Firm Information Diesslin Group (“DG”), Inc. is a registered investment advisor with the Securities and Exchange Commission. DG is a Texas corporation that was founded in 1980 by David H. Diesslin, founder. Our firm is located at 425 Houston Street, Suite 500, Fort Worth, TX 76102 and currently has 12 employees. As of 12/31/2023, our assets under management were $622,966,444 of which $545,264,951 we managed on a discretionary basis and $77,701,493 of non- discretionary assets. DG provides personal, individually-tailored, comprehensive, fee-only financial planning and asset-management services to individuals, closely–held businesses, corporations, charitable organizations, pension and profit sharing plans and others. The term “comprehensive” incorporates, but is not limited to, the following elements: cash flow and net worth statements, cash flow management, tax planning, education planning and funding, non-business risk management, and retirement, charitable and estate planning. However, the planning needs of a particular client may be either more comprehensive or more limited in scope. After in-depth data collection and analysis of the client’s asset and debt position, cash flow, tax position, etc., as determined by the scope of the agreement, DG will assist the client in developing short and/or long term goals and objectives, and a set of options and action plan consistent with the client’s attitudes, philosophy and risk tolerance. If the client so chooses, DG may manage part or all of the client’s investable assets. The management of a client’s portfolio is based upon the client’s objectives, preferences, investment philosophy, risk tolerance and the investment influence of the capital markets and economy. DG will typically create a portfolio of no-load and low load stock and bond mutual funds. DG primarily recommends portfolios consisting of actively managed mutual funds offered through the Schwab or Fidelity platform. DG’s advice is typically limited to these types of investments; further information is provided under Methods of Analysis, Investment Strategies and Risk of Loss. Our Process Introductory Meeting: A client’s relationship with DG typically begins with an Introductory Meeting which is usually a 90-minute meeting in which the firm assists the client in discovering long-term goals (financial and otherwise) and the obstacles that currently stand in the way of achieving them. These insights serve as a guiderail and are implemented throughout our services.
• Initial Financial Planning: Following the Introductory Meeting the client may engage DG for a Financial Planning review.The client will sign an individualized agreement 2 Form ADV, Part 2A describing the scope of the services to be provided and the fee that will be paid for these services.
• Implementaion/ Ongoing Financial Planning & Asset Management: If a client elects to receive ongoing investment management and financial advisory services after the Initial Financial Planning is complete, they will move to the Implementation/ Ongoing Assistance phase.This stage typically includes ongoing investment management and monitoring services including asset allocation and portfolio construction, recommendations concerning a client’s existing individual securities, and planning concerning interest and dividend payments and capital gains, as they relate to retirement, charitable planning, education funding, tax and real estate issues. The firm provides subsequent comprehensive annual financial planning reviews for clients who pay an ongoing financial planning retainer fee and provide the information requested by the firm for the review, and may provide a financial review, the scope of which will be at the firm’s discretion, for any other clients who request it. Our Services Asset Management: At DG our goal is to identify the specific financial requirements of each client and construct a portfolio of appropriate investments designed to meet our client’s unique needs.DG develops an investment policy statement, determines asset allocation and selects investments. DG considers the

client’s individual needs and long-term investment goals, with “long-term” defined as an investment time horizon of 5 years or more. We believe that diversification is essential to reducing portfolio risk. DG also considers the tax implications of investment decisions in an effort to maximize after-tax return. DG periodically reviews the portfolio and reviews performance. Clients are able to impose restrictions on investing in certain securities or types of securities. Retirement Planning: DG’s goal in retirement planning is to help our clients achieve their long- term financial goals with the peace of mind that comes from having third-party guidance. Many variables are considered in the analyses, such as years until retirement, levels of savings until retirement, other sources of income (such as Social Security and pension benefits), expected portfolio return and inflation rate, existing debts and cash needs, and the current value of the client’s portfolio. With this information DG is able to “stress test” the portfolio and vary inputs to get a probability of success at different spending levels. In addition, we analyze sources of income such as Social Security and Pension benefits and develop strategies to maximize the benefits over the clients’ lifetime. Insurance Planning: DG reviews an individual’s risks of loss and determines the appropriate types and amounts of insurance to provide adequate protection against those potential losses, 3 Form ADV, Part 2A including personal risks (life insurance, disability insurance, health insurance, and long-term care insurance), property risks (homeowners insurance, automobile insurance, flood insurance, and insurance on rental properties), and liability risks (including personal umbrella liability insurance, professional liability, and directors’ errors and omissions coverage). In evaluating the sufficiency of life insurance, DG employs both the “income replacement” and the “expense coverage” analysis methods. Estate Planning: Estate planning is the process of coordinating wills, trusts and ancillary documents to most effectively accomplish a person’s tax and non-tax objectives for accumulating, transferring, and disposing of assets, both during the individual’s lifetime and after death. The primary objectives of an estate plan are to provide for the support and comfort of a surviving spouse and/or dependents, and to maximize the transfer of wealth to subsequent generations or to other beneficiaries. Tax Management: The objective of tax planning is to pay the lowest amount of tax that is legally permissible, consistent with overall financial planning objectives. Taxes impact almost every area of personal financial planning, and DG tailors tax planning strategies according to the client’s age, family status, and sources of income, as well as the constantly-changing tax law and regulations. Business Planning: Planning for a small-business owner encompasses a variety of issues, including income tax planning, succession planning and buy/sell agreements, valuations of business interests, and evaluating professional liability and worker’s compensation insurance needs. Education Planning: Planning for financing the formidable costs of attending institutions of higher education is a concern for every parent, and should be undertaken well in advance of the child’s attaining college age. DG provides a detailed evaluation of education funding needs (tuition, fees, books, and room and board for public and private institutions) for each child, and customized recommendations concerning projected amounts remaining to be funded and education savings options. Situation-Specific Needs: While some aspects of financial planning are universal, certain objectives or circumstances may have a dramatic impact on the process. A few examples include the following: specific asset protection needs, family limited partnerships, charitable giving arrangements, special needs trusts and planning for, or following, a divorce, death of a spouse, retirement packages, stock options and severance packages. 4 Form ADV, Part 2A