H. C. Denison Co.
- Regulatory AUM
- $310M
- Discretionary
- $310M
- Clients
- 343
- Avg AUM / client
- $904K
- Accounts
- 889
- Employees
- 4
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Mar 23, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 250 | $121M | 39.1% |
| High net worth individuals | 93 | $189M | 60.9% |
People (5)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Testwuide, Konrad Cullen | Chairman | Jan 1998 (29y) | Less than 5% | |
| James Anthony Testwuide | Ceo, Pres, & Treasurer, Cco, & Shareholder | Apr 2003 (23y) | 75% or more | |
| Robert Joseph Kuehl | Vice President | CFP | Apr 2003 (23y) | Less than 5% |
| Marlo Jean Testwuide | Chief Operations Officer And Vice President Of Operations | CFP | Feb 2019 (8y) | Less than 5% |
| Joy Marie Heinen | Registered representative | CFP | Apr 2022 (4y) |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/23/2026 | 1.03 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
Allegations: THE FIRM IDENTIFIED TRANSACTIONS HAD OCCURRED PRIOR TO ITS REGISTRATION BEING APPROVED BY THE STATE OF MAINE. Status: Final Sanction Detail: $2,500 FINE AND $2,655.37 DISGORGEMENT OF COMMISSIONS GENERATED PRIOR TO REGISTRATION RETURNED TO CLIENTS. REGISTRATION APPROVED 02/13/2023. Summary: H.C. DENISON TRANSACTED IN CLIENTS ACCOUNTS PRIOR TO APPLYING FOR REGISTRATION IN MAINE. H.C. DENISON PROMPTLY APPLIED WITH THE STATE OF MAINE. AFTER PAYING THE FINES AND DISGORGEMENT TO CLIENTS THE APPLICATION WAS APPROVED.
Disclosure text reproduced verbatim from the firm's own Form ADV filings.
How they charge
- • Percentage of assets under management
Services
- • Portfolio management for individuals/small businesses
- • Portfolio management for businesses/institutional clients
Custody
Reported custodians
- Hilltop Securities Inc. $310M (100% of AUM) Mar 2026
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports it does not have custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 23, 2026.
View current Form ADV (SEC/IAPD) ↗