AUMdb

Mrm Horizon Advisors, Llc

SEC-registered Wealth Manager · Small ($100M–$1B) CRD 130585 · SEC file 801-62991 · Boston, MA · WWW.MRIVER.COM
☆ Save with Pro ADV data as of Jul 07, 2026
Regulatory AUM
$404M
Discretionary
$404M
Clients
101
Avg AUM / client
$4.0M
Accounts
140
Employees
6

AUM over time

$195M $404M
Mar 30, 2012 Jul 7, 2026

Reported AUM from Form ADV filings, plotted by filing date · as of Jul 07, 2026

Who they serve

Client typeClientsAUM% of AUM
Individuals (non-high net worth) 21 $18.7M 4.63%
High net worth individuals 68 $269M 66.7%
Pooled investment vehicles (non-investment companies) 2 $69.7M 17.3%
Pension and profit sharing plans 4 $19.5M 4.83%
Corporations and other businesses 6 $26.4M 6.55%

Private funds (2)

Reported in Form ADV Section 7.B.(1), filing of Mar 2024 · $54.1M combined gross assets

FundTypeDomicileGross assetsOwners
Long Point Investors Mad River Managed Series Hedge Fund Delaware $53.6M 31
Lpi Private Equity Series Private Equity Fund Delaware $493K 15

People (5)

roster as of Jul 20, 2026
NameRole / titleCredentialsWith firm sinceOwnership
Richard William Silver Managing Member Nov 1997 (29y) 75% or more
Silver, Stephen Trustee, Lindsay Silver 2005 Trust Dec 2005 (21y) GP / trustee / elected manager of Lindsay Silver 2005 Trust (indirect)
Stephen Charles Carluccio Trustee, Lindsay Silver 2005 Trust Dec 2005 (21y) Less than 5%
Michael Thomas Gagne Registered representative Jan 2026 (1y)
Joshua Michael Stewart Registered representative Jan 2026 (1y)

Entity owners (Schedule A/B)

EntityTitle / statusSinceSch.Ownership
Lindsay Silver 2005 Trust Member Dec 2005 A Less than 5%

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.

Private funds (2, $54.1M gross assets)

FundTypeGross assetsMin. investmentOwners
Long Point Investors Mad River Managed Series Hedge Fund $53.6M $250K 31
Lpi Private Equity Series Private Equity Fund $493K $0 15

From Form ADV Section 7.B private fund reporting.

Documents (1 archived)

FormPeriodSize
Form ADV (full filing) 07/07/2026 1.33 MB View · PDF · Source ↗

Archived copies of the firm's regulatory filings, versioned by content hash.

Disciplinary disclosures

No disciplinary events reported on the firm's latest Form ADV filing.

How they charge

  • Percentage of assets under management
  • Performance-based fees

Services

  • Portfolio management for individuals/small businesses
  • Portfolio management for pooled investment vehicles
  • Portfolio management for businesses/institutional clients
  • Selection of other advisers

Custody

Reported custodians

Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).

Firm reports having 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: Jul 07, 2026.

View current Form ADV (SEC/IAPD) ↗