# Mast Investment Advisors LLC

> Mast Investment Advisors LLC is a state-registered investment advisory firm, registered since 2002, reporting under $25 million in regulatory assets under management in its Form ADV filing dated March 17, 2005.

- CRD: 123571
- Filed as: MAST INVESTMENT ADVISORS LLC
- Registration: State-registered investment adviser (status as filed: APPROVED)
- Location: Registered in Illinois
- Filing period: October 2026
- Form ADV filing dated: March 17, 2005
- Public record (IAPD): https://adviserinfo.sec.gov/firm/summary/123571
- AdvisorCensus page: https://advisorcensus.com/firm/mast-investment-advisors-llc-123571

## Quick answers

**How is Mast Investment Advisors LLC compensated?**
On its Form ADV (Item 5.E, October 2026), Mast Investment Advisors LLC reports these compensation arrangements: a percentage of assets under its management. The amounts are in Item 5 of its Form ADV Part 2A brochure.

**Is Mast Investment Advisors LLC registered with the SEC or a state?**
Mast Investment Advisors LLC is a state-registered investment advisory firm, registered since 2002. Status as filed: APPROVED. CRD 123571.

**How much does Mast Investment Advisors LLC manage?**
Mast Investment Advisors LLC reports $10,000,000 in regulatory assets under management in its Form ADV filing dated March 17, 2005 (70% discretionary).

**Does Mast Investment Advisors LLC report any disciplinary disclosures?**
Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's public record on IAPD: https://adviserinfo.sec.gov/firm/summary/123571

## From the Form ADV filing

### Compensation (Item 5.E)
- A percentage of assets under your management

### Regulatory assets under management (Item 5.F)
- Total: $10,000,000
- Discretionary: $7,000,000
- Non-discretionary: $3,000,000

### Advisory services (Item 5.G)
- Portfolio management for individuals and/or small businesses
- Portfolio management for businesses (other than small businesses) or institutional clients

### Firm details
- Registered since: 2002 (24 years)
- Employees: Not reported total, Not reported performing advisory functions
- Wrap fee program participation: Not reported
- States registered or notice-filed: IL
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Websites listed on Form ADV (Item 1.I)
- mastinvestment.com

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Mast Investment Advisors LLC (CRD 123571): Form ADV filing data as of October 2026.