← Directory
S.A. MASON, LLC
CRD 151440File 801-70548
APPROVED
Retail clients
Filing as of Mar 26, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$528.7M
Above cohort median (national)
Discretionary AUM
$427.3M
Non-discretionary $101.4M
Clients
282
881 accounts
Employees
3
Above cohort median in MI
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- CHRO
- Registration date
- Sep 16, 2009
- Principal office
- 170 COLLEGE AVENUE, SUITE 260, HOLLAND, MI, 49423
- Phone
- 616-355-3500
- Website
- https://sa-mason.com/
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $528.7M
- Discretionary AUM
- $427.3M
- Non-discretionary AUM
- $101.4M
- Discretionary accounts
- 823
- Non-discretionary accounts
- 58
- Total accounts
- 881
- AUM per client
- $1.9M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Other | 10 | $12.9M |
| Charitable organizations | 18 | $30.1M |
| High net worth individuals | 90 | $460.6M |
| Individuals (other than high net worth individuals) | 164 | $25.0M |
Compensation & activities
ADV Items 5E, 5GCompensation
- Fixed fees
- Hourly charges
- A percentage of assets under your management
Advisory activities
- Financial planning services
- 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 |
|---|---|---|---|---|
| Apr 1, 2026 | Employees | 2 | 3 | increased by1 |
| Apr 1, 2026 | Clients | 274 | 282 | increased by8 |
| Apr 1, 2026 | AUM | $636,110,522 | $528,671,189 | decreased by$107,439,333 |
| Apr 1, 2026 | Accounts | 805 | 881 | increased by76 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 204 | 274 | increased by70 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $544,361,523 | $636,110,522 | increased by$91,748,999 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 627 | 805 | increased by178 |
| Apr 1, 2022 | Clients | 176 | 204 | increased by28 |
| Apr 1, 2022 | AUM | $479,852,586 | $544,361,523 | increased by$64,508,937 |
| Apr 1, 2022 | Accounts | 578 | 627 | increased by49 |
| Apr 1, 2021 | Registration | — | APPROVED |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “MASON” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“MASON” 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.