Excalibur Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, estate planning, and insurance. Financial planning was provided to 51–100 clients last fiscal year.
Excalibur Management reports 307 clients. They include 176 individual clients and 131 high-net-worth individuals. Of its assets, 99.3% ($707M across 827 accounts) are managed with discretion; $4.73M across 45 accounts are not.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 57% | 15% |
| High-net-worth individuals | 43% | 78% |
| Pension and profit-sharing plans | Fewer than 5 | <1% |
| Charitable organizations | Fewer than 5 | 2% |
| Corporations and other businesses | Fewer than 5 | 5% |
Client shares use reported counts. Client types without a reported count are excluded from that total.
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 176 | $106M | 14.8% | $600K |
| High-net-worth individuals | 131 | $553M | 77.7% | $4.22M |
| Pension and profit-sharing plans | Fewer than 5 | $2.91M | 0.4% | — |
| Charitable organizations | Fewer than 5 | $16.7M | 2.3% | — |
| Corporations and other businesses | Fewer than 5 | $33.7M | 4.7% | — |
| Total | 307 | $712M | 100% | — |
- Clients
- 176
- Regulatory AUM
- $106M
- AUM share
- 14.8%
- Avg. per client
- $600K
- Clients
- 131
- Regulatory AUM
- $553M
- AUM share
- 77.7%
- Avg. per client
- $4.22M
- Clients
- Fewer than 5
- Regulatory AUM
- $2.91M
- AUM share
- 0.4%
- Avg. per client
- —
- Clients
- Fewer than 5
- Regulatory AUM
- $16.7M
- AUM share
- 2.3%
- Avg. per client
- —
- Clients
- Fewer than 5
- Regulatory AUM
- $33.7M
- AUM share
- 4.7%
- Avg. per client
- —
Total
- Clients
- 307
- Regulatory AUM
- $712M
- AUM share
- 100%
- Avg. per client
- —
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 51–100
Excalibur Management charges up to 1.00% a year for its Investment Management Services. The fee is billed in arrears and is negotiable. The brochure also prices one other service, listed under fee details.
Fee details and sources
Other fees
- Integrated Financial Planning Services
- A fixed fee set client by client by the complexity of the engagement, with no standardized schedule.
Michael Delduchetto owns 50% to 75% of Excalibur Management. The leadership team of Excalibur Management includes President Michael Delduchetto and Chief Compliance Officer Ellen Bruno. It has 12 employees, 7 of them in advisory roles.
Leadership
- Michael DelduchettoPresident and Managing Director
- Ellen BrunoChief Compliance Officer
- Marc OhlerManaging Director and Principal
Investment adviser representatives
7 representatives listed in the SEC register as of 9 October 2026.
Staff
- 12 employees
- 7 in advisory functions
- 7 state-registered reps
- 1 insurance agent
- Owns 50% to 75% of Excalibur Management Corp
Michael Delduchetto
Control person · since April 2015
- Owns 50% to 75% of Excalibur Management Corp
Marc Ohler
Control person · since August 2015
Excalibur Management’s regulatory assets grew from $519M (March 2021) to $712M (September 2026); clients rose from 284 to 307 and employees from 9 to 12.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| September 2026 | $712M | 307 | 12 | 5 |
| March 2025 | $657M | 312 | 12 | 5 |
| May 2024 | $606M | 302 | 11 | 5 |
| July 2023 | $541M | 300 | 11 | 6 |
| March 2022 | $572M | 292 | 9 | 1 |
| March 2021 | $519M | 284 | 9 | 1 |
Besides its headquarters, Excalibur Management has 4 offices (4 private residences, listed without an address), with 1 listed address in Massachusetts.
Massachusetts · 1 listed address
- Bay Colony Corporate Center, 950 Winter Street North, Suite 4100, WalthamHQ
Contact and registration details
- Legal name
- Excalibur Management Corp
- Headquarters
- Bay Colony Corporate Center, 950 Winter Street North, Suite 4100, Waltham, MA 02451
- Website
- excalmgmt.com
- Phone
- 617-916-9669
- SEC file
- 801-39935
- Founded
- 1979
- Structure
- Massachusetts corporation
- Fiscal year end
- December
Excalibur Management uses Fidelity ($418M, 66%), FNZ Trust ($126M, 20%) and Charles Schwab ($87.4M, 14%) as custodians for its separately managed accounts. Excalibur Management has custody of $141M in client assets for 186 clients.
- FidelityFidelity Brokerage Services LLC · Boston, MA · $418M66%
- FNZ TrustFNZ Trust Company · Quincy, MA · $126M20%
- Charles SchwabCharles Schwab & Co., Inc. · Westlake, TX · $87.4M14%
At year end, Excalibur Management’s separately managed accounts were mostly in bonds (54%) and stocks (40%). Its reported 13F holdings for the quarter ended 30 June 2026 total $303M across 175 positions; the largest are Carlisle Cos Inc. (8.5%), Apple Inc. (5.6%) and Berkshire Hathaway Inc. Del (3.9%).
What the accounts hold
- Stocks40%
- Funds4%
- Bonds54%
- State and local bonds24%
- U.S. government and agency bonds18%
- Investment grade corporate bonds12%
- Cash2%
Reported 13F holdings
- $303M
- Reported 13F value
- 175
- Positions
- 37.0%
- In the 10 largest
- +9.0%
- Value vs. prior quarter
- Carlisle Cos Inc.8.5%
- Apple Inc.5.6%
- Berkshire Hathaway Inc. Del · CL B New3.9%
- JPMORGAN Chase & CO3.6%
- Microsoft Corp.3.5%
- Johnson & Johnson3.1%
- Alphabet Inc. · Cap Stk CL A2.2%
- Merck & CO Inc.2.2%
- Invesco Exchange Traded FD T · S&P500 Eql Wgt2.2%
- Intel Corp.2.1%
Together, the ten largest are 37.0% of reported value.
How many clients does Excalibur Management have?
Excalibur Management has 307 clients and manages $712 million for them, as of September 2026. They include 176 individual clients and 131 high-net-worth individuals.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 21 September 2026
What services does Excalibur Management offer?
Excalibur Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, estate planning, and insurance.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file; Part 2A brochure, Item 4
How much does Excalibur Management charge?
Excalibur Management charges up to 1.00% a year for its Investment Management Services. The fee is billed in arrears and is negotiable.
Source: 09 21 2026 EMC FORM ADV PART 2A AND 2B FINAL, filed 21 September 2026
Which custodians does Excalibur Management use?
Excalibur Management’s separately managed account assets are held at Fidelity Brokerage Services LLC (Boston, MA), with $418M, FNZ Trust Company (Quincy, MA), with $126M and Charles Schwab & Co., Inc. (Westlake, TX), with $87.4M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 21 September 2026
How many financial advisors does Excalibur Management have?
Excalibur Management has 7 investment adviser representatives registered with state securities authorities, out of 12 employees, and 7 perform investment advisory functions. 0 employees are registered representatives of a broker-dealer and 1 employee is a licensed insurance agent.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Excalibur Management invest in?
At the end of its last fiscal year, Excalibur Management’s separately managed accounts held 40% exchange-traded equities, 24% state and local bonds, 18% U.S. government and agency bonds, 12% investment grade corporate bonds, 4% registered funds (mutual funds, ETFs, BDCs) and 2% cash and equivalents.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Excalibur Management?
Excalibur Management’s direct owners are Michael Delduchetto (50% to 75%) and Marc Ohler (50% to 75%).
Source: Form ADV Part 1A, Schedules A and B, filed 21 September 2026
How does Excalibur Management get paid?
Excalibur Management is paid through a percentage of assets under management and fixed fees. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
How do I contact Excalibur Management?
Excalibur Management’s main office is at Bay Colony Corporate Center, 950 Winter Street North, Suite 4100, Waltham, MA 02451. Its phone number is 617-916-9669. Its website is excalmgmt.com.