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COSTON, MCISAAC & SHEA FINANCIAL ADVISORS
Legal name: COSTON, MCISAAC, AND PARTNERS INC.
CRD 194515File 801-96330
APPROVED
Retail clients
Filing as of May 21, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$466.9M
Above cohort median (national)
Discretionary AUM
$466.9M
Clients
1,254
1,254 accounts
Employees
12
Above cohort median in ME
Identity & registration
ADV Item 1- Organization form
- Corporation
- Firm type
- Registered
- SEC region
- BRO
- Registration date
- May 26, 2015
- Principal office
- 38 RODICK STREET-SUITE B, BAR HARBOR, ME, 04609-1806
- Phone
- 207-288-4747
- Website
- HTTP://WWW.COSTONSHEA.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $466.9M
- Discretionary AUM
- $466.9M
- Non-discretionary AUM
- $0
- Discretionary accounts
- 1,254
- Non-discretionary accounts
- 0
- Total accounts
- 1,254
- AUM per client
- $372K
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| High net worth individuals | 235 | $269.8M |
| Individuals (other than high net worth individuals) | 1,019 | $197.1M |
Compensation & activities
ADV Items 5E, 5GCompensation
- Fixed fees
- A percentage of assets under your management
Advisory activities
- Other advisory activities
- Selection of other advisers
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- No
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Feb 1, 2026 | Employees | 10 | 12 | increased by2 |
| Feb 1, 2026 | Clients | 1,513 | 1,254 | decreased by259 |
| Feb 1, 2026 | AUM | $405,676,340 | $466,919,598 | increased by$61,243,258 |
| Feb 1, 2026 | Accounts | 1,513 | 1,254 | decreased by259 |
| May 1, 2025 vs Oct 1, 2022 | Employees | 9 | 10 | increased by1 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 1,229 | 1,513 | increased by284 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $270,807,048 | $405,676,340 | increased by$134,869,292 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 1,229 | 1,513 | increased by284 |
| Oct 1, 2022 | Clients | 1,158 | 1,229 | increased by71 |
| Oct 1, 2022 | AUM | $250,807,048 | $270,807,048 | increased by$20,000,000 |
| Oct 1, 2022 | Accounts | 1,158 | 1,229 | increased by71 |
| Feb 1, 2022 | Employees | 7 | 9 | increased by2 |
| Feb 1, 2022 | Clients | 10,045 | 1,158 | decreased by8,887 |
| Feb 1, 2022 | AUM | $190,101,611 | $250,807,048 | increased by$60,705,437 |
| Feb 1, 2022 | Accounts | 1,045 | 1,158 | increased by113 |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “COSTON MCISAAC” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“COSTON MCISAAC” may also match similarly-named firms). Confirm identity against each filing.
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.