MARZETTI CO

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PROXY STATEMENT

General Information

This Proxy Statement is furnished to the shareholders of The Marzetti Company, formerly known as Lancaster Colony Corporation, (the “Corporation”) in connection with the solicitation by the Board of Directors of the Corporation (the “Board”) of proxies to be used in voting at the Annual Meeting of Shareholders, which will be held exclusively online at www.virtualshareholdermeeting.com/MZTI2025 at 1:00 p.m. Eastern Standard Time on November 19, 2025, or any adjournment or postponement thereof (the “Annual Meeting”). The proposals referenced on the enclosed proxy card are described in this Proxy Statement. This Proxy Statement and enclosed proxy card are first being mailed to shareholders on or about October 20, 2025.

By signing and returning the enclosed proxy card to the Corporation prior to the Annual Meeting, or by voting electronically or by telephone in a timely manner, a shareholder authorizes the Board, through its designees, to represent and vote that shareholder’s shares at the Annual Meeting in accordance with the shareholder’s instructions. The authorized designees of the Corporation may vote those shares to adjourn the meeting and will be authorized to vote those shares at any postponements or adjournments of the meeting. A shareholder’s proxy may be revoked at any time before the vote at the Annual Meeting. To be effective, any revocation must be communicated to the Secretary or Assistant Secretary of the Corporation prior to the vote at the Annual Meeting. The mere attendance of a shareholder at the Annual Meeting will not revoke that shareholder’s proxy unless specific notice of revocation is given to the Secretary or Assistant Secretary of the Corporation.

The Corporation will bear the cost of soliciting proxies, including any charges and expenses of brokerage firms and others for forwarding solicitation material to the beneficial owners of the Corporation’s shares. Proxies may be solicited by personal interview, mail, telephone and electronic communications through the efforts of employees of the Corporation.

By action of the Board, only the Corporation’s shareholders of record at the close of business on September 22, 2025 are entitled to receive notice of and vote at the Annual Meeting or any adjournments or postponements thereof. As of September 22, 2025, the Corporation had outstanding 27,547,758 common shares without par value (“Common Stock”), with each such share of Common Stock entitling its holder to one vote. The Corporation has no other class of stock outstanding.

A majority of the outstanding shares of Common Stock of the Corporation must be represented at the meeting, whether directly or by proxy, to constitute a quorum for the transaction of business at the Annual Meeting. Proxies reflecting abstentions and broker non-votes are counted for purposes of determining the presence or absence of a quorum. Broker non-votes occur when brokers holding their customers’ shares in “street name” sign and submit proxies for those shares but fail to vote on some matters.

Beneficial owners of shares held in “street name” should receive voting instructions from their broker, bank or nominee, as the record holder of the shares, to direct the record holder on how to vote such shares.

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Voting Requirements

The election of the director nominees requires the favorable vote of a plurality of all votes cast by the holders of the Common Stock at a meeting at which a quorum is present. Broker non-votes and proxies marked “Withhold” will have no effect on the election of the director nominees. Any director nominee who receives more “Withhold” votes than “For” votes in an uncontested election such as this election is expected to tender his or her resignation for consideration by both the Nominating and Governance Committee and the Board pursuant to the Board’s policy summarized herein under “Corporate Governance – Majority Voting Policy in Uncontested Elections.”

The approval of The Marzetti Company 2025 Omnibus Incentive Plan requires the favorable vote of a majority of all votes cast by the shareholders of Common Stock at a meeting at which a quorum is present. Broker non-votes and abstentions will have no effect on the outcome of this proposal.

The non-binding approval of the compensation of our named executive officers (“NEOs”) and the ratification of the Corporation’s independent registered public accounting firm for the year ending June 30, 2026 require the affirmative vote of a majority of outstanding shares by the holders of the Common Stock at a meeting at which a quorum is present. Broker non-votes and abstentions will have the effect of a vote “Against” these proposals.