Form 3 - Initial statement of beneficial ownership of securities

1 SL1 300093v1/03067.001 LIMITED POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints each of Matthew C. Tomb, Executive Vice President, General Counsel and Secretary, and James R. Reske, Executive Vice President and Chief Financial Officer, signing individually, the undersigned's true and lawful attorney-in-fact to: (1) execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of First Commonwealth Financial Corporation (the "Company"), Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder, as they may be amended from time to time; (2) do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5 and timely file such Form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and (3) take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Limited Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion. The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Limited Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934 and the rules thereunder, as they may be amended from time to time. The undersigned hereby authorizes each such attorney-in-fact to file any original or copy of this Limited Power of Attorney with any institution or person or in any public office, including the United States Securities and Exchange Commission. This Limited Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings of transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

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2 SL1 300093v1/03067.001 Any provision of this Limited Power of Attorney judicially determined to be unenforceable or invalid for any reason shall be entirely disregarded and such determination shall not affect or impair the other provisions hereof. This Limited Power of Attorney shall be construed in accordance with the laws of the State of New York without regard to its conflicts of laws principles. IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney to be executed as of January 1, 2025. /s/ Linda D. Metzmaier Signature Linda D. Metzmaier Print Name

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