DFX Intelligence

RIA Intelligence

Registered investment advisers, the advisors registered through them, the capital they report, the private vehicles they run and the people who own them, as a graph with a filing date behind every number. RAUM is what the adviser filed, a move is two registration dates, and a class is a rule you can read.

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SEC-registered adviser

M•••• C•••••• P•••••••

Independent wealth managerBoston, MassachusettsCRD 107412SEC 801-11877websiteIAPD
Legal name A••••• D• M•••• I••
Latest filing Mar 31, 2026
First filing on the tape Feb 9, 2012 · 31 filings
SEC status approved since Jul 29, 1976
RAUM
$211M
reported, Item 5.F
Discretionary
100%
of RAUM
Private clients
67%
$141M individuals and HNW
Advisors
4
registered through the firm on IAPD
RAUM per advisor
$52.7M
derived; firm RAUM over IAPD count
Employees
7
4 advisory (5.B.1)
Offices
0
beyond the principal office
Private funds
1
reported on Schedule D
History
31 filings and snapshots on the tape
RAUM$211M as of Mar 31, 2026
Feb 9, 2012$476M then
HNW client RAUM$122M as of Mar 31, 2026
Mar 29, 2018$39.4M then
State-registered IARs (5.B.3)0 as of Mar 31, 2026
Mar 14, 20130 then
Employees (5.A)7 as of Mar 31, 2026
Mar 14, 20137 then
Private funds1 as of Mar 31, 2026
Feb 9, 20123 then
RAUM +4.3% over the last fiscal year+4.7% a year over threeIARs 0 to 0
Practice profile
derived from the filing of Mar 31, 2026; every figure names its basis
Archetypes, each a printed rule
  • HNW wealth manager · private-client share of RAUM at least 50 percent and HNW share of private-client RAUM 50 to 90 percent
  • Independent boutique · a wealth manager with no broker-dealer, bank or insurance affiliate, 2 to 25 advisors, one to three offices, no public reporting company control
  • RIA with private funds · a wealth manager (private-client share at least 50 percent) that reports at least one private fund on Schedule D 7.B.(1)
RAUM per advisor
$52.7MderivedRAUM over IAPD advisors; not a book size
Clients per advisor
44derivedindividual and HNW clients (5.D) over advisors
Average HNW client
$1.3MderivedHNW RAUM over HNW clients
Average account
$702,016derivedRAUM over accounts (5.F.2.f)
Discretionary
100%derivedof RAUM
Institutional
3.4%derivedpensions, charities, corporations, government, insurance, banks, other advisers
Employees per advisor
1.8derivedItem 5.A over advisors
Advisors per office
4.0derived1 offices incl. principal (1.F.5)
RAUM growth, one year
+4.3%derivedbetween the last two annual amendments
Advisor growth, one year
unknownderivedItem 5.B.3 between annual amendments
Client growth, one year
+22%derived
Compensation
percentage of assetsreportedItem 5.E
Advisory activities
portfolio management for individuals, portfolio management for businesses and institutions, portfolio management for pooled vehiclesreportedItem 5.G
Custody
$211M, 223 clientsreportedItem 9.A
Ownership
no PE, bank or public-company owner found on Schedule Aderived
Advisor book size
not public; not estimatedreported
Also answered yes on Form ADV
  • buys or sells securities as principal to or from clients (8.A.2)
  • has discretionary authority over which securities are bought or sold (8.C.1)
  • compensates persons for client referrals (8.G.1)
  • compensates non-employees for client referrals (8.G.2)
  • has custody of client cash or bank accounts (9.A.1.a)
  • has custody of client securities (9.A.1.b)
  • an independent public accountant performs a surprise examination (9.C.1)
Where the RAUM sits
Form ADV Item 5.D, latest filing
  • High-net-worth individuals$122M58%
  • Pooled investment vehicles$60.1M29%
  • Individuals$19.1M9.1%
  • Pension and profit-sharing plans$7.1M3.4%
  • Corporations and businesses$2.0M0.9%
Individual clients
81reported
HNW clients
96reported
Pension plan clients
n/areported
Charitable clients
n/areported
Accounts
300reported
Financial planning clients
reported
Wrap fee programs
noreported
Custody of client assets
$211M for 223 clientsreported
Compensation
% of AUMreported
Class basis
private_client_share=0.67 fund_share=0.29 institutional_share=0.03 related_bd=false related_bank=false bd_reps=0.0derived
Advisors registered through the firm
4 on IAPD today, longest tenure first
NameBranchHere sinceIn industryPrior firms
G•••• T••••• P••••••Chartered Financial AnalystBoston, MaSep 6, 201220 y1
A••••• D•••• M••••Boston, MaSep 6, 201255 y1
M••• R••••• M•••••Boston, MaOct 10, 201815 y2
E••••• M•••••• B••••Chartered Financial AnalystBoston, MaJan 30, 202410 y1
Advisor movement
0 left, 0 joined in 12 months
net 0 in 12 months0 left in 90 days0 joined in 90 daysdeparture rate 0.0% of current headcount0 left over 36 months
Teams: two or more advisors moving together within fourteen days, from one state
    Private funds
    3 reported on Schedule D 7.B.(1)
    FundTypeGross assetsOwnersFirst reported
    D••••• I••••••••• G••••Other Private Fund$66.4M55Feb 9, 2012
    T•••••• I••••••••• G••••Other Private Fund$26.6M26Feb 9, 2012
    C•••••• I••••••••• G••••Other Private Fund$24.8M33Feb 9, 2012
    Owners and control persons
    Schedule A and B, latest filing
    • M••••• A•••••• D•••• · Presidentcontrol
      since 01/1999 · owns 75% or more
    • P••••••• G••••• T••••• · Senior Vice President & Chief Compliance Officercontrol
      since 04/2007 · owns less than 5%
    Related persons
    Schedule D 7.A
    No related person reported.
    Office movement
    IAPD branch city; joins and departures in 12 months
    OfficeAdvisorsJoinedLeftTeams outForming
    Boston, Ma · principal400
    Offices
    Schedule D 1.F, the 25 largest
    No branch office listed.
    ADV anomalies
    1 against comparable advisers; where to look, not conclusions
    • HNW share shiftChange between filings · filing Mar 31, 2026
      HNW share of RAUM moved from 40.0% to 58.0% between the annual amendments of 2025-03-26 and 2026-03-31
      peers: independent wealth managers, $100M to $500M (5,676)
    What changed
    consecutive filings, newest first
    • Accounts · 287 to 300
      Mar 26, 2025 to Mar 31, 2026
    • HNW clients · 76 to 96
      Mar 26, 2025 to Mar 31, 2026
    • Individual clients · 69 to 81
      Mar 26, 2025 to Mar 31, 2026
    • Pooled vehicle clients · 3 to 2
      Mar 26, 2025 to Mar 31, 2026
    • Assets in custody · $202M to $211M
      Mar 26, 2025 to Mar 31, 2026
    • Private funds · 2 to 1
      Mar 26, 2025 to Mar 31, 2026
    • Discretionary RAUM · $202M to $211M
      Mar 26, 2025 to Mar 31, 2026
    • HNW RAUM · $79.8M to $122M
      Mar 26, 2025 to Mar 31, 2026
    • Individual RAUM · $32.7M to $19.1M
      Mar 26, 2025 to Mar 31, 2026
    • Pension RAUM · $1.8M to $7.1M
      Mar 26, 2025 to Mar 31, 2026
    • Pooled vehicle RAUM · $85.7M to $60.1M
      Mar 26, 2025 to Mar 31, 2026
    • RAUM · $202M to $211M
      Mar 26, 2025 to Mar 31, 2026
    • HNW clients · 71 to 76
      Mar 26, 2024 to Mar 26, 2025
    • Individual clients · 43 to 69
      Mar 26, 2024 to Mar 26, 2025
    • Assets in custody · $172M to $202M
      Mar 26, 2024 to Mar 26, 2025
    • Employees · 6 to 7
      Mar 26, 2024 to Mar 26, 2025
    • Financial planning clients · unset to
      Mar 26, 2024 to Mar 26, 2025
    • Private funds · 3 to 2
      Mar 26, 2024 to Mar 26, 2025
    • Discretionary RAUM · $201M to $202M
      Mar 26, 2024 to Mar 26, 2025
    • HNW RAUM · $71.8M to $79.8M
      Mar 26, 2024 to Mar 26, 2025
    • Individual RAUM · $7.5M to $32.7M
      Mar 26, 2024 to Mar 26, 2025
    • Pension RAUM · $1.5M to $1.8M
      Mar 26, 2024 to Mar 26, 2025
    • Pooled vehicle RAUM · $118M to $85.7M
      Mar 26, 2024 to Mar 26, 2025
    • RAUM · $201M to $202M
      Mar 26, 2024 to Mar 26, 2025
    • Accounts · 292 to 287
      Mar 22, 2023 to Mar 26, 2024
    • HNW clients · 72 to 71
      Mar 22, 2023 to Mar 26, 2024
    • Individual clients · 42 to 43
      Mar 22, 2023 to Mar 26, 2024
    • Assets in custody · $158M to $172M
      Mar 22, 2023 to Mar 26, 2024
    • Discretionary RAUM · $184M to $201M
      Mar 22, 2023 to Mar 26, 2024
    • HNW RAUM · $67.6M to $71.8M
      Mar 22, 2023 to Mar 26, 2024
    • Individual RAUM · $6.3M to $7.5M
      Mar 22, 2023 to Mar 26, 2024
    • Pension RAUM · $1.1M to $1.5M
      Mar 22, 2023 to Mar 26, 2024
    • Pooled vehicle RAUM · $107M to $118M
      Mar 22, 2023 to Mar 26, 2024
    • RAUM · $184M to $201M
      Mar 22, 2023 to Mar 26, 2024
    • Accounts · 284 to 292
      Mar 30, 2022 to Mar 22, 2023
    • HNW clients · 70 to 72
      Mar 30, 2022 to Mar 22, 2023
    • Individual clients · 38 to 42
      Mar 30, 2022 to Mar 22, 2023
    • Assets in custody · $183M to $158M
      Mar 30, 2022 to Mar 22, 2023
    • Discretionary RAUM · $214M to $184M
      Mar 30, 2022 to Mar 22, 2023
    • HNW RAUM · $80.1M to $67.6M
      Mar 30, 2022 to Mar 22, 2023
    Signals
    No event on the tape.
    Across DFX
    shared identifiers only, never a name match
    How to reach
    public business contact points only, each with its source
    Business phone
    617-228-5190reportedpublished by the firm, firm site, Sep 16, 2026
    Firm profile
    linkedin.com/company/mason-capital-partners-bostonreportedpublic record, Form ADV, Sep 18, 2026
    Website
    fundamentalsfirstfund.comreportedpublic record, Form ADV, Sep 18, 2026
    Principal office phone
    617-228-5190reportedpublic record, Form ADV, Mar 31, 2026
    Provenance
    Form ADV
    SEC filing data 2011 to 2024 and the monthly roster 2025 onreportedadviserinfo.sec.gov
    Advisors
    IAPD individual compilation feed, dailyreportedadviserinfo.sec.gov
    Class
    Independent wealth managerderiveda rule over Items 5.D and 7.A
    RAUM per advisor
    $52.7Mderivedfirm RAUM over the IAPD count; not a book size
    Loaded
    Sep 14, 2026