Mark Grywacheski has been an investment adviser representative at Quad-Cities Investment Group since February 2016, and is not listed among the firm’s executive officers or direct owners. Mark Grywacheski holds an MS in Accounting from Illinois State University and a BS in Accounting from Illinois State University.
Quad-Cities Investment Group, LLC is a Davenport, IA firm with $426M under management, 610 clients and 6 advisers in one office, as of its April 2026 filing.
Mark Grywacheski is Partner, Advisor of Quad Cities Investment Group, LLC, based in Davenport, IA. He began his career on the floor of the Chicago Board Options Exchange, where he traded derivatives and structured products for over fourteen years. He also served as a derivatives industry Arbitrator and sat on multiple Chicago financial exchange committees for over a decade.
Mark Grywacheski’s longest registration is the current one, 10 years at Quad-Cities Investment Group since 2016. Before joining Quad-Cities Investment Group in 2016, Mark Grywacheski was registered through Irongate International, L.L.C.
- – present · 10 yearsDavenport, IA · Adviser representative · Firm CRD 154113
- Irongate International, L.L.C.– · under a yearMoline, IL · Adviser representative · Firm CRD 119818
Investment adviser representative registrations
Mark Grywacheski is registered as an investment adviser representative in 2 states. Each was approved in February 2016.
- IllinoisSince 1 February 2016
- IowaSince 1 February 2016
Examinations
| Exam | Name | Passed |
|---|---|---|
| Series 65 | Uniform Investment Adviser Law Examination | 9 February 2015 |
- Name
- Uniform Investment Adviser Law Examination
- Full name
- Mark Marion Grywacheski
- CRD
- 5491914
- Firm
- Quad-Cities Investment Group · CRD 154113
- Office
- 5177 UTICA RIDGE ROAD, Davenport, IA 52807
- Registration
- Investment adviser registration
- In the industry since
- April 2015
- Disciplinary history
- Not yet shown here · SEC record
- Firm bio
- quadcitiesinvestmentgroup.com
Where does Mark Grywacheski work?
Mark Grywacheski is an investment adviser representative registered through Quad-Cities Investment Group, LLC since February 2016, and is not listed among the firm’s executive officers or direct owners.
Is Mark Grywacheski a financial advisor?
Yes. Mark Grywacheski has a current investment-adviser registration in Illinois and Iowa, through Quad-Cities Investment Group since February 2016.
How many years of experience does Mark Grywacheski have?
Mark Grywacheski has 11 years in the financial industry, since April 2015, across 2 adviser firms.
What exams has Mark Grywacheski passed?
Mark Grywacheski passed the Series 65 in February 2015.
Where did Mark Grywacheski work before Quad-Cities Investment Group?
Before Quad-Cities Investment Group, Mark Grywacheski was registered through Irongate International, L.L.C., February 2015 to December 2015.
Where is Mark Grywacheski based?
Mark Grywacheski’s registered office is in Davenport, IA.
Is Mark Grywacheski registered with FINRA?
No. Mark Grywacheski has no current broker registration.
How can I verify Mark Grywacheski’s record?
Search CRD 5491914 on the SEC’s adviser search (adviserinfo.sec.gov), which publishes Mark Grywacheski’s full registration record.

