# Mark Obrien

> Mark Obrien is a fee-only financial advisor at Obrien Greene & CO in Media, Pennsylvania. Obrien Greene & CO reports charging a percentage of assets, hourly fees, fixed fees and performance-based fees on its Form ADV.

Page: https://find.wellspent.co/advisors/mark-obrien/
Built from SEC adviser records; last checked October 30, 2026.

## Facts

- **Firm:** Obrien Greene & CO
- **Based in:** Media, Pennsylvania
- **Fee model (firm's Form ADV):** Percentage of assets; Hourly; Fixed fees; Performance-based fees
- **Assets under management (firm):** $464.3M across 355 accounts
- **CRD:** 1631654 (https://adviserinfo.sec.gov/individual/summary/1631654)
- **SEC registration:** Investment adviser representative in PA, TX
- **Exams passed:** Series 63 (1987)
- **Firm size:** 7 employees
- **Disclosures:** None reported
- **Website:** https://www.obriengreene.com

## Frequently asked questions

### Is Mark Obrien a fee-only financial advisor?

Yes, according to SEC records as of October 29, 2026: Mark holds no broker registration, and Obrien Greene & CO reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency on its Form ADV.

### How does Mark charge for financial advice?

Mark's firm, Obrien Greene & CO, reports charging a percentage of assets, hourly fees, fixed fees and performance-based fees on its SEC Form ADV.

### Where is Mark Obrien based?

Mark Obrien is based in Media, Pennsylvania.

### Is Mark Obrien registered with the SEC?

Yes. Mark Obrien is registered as an investment adviser representative in PA and TX (CRD 1631654), per SEC Investment Adviser Public Disclosure data as of October 29, 2026.

### How much does Obrien Greene & CO manage?

Obrien Greene & CO reports $464.3M across 355 accounts in assets under management.

### How do I contact Mark Obrien?

Through Mark's website, www.obriengreene.com.

## Sources

- SEC adviser records (https://adviserinfo.sec.gov/individual/summary/1631654): the firm's Form ADV reports no commissions, no broker-dealer, and no insurance sales or affiliated insurance agency, and the advisor holds no broker registration
- SEC Investment Adviser Public Disclosure and Form ADV: registration, exams, and firm facts, data as of October 29, 2026

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Source: Wellspent, the public graph of fee-only advisors (https://find.wellspent.co). No paid placement.