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RIA / WealthAdvisordual registered (broker-dealer)21 years in industry

ROBERT WALDEMAR PETERSEN

Advisor at CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.

Bloomington, MN | Farmington, MN | Lakeville, MN

This is the graph view. The full profile, with its team, deals and sources, is on RIA / Wealth Management.Open the full profile →

Search this name across graphsid dfx:ria:34e433f9-6c5c-d451-e641-e5601c7a7620

Data as of Sep 15, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 8:56 AM UTC and rebuilt at most every 15 minutes.

Relationships: 4
Dated events: 1
On other graphs: 0
Observed: May 27, 2009 to Sep 15, 2026

Across DFX

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.

Facts

fact = as filed or announced; derived = computed by DFX; estimate = a band, never a point

Current firm: CAMBRIDGE INVESTMENT RESEARCH ADVISORS, 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: May 1, 2005earliest registration or exam on IAPD
Years in industry: 21derivedfrom the industry start date
Years at current firm: 4derivedfrom the current registration's begin date
Prior firms: 3
Current registrations: 1
Registered states: 1
Exams: S66|S63
First exam: Jan 21, 2009
First registration: May 27, 2009
Dual registered: yes, broker-dealer
Other names: BOB WALDEMAR PETERSEN|ROBERT PETERSON
IAPD individual key: 5627139

Registration history

registration spans on IAPD; the basis says whether the span is a current registration or a prior employment record

Firm	Class	Began	Ended	Current	Branch	Basis
CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.	Bd affiliated wealth	Feb 1, 2022	n/a	yes	Bloomington, MN\|Farmington, MN\|Lakeville, MN	Current employment
SECURITIES AMERICA ADVISORS, INC.	Former SEC adviser	Feb 17, 2011	Feb 1, 2022	no	ROSEMOUNT, MN\|EDINA, MN	Previous registration
QA3 FINANCIAL LLC	n/a	Oct 1, 2010	Feb 11, 2011	no	FARMINGTON, MN	Previous registration
EQUITABLE ADVISORS, LLC	National bd RIA	May 27, 2009	Aug 5, 2009	no	MINNEAPOLIS, MN	Previous registration

Moves

a move is two registration dates; a bulk corporate re-registration is typed BULK_TRANSFER and is not a move

From	To	Left	Joined	Gap, days	Kind	Move type
SECURITIES AMERICA ADVISORS, INC.	CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.	Feb 1, 2022	Feb 1, 2022	0	Firm change	Ibd to ibd
QA3 FINANCIAL LLC	SECURITIES AMERICA ADVISORS, INC.	Feb 11, 2011	Feb 17, 2011	6	Firm change	Other
EQUITABLE ADVISORS, LLC	QA3 FINANCIAL LLC	Aug 5, 2009	Oct 1, 2010	422	Firm change after gap	Other

Team moves

moves this advisor made together with colleagues (two or more registrations ending and beginning together)

Team	Left	Joined	From	Kind
110518:134139:MN:2022-02-01	Feb 1, 2022	Feb 1, 2022	EDINA, MN	Firm change

Relationships

Registered with (4)

→ CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.Registered adviserregistration: current employment
Feb 1, 2022 to presentfactForm ADV
→ SECURITIES AMERICA ADVISORS, INC.Registered adviserregistration: previous registration
Feb 17, 2011 to Feb 1, 2022factForm ADV
→ QA3 FINANCIAL LLCRegistered adviserregistration: previous registration
Oct 1, 2010 to Feb 11, 2011factForm ADV
→ EQUITABLE ADVISORS, LLCRegistered adviserregistration: previous registration
May 27, 2009 to Aug 5, 2009factForm ADV

Dated events

Occurred
Feb 1, 2022
Advisor changed firm
Robert Waldemar Petersen left Securities America Advisors, Inc. for Cambridge Investment Research Advisors, Inc. (registered 2022-02-01)
Form ADVobserved 5 days ago

Provenance

Graph: RIA / Wealth Management
Canonical id: dfx:ria:34e433f9-6c5c-d451-e641-e5601c7a7620
First observed: May 27, 2009
Last observed: Sep 15, 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.

ROBERT WALDEMAR PETERSEN

Advisor at CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.

Bloomington, MN | Farmington, MN | Lakeville, MN

This is the graph view. The full profile, with its team, deals and sources, is on RIA / Wealth Management.Open the full profile →

Search this name across graphsid dfx:ria:34e433f9-6c5c-d451-e641-e5601c7a7620

Data as of Sep 15, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 8:56 AM UTC and rebuilt at most every 15 minutes.

Firm

Class

Began

Ended

Current

Branch

Basis

CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.

Bd affiliated wealth

Feb 1, 2022

n/a

yes

Bloomington, MN|Farmington, MN|Lakeville, MN

Current employment

SECURITIES AMERICA ADVISORS, INC.

Former SEC adviser

Feb 17, 2011

Feb 1, 2022

ROSEMOUNT, MN|EDINA, MN

Previous registration

QA3 FINANCIAL LLC

n/a

Oct 1, 2010

Feb 11, 2011

FARMINGTON, MN

Previous registration

EQUITABLE ADVISORS, LLC

National bd RIA

May 27, 2009

Aug 5, 2009

MINNEAPOLIS, MN

Previous registration

From

Left

Joined

Gap, days

Kind

Move type

SECURITIES AMERICA ADVISORS, INC.

CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.

Feb 1, 2022

Firm change

Ibd to ibd

QA3 FINANCIAL LLC

SECURITIES AMERICA ADVISORS, INC.

Feb 11, 2011

Feb 17, 2011

Firm change

Other

EQUITABLE ADVISORS, LLC

QA3 FINANCIAL LLC

Aug 5, 2009

Oct 1, 2010

422

Firm change after gap

Other

Team

Left

Joined

From

Kind

110518:134139:MN:2022-02-01

Feb 1, 2022

EDINA, MN

Firm change