject to a Master Netting Arrangement809.2
 
 809.2
 
 809.2
Total Derivatives3,856.8
 2,170.4
 1,686.4
 
 1,686.4
Securities Purchased under Agreements to Resell (2)
$1,967.5
 $
 $1,967.5
 $1,967.5
 $
(1)
Derivative assets are reported in other assets in the consolidated balance sheets. Other assets (excluding derivative assets) totaled $3.8 billion and $3.3 billion as of September 30, 2017 and December 31, 2016, respectively.
(2)
Securities purchased under agreements to resell are reported in federal funds sold and securities purchased under agreements to resell in the consolidated balance sheets. There were $65.0 million Federal funds sold and $6.8 million Federal funds sold as of September 30, 2017 and December 31, 2016, respectively.
(3)
Northern Trust did not possess any cash collateral that was not offset in the consolidated balance sheets that could have been used to offset the net amounts presented in the consolidated balance sheets as of September 30, 2017 and December 31, 2016.

79

Notes to Consolidated Financial Statements (unaudited) (continued)

The following tables providetable provides information regarding the offsetting of derivative liabilities and securities sold under agreements to repurchase within the consolidated balance sheets as of SeptemberJune 30, 20172023 and December 31, 2016.2022.
Table 69: TABLE 82: OFFSETTING OF DERIVATIVE LIABILITIES AND SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE
JUNE 30, 2023
(In Millions)GROSS RECOGNIZED LIABILITIES
GROSS AMOUNTS OFFSET IN THE BALANCE SHEET(3)
NET AMOUNTS PRESENTED IN THE BALANCE SHEET
GROSS AMOUNTS NOT OFFSET IN THE BALANCE SHEET(4)
NET AMOUNT(5)
Derivative Liabilities(1)
Foreign Exchange Contracts OTC$1,632.2 $1,422.1 $210.1 $ $210.1 
Interest Rate Swaps OTC408.1 4.1 404.0  404.0 
Other Financial Derivatives36.4 34.8 1.6  1.6 
Total Derivatives Subject to a Master Netting Arrangement2,076.7 1,461.0 615.7  615.7 
Total Derivatives Not Subject to a Master Netting Arrangement530.4  530.4  530.4 
Total Derivatives2,607.1 1,461.0 1,146.1  1,146.1 
Securities Sold under Agreements to Repurchase(2)
$35,520.4 $34,532.3 $988.1 $988.1 $ 
DECEMBER 31, 2022
(In Millions)GROSS RECOGNIZED LIABILITIES
GROSS AMOUNTS OFFSET IN THE BALANCE SHEET(3)
NET AMOUNTS PRESENTED IN THE BALANCE SHEET
GROSS AMOUNTS NOT OFFSET IN THE BALANCE SHEET(4)
NET AMOUNT(5)
Derivative Liabilities(1)
Foreign Exchange Contracts OTC$2,082.3 $1,826.7 $255.6 $— $255.6 
Interest Rate Swaps OTC426.5 5.9 420.6 — 420.6 
Interest Rate Swaps Exchange Cleared5.3 — 5.3 — 5.3 
Other Financial Derivatives34.8 33.3 1.5 — 1.5 
Total Derivatives Subject to a Master Netting Arrangement2,548.9 1,865.9 683.0 — 683.0 
Total Derivatives Not Subject to a Master Netting Arrangement1,105.2 — 1,105.2 — 1,105.2 
Total Derivatives3,654.1 1,865.9 1,788.2 — 1,788.2 
Securities Sold under Agreements to Repurchase(2)
$11,991.1 $11,423.9 $567.2 $567.2 $— 
(1)Derivative liabilities are reported in Other Liabilities on the consolidated balance sheets. Other Liabilities (excluding derivative liabilities) totaled $3.3 billion and $3.2 billion as of June 30, 2023 and December 31, 2022, respectively.
(2)Offsetting of Derivative Liabilities and Securities Sold Underunder Agreements to Repurchase primarily relates to our involvement in the FICC.
(3)Including cash collateral deposited with counterparties.
September 30, 2017         
(In Millions)
Gross
Recognized
Liabilities
 
Gross
Amounts
Offset
 
Net
Amounts
Presented
 
Gross
Amounts
Not Offset
 
Net
Amount (2)
Derivative Liabilities (1)
         
Foreign Exchange Contracts OTC$2,215.8
 $1,702.0
 $513.8
 $
 $513.8
Interest Rate Swaps OTC62.0
 12.4
 49.6
 
 49.6
Interest Rate Swaps Exchange Cleared22.1
 22.1
 
 
 
Other Financial Derivatives27.7
 
 27.7
 
 27.7
Cross Product Netting Adjustment
 19.1
 
 
 
Cross Product Collateral Adjustment
 334.2
 
 
 
Total Derivatives Subject to a Master Netting Arrangement2,327.6
 2,089.8
 237.8
 
 237.8
Total Derivatives Not Subject to a Master Netting Arrangement952.8
 
 952.8
 
 952.8
Total Derivatives3,280.4
 2,089.8
 1,190.6
 
 1,190.6
Securities Sold under Agreements to Repurchase$523.9
 $
 $523.9
 $523.9
 $
(4)Including financial assets accepted as collateral which are deposited with counterparties.
(5)Northern Trust did not place any cash collateral with counterparties that was not offset in the consolidated balance sheets that could have been used to offset the net amounts presented in the consolidated balance sheets as of June 30, 2023 and December 31, 2022.
December 31, 2016         
(In Millions)
Gross
Recognized
Liabilities
 
Gross
Amounts
Offset
 
Net
Amounts
Presented
 
Gross
Amounts
Not Offset
 
Net
Amount (2)
Derivative Liabilities (1)
         
Foreign Exchange Contracts OTC$2,634.4
 $1,651.9
 $982.5
 $
 $982.5
Interest Rate Swaps OTC86.2
 18.2
 68.0
 
 68.0
Interest Rate Swaps Exchange Cleared21.8
 21.8
 
 
 
Other Financial Derivatives25.2
 
 25.2
 
 25.2
Cross Product Netting Adjustment
 17.2
 
 
 
Cross Product Collateral Adjustment
 722.1
 
 
 
Total Derivatives Subject to a Master Netting Arrangement2,767.6
 2,431.2
 336.4
 
 336.4
Total Derivatives Not Subject to a Master Netting Arrangement608.5
 
 608.5
 
 608.5
Total Derivatives3,376.1
 2,431.2
 944.9
 
 944.9
Securities Sold under Agreements to Repurchase$473.7
 $
 $473.7
 $473.7
 $
(1)
Derivative liabilities are reported in other liabilities in the consolidated balance sheets. Other liabilities (excluding derivative liabilities) totaled $2.1 billion and $2.7 billion as of September 30, 2017 and December 31, 2016, respectively.
(2)
Northern Trust did not place any cash collateral with counterparties that was not offset in the consolidated balance sheets that could have been used to offset the net amounts presented in the consolidated balance sheets as of September 30, 2017 and December 31, 2016.
All of Northern Trust’s securities sold under agreements to repurchase (repurchase agreements) and securities purchased under agreements to resell (reverse repurchase agreements) involve the transfer of financial assets in exchange for cash subject to a right and obligation to repurchase those assets for an agreed upon amount. In the event of a repurchase failure, the cash or financial assets are available for offset. All of Northern Trust’s repurchase agreements and reverse repurchase agreements are subject to a master netting arrangement, which sets forth the rights and obligations for repurchase and offset. Under the master netting

80

Notes to Consolidated Financial Statements (unaudited) (continued)

arrangement, Northern Trust is entitled to set offoffset receivables from and collateral placed with a single counterparty against obligations owed to that counterparty. In addition, collateral held by Northern Trust can be offset against receivables from that counterparty.
Derivative asset and liability positions with a single counterparty can be offset against each other in cases where legally enforceable master netting arrangements or similar agreements exist. Derivative assets and liabilities can be further offset by cash collateral received from, and deposited with, the transacting counterparty. The basis for this view is that, upon termination of transactions subject to a master netting arrangement or similar agreement, the individual derivative receivables do not represent resources to which general creditors have rights and individual derivative payables do not represent claims that are equivalent to the claims of general creditors.
Credit risk associated with derivative instruments relates to the failure of the counterparty and the failure of Northern Trust centrally clearsto pay based on the contractual terms of the agreement, and is generally limited to the unrealized fair value gains and losses on these instruments, net of any collateral received or deposited. The amount of credit risk will increase or decrease during the lives of the instruments as interest rates, foreign exchange rates, or equity prices fluctuate. Northern Trust’s risk is controlled by limiting such activity to an approved list of counterparties and by subjecting such activity to the same credit and quality controls
82

Notes to Consolidated Financial Statements (unaudited) (continued)
as are followed in lending and investment activities. Credit support annexes and other similar agreements are currently in place with a number of Northern Trust’s counterparties which mitigate the aforementioned credit risk associated with derivative activity conducted with those interest ratecounterparties by requiring that significant net unrealized fair value gains be supported by collateral placed with Northern Trust.
Additional cash collateral received from and deposited with derivative counterparties totaling $75.8 million and $129.2 million, respectively, as of June 30, 2023, and $131.8 million and $26.3 million, respectively, as of December 31, 2022, was not offset against derivative assets and liabilities in the consolidated balance sheets as the amounts exceeded the net derivative positions with those counterparties.
Certain master netting arrangements Northern Trust enters into with derivative counterparties contain credit-risk-related contingent features in which the counterparty has the option to declare Northern Trust in default and accelerate cash settlement of net derivative liabilities with the counterparty in the event Northern Trust’s credit rating falls below specified levels. The aggregate fair value of all derivative instruments addressed under Title VII of the Dodd-Frank Wall Street Reform and Consumer Protection Act. These transactions are subject to an agreement similar towith credit-risk-related contingent features that were in a master netting arrangement which has the same rights of offset as described above.
Note 22 – Subsequent Events
On October 1, 2017, Northern Trust completed its acquisition of UBS Asset Management’s fund administration servicing businesses in Luxembourg and Switzerland. The purchase price recorded in connection with the closing of the acquisition, which remains subject to adjustment through May 2018, totaled $199.4liability position was $354.8 million and was comprised$190.9 million at June 30, 2023 and December 31, 2022, respectively. Cash collateral amounts deposited with derivative counterparties on those dates included $290.0 million and $55.1 million, respectively, posted against these liabilities, resulting in a net maximum amount of $180.0termination payments that could have been required at June 30, 2023 and December 31, 2022, of $64.8 million and $135.8 million, respectively. Accelerated settlement of cash and $19.4 millionthese liabilities would not have a material effect on the consolidated financial position or liquidity of contingent consideration.Northern Trust.

81





Item 4. Controls and Procedures
As of SeptemberJune 30, 2017,2023, the Corporation’s management, with the participation of the Corporation’s Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of the Corporation’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the Exchange Act)), that are designed to ensure that information required to be disclosed by the Corporation in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified by the SEC’s rules and forms. Based on such evaluation, such officers have concluded that, as of SeptemberJune 30, 2017,2023, the Corporation’s disclosure controls and procedures are effective.
There have been no changes in the Corporation’s internal control over financial reporting identified in connection with the evaluation required by Rules 13a-15 and 15d-15 under the Exchange Act during the last fiscal quarter that have materially affected, or that are reasonably likely to materially affect, the Corporation’s internal control over financial reporting.
83





PART II — OTHER INFORMATION
Item 1. Legal Proceedings
The information presented under the caption “Legal Proceedings” in “Note 19 —Note 20—Commitments and Contingent Liabilities”Liabilities included under Part I, Item 1 of this Form 10-Q is incorporated herein by reference.
Item 1A. Risk Factors
Refer to “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2022, for a discussion of risks identified as being most significant to Northern Trust.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
(c) The following table shows certain information relating to the Corporation’s purchases of common stock for the three months ended SeptemberJune 30, 2017.2023.
Table 70: RepurchasesTABLE 83: REPURCHASES OF COMMON STOCK
PERIODTOTAL NUMBER OF SHARES PURCHASEDAVERAGE PRICE PAID PER SHARETOTAL NUMBER OF SHARES PURCHASED AS PART OF A PUBLICLY ANNOUNCED PLANMAXIMUM NUMBER OF SHARES THAT MAY YET BE PURCHASED UNDER THE PLAN
April 1 - 30, 2023103,771 $77.09 103,771 24,172,813 
May 1 - 31, 20231,215,671 72.37 1,215,671 22,957,142 
June 1 - 30, 202327,790 72.78 27,790 22,929,352 
Total (Second Quarter)1,347,232 $72.74 1,347,232 22,929,352 
On October 19, 2021, the Corporation announced a share repurchase program under which the Corporation’s Board of Common StockDirectors authorized the Corporation to repurchase up to 25.0 million shares of the Corporation’s common stock. The repurchase authorization approved by the Board of Directors has no expiration date, thus the Corporation retains the ability to repurchase when circumstances warrant and applicable regulation permits. Please refer to Note 10—Stockholders’ Equity to the consolidated financial statements provided in Item 1. Consolidated Financial Statements (unaudited).
Item 3. Defaults Upon Senior Securities
None.
Item 4. Mine Safety Disclosures
Not applicable.
Item 5. Other Information
During the three months ended June 30, 2023, none of our directors or officers (as defined in Rule 16a-1(f) promulgated under the Securities Exchange Act of 1934, as amended) adopted, terminated or modified a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement (as such terms are defined in Item 408 of Regulation S-K).
84
PeriodTotal Number
of Shares
Purchased
 Average
Price Paid
per Share
 
Total Number of
Shares Purchased
as Part of a Publicly
Announced Plan
(1)
 Maximum Number of
Shares that May Yet
Be Purchased
Under the Plan
July 1-31, 2017140,940
 $87.98
 140,940
 9,359,060
August 1-31, 2017805,946
 88.47
 805,946
 8,553,114
September 1-30, 2017420,939
 88.37
 420,939
 8,132,175
Total (Third Quarter)1,367,825
 $88.39
 1,367,825
 8,132,175






Item 6. Exhibits
Exhibit
Number
Description
4.1Certain instruments defining the rights of the holders of long-term debt of the Corporation and certain of its subsidiaries, none of which authorize a total amount of indebtedness in excess of 10% of the total assets of the Corporation and its subsidiaries on a consolidated basis, have not been filed as exhibits. The Corporation hereby agrees to furnish a copy of any of these agreements to the SEC upon request.
(1) 31.1
Repurchases through July 18, 2017 were made pursuant
101Includes the following financial and related information from Northern Trust’s Quarterly Report on Form 10-Q as of and for the quarter ended June 30, 2023, formatted in Inline Extensible Business Reporting Language (iXBRL): (1) the Consolidated Balance Sheets, (2) the Consolidated Statements of Income, (3) the Consolidated Statements of Comprehensive Income, (4) the Consolidated Statements of Changes in Stockholders’ Equity, (5) the Consolidated Statements of Cash Flows, and (6) Notes to Consolidated Financial Statements.
104The cover page from this Quarterly Report on Form 10-Q, formatted in Inline XBRL.
Item 6. Exhibits
A list of exhibits to this Form 10-Q is set forth on the Exhibit Index immediately preceding such exhibits and is incorporated herein by reference.

82
85



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
NORTHERN TRUST CORPORATION
(Registrant)
Date: July 25, 2023NORTHERN TRUST CORPORATIONBy:/s/ Jason J. Tyler
(Registrant)
Date: October 26, 2017By:/s/ S. Biff Bowman
S. Biff Bowman
Jason J. Tyler
Executive Vice President and

Chief Financial Officer

(Duly Authorized Officer and Principal Financial Officer)
Date:October 26, 2017July 25, 2023By:/s/ Aileen B. BlakeLauren Allnutt
Aileen B. Blake
Lauren Allnutt
Executive Vice President and Controller

(Principal Accounting Officer)


83





EXHIBIT INDEX
Exhibit
Number
Description
4.1Certain instruments defining the rights of the holders of long-term debt of the Corporation and certain of its subsidiaries, none of which authorize a total amount of indebtedness in excess of 10% of the total assets of the Corporation and its subsidiaries on a consolidated basis, have not been filed as exhibits. The Corporation hereby agrees to furnish a copy of any of these agreements to the SEC upon request.
101
Includes the following financial and related information from Northern Trust’s Quarterly Report on Form 10-Q as of and for the quarter ended September 30, 2017, formatted in Extensible Business Reporting Language (XBRL): (1) the Consolidated Balance Sheets as of September 30, 2017 and December 31, 2016, (2) the Consolidated Statements of Income for the three and nine months ended September 30, 2017 and 2016, (3) the Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2017 and 2016, (4) the Consolidated Statements of Changes in Stockholders’ Equity for the nine months ended September 30, 2017 and 2016, (5) the Consolidated Statements of Cash Flows for the nine months ended September 30, 2017 and 2016, and (6) Notes to Consolidated Financial Statements


8486