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| MRM-Horizon Advisors LLC
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| CRD # | 130585 |
| SEC # | 801-62991 |
| CIK # | 0001384484 |
| AUM | 403.5 M (2026-03-27) |
| Employees | 6 (33% Investors, 0% Brokers) |
| Fees | |
| Minimum | |
| Phone | 617-728-0333 |
| Address | 84 State Street, Suite 1060 Boston, MA 02109 |
| Source | [IAPD] [EDGAR] [Website] |
| Total AUM ($M) |
|---|
| Sector | Form 13F Holdings | Value ($M) | |
|---|---|---|---|
| Texas Pacific Land Corp | 135.3 | ||
| Hawaiian Electric Industries Inc | 20.2 | ||
| Grayscale Bitcoin Trust BTC | 19.0 | ||
| Landbridge Co LLC | 18.4 | ||
| Wheaton Precious Metals Corp | 11.7 | ||
| Mesabi Trust | 10.1 | ||
| Waterbridge Infrastructure LLC | 7.3 | ||
| Franco Nevada Corp | 5.8 | ||
| Fidelity Wise Origin Bitcoin Fund | 4.2 | ||
| Carnival Corp | 4.0 | ||
| View All | |||
| Holdings by Sector ($M) |
|---|
| Type | Form D Funds | Date | Sold | AUM |
|---|---|---|---|---|
| HF | Long Point Investors Series C | 2025-03-26 | 1.6 M | |
| HF | Long Point Investors - Senvest Partners Series | 2016-03-30 | 2.0 M | |
| PE | LPI Private Equity Series | 2013-11-20 | 0.2 M | |
| HF | Long Point Investors - Abrams Bison LP Series | 2012-03-30 | 5.6 M | |
| HF | Long Point Investors - Appaloosa Investment Limited Partnership I Series | 2012-03-30 | 3.8 M | |
| PE | Long Point Investors Brazos Class | 2012-03-30 | 0.1 M | |
| HF | Long Point Investors - Discontinuing Series | 2012-03-30 | 0.8 M | |
| HF | Long Point Investors LP | 2012-03-30 | 1.2 M | |
| HF | Long Point Investors - Mad River Managed Series | 2012-03-30 | 68.1 M | |
| HF | Long Point Investors - Perry Partners LP Series | 2012-03-30 | 0.5 M | |
| View All | ||||
| AUM Breakdown | Accounts | AUM ($M) |
|---|---|---|
| By Client Type | ||
| (a) Individuals (other than high net worth individuals) | 21 | 18.7 |
| (b) Individuals (high net worth individuals) | 68 | 269.2 |
| (c) Banking or thrift institutions | 0 | 0.0 |
| (d) Investment companies | 0 | 0.0 |
| (e) Business development companies | 0 | 0.0 |
| (f) Pooled investment vehicles | 2 | 69.7 |
| (g) Pension and profit sharing plans | 4 | 19.5 |
| (h) Charitable organizations | 0 | 0.0 |
| (i) State or municipal government entities | 0 | 0.0 |
| (j) Other investment advisers | 0 | 0.0 |
| (k) Insurance companies | 0 | 0.0 |
| (l) Sovereign wealth funds and foreign official institutions | 0 | 0.0 |
| (m) Corporations or other businesses not listed above | 6 | 26.4 |
| (n) Other | 0 | 0.0 |
| Total | 140 | 403.5 |
| By Discretionary | ||
| Discretionary | 140 | 403.5 |
| Non-Discretionary | 0 | 0.0 |
| Total | 140 | 403.5 |
| By Non-United States Persons | ||
| Non-United States Persons | 1.2 | |
| United States Persons | 402.3 | |
| Total | 140 | 403.5 |
| Form D Directors | Role | # Filings | # Firms | 2011 - 2026 |
|---|---|---|---|---|
| Tdf Management Ltd | Director | 4 | 3 | |
| Richard Silver | Director | 6 | 2 | |
| DBA Mad River Investors MRM-Horizon Advisors LLC | Promoter | 2 | 2 | |
| Tdf Management Ltd | Director | 1 | 1 |
| EDGAR Form | CIK | 2011 - 2026 |
|---|---|---|
| 13F-HR | [0001384484] | |
| SC 13G | [0001384484] |
| Form 13D/13G Filer | Form 13D/13G Subject | Filed |
|---|---|---|
| Mad River Investors | Atlas Energy Group LLC | [2017-04-24] |
| Mad River Investors | Atlas Energy Group LLC | [2017-04-24] |
| Mad River Investors | Atlas Energy Group LLC | [2017-02-14] |
| Firm Profile (Form ADV) | |
|---|---|
| Discretionary AUM | $0.2B |
| Serves | Institutional, Retail |
| Fund Types | Hedge Fund, Private Equity |
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