# Mayport Wealth Management

Mayport Wealth Management is a Bank / Wealth / Trust based in Newton, United States.

## Overview

- **Organization type:** Bank / Wealth / Trust
- **Headquarters:** Newton, United States
- **Region:** North America
- **Address:** 300 Washington Street, Suite 814, Newton, MA 02458, United States
- **Founded:** 2017
- **Assets under management:** Undisclosed
- **Website:** mayport.com
- **LinkedIn:** https://www.linkedin.com/company/mayport

## Regulatory record

- **CRD number:** 288215
- **SEC file number:** 801-119353
- **Registration status:** APPROVED
- **Latest Form ADV filing:** 2026-03-10T05:00:00.000Z
- **Reports private funds:** No
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/288215

## About

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.

## People

- Adam M. Grossman — Founder and Principal
- Shane P. Kelly — Senior Wealth Management Associate

## Questions

### How does Mayport charge for its services?

Mayport charges a flat fee for wealth management, financial planning, and investment management, rather than the traditional percentage-of-assets fee structure common in the advisory industry. The firm states it is a fee-only fiduciary, meaning it receives no commissions, soft dollars, or compensation from proprietary products. Founder Adam Grossman has publicly described this as a deliberate choice to align the firm's incentives with client outcomes.

### What investment approach does Mayport use for client portfolios?

Mayport builds client portfolios using low-cost index funds, a strategy that reflects founder Adam Grossman's evidence-based investment philosophy. Grossman has stated that investors should focus on controlling predictable factors — fees, expenses, commissions, and taxes — rather than attempting to predict markets or select individual stocks. The firm does not use proprietary products or generate revenue from fund selection.

## Related profiles

- [Mayport Venture Partners](https://altss.com/profile/mayport-venture-partners)
- [May River Capital](https://altss.com/profile/may-river-capital)

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Last updated: 2026-06-03T20:00:00.000Z

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