Stratum Holdings Corp.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No. )

Stratum Holdings Corp.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

October 27, 2026

Dear Fellow Stockholders:

You are cordially invited to attend the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of Stratum Holdings Corp. (formerly La Rosa Holdings Corp.) (“we,” “us,” “our” or the “Company”) that will be held on Friday, December 11, 2026 at 9:00 a.m. Eastern Time, and any postponement, adjournment or continuation thereof. We will hold the Annual Meeting in a virtual format via live webcast at www.virtualshareholdermeeting.com/SRTM2026.

On or about October 27, 2026, we expect to mail a Notice of Internet Availability of Proxy Materials to our stockholders. The Notice of Internet Availability of Proxy Materials contains instructions on how to access our proxy statement and annual report, how to vote, and how to receive a paper copy of the proxy materials by mail. If you requested to receive printed proxy materials, you may submit your proxy or voting instructions by completing, signing, dating and returning your proxy card or voting instruction form in the envelope provided.

It is important that your shares be represented and voted at the Annual Meeting. Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. You may vote online, by telephone or by mailing a proxy card or voting instruction form. Returning the proxy card or voting instruction form or voting online or by telephone does not deprive you of your right to attend the Annual Meeting virtually and to vote your shares at the Annual Meeting. Voting now will not limit your right to change your vote or to attend the Annual Meeting.

Thank you for your ongoing support.

Sincerely yours,

/s/ Nicholas Adler

Nicholas Adler

Chairman and CEO

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD ON DECEMBER 11, 2026

To the Stockholders of Stratum Holdings Corp. –

NOTICE IS HEREBY GIVEN that the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of Stratum Holdings Corp. (formerly La Rosa Holdings Corp.) (“we,” “us,” “our” or the “Company”) will be held on Friday, December 11, 2026 at 9:00 a.m. Eastern Time. The Annual Meeting will be a virtual stockholder meeting conducted via live webcast at www.virtualshareholdermeeting.com/SRTM2026. The purpose of the Annual Meeting will be the following:

In addition, stockholders may be asked to vote on such other business as may properly come before the Annual Meeting or any adjournment or postponement thereof.

The foregoing items of business are more fully described in the proxy statement accompanying this notice or made available online. The proxy statement provides a detailed description of the business to be conducted at the Annual Meeting and we urge you to read the proxy statement, including the appendices, carefully and in their entirety.

Only stockholders of the Company as of the close of business on October 16, 2026 (the “Record Date”) and their proxies are entitled to notice of, to attend and/or to vote at the Annual Meeting and any postponements, adjournments or continuations thereof.

All stockholders as of the Record Date are cordially invited to attend the Annual Meeting. You are urged to vote even if you sold your shares after the Record Date. You may vote online, by telephone or by mailing a proxy card or voting instruction form. Further instructions regarding voting rights and the matters to be voted upon are presented in the accompanying proxy statement.

IT IS IMPORTANT THAT YOUR SHARES BE REPRESENTED AT THE ANNUAL MEETING, REGARDLESS OF WHETHER OR NOT YOU PLAN TO ATTEND THE ANNUAL MEETING. ACCORDINGLY, AFTER READING THE PROXY STATEMENT, PLEASE PROMPTLY SUBMIT YOUR PROXY OR VOTING INSTRUCTIONS BY FOLLOWING THE INSTRUCTIONS PROVIDED. PLEASE NOTE THAT EVEN IF YOU PLAN TO ATTEND THE ANNUAL MEETING, WE RECOMMEND THAT YOU VOTE PRIOR TO THE ANNUAL MEETING TO ENSURE THAT YOUR SHARES WILL BE REPRESENTED.

Regardless of the number of shares that you own, your vote will be important. Thank you for your continued support, interest and investment in the Company.

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE 2026

ANNUAL MEETING TO BE HELD ON DECEMBER 11, 2026.

The proxy statement, the accompanying proxy card, and the annual report are available free of charge at www.proxyvote.com. Information on this website, other than this proxy statement, is not a part of this proxy statement.

Please sign, date and promptly return the proxy card or voting instruction form, or grant a proxy and give voting instructions online or by telephone, so that you may be represented at the Annual Meeting. Instructions are on the Notice of Internet Availability of Proxy Materials, your proxy card or on the voting instruction form provided by your bank, broker, or other nominee.

PROXY STATEMENT

The board of directors of Stratum Holdings Corp. (formerly La Rosa Holdings Corp.) (“we,” “us,” “our” or the “Company”) is soliciting proxies to be used at our 2026 Annual Meeting of Stockholders to be held solely via live webcast on Friday, December 11, 2026 at 9:00 a.m. Eastern Time and for any postponement, adjournment or continuation thereof (the “Annual Meeting”). To access the live webcast, go to www.virtualshareholdermeeting.com/SRTM2026.

On or about October 27, 2026, we expect to mail a Notice of Internet Availability of Proxy Materials (the “Notice”) to our stockholders of record as of October 16, 2026 (the “Record Date”) containing instructions on how to access our proxy statement and our Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (the “Annual Report”), how to vote, and how to receive a paper copy of the proxy materials by mail. The Annual Report is also available on our website, located at www.stratumholdingscorp.com, under the link for “Financial Filings.” Website references throughout this proxy statement are provided for convenience only, and the content on the referenced websites is not incorporated by reference into this proxy statement.

This proxy statement summarizes information about the proposals to be considered at the Annual Meeting and other information you may find useful in determining how to vote.

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