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O'BRIEN CAPITAL MANAGEMENT, INC.
CRD 136100File 801-120981
APPROVED
Retail clients
Filing as of Mar 27, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$40.6M
Bottom 25% of cohort (national)
Discretionary AUM
$40.6M
Clients
43
99 accounts
Employees
1
Bottom 25% of cohort in NY
Identity & registration
ADV Item 1- Organization form
- Corporation
- Firm type
- Registered
- SEC region
- NYRO
- Registration date
- Apr 29, 2021
- Principal office
- 48 BURD STREET, STE. 209, NYACK, NY, 10960
- Phone
- 845-358-4930
- Website
- HTTP://WWW.OBRIENCM.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $40.6M
- Discretionary AUM
- $40.6M
- Non-discretionary AUM
- $0
- Discretionary accounts
- 99
- Non-discretionary accounts
- 0
- Total accounts
- 99
- AUM per client
- $944K
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| High net worth individuals | 15 | $28.1M |
| Individuals (other than high net worth individuals) | 28 | $12.5M |
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 | Clients | 41 | 43 | increased by2 |
| Apr 1, 2026 | AUM | $37,187,838 | $40,600,000 | increased by$3,412,162 |
| Apr 1, 2026 | Accounts | 87 | 99 | increased by12 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 40 | 41 | increased by1 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $29,638,784 | $37,187,838 | increased by$7,549,054 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 81 | 87 | increased by6 |
| Apr 1, 2022 | Clients | 43 | 40 | decreased by3 |
| Apr 1, 2022 | AUM | $27,651,000 | $29,638,784 | increased by$1,987,784 |
| Apr 1, 2022 | Accounts | 76 | 81 | increased by5 |
| May 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 “O'BRIEN CAPITAL” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“O'BRIEN CAPITAL” 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.