DFX Intelligence

Data Factory

RIA / WealthAdvisordual registered (broker-dealer)28 years in industry

BRYAN CHARLES TENNANT

Advisor at HARRIS | OAKMARK

CHICAGO, IL

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:dc540ce6-02df-9962-bb41-d97c19c07a5c

Data as of Sep 14, 2026 (this record's last observation) from federal regulator filings. Page built Sep 19, 2026, 3:36 AM UTC and rebuilt at most every 15 minutes.

Relationships: 8
Dated events: 2
On other graphs: 0
Observed: Nov 12, 2002 to Sep 14, 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: HARRIS | OAKMARK
Current firm class: asset managerderived
Book size: not publicno per-advisor AUM is published by the SEC, FINRA or IAPD, and DFX estimates none
Industry start: Aug 19, 1998earliest registration or exam on IAPD
Years in industry: 28derivedfrom the industry start date
Years at current firm: 0derivedfrom the current registration's begin date
Prior firms: 7
Current registrations: 1
Registered states: 1
Exams: S65|S63
First exam: Aug 19, 1998
First registration: Nov 12, 2002
Dual registered: yes, broker-dealer
Other names: BRYAN CHARLES TENNANT|Bryan Tennant
IAPD individual key: 2998094

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
HARRIS \| OAKMARK	Asset manager	Oct 14, 2025	n/a	yes	CHICAGO, IL	Current employment
ASTOR INVESTMENT MANAGEMENT LLC	Former SEC adviser	Aug 5, 2022	Jun 5, 2024	no	CHICAGO, IL	Previous registration
AVIVA INVESTORS AMERICAS	Former SEC adviser	Feb 19, 2019	Jul 15, 2022	no	CHICAGO, IL	Previous registration
FIRST TRUST ADVISORS LP	Asset manager	Apr 17, 2018	Feb 8, 2019	no	WHEATON, IL	Previous registration
NUVEEN ASSET MANAGEMENT, LLC	Mixed wealth	Oct 18, 2011	Jan 30, 2018	no	CHICAGO, IL	Previous registration
CALAMOS WEALTH MANAGEMENT LLC	Independent wealth	Sep 17, 2010	Oct 14, 2011	no	NAPERVILLE, IL	Previous registration
COMMONWEALTH FINANCIAL NETWORK	National bd RIA	Dec 20, 2002	Jun 30, 2003	no	CHICAGO, IL	Previous registration
WELLS FARGO ADVISORS	Wirehouse	Nov 12, 2002	Jan 6, 2003	no	CHICAGO, IL	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
ASTOR INVESTMENT MANAGEMENT LLC	HARRIS \| OAKMARK	Jun 5, 2024	Oct 14, 2025	496	Firm change after gap	Other
AVIVA INVESTORS AMERICAS	ASTOR INVESTMENT MANAGEMENT LLC	Jul 15, 2022	Aug 5, 2022	21	Firm change	Other
FIRST TRUST ADVISORS LP	AVIVA INVESTORS AMERICAS	Feb 8, 2019	Feb 19, 2019	11	Firm change	Other
NUVEEN ASSET MANAGEMENT, LLC	FIRST TRUST ADVISORS LP	Jan 30, 2018	Apr 17, 2018	77	Firm change	Other
CALAMOS WEALTH MANAGEMENT LLC	NUVEEN ASSET MANAGEMENT, LLC	Oct 14, 2011	Oct 18, 2011	4	Firm change	Other
COMMONWEALTH FINANCIAL NETWORK	CALAMOS WEALTH MANAGEMENT LLC	Jun 30, 2003	Sep 17, 2010	2,636	Firm change after gap	Other
WELLS FARGO ADVISORS	COMMONWEALTH FINANCIAL NETWORK	Jan 6, 2003	Dec 20, 2002	-17	Firm change	Wirehouse to ibd

Relationships

Registered with (8)

→ HARRIS | OAKMARKRegistered adviserregistration: current employment
Oct 14, 2025 to presentfactForm ADV
→ ASTOR INVESTMENT MANAGEMENT LLCRegistered adviserregistration: previous registration
Aug 5, 2022 to Jun 5, 2024factForm ADV
→ AVIVA INVESTORS AMERICASRegistered adviserregistration: previous registration
Feb 19, 2019 to Jul 15, 2022factForm ADV
→ FIRST TRUST ADVISORS LPRegistered adviserregistration: previous registration
Apr 17, 2018 to Feb 8, 2019factForm ADV
→ NUVEEN ASSET MANAGEMENT, LLCRegistered adviserregistration: previous registration
Oct 18, 2011 to Jan 30, 2018factForm ADV
→ CALAMOS WEALTH MANAGEMENT LLCRegistered adviserregistration: previous registration
Sep 17, 2010 to Oct 14, 2011factForm ADV
→ COMMONWEALTH FINANCIAL NETWORKRegistered adviserregistration: previous registration
Dec 20, 2002 to Jun 30, 2003factForm ADV
→ WELLS FARGO ADVISORSRegistered adviserregistration: previous registration
Nov 12, 2002 to Jan 6, 2003factForm ADV

Dated events

Occurred
Jun 5, 2024
Advisor changed firm
Bryan Charles Tennant left Astor Investment Management Llc for Harris | Oakmark (registered 2025-10-14)
Form ADVobserved 4 days ago
Occurred
Jul 15, 2022
Advisor changed firm
Bryan Charles Tennant left Aviva Investors Americas for Astor Investment Management Llc (registered 2022-08-05)
Form ADVobserved 4 days ago