This entity has not been resolved onto another DFX graph by a shared identifier. A name match elsewhere would be a candidate, never an identity, and none is recorded.

Current firm

OPPENHEIMER & CO. INC.

Current firm class

broker-dealer affiliated wealth managerderived

Book size

not publicno per-advisor AUM is published by the SEC, FINRA or IAPD, and DFX estimates none

Industry start

Jun 10, 1980earliest registration or exam on IAPD

Years in industry

46derivedfrom the industry start date

Years at current firm

9derivedfrom the current registration's begin date

Prior firms

2

Current registrations

1

Registered states

2

Designations

Certified Financial Planner

Exams

S63|S65

First exam

Jun 10, 1980

First registration

Oct 6, 2006

Dual registered

yes, broker-dealer

Other names

ALLEN DUANE OBRIAN|ALLEN DUANE O'BRIAN|ALLEN DUANE OBRIAN

IAPD individual key

350309

Graph

RIA / Wealth Management

Canonical id

dfx:ria:5954d3ee-3aa7-77e9-ae4b-0fcef4a3d5b6

First observed

Oct 6, 2006

Last observed

Sep 14, 2026 5 days ago

Source families

Federal regulator filings

1 registered feed stand behind this record; each fact above carries its own dates and, where the publisher serves one, its document.

Resolution

Identity across graphs by shared identifier (CRD, CIK, EIN, ADV fund id, individual CRD) or citation; a name match is shown as a candidate and never merged.