Pennsylvania 10 South Dearborn Street P.O. Box 805379 Chicago Illinois 60680-5379(800)483-3220 Illinois 10 South Dearborn Street Chicago Illinois 60603-2300(312)394-4321 Pennsylvania P.O. Box 8699 2301 Market Street Philadelphia Pennsylvania 19101-8699(215)841-4000 Cumulative Preferred Security, Series D Maryland 2 Center Plaza 110 West Fayette Street Baltimore Maryland 21201-3708(410)234-5000 Delaware 701 Ninth Street, N.W. Washington District of Columbia 20068-0001(202)872-2000 District of Columbia Virginia 701 Ninth Street, N.W. Washington District of Columbia 20068-0001(202)872-2000 Delaware Virginia 500 North Wakefield Drive Newark Delaware 19702-5440(202)872-2000 New Jersey 500 North Wakefield Drive Newark Delaware 19702-5440(202)872-2000☐☐☐☐☐☐☐☐0001109357 0000022606 0000078100 0000009466 0001135971 0000079732 0000027879 0000008192 False False False False False False False False 0001109357 exc:PecoEnergyCoMember 2024-05-02 2024-05-02 0001109357 exc:DelmarvaPowerandLightCompanyMember 2024-05-02 2024-05-02 0001109357 exc:AtlanticCityElectricCompanyMember 2024-05-02 2024-05-02 0001109357 exc:PepcoHoldingsLLCMember 2024-05-02 2024-05-02 0001109357 exc:CommonwealthEdisonCoMember 2024-05-02 2024-05-02 0001109357 2024-05-02 2024-05-02 0001109357 exc:BaltimoreGasAndElectricCompanyMember 2024-05-02 2024-05-02 0001109357 exc:PotomacElectricPowerCompanyMember 2024-05-02 2024-05-02 0001109357 stpr:DC exc:PotomacElectricPowerCompanyMember 2024-05-02 2024-05-02 0001109357 exc:PotomacElectricPowerCompanyMember stpr:VA 2024-05-02 2024-05-02 0001109357 exc:DelmarvaPowerandLightCompanyMember stpr:DE 2024-05-02 2024-05-02 0001109357 exc:DelmarvaPowerandLightCompanyMember stpr:VA 2024-05-02 2024-05-02

| UNITED STATES SECURITIES AND EXCHANGE COMMISSION |
| Washington, D.C. 20549 |
| FORM | 8-K |
| CURRENT REPORT |
| Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 |
| May 2, 2024 |
| Date of Report (Date of earliest event reported) |

Commission File Number |  | Name of Registrant; State or Other Jurisdiction of Incorporation; Address of Principal Executive Offices; and Telephone Number |  | IRS Employer Identification Number
001-16169 |  | EXELON CORPORATION |  | 23-2990190
|  | (a Pennsylvania corporation) 10 South Dearborn Street P.O. Box 805379 Chicago, Illinois 60680-5379 (800) 483-3220 |  |
001-01839 |  | COMMONWEALTH EDISON COMPANY |  | 36-0938600
|  | (an Illinois corporation) 10 South Dearborn Street Chicago, Illinois 60603-2300 (312) 394-4321 |  |
000-16844 |  | PECO ENERGY COMPANY |  | 23-0970240
|  | (a Pennsylvania corporation) 2301 Market Street P.O. Box 8699 Philadelphia, Pennsylvania 19101-8699 (215) 841-4000 |  |
001-01910 |  | BALTIMORE GAS AND ELECTRIC COMPANY |  | 52-0280210
|  | (a Maryland corporation) 2 Center Plaza 110 West Fayette Street Baltimore, Maryland 21201-3708 (410) 234-5000 |  |
001-31403 |  | PEPCO HOLDINGS LLC |  | 52-2297449
|  | (a Delaware limited liability company) 701 Ninth Street, N.W. Washington, District of Columbia 20068-0001 (202) 872-2000 |  |
001-01072 |  | POTOMAC ELECTRIC POWER COMPANY |  | 53-0127880
|  | (a District of Columbia and Virginia corporation) 701 Ninth Street, N.W. Washington, District of Columbia 20068-0001 (202) 872-2000 |  |
001-01405 |  | DELMARVA POWER & LIGHT COMPANY |  | 51-0084283
|  | (a Delaware and Virginia corporation) 500 North Wakefield Drive Newark, Delaware 19702-5440 (202) 872-2000 |  |
001-03559 |  | ATLANTIC CITY ELECTRIC COMPANY |  | 21-0398280
|  | (a New Jersey corporation) 500 North Wakefield Drive Newark, Delaware 19702-5440 (202) 872-2000 |  |

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:
Title of each class |  | Trading Symbol(s) |  | Name of each exchange on which registered
EXELON CORPORATION: |  |  |  |
Common Stock, without par value |  | EXC |  | The Nasdaq Stock Market LLC
PECO ENERGY COMPANY: |  |  |  |
Trust Receipts of PECO Energy Capital Trust III, each representing a 7.38% Cumulative Preferred Security, Series D, $25 stated value, issued by PECO Energy Capital, L.P. and unconditionally guaranteed by PECO Energy Company |  | N/A |  | N/A

Indicate by check mark whether any of the registrants are emerging growth companies as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if any of the registrants have 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. ☐

Item 2.02. Results of Operations and Financial Condition.
Item 7.01. Regulation FD Disclosure.
On May 2, 2024, Exelon Corporation (Exelon) announced via press release its results for the first quarter ended March 31, 2024. A copy of the press release and related attachments are attached hereto as Exhibit 99.1. Also attached as Exhibit 99.2 to this Current Report on Form 8-K are the presentation slides to be used at the first quarter 2024 earnings conference call. This Form 8-K and the attached exhibits are provided under Items 2.02, 7.01 and 9.01 of Form 8-K and are furnished to, but not filed with, the Securities and Exchange Commission.
Exelon has scheduled the conference call for 9:00 AM CT (10:00 AM ET) on May 2, 2024. Participants who would like to join the call to ask a question may register at the link found on the Investor Relations page of Exelon's website: www.exeloncorp.com. Media representatives are invited to participate on a listen-only basis. The call will be archived and available for replay.
Item 9.01. Financial Statements and Exhibits
(d) Exhibits.

Exhibit No. |  | Description
99.1 |  | Press release and earnings release attachments
99.2 |  | Earnings conference call presentation slides
101 |  | Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.
104 |  | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

* * * * *
This combined Current Report on Form 8-K is being furnished separately by Exelon Corporation, Commonwealth Edison Company, PECO Energy Company, Baltimore Gas and Electric Company, Pepco Holdings LLC, Potomac Electric Power Company, Delmarva Power & Light Company, and Atlantic City Electric Company (Registrants). Information contained herein relating to any individual Registrant has been furnished by such Registrant on its own behalf. No Registrant makes any representation as to information relating to any other Registrant.
This Current Report contains certain forward-looking statements within the meaning of federal securities laws that are subject to risks and uncertainties. Words such as “could,” “may,” “expects,” “anticipates,” “will,” “targets,” “goals,” “projects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “predicts,” “should,” and variations on such words, and similar expressions that reflect our current views with respect to future events and operational, economic, and financial performance, are intended to identify such forward-looking statements.
The factors that could cause actual results to differ materially from the forward-looking statements made by the Registrants include those factors discussed herein as well as the items discussed in (1) the Registrants' 2023 Annual Report on Form 10-K in (a) Part I, ITEM 1A. Risk Factors, (b) Part II, ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part II, ITEM 8. Financial Statements and Supplementary Data: Note 18, Commitments and Contingencies; (2) the Registrants' First Quarter 2024 Quarterly Report on Form 10-Q (to be filed on May 2, 2024) in (a) Part II, ITEM 1A. Risk Factors, (b) Part I, ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and (c) Part I, ITEM 1. Financial Statements: Note 11, Commitments and Contingencies; and (3) other factors discussed in filings with the Securities and Exchange Commission by the Registrants.
Investors are cautioned not to place undue reliance on these forward-looking statements, whether written or oral, which apply only as of the date of this Current Report. None of the Registrants undertakes any obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this Current Report.

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, each Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

| EXELON CORPORATION
| /s/ Jeanne M. Jones
| Jeanne M. Jones
| Executive Vice President and Chief Financial Officer
| COMMONWEALTH EDISON COMPANY
| /s/ Joshua S. Levin
| Joshua S. Levin
| Senior Vice President, Chief Financial Officer and Treasurer
| PECO ENERGY COMPANY
| /s/ Marissa Humphrey
| Marissa Humphrey
| Senior Vice President, Chief Financial Officer and Treasurer
| BALTIMORE GAS AND ELECTRIC COMPANY
| /s/ David M. Vahos
| David M. Vahos
| Senior Vice President, Chief Financial Officer and Treasurer

| PEPCO HOLDINGS LLC
| /s/ Phillip S. Barnett
| Phillip S. Barnett
| Senior Vice President, Chief Financial Officer and Treasurer
| POTOMAC ELECTRIC POWER COMPANY
| /s/ Phillip S. Barnett
| Phillip S. Barnett
| Senior Vice President, Chief Financial Officer and Treasurer
| DELMARVA POWER & LIGHT COMPANY
| /s/ Phillip S. Barnett
| Phillip S. Barnett
| Senior Vice President, Chief Financial Officer and Treasurer
| ATLANTIC CITY ELECTRIC COMPANY
| /s/ Phillip S. Barnett
| Phillip S. Barnett
| Senior Vice President, Chief Financial Officer and Treasurer

May 2, 2024

EXHIBIT INDEX

Exhibit No. |  | Description
99.1 |  | Press release and earnings release attachments
99.2 |  | Earnings conference call presentation slides
101 |  | Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.
104 |  | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)