0001109357-26-000067 | 11-K | XBRL Viewer

Label	Element	Value
EBP 001 [Member]
EBP, Contribution [Policy Text Block]	us-gaap-ebp_EmployeeBenefitPlanContributionPolicyTextBlock	Participant Contributions The Plan generally permits salaried, non-represented hourly and participating represented employees to elect to contribute between 1% and 50% (percentage varies for some represented employees based on the applicable collective bargaining agreement) of eligible pay each pay period on a pre-tax basis, an after-tax basis, a Roth basis or a combination of the three, subject to certain Internal Revenue Service (“IRS”) limitations. During any calendar year in which a participant attains age 50 or older, he or she generally may elect to make additional pre-tax contributions, called “catch-up” contributions, to the Plan. In order to be eligible to make catch-up contributions, the participant must anticipate that his or her pre-tax contributions to the Plan will reach the applicable annual IRS limit on that type of contribution or be contributing at the maximum base pay level. Catch-up contributions are not credited with the Company’s fixed or variable company match contributions.
EBP, Basis of Accounting [Policy Text Block]	us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock	The Plan follows the accrual method of accounting, in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Withdrawals and distributions are recorded when paid.
EBP, Use of Estimate [Policy Text Block]	us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock	Use of Estimates The preparation of financial statements in conformity with GAAP requires the Plan Administrator to make estimates and assumptions that affect the reported amounts of assets, liabilities, and changes therein, and disclosure of contingent assets and liabilities. Accordingly, actual results may differ from those estimates.
EBP, Investment [Policy Text Block]	us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock	Investment Valuation and Income Recognition The Plan’s interest in the Master Trust is stated at fair value. Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. The Plan presents, in the Statement of Changes in Net Assets Available for Benefits, the Plan interest in investment income from the Master Trust. See Note 3 — Fair Value of Interest in Master Trust for further information.
EBP, Expense [Policy Text Block]	us-gaap-ebp_EmployeeBenefitPlanExpensePolicyTextBlock	Plan Expenses A participant’s account balance will be charged with certain fees and expenses. Asset-based fees (e.g., management fees and other fund operating expenses) are used to cover the expenses related to running an investment fund, and are generally deducted directly from a participant’s investment returns. The asset-based fees relating to the target date and actively-managed custom funds are primarily presented within the investment and administrative fees of the Master Trust. See Note 3 — Fair Value of Interest in Master Trust for further information. Plan administration fees, which may include certain direct expenses, cover the day-to-day expenses of administering the Plan and are covered by amounts deducted directly from participant accounts. Transaction-based fees also may be charged with respect to optional features offered under the Plan (e.g., loans) and are charged directly against a participant’s account balance.
EBP, Note Receivable from Participant [Policy Text Block]	us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock	Notes Receivable from Participants Notes receivable from participants are valued at their unpaid principal balance plus accrued interest. No allowance for credit losses has been recorded as of December 31, 2025 or 2024.

Cover	12 Months Ended
Dec. 31, 2025
Document Information [Line Items]
Document Type	11-K
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Entity Central Index Key	0001109357
Document Fiscal Period Focus	FY
Document Period End Date	Dec. 31, 2025
Entity Registrant Name	EXELON CORP

Employee Benefit Plan, Statement of Net Asset Available for Benefit (Statement) - EBP 001 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
Investments, at fair value
Plan interest in the net assets of the Exelon Corporation Defined Contribution Retirement Plans Master Trust	$ 6,899,416,502	$ 6,151,413,028
Receivables
Participant contributions	8,109,108	7,371,411
Fixed match and automatic company contributions	25,505,861	20,894,685
Variable company match contributions	19,515,242	17,602,000
Notes receivable from participants	120,856,238	114,807,394
Total receivables	173,986,449	160,675,490
NET ASSETS AVAILABLE FOR BENEFITS	$ 7,073,402,951	$ 6,312,088,518

Employee Benefit Plan, Comprehensive Text Block - EBP 001

12 Months Ended

Dec. 31, 2025

EBP, Investment, Fair Value and NAV [Line Items]

EBP, Description of Plan

Plan Description

The following description of the Exelon Corporation Employee Savings Plan (the “Plan”) is provided for general information purposes only. The official text of the Plan, as amended, should be read for more complete information.

General

The Plan was established by Commonwealth Edison Company, effective March 1, 1983, to provide a systematic savings program for eligible employees and to supplement such savings with employer matching contributions. On March 30, 2001, the Commonwealth Edison Employee Savings and Investment Plan was combined with the PECO Energy Company Employee Savings Plan to become the Exelon Corporation Employee Savings Plan. On July 1, 2014, the Constellation Energy Group, Inc. Employee Savings Plan was merged into the Plan. On July 1, 2015, the Employee Savings Plan for Constellation Energy Nuclear Group, LLC and Represented Employee Savings Plan for Nine Mile Point were merged into the Plan. On July 1, 2018, the BG New England Power Services, Inc. Union Retirement 401(k) Plan, BG New England Power Services, Inc. 401(k) Plan, BG Boston Services LLC Union Retirement 401(k) Plan, and Pepco Holdings Inc. Retirement Savings Plan were merged into the Plan. Exelon completed the spinoff of its generation business on February 1, 2022, creating Constellation Energy Corporation (“Constellation”), a new and separate publicly traded company (the “Separation”). Trust assets having a value equal to the account balances and accrued liabilities (including outstanding loans) of current and former employees who were assigned to Constellation Energy Corporation were spun off to the trust established under a newly created savings plan sponsored by Constellation Energy Generation, LLC, a subsidiary of Constellation Energy Corporation (the “Constellation Plan”). The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), and the Internal Revenue Code of 1986, as amended (the “Code”). The Exelon Corporation Stock Fund, which is an investment option under the Plan, is invested primarily in Exelon Corporation common stock and is intended to be an Employee Stock Ownership Plan under Code Section 4975(e)(7).

Exelon Corporation (“Exelon”) is the sponsor of the Plan and, acting through the Exelon Corporation Benefit Plan Administrative Committee, the administrator of the Plan (the “Plan Administrator”). The Plan Administrator has the responsibility for the day-to-day administration of the Plan. Exelon, acting through the Exelon Investment Office, is responsible for the selection and retention of the Plan’s investment options and any investment manager that may be appointed under the Exelon Corporation Defined Contribution Retirement Plans Master Trust (the “Master Trust”). State Street Global Advisors is the independent investment manager for the common stock held in the Exelon Corporation Stock Fund. The Northern Trust Company is the Plan’s trustee (“Trustee”) and Voya Financial, Inc. is the Plan’s recordkeeper (“Recordkeeper”). Effective December 10, 2025, the Plan changed its recordkeeping services provider from Northwest Plan Services, Inc. to Voya Financial, Inc. This change did not result in a change in the Plan’s trustee, custodian, or investment options, and Plan assets were not transferred as part of this change.

Generally, any regular employee whose employment is subject to a collective bargaining agreement that provides for participation in the Plan and any regular non-represented employee of a subsidiary of Exelon that is designated by Exelon as participating in the Plan (such subsidiary referred to individually and collectively as the “Company”) is eligible to elect to participate in the Plan. Newly hired employees who are eligible to participate but do not make a participation election within 90 days after their date of hire will automatically be enrolled in the Plan as soon as administratively practicable after their 90th day of employment with a pre-tax deferral of 3% of eligible pay per pay period and 1% increase each March 1st, generally beginning with the second calendar year that begins after automatic enrollment first applies to the participant, until the deferral rate reaches 10%. A participant

who is subject to automatic enrollment may elect within 90 days of the first automatic contribution, to withdraw all automatic contributions adjusted for any investment gains or losses. Such a withdrawal would be subject to federal income tax but not to any early withdrawal penalty. Additionally, the participant will forfeit any employer matching contributions made with respect to such automatic contributions. Contributions to the Plan made by employees who did not file an investment election generally will be automatically invested in the custom target retirement fund that corresponds to the participant’s assumed retirement date (based on the participant’s birth date).

Participant Contributions

The Plan generally permits salaried, non-represented hourly and participating represented employees to elect to contribute between 1% and 50% (percentage varies for some represented employees based on the applicable collective bargaining agreement) of eligible pay each pay period on a pre-tax basis, an after-tax basis, a Roth basis or a combination of the three, subject to certain Internal Revenue Service (“IRS”) limitations.

During any calendar year in which a participant attains age 50 or older, he or she generally may elect to make additional pre-tax contributions, called “catch-up” contributions, to the Plan. In order to be eligible to make catch-up contributions, the participant must anticipate that his or her pre-tax contributions to the Plan will reach the applicable annual IRS limit on that type of contribution or be contributing at the maximum base pay level. Catch-up contributions are not credited with the Company’s fixed or variable company match contributions.

Company Contributions

With respect to non-represented employees, except non-exempt craft and clerical employees assigned to Philadelphia Electric Company, Exelon provides both a fixed and annual variable company match. Under the fixed company match, Exelon matches 60% of the first 5% of a participant’s eligible pay contributed per pay period, by the employee for a maximum annual fixed company match percentage of 3% of the participant’s eligible pay. Additionally, with respect to such employees, Exelon may make an annual variable company match of up to 3% of eligible pay contributed per pay period by the employee, based on specified performance goals established by the Talent Management and Compensation Committee of Exelon’s Board of Directors (the “Committee”). Combined, the total employer match (fixed and variable) is an annual maximum of up to 6% of a participant’s eligible pay. Any variable company match will be contributed to the Plan after the end of each calendar year. The 2025 variable company match contributed in 2026 was $19,515,242. The 2024 variable company match contributed in 2025 was $17,602,000. Generally, a participant must be employed on the last day of a calendar year to receive the variable company match for that year. In the event a participant terminates employment during the calendar year due to death, long-term disability or retirement (age 50 and completion of 10 years of service with the Company) or in the event a participant terminates employment with the Company and receives benefits under the severance plan, the participant will be eligible to receive a variable company match.

With respect to non-represented, non-exempt craft and clerical employees assigned to Philadelphia Electric Company, Exelon provides a fixed company match of 100% of the first 5% of a participant’s eligible pay contributed per pay period.

With respect to non-represented, non-craft employees hired or rehired on or after February 1, 2018 by non-utility related employers and January 1, 2021 by utility-related employers, who are not eligible to participate in the Exelon Corporation Cash Balance Pension Plan under the Exelon Corporation Retirement Program, the Company provides an additional automatic company contribution of 4% of eligible pay. Any automatic company contribution will be contributed to the Plan

after the end of each calendar year based on eligible pay determined as of the last day of the applicable plan year.

For represented employees, fixed company matching contributions, variable company match (if applicable), and automatic company contributions (if applicable), vary based on the applicable collective bargaining agreement.

Investment Options

The Plan’s investments are held in the Master Trust, which was established in 2006, for the investments of the Plan and other savings plans sponsored by Exelon. The Plan's investments are fully participant-directed, and the Plan is intended to satisfy Section 404(c) of ERISA.

The investment options include a menu of funds that include twelve custom Target Date Fund options, three actively-managed custom funds, nineteen passively-managed funds, the Northern Trust U.S. Government Short-Term Investment Fund and the Exelon Corporation Stock Fund. Below is a brief description of each of the investment options available as of December 31, 2025 and 2024. These descriptions are not, and are not intended to be, complete descriptions of each investment option’s risk, objective and strategy.

Target Date Funds - Diversified funds managed by multiple investment managers that seek to provide investment return, shifting from an emphasis on capital appreciation to an emphasis on income and inflation protection as the fund approaches and passes its target retirement age. Target allocations of the funds are designed using certain assumptions, including that most Exelon plan participants receive a 401(k) company matching contribution under the Plan, either earn pension benefits over their careers or receive additional employer 401(k) contributions in lieu of pension benefits, and typically begin receiving retirement benefits around age 65. The funds reduce exposure to equity and real estate, and increase exposure to fixed income and certain other investments, as the target retirement date approaches, and for ten years thereafter.

Actively-managed custom funds - These funds use a multi-manager approach whereby the fund’s assets are allocated to several investment managers that act independently of each other and follow their own distinct investment style in investing in securities. The portfolios are principally managed using an active approach with the objective of collectively exceeding the record of the fund benchmark while maintaining an acceptable risk profile.

Passively-managed funds - These funds seek investment results that correspond generally to the price and yield performance, before fees and expenses, of a particular index.

Northern Trust U.S. Government Short-Term Investment Fund - This fund is an investment vehicle for cash reserves that offers a rate of return based on a portfolio of obligations of the U.S. Government, its agencies or instrumentalities, and related money market instruments. Principal preservation and liquidity management are the fund’s primary objectives.

Exelon Corporation Stock Fund - This fund primarily invests in Exelon common stock with some short-term liquid investments. The Exelon Corporation Stock Fund does not represent direct ownership of Exelon common stock. The fund's unit value is determined by dividing the total current fair value of the investments in the fund by the total number of units owned. This fund is intended to generally track the performance of Exelon Corporation's publicly traded stock, net of fees and expenses and taking into account liquidity needs.

Notes Receivable from Participants

A participant may, upon application, borrow from the Plan. Only one loan is permitted to a participant in any calendar year with a maximum of three loans outstanding at any time (except as

otherwise provided in the Plan document), and the amount of any loan shall not be less than $1,000. The aggregate amount of all outstanding loans may not exceed the lesser of (i) 50% of a participant’s vested balance in the Plan or (ii) $50,000 minus the excess of the highest outstanding balance of all loans from the Plan to the participant during the previous 12-month period over the outstanding balance of all loans from the Plan to the participant on the day the loan is made. For loans other than home loans, the maximum term is five years. For a home loan, the maximum term is fifteen years and the minimum is five years. The interest rate on all loans is the prime rate for commercial loans plus 1%. Principal and interest is paid ratably through monthly payroll deductions or direct payment, as applicable. No lump-sum or installment distribution from the Plan will be made to a participant who has received a loan, or to a beneficiary of any such participant, until the loan, including interest, has been repaid out of the funds otherwise distributable. In the event a participant defaults on the repayment of a loan, the loan will be considered a taxable distribution of the participant’s account and may be subject to an early withdrawal penalty.

Withdrawals by Participants While Employed

Generally, a participant may withdraw up to the entire balance of his or her after-tax contributions account once each calendar year. After making such a withdrawal, the participant must wait six months before making a new election to resume after-tax contributions to the Plan if the distribution is received by the participant before attainment of age 59½. A participant may also withdraw up to an amount equal to the balance in his or her rollover account.

Generally, a participant may make withdrawals from his or her before-tax, catch-up, matching, Roth, Roth catch-up and Roth rollover contributions accounts, but only if the participant has attained age 59½ or, prior to that age, only in an amount required to alleviate financial hardship as defined in the Code and regulations promulgated thereunder. Financial hardship withdrawals from a before-tax contributions account suspend the participant’s right to make contributions to the Plan for six months.

While any loan to the participant remains outstanding, the maximum amount available for withdrawal shall be the balance in such account less the balance of all outstanding loans.

Distributions upon Termination of Employment

Upon termination of employment, including the retirement, total disability or death of a participant, a participant is entitled to the distribution of his or her entire account balance. Such distribution will be made, as elected by the participant, in the form of either a single lump-sum payment, an ad hoc partial distribution, or in substantially equal annual, quarterly or monthly installments over any period of time specified by the participant, subject to meeting any restrictions required by applicable law, including but not limited to the minimum distribution requirements under the Code. If a participant elects installment payments, the participant can elect to change the amount, frequency and number of payments. A participant also may elect ad hoc partial withdrawals. A participant may elect to defer distributions until their Required Beginning Date. If the value of a participant’s account is $1,000 or less, the participant will receive a lump sum distribution from the Plan upon termination of employment. If the value of a participant’s account is greater than $1,000, the participant can leave his or her account in the Plan. Generally, distributions will be taxed as ordinary income in the year withdrawn and may also be subject to an early withdrawal penalty if taken before age 59½, unless eligible rollover distributions are rolled over to another qualified plan or an Individual Retirement Account (“IRA”). A 20% mandatory federal income tax withholding applies to withdrawals that are eligible for rollover, but which are not directly rolled over to another qualified plan or an IRA. If a participant does not specify the form of payment and timing of the participant’s distribution, the benefit generally will be paid in installments beginning no later than April 1 of the calendar year following the calendar year in which the participant attains age 73, if the participant was born on or after January 1, 1951 and before January 1, 1960, or age 75 if the participant was born after 1959. If the participant was born before July 1, 1949, they were required to begin distributions

upon attainment of age 70½ and if the participant was born on or after July 1, 1949 and before January 1, 1951, they were required to begin distributions upon attainment of age 72.

Participant Accounts

Each participant’s account is credited with the participant’s contribution and allocations of (i) the Company’s corresponding contributions and (ii) account earnings and losses, and charged with an allocation of administrative fees and expenses. Allocations are based on participant elections or account balances, as applicable. The benefit to which a participant is entitled is the benefit that can be provided from the participant’s vested account.

Vesting of Participants’ Accounts

Participants are fully vested in their accounts at all times.

Investment Income

Dividends and earnings received on all funds, with the potential exception of the Exelon Corporation Stock Fund, are automatically reinvested in the fund to which those earnings apply.

Employee Stock Ownership Plan

If a participant invests any portion of his or her account in the Exelon Corporation Stock Fund and is eligible to receive dividend distributions from the Plan, then the participant is deemed to have elected to have the dividends reinvested in the Exelon Corporation Stock Fund. If the participant prefers to receive any such dividends in cash, he or she can so elect by contacting the Recordkeeper. Dividends distributed to the participant in cash from the Plan are subject to income tax as a dividend and not subject to an early withdrawal penalty.

EBP, Plan Termination

Plan Termination

The Plan may be amended, modified or terminated by Exelon at any time. The Plan may also be terminated if the IRS disqualifies the Plan. Termination of the Plan with respect to a participating employer may occur if there is no successor employer in the event of dissolution, merger, consolidation or reorganization of such employer company. In the event of full or partial termination of the Plan, assets of affected participants of the terminating employer or employers shall remain 100% vested and distributable at fair market value in the form of cash, securities or annuity contracts, in accordance with the provisions of the Plan.

EBP, Summary of Accounting Policy

Summary of Significant Accounting Policies

General

The Plan follows the accrual method of accounting, in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Withdrawals and distributions are recorded when paid.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires the Plan Administrator to make estimates and assumptions that affect the reported amounts of assets, liabilities, and changes therein, and disclosure of contingent assets and liabilities. Accordingly, actual results may differ from those estimates.

Investment Valuation and Income Recognition

The Plan’s interest in the Master Trust is stated at fair value. Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. The Plan presents, in the Statement of Changes in Net Assets Available for Benefits, the Plan interest in investment income from the Master Trust. See Note 3 — Fair Value of Interest in Master Trust for further information.

Plan Expenses

A participant’s account balance will be charged with certain fees and expenses. Asset-based fees (e.g., management fees and other fund operating expenses) are used to cover the expenses related to running an investment fund, and are generally deducted directly from a participant’s investment returns. The asset-based fees relating to the target date and actively-managed custom funds are primarily presented within the investment and administrative fees of the Master Trust. See Note 3 — Fair Value of Interest in Master Trust for further information.

Plan administration fees, which may include certain direct expenses, cover the day-to-day expenses of administering the Plan and are covered by amounts deducted directly from participant accounts. Transaction-based fees also may be charged with respect to optional features offered under the Plan (e.g., loans) and are charged directly against a participant’s account balance.

Notes Receivable from Participants

Notes receivable from participants are valued at their unpaid principal balance plus accrued interest. No allowance for credit losses has been recorded as of December 31, 2025 or 2024.

EBP, Investment, Fair Value and NAV

3.Fair Value of Interest in Master Trust

The Plan established a Master Trust Agreement with the Trustee for the purpose of investing assets of the Plan and other savings plans sponsored by Exelon. As of February 1, 2022, the date of the consummation of the Separation, the Plan is the only participating plan within the Master Trust. Effective January 1, 2016, the Exelon Corporation Stock Fund was offered in Plan. The Master Trust is comprised of two master trust investment accounts (“MTIA”), one of which contains primarily real estate investments (“MTIA B”) and another for the remaining other investments (“MTIA A”). The real estate account within the Master Trust is comprised primarily of real estate assets that do not have an observable value (either directly or indirectly) on an established market, and therefore, is being reported separately for Form 5500 purposes. Interest and dividends along with net depreciation or appreciation in the fair value of investments are allocated to the Plan on a daily basis based upon the Plan’s equitable share of the various investment funds and portfolios that comprise the Master Trust. The Plan’s Statements of Net Assets Available for Benefits include its share of investments maintained in the Master Trust measured at fair value on a recurring basis.

The net assets of the Master Trust and Plan interest in the Master Trust as of December 31, 2025 and 2024 were as follows:


		December 31, 2025
		MTIA A		MTIA B		Total Master Trust		Total Plan Interest in Master Trust
ASSETS
Investments, at fair value
	Interest-bearing cash	$	306,156,330	$	14,752	$	306,171,082	$	306,171,082
	U.S. government securities	253,471,722		—		253,471,722		253,471,722
	Corporate debt instruments - preferred	4,356,641		—		4,356,641		4,356,641
	Corporate debt instruments - other	126,533,016		—		126,533,016		126,533,016
	Corporate stock - preferred	725,891		—		725,891		725,891
	Corporate stock - common	1,395,229,124		—		1,395,229,124		1,395,229,124
	Corporate stock - Exelon Corporation (1)	176,791,058		—		176,791,058		176,791,058
	Real estate	—		141,952,608		141,952,608		141,952,608
	Common/collective trust funds	3,883,709,899		446,405		3,884,156,304		3,884,156,304
	Registered investment company securities	583,300,903		36,535,220		619,836,123		619,836,123
	Other investments	44,257,502		—		44,257,502		44,257,502
	Total Master Trust investments	6,774,532,086		178,948,985		6,953,481,071		6,953,481,071

Other Assets
	Cash	7,090,208		—		7,090,208		7,090,208
	Accrued dividend and interest	9,458,952		—		9,458,952		9,458,952
	Due from brokers for securities sold	51,267,778		—		51,267,778		51,267,778
	Pending foreign exchange purchases receivable	29,401,017		—		29,401,017		29,401,017
	Other	12,321		—		12,321		12,321
	Total other assets	97,230,276		—		97,230,276		97,230,276

Total Master Trust assets		6,871,762,362		178,948,985		7,050,711,347		7,050,711,347

LIABILITIES
	Accrued investment and administrative expenses	7,567,787		399,770		7,967,557		7,967,557
	Due to broker for securities purchased	111,375,245		—		111,375,245		111,375,245
	Pending foreign exchange purchases payable	29,540,849				29,540,849		29,540,849
	Other liabilities	2,411,194		—		2,411,194		2,411,194
Total Master Trust liabilities		150,895,075		399,770		151,294,845		151,294,845

Total Master Trust net assets		$	6,720,867,287	$	178,549,215	$	6,899,416,502	$	6,899,416,502


		December 31, 2024
		MTIA A		MTIA B		Total Master Trust		Total Plan Interest in Master Trust
ASSETS
Investments, at fair value
	Interest-bearing cash	$	342,526,014	$	—	$	342,526,014	$	342,526,014
	U.S. government securities	349,560,986		—		349,560,986		349,560,986
	Corporate debt instruments - preferred	4,990,685		—		4,990,685		4,990,685
	Corporate debt instruments - other	284,116,861		—		284,116,861		284,116,861
	Corporate stock - preferred	488,699		—		488,699		488,699
	Corporate stock - common	1,134,437,845		—		1,134,437,845		1,134,437,845
	Corporate stock - Exelon Corporation (1)	159,452,563		—		159,452,563		159,452,563
	Real estate	—		127,771,096		127,771,096		127,771,096
	Common/collective trust funds	3,407,875,578		399,184		3,408,274,762		3,408,274,762
	Registered investment company securities	322,769,814		31,581,348		354,351,162		354,351,162
	Other investments	34,828,999		—		34,828,999		34,828,999
	Total Master Trust investments	6,041,048,044		159,751,628		6,200,799,672		6,200,799,672

Other Assets
	Cash	401,847		—		401,847		401,847
	Accrued dividend and interest	11,202,779		—		11,202,779		11,202,779
	Due from brokers for securities sold	58,425,567		—		58,425,567		58,425,567
	Pending foreign exchange purchase receivable	13,809,175		—		13,809,175		13,809,175
	Other	3,758		—		3,758		3,758
	Total other assets	83,843,126		—		83,843,126		83,843,126

Total Master Trust assets		6,124,891,170		159,751,628		6,284,642,798		6,284,642,798

LIABILITIES
	Accrued investment and administrative expenses	7,704,774		665,738		8,370,512		8,370,512
	Due to broker for securities purchased	107,597,618		—		107,597,618		107,597,618
	Pending foreign exchange purchase payables	13,633,156		—		13,633,156		13,633,156
	Other liabilities	3,628,484		—		3,628,484		3,628,484
Total Master Trust liabilities		132,564,032		665,738		133,229,770		133,229,770

Total Master Trust net assets		$	5,992,327,138	$	159,085,890	$	6,151,413,028	$	6,151,413,028

(1) The Exelon Corporation Stock Fund held $177 million and $159 million of this investment as of December 31, 2025 and 2024, respectively. The actively-managed custom funds did not hold this investment as of December 31, 2025 or as of December 31, 2024.

The net investment income of the Master Trust and Plan interest in the Master Trust for the year ended December 31, 2025 was as follows:


	Year Ended December 31, 2025
	MTIA A		MTIA B		Total Master Trust		Plan Interest in Total
Corporate stock dividends	$	27,493,456	$	—	$	27,493,456	$	27,493,456
Other interest and dividends	37,971,988		1,272,737		39,244,725		39,244,725

Net appreciation in the fair value of investments	904,946,698		7,020,872		911,967,570		911,967,570

Total net investment income	970,412,142		8,293,609		978,705,751		978,705,751

Investment and administrative expenses not directly allocated to the plans	(8,370,894)		(743,566)		(9,114,460)		(9,114,460)

Total Master Trust net investment income	$	962,041,248	$	7,550,043	$	969,591,291	$	969,591,291

Recurring Fair Value Measurements

To increase consistency and comparability in fair value measurements, the FASB established a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows:

•Level 1 - unadjusted quoted prices in active markets for identical assets for which the Plan has the ability to access as of the reporting date.

•Level 2 - inputs other than quoted prices included within Level 1 that are directly observable for the asset or indirectly observable through corroboration with observable market data.

•Level 3 - unobservable inputs, such as internally-developed pricing models for the asset. The Plan does not have any financial assets utilizing Level 3 inputs.

The valuation methods for each investment category are described below.

Interest-bearing cash. Investments with original maturities of three months or less when purchased, including certain short-term fixed income securities and money market funds, are considered interest-bearing cash. The fair values are based on observable market prices and, therefore, have been categorized in Level 1 in the fair value hierarchy.

U.S. government securities. U.S. government securities are valued daily based on quoted prices in active markets. Investments in U.S. Treasury securities have been categorized in Level 1 because they trade in highly liquid and transparent markets. Investments in U.S. government affiliates are based on evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences and are categorized as Level 2.

Preferred and other corporate debt instruments. Corporate debt instruments are based on evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences and are categorized as Level 2.

Preferred, common corporate stock and Exelon Corporation stock. The Master Trust’s stock investments are primarily traded on exchanges that contain only actively traded securities, due to the volume trading requirements imposed by these exchanges. Preferred and common corporate stocks, including Exelon Corporation stock, rights and warrants, are valued daily based on quoted prices in active markets and are categorized as Level 1.

Real estate. Income producing real estate funds are held in a separate account with liquid securities and are valued by the fund managers on a periodic basis. Fund values are based on valuation of the underlying investments which may include inputs such as operating results, discounted future cash flows and market-based comparable data. The valuation inputs are unobservable. Certain real estate investments are redeemable from the investment vehicle quarterly, with 30 days of notice and may be subject to certain restrictions. The fair value is determined using net asset value (NAV) or its equivalent as a practical expedient and are not classified within the fair value hierarchy.

Common/collective trust funds. Common/collective trust funds are maintained by investment companies and hold investments in accordance with a stated set of fund objectives. The common/collective trust funds typically include assets such as publicly traded equity and fixed income securities. For common/collective trust funds which are not publicly quoted, the funds are valued using the NAV per fund share as a practical expedient, which is primarily derived from the quoted prices in active markets of the underlying securities, and are not classified within the fair value hierarchy. Common/collective trust funds can be redeemed monthly or more frequently, with 3 or less days of notice.

Registered investment company securities. Registered investment company securities are investment funds maintained by investment companies that hold investments in accordance with a stated set of fund objectives. For funds with values that are publicly quoted on a daily basis in active markets, the funds have been categorized as Level 1. For funds with values which are not publicly quoted, the funds are valued using the NAV per fund share as a practical expedient, which is primarily derived from the quoted prices in active markets of the underlying securities, and are not classified within the fair value hierarchy. The registered investment company securities can be redeemed daily.

Other investments. Other investments may include futures contracts, swap contracts, holdings in real estate investment trusts, and state, municipal and foreign government fixed income securities. Futures contracts are valued daily based on quoted prices in active markets and trade in open markets, and have been categorized as Level 1. Real estate investment trusts are valued daily based on quoted prices in active markets and have been categorized as Level 1. State, municipal and foreign government fixed income securities are valued daily using evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences, and are categorized as Level 2. Derivative instruments other than futures contracts are valued based on external price data of comparable securities and have been categorized as Level 2.

The following tables present assets measured and recorded at fair value on the Plan’s Statement of Net Assets Available for Benefits and in the Master Trust’s net assets on a recurring basis and their level within fair value hierarchy as of December 31, 2025 and 2024.


As of December 31, 2025
	Level 1		Level 2		Not Subject to Leveling		Total
Master Trust Investments:

Interest-bearing cash	$	306,171,082	$	—	$	—	$	306,171,082
U.S. government securities	130,066,016		123,405,706		—		253,471,722
Corporate debt instruments - preferred	—		4,356,641		—		4,356,641
Corporate debt instruments - other	—		126,533,016		—		126,533,016
Corporate stock - preferred	725,891		—		—		725,891
Corporate stock - common	1,395,229,124		—		—		1,395,229,124
Corporate stock - Exelon Corporation	176,791,058		—		—		176,791,058
Real estate	—		—		141,952,608		141,952,608
Common/collective trust funds	—		—		3,884,156,304		3,884,156,304
Registered investment company securities	140,439,555		—		479,396,568		619,836,123
Other investments	25,509,630		18,747,872		—		44,257,502
Total Master Trust investments	$	2,174,932,356	$	273,043,235	$	4,505,505,480	$	6,953,481,071


As of December 31, 2024
	Level 1		Level 2		Not Subject to Leveling		Total
Master Trust Investments:

Interest-bearing cash	$	342,526,014	$	—	$	—	$	342,526,014
U.S. government securities	202,930,386		146,630,600		—		349,560,986
Corporate debt instruments - preferred	—		4,990,685		—		4,990,685
Corporate debt instruments - other	—		284,116,861		—		284,116,861
Corporate stock - preferred	488,699		—		—		488,699
Corporate stock - common	1,134,437,845		—		—		1,134,437,845
Corporate stock - Exelon Corporation	159,452,563		—		—		159,452,563
Real estate	—		—		127,771,096		127,771,096
Common/collective trust funds	—		—		3,408,274,762		3,408,274,762
Registered investment company securities	122,200,382		—		232,150,780		354,351,162
Other investments	20,739,655		14,089,344		—		34,828,999
Total Master Trust investments	$	1,982,775,544	$	449,827,490	$	3,768,196,638	$	6,200,799,672

EBP, Risk and Uncertainty

Risks and Uncertainties

The Plan provides for various investment options in several investment securities and instruments. Investment securities are exposed to various risks, such as interest, market and credit risk. Due to the level of risks associated with certain investment securities and the level of uncertainty related to changes in the value of investment securities, it is at least reasonably possible that changes in values in the near term could materially affect participants’ account balances and the amounts reported in the Statements of Net Assets Available for Benefits and the Statement of Changes in Net Assets Available for Benefits.

From time to time, investment managers may use derivative financial instruments including futures, forward foreign exchange, and swap contracts. Derivative instruments may be used to mitigate exposure to foreign exchange rate and interest rate fluctuations as well as manage the investment mix in the portfolio. The Plan’s exposure is limited to the fund(s) utilizing such derivative investments. Risks of entering into derivatives include the risk of an illiquid market, inability of a counterparty to perform, or unfavorable movement in foreign currency exchange rates, interest rates, or the underlying securities.

Some investment managers may engage in securities lending programs in which the funds lend securities to borrowers, with the objective of generating additional income. The borrowers of fund securities deliver collateral to secure each loan in the form of cash, securities, or letters of credit, and are required to maintain the collateral at a level no less than 100% of the market value of the loaned securities. Cash collateral is invested in common/collective trust funds or collateral pools. Participation in securities lending programs involves exposure to the risk that the borrower may default and there may be insufficient collateral to buy back the security. Lenders of securities also face the risk that invested cash collateral may become impaired or that the interest paid on loans may exceed the amount earned on the invested collateral. The Plan’s exposure is limited to the funds that lend securities.

EBP, Tax Status

Income Tax Status

The Plan obtained its latest determination letter on May 25, 2017 in which the IRS stated that the Plan, as then designed, was in compliance with the applicable requirements of the Code. The Plan is qualified under Section 401(a) and 401(k) of the Code. The Plan has been amended since receiving the determination letter. However, the Plan Administrator believes that the Plan design remains in compliance with the applicable requirements of the Code. Therefore, it is believed that the Plan was qualified and the related Master Trust was tax-exempt as of the financial statement date.

GAAP requires plan management to evaluate tax positions taken by the Plan and recognize a tax liability (or asset) if the Plan has taken an uncertain position that more likely than not would not be sustained upon examination by the applicable authorities. The Company has analyzed the tax positions taken by the Plan and has concluded that as of December 31, 2025, there were no uncertain tax positions taken. The Plan is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress.

Related Party Transactions

Investment options in the Plan include common/collective trust funds managed by the Trustee or its affiliates. The Master Trust also holds shares of Exelon Corporation common stock. These transactions qualify as exempt party-in-interest transactions, in accordance with ERISA. There have been no known prohibited transactions with a party-in-interest.

EBP, Plan Transfers

Plan Transfers

There was no transfer activity for the year ending December 31, 2025.

EBP, Subsequent Event

Subsequent EventsEffective January 1, 2026, participants do not have to make a separate election for catch-up contributions. This means that once the annual IRS contribution limit is reached, any additional contributions will automatically be treated as catch-up contributions (if otherwise eligible). Under federal law, these catch-up contributions will be treated as Roth contributions if the participant’s earnings with the Company for the prior calendar year exceeded $150,000 (with annual indexation). Effective January 1, 2026, matching contributions (both fixed and variable) will be made on catch-up contributions, subject to Plan limits.

Employee Benefit Plan, Statement of Change in Net Asset Available for Benefit (Statement) - EBP 001	12 Months Ended
	Dec. 31, 2025 USD ($)
Contributions
Participant	$ 246,047,839
Employer fixed company match	81,321,620
Employer automatic company contribution	23,452,704
Employer variable company match	19,515,242
Rollover receipts	16,711,908
Total contributions	387,049,313
Plan interest in the net investment income from the Exelon Corporation Defined Contribution Retirement Plans Master Trust	969,591,291
Interest income from notes receivable from participants	11,288,562
Total investment income	980,879,853
Total additions	1,367,929,166
Participant withdrawals and distributions	601,338,413
Administrative expenses	5,276,320
Total deductions	606,614,733
Net increase	761,314,433
Beginning of year	6,312,088,518
End of year	$ 7,073,402,951

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Reports Cover Statements Employee Benefit Plan, Statement of Net Asset Available for Benefit (Statement) Employee Benefit Plan, Statement of Change in Net Asset Available for Benefit (Statement) Reports Employee Benefit Plan, Comprehensive Text Block Uncategorized Uncategorized Items - exc-20251231_htm.xml All Reports