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SENTINEL ADVISORY GROUP, LLC
CRD 338121File 801-134809
APPROVED
Retail clients
Custody
Filing as of Mar 2, 2026
Feed vintage Aug 17, 2026
Regulatory AUM
$320.8M
Below cohort median (national)
Discretionary AUM
$320.8M
Clients
381
1,089 accounts
Employees
10
Below cohort median in WI
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- CHRO
- Registration date
- Dec 2, 2025
- Principal office
- 1600 ASPEN COMMONS, SUITE 825, MIDDLETON, WI, 53562
- Phone
- 608-579-9350
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $320.8M
- Discretionary AUM
- $320.8M
- Non-discretionary AUM
- $0
- Discretionary accounts
- 1,089
- Non-discretionary accounts
- 0
- Total accounts
- 1,089
- AUM per client
- $842K
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Charitable organizations | Fewer than 5 | $276K |
| High net worth individuals | 95 | $195.0M |
| Individuals (other than high net worth individuals) | 284 | $125.4M |
Compensation & activities
ADV Items 5E, 5GCompensation
- Fixed fees
- A percentage of assets under your management
Advisory activities
- Financial planning services
- Selection of other advisers
- Portfolio management for other
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- Yes
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- Yes
- 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 |
|---|---|---|---|
| Aug 12, 2026 | Registration | — | APPROVED |
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.

