Mark Douglas Brost

Current Employers

Employment History

• 04/1998 → Present
  Offerman & Company
  Bruce, WI
• 04/2001 → 09/2025
  Avantax Investment Services, Inc.
  Ladysmith, WI
• 10/2012 → Present
  Mark D. Brost
  Bruce, WI
• 01/2015 → Present
  Brost Financial Services Lp
  Bruce, WI
• 01/2017 → 10/2018
  Rusk County Hospital Board
  Ladysmith, WI
• 04/2004 → 09/2025
  Avantax Insurance Agency, Llc
  Ladysmith, WI
• 03/2002 → 09/2025
  Avantax Advisory Services
  Ladysmith, WI
• 09/2025 → Present
  Cetera Wealth Services, Llc
  Ladysmith, WI
• 09/2025 → Present
  Cetera Investment Advisers Llc
  Schaumburg, IL

Previous Registrations

• 2002-03-05 → 2025-09-05
  Avantax Advisory Services
  Bruce, WI
  Ladysmith, WI

Other Businesses

1) Brost Financial Services, LP 818 W. Roesler Avenue Ladysmith WI 54848 Other 1/15/2015 160hrs~130hrs Brost Financial Services LP is the entity under which I do business as a registered representative, investment advisory representative and CFP. All business is done through Avantax Investment Services and Avantax Insurance Services. 2) Marshfield Clinic Rusk Cty Citizen Advisory Board 906 College Avenue Ladysmith WI 54848 Board Position/Officer Other 1/1/2019 2hrs~2hrs Meet as an Advisory Board 4-8 times per year with the Clinic CEO and Clinic Regional Executive to overview operations and issues related to the facility. As the Advisory Board role is non-binding to the facility this is largely an informative role in representing the County. 3) MARK D. BROST POSITION: Teacher/Professor/Trainer NATURE: Not currently engaged, but in the past have taught continuing education courses to insurance agents as well as non-credit courses through the local school district and Vocational Education program. INVESTMENT RELATED: No NUMBER OF HOURS: 1 SECURITIES TRADING HOURS: 1 START DATE: 10/10/2012; ADDRESS: 818 W Roesler Avenue, Ladysmith WI 54848, US; Prepare and present courses to the above referenced groups. Courses are marketed by the educational unit that they are held at. 4) TRUPLAN FINANCIAL ADVISORS POSITION: D/B/A Name for organization as I am a sub-rep for Avantax Business NATURE: Name of Avantax practice where I serve as Sub-Rep. (New Name only for existing relationship) INVESTMENT RELATED: No NUMBER OF HOURS: 200 SECURITIES TRADING HOURS: 130 START DATE: 02/15/2025 ADDRESS: 818 Roesler Avenue W, Ladysmith WI 54848, United States DESCRIPTION: DBA name only for Avantax Business Activities.

Exams

• S65 Uniform Investment Adviser Law Examination
  2000-10-07
• S63 Uniform Securities Agent State Law Examination
  1992-12-17

Designations