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JOHN A. BYSKO ASSOCIATES
Legal name: BYSKO JOHN ALLAN
CRD 110612File 801-81151
APPROVED
Retail clients
Custody
Disclosure events
Filing as of Mar 29, 2024
Feed vintage Aug 17, 2026
Regulatory AUM
$204.3M
Below cohort median (national)
Discretionary AUM
$204.3M
Clients
124
124 accounts
Employees
1
Bottom 25% of cohort in CT
Identity & registration
ADV Item 1- Organization form
- Sole Proprietorship
- Firm type
- Registered
- SEC region
- BRO
- Registration date
- Mar 20, 2015
- Principal office
- 100 HALLS ROAD, OLD LYME, CT, 06371
- Phone
- 860-434-3632
- Website
- Not reported
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $204.3M
- Discretionary AUM
- $204.3M
- Non-discretionary AUM
- $0
- Discretionary accounts
- 124
- Non-discretionary accounts
- 0
- Total accounts
- 124
- AUM per client
- $1.6M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Charitable organizations | Fewer than 5 | $6.6M |
| High net worth individuals | 67 | $182.4M |
| Individuals (other than high net worth individuals) | 55 | $15.2M |
Compensation & activities
ADV Items 5E, 5GCompensation
- Fixed fees
- A percentage of assets under your management
Advisory activities
- 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 11- Q11C2
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.

