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Important Information Additional Information and Where to Find It This Presentation relates to the proposed merger and certain related matters (the “Proposals”). In connection with the Proposals, PTMN will file with the SEC and mail to its and LRFC’s respective shareholders a combined joint proxy statement for PTMN and LRFC and a prospectus of PTMN (the “Registration Statement”). The Registration Statement will each contain important information about PTMN, LRFC and the Proposals. This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended. SHAREHOLDERS OF PTMN AND LRFC ARE URGED TO READ THE REGISTRATION STATEMENT, AND OTHER DOCUMENTS THAT ARE FILED OR WILL BE FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THESE DOCUMENTS, CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT PTMN, LRFC AND THE PROPOSALS. Investors and security holders will be able to obtain the documents filed with the SEC free of charge at the SEC’s website, http://www.sec.gov or, for documents filed by PTMN, from PTMN’s website at https://www.portmanridge.com, and, for documents filed by LRFC, from LRFC’s website at https://www.loganridgefinance.com.. Participants in the Solicitation PTMN, its directors, certain of its executive officers and certain employees and officers of Sierra Crest and its affiliates may be deemed to be participants in the solicitation of proxies in connection with the Proposals. Information about the directors and executive officers of PTMN is set forth in its proxy statement for its 2024 Annual Meeting of Stockholders, which was filed with the SEC on April 29, 2024. LRFC, its directors, certain of its executive officers and certain employees and officers of Mount Logan and its affiliates may be deemed to be participants in the solicitation of proxies in connection with the Proposals. Information about the directors and executive officers of LRFC is set forth in the proxy statement for its 2024 Annual Meeting of Stockholders, which was filed with the SEC on April 29, 2024. Information regarding the persons who may, under the rules of the SEC, be considered participants in the solicitation of the PTMN and LRFC shareholders in connection with the Proposals will be contained in the Registration Statement, including the Joint Proxy Statement included therein, and other relevant materials when such documents become available. These documents may be obtained free of charge from the sources indicated above. No Offer or Solicitation This Presentation is not, and under no circumstances is it to be construed as, a prospectus or an advertisement and the communication of this document is not, and under no circumstances is it to be construed as, an offer to sell or a solicitation of an offer to purchase any securities in PTMN, LRFC or in any fund or other investment vehicle managed by BC Partners or any of its affiliates. Other Important Information All information and statements are stated as of [January 30], 2025 unless, in each case, otherwise indicated. Under no circumstances should a recipient of this Presentation assume that such information has been compiled as of any time subsequent to such date. Certain information contained in this Presentation may have been obtained from published sources prepared by other parties. Such information is believed to be reliable but has not been independently verified or audited. None of Sierra Crest, Mount Logan, PTMN, LRFC, any of the other BC Partners entities, any of their associates or any of their respective directors, officers, employees, partners, members, agents, professional advisers, representatives or consultants (the “BC Partners Parties”): (i) makes any representation, warranty or guarantee, express or implied, as to the fairness, accuracy, completeness, reliability, reasonableness or currency of the information contained in this Presentation; or (ii) undertakes to provide any additional information or updates, or to correct any information or statements (including, but not limited to, forward looking statements), in this Presentation which it becomes aware were incorrect or incomplete at the date of this Presentation, or which subsequently become incorrect or incomplete, due to any subsequent event or as a result of new information, future developments or otherwise. No representative of BC Partners Parties has authority to represent otherwise. To the maximum extent permitted by law, none of the BC Partners Parties will be responsible or liable whatsoever with respect to any use or reliance by any person upon any of the information contained in this Presentation (other than with respect to fraud on the part of such BC Partners Party). For the purposes of this Presentation, references to “BC Partners” mean BC Partners LLP; provided that, where the context requires, such term shall also include reference to the parent company of the BC Partners group, BC Partners Holdings Ltd and that company’s subsidiaries. Any statement referring to management or investment activity conducted by BC Partners is a reference to the actions of the manager of each of BC Partners’ funds acting upon the advice of BC Partners and is not a reference to BC Partners LLP or to any other entity which provides advice to such managers and, in particular, in relation to any fund, is a reference to the actions of Sierra Crest, acting upon the advice of BC Partners. BC Partners LLP is authorized and regulated by the United Kingdom Financial Conduct Authority. Sierra Crest is registered as an investment adviser in the United States of America with the SEC. Investors and security holders should not construe the contents of this Presentation as legal, tax, accounting, investment or other advice. Each investor should make its own inquires and consult its advisors as to PTMN and LRFC and as to legal, tax, financial, and other relevant matters. 3