GreyLion Partners LP (the “Registrant” and, together with its affiliated entities as described below, “GreyLion”), a Delaware limited partnership, and a registered investment adviser, provides investment advisory services to investment funds privately offered to qualified investors in the United States and elsewhere. GreyLion was formed as part of a spin out (the “Spin Out”) from Perella Weinberg Partners Capital Management LP (“PWP”). David Ferguson and Chip Baird (the “Founders”), two of the investment partners of GreyLion, previously served together as the portfolio managers of the Growth Equity Team at PWP. GreyLion’s clients include the private investment funds (the “Funds,” and each, a “Fund”) to which GreyLion or its affiliates provide discretionary investment advisory services. Affiliates of the Registrant serve as the general partners of the Funds (each such entity in such capacity, a “General Partner” and collectively, together with any future affiliated general partner entities, the “General Partners”). Each General Partner is subject to the Advisers Act pursuant to the Registrant’s registration in accordance with SEC guidance. This Brochure also describes the business practices of the General Partners and, as applicable, any management companies or other special purpose entities functioning as “relying advisers” of the Registrant, including GreyLion Advisors III LP. Collectively, these entities operate as a single advisory business referred to as “GreyLion.” The Funds are private equity funds and invest through negotiated transactions in operating entities, generally referred to herein as “portfolio companies.” GreyLion’s investment advisory services to the Funds consist of identifying and evaluating investment opportunities, negotiating the terms of investments, managing and monitoring investments and achieving dispositions for such investments. Although investments are made predominantly in non-public companies, investments in public companies are permitted in certain circumstances. The senior principals or other personnel of GreyLion or its affiliates generally serve on such portfolio companies’ respective boards of directors or otherwise act to influence control over management of portfolio companies in which the Funds have invested. GreyLion’s advisory services to the Funds are detailed in the applicable private placement memoranda or other offering documents (each, a “Memorandum”), investment management agreements, limited partnership or other operating agreements of the Funds (each, a “Partnership Agreement” and, as applicable, together with any relevant Memorandum, the “Governing Documents”) and are further described below under “Methods

of Analysis, Investment Strategies and Risk of Loss.” Investors in the Funds (generally referred to herein as “investors” or “limited partners”) participate in the overall investment program for the applicable Fund, but may be excused from a particular investment due to legal, regulatory or other agreed-upon circumstances pursuant to the relevant Governing Documents. The Funds or the General Partners generally enter into side letters or other similar agreements (“Side Letters”) with certain investors that have the effect of establishing rights under, or altering or supplementing the terms (including economic or other terms) of, the relevant Governing Documents with respect to such investors. Additionally, as permitted by the relevant Governing Documents, GreyLion expects to provide (or agree to provide) investment or co-investment opportunities (including the opportunity to participate in co-invest vehicles) to certain current or prospective investors or other persons, including other sponsors, market participants, finders, consultants, vendors, other service providers and/or third parties, portfolio company management or personnel, and GreyLion’s personnel and/or certain other persons associated with GreyLion (e.g., Senior and Other Advisers (defined below) or a vehicle formed by GreyLion’s principals to co-invest alongside a particular Fund’s transactions). Such co-investments typically involve investment and disposal of interests in the applicable portfolio company at the same time and on the same terms as the Fund making the investment. However, for strategic and other reasons, a co-investor or co-invest vehicle may purchase a portion of an investment from one or more Funds after such Funds have consummated their investment in the portfolio company (also known as a post-closing sell-down or transfer). Where appropriate, and in GreyLion’s sole discretion, GreyLion is authorized to charge interest on the purchase to the co-investor or co-invest vehicle (or otherwise equitably to adjust the purchase price under certain conditions), and to seek reimbursement to the relevant Fund for related costs. However, to the extent any such amounts are not so charged or reimbursed (including charges or reimbursements pursuant to applicable law), they generally will be borne by the relevant Fund. GreyLion Partners GP LLC, a Delaware limited liability company, acts as the general partner of the Registrant. The Registrant is controlled by GreyLion Partners GP LLC, and ultimately by the Founders. GreyLion does not currently participate in any Wrap Fee Programs. As of December 31, 2023, the Registrant managed approximately $2,443,415,466.64 in client assets on a discretionary basis.