John Callahan has been an investment adviser representative at Merrion Investment Management since May 2012, and is not listed among the firm’s executive officers or direct owners. John Callahan holds a BA from Boston College and an MBA from Fairleigh Dickinson University.
Merrion Investment Management Co, LLC is a Cranford, NJ firm with $245M under management, 37 clients and 3 advisers across 2 offices, as of its February 2026 filing.
John Callahan is Managing Director of Merrion Investment Management Co. He joined Merrion in May 2012 with a focus on marketing, customer relations and investment advisory. He has over thirty years experience in capital markets and asset management and has held senior positions at major financial institutions including Credit-Suisse, Donaldson, Lufkin & Jenrette (DLJ), Goldman Sachs, and Salomon Brothers.
John Callahan’s longest registration is the current one, 14 years at Merrion Investment Management since 2012. Before joining Merrion Investment Management in 2012, John Callahan was registered through Raymond James & Associates, Inc.
- – present · 14 yearsCranford, NJ · Adviser representative · Firm CRD 139143
- Raymond James & Associates, Inc.– · under a yearNew York City, NY · Adviser representative · Firm CRD 705
Professional designations
Listed by Merrion Investment Management
- Chartered Financial Analyst (CFA)
Examinations
| Exam | Name | Passed |
|---|---|---|
| SIE | Securities Industry Essentials Examination | Credited |
| Series 24 | General Securities Principal Examination | 5 November 1996 |
| Series 3 | National Commodity Futures Examination | 26 June 1984 |
| Series 5 | Interest Rate Options Examination | 23 May 1984 |
| Series 15 | Foreign Currency Options Examination | 4 April 1984 |
| Series 63 | Uniform Securities Agent State Law Examination | 21 March 1984 |
| Series 7 | General Securities Representative Examination | 16 July 1983 |
- Name
- Securities Industry Essentials Examination
- Name
- General Securities Principal Examination
- Name
- National Commodity Futures Examination
- Name
- Interest Rate Options Examination
- Name
- Foreign Currency Options Examination
- Name
- Uniform Securities Agent State Law Examination
- Name
- General Securities Representative Examination
- Full name
- John Patrick Callahan
- CRD
- 1146615
- Firm
- Merrion Investment Management · CRD 139143
- Office
- 184 NORTH AVE. EAST, Cranford, NJ 07016
- Registration
- Investment adviser registration
- In the industry since
- May 1987
- Disciplinary history
- Not yet shown here · SEC record
- Firm bio
- merriongroup.net
Where does John Callahan work?
John Callahan is an investment adviser representative registered through Merrion Investment Management Co, LLC since May 2012, and is not listed among the firm’s executive officers or direct owners.
Is John Callahan a financial advisor?
Yes. John Callahan has a current investment-adviser registration, through Merrion Investment Management since May 2012.
How many years of experience does John Callahan have?
John Callahan has 39 years in the financial industry, since May 1987, across 2 adviser firms.
What exams has John Callahan passed?
John Callahan has passed 6 licensing exams: the Series 7, Series 63, Series 15, Series 5, Series 3 and Series 24. The earliest, the Series 7, was passed in July 1983. FINRA credited John Callahan with the SIE, which began in October 2018.
Where did John Callahan work before Merrion Investment Management?
Before Merrion Investment Management, John Callahan was registered through Raymond James & Associates, Inc., March 2007 to January 2008.
Where is John Callahan based?
John Callahan’s registered office is in Cranford, NJ.
Is John Callahan registered with FINRA?
No. John Callahan has no current broker registration.
Is John Callahan a CFA charterholder?
Merrion Investment Management lists John Callahan with the CFA credential (“Chartered Financial Analyst (CFA)”) on its website. CFA Institute confirms certification status.
How can I verify John Callahan’s record?
Search CRD 1146615 on the SEC’s adviser search (adviserinfo.sec.gov), which publishes John Callahan’s full registration record.