Mayport Wealth Management

Overview

Adam Grossman founded Mayport Wealth Management in 2017 as a Massachusetts-based RIA explicitly designed to break from the industry's dominant pricing model. Instead of charging clients a percentage of assets under management, the firm operates on a flat-fee basis. Grossman, a CFA charterholder with an MIT Sloan MBA and a Williams College BA, anchors the practice in financial planning that starts every client relationship with a written blueprint, supported by a stated preference for low-cost index fund portfolios and an evidence-based investment philosophy drawn from academic research. Mayport delivers investment management, financial planning, and wealth management to individuals, high-net-worth individuals, corporations, trusts, and estates. The firm constructs portfolios using low-cost index funds, a direct expression of Grossman's view that investors should control fees, expenses, commissions, and taxes rather than attempt to forecast markets. The practice serves clients across the United States from its sole office in Newton, Massachusetts. Mayport does not use proprietary products, soft-dollar arrangements, or commission-based compensation, aligning its revenue model with the fiduciary standard it claims. The firm publicly discloses a two-person professional team: founder Adam Grossman and Senior Wealth Management Associate Shane Kelly, who joined in 2023 after stints at Putnam Investments and HarbourVest Partners. Kelly, also a CFA charterholder and a CFP® professional, supports investment analysis and financial planning. Mayport has not disclosed total assets under management, total clients, or aggregate deployment figures. The firm does not operate adjacent vehicles such as a philanthropic foundation, private fund, or real-asset arm. In May 2026, the firm published a blog post analyzing GameStop's bid to acquire eBay, reinforcing its ongoing practice of using public markets commentary as client education. Mayport's structural differentiator is a flat-fee fiduciary model that decouples advice revenue from asset levels, an approach that eliminates the incentive to maximize AUM. The firm's investment stance — indexing, tax-awareness, and cost discipline — is common among RIAs, but pairing it with a flat-fee structure from day one is not. Succession and governance risk sits with the founder; no junior principal or external ownership is disclosed. MAYPORT WEALTH MANAGEMENT was listed as registered with the SEC in the IAPD firm compilation observed on 2026-10-22. In Form ADV filed on 2026-03-10, it reported 3 employees; 756 advisory accounts; services including Financial planning, Portfolio management for individuals and small businesses, Selection of other advisers; client categories including Corporations or other businesses, High net worth individuals, Individuals (other than high net worth individuals); compensation arrangements including Fixed fees, Hourly charges. These are dated adviser-reported facts, not independently verified by Altss. Registration does not constitute approval or endorsement. This historical filing does not establish current registration status or operations.