What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
CIK: 0001384484
Total reported value
$268.1M
$268.1M
23 檔
64.1%
According to the latest 13F quarterly dataset, Mad River Investors managed an equity portfolio of $268.1M at the end of Q2 2025, spanning 23 distinct U.S. exchange-listed positions.
In Q2 2025, Mad River Investors adopted a defensive or profit-taking posture, trimming 12 positions and completely liquidating 1 holdings to manage risk exposure.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | TPL | Texas Pacific Land CORP | Stock-Energy | 44.95% | -2.11% | -0.18% | |
| 2 | GBTC | Grayscale Bitcoin Trust ETF | ETF-Crypto | 14.15% | -0.73% | -0.03% | |
| 3 | LB | Landbridge Co Llc-a | Stock-Other | 7.11% | +1.30% | +0.21% | |
| 4 | HE | Hawaiian Electric Inds | Stock-Utilities | 5.84% | -0.36% | +0.82% | |
| 5 | PBT | Permian Basin Royalty Trust | Stock-Other | 4.98% | +1.62% | +89.09% | |
| 6 | WPM | Wheaton Precious Metals CORP | Stock-Materials | 4.66% | -1.86% | -21.56% | |
| 7 | MSB | Mesabi Trust | Stock-Other | 3.17% | -0.60% | -0.35% | |
| 8 | FBTC | Fidelity Wise Origin Bitcoin | ETF-Crypto | 3.08% | -0.15% | -2.39% | |
| 9 | CCL1EUR | Carnival CORP LTD | Stock-Consumer Disc | 2.31% | -1.45% | EXIT | |
| 10 | FNV | Franco-nevada CORP | Stock-Materials | 1.77% | -0.35% | -13.48% | |
| 11 | BTC | Grayscale Bitcoin Mini ETF | ETF-Crypto | 1.67% | -0.09% | — | |
| 12 | VTI | Vanguard Total Stock Mkt ETF | ETF-Other | 1.65% | -0.08% | — | |
| 13 | ARISUSD | Aris Water Solutions Inc-a | Stock-Other | 0.94% | — | +18.16% | |
| 14 | CVEO | Civeo CORP | Stock-Other | 0.70% | — | -14.54% | |
| 15 | CBOE | Cboe Global Markets Inc | Stock-Financials | 0.70% | -0.07% | +7.48% | |
| 16 | ICE | Intercontinental Exchange In | Stock-Financials | 0.63% | -0.07% | +2.33% | |
| 17 | VIG | Vanguard Dividend Apprec ETF | ETF-Other | 0.57% | -0.08% | EXIT | |
| 18 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 0.26% | -0.02% | -38.16% | |
| 19 | RLI | Rli CORP | Stock-Financials | 0.24% | +0.01% | -16.67% | |
| 20 | AYS1 | Sandstorm Gold LTD | Stock-Other | 0.20% | — | -24.38% | |
| 21 | CACI | Caci International Inc -cl A | Stock-Tech | 0.18% | -0.08% | — | |
| 22 | RSP | Invesco S&p 500 Equal Weight | ETF-Large Cap & Growth | 0.12% | — | — | |
| 23 | EXP | Eagle Materials Inc | Stock-Materials | 0.11% | — | -41.55% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | GBTC | Grayscale Bitcoin Trust ETF | +3.9% | -0.03% | Trim |
| 2 | PBT | Permian Basin Royalty Trust | +3% | +89.09% | Add |
| 3 | FBTC | Fidelity Wise Origin Bitcoin | +0.8% | -2.39% | Trim |
| 4 | CCL1EUR | Carnival CORP LTD | +0.8% | -2.29% | Trim |
| 5 | BTC | Grayscale Bitcoin Mini ETF | +0.5% | — | Unchanged |
| 6 | VTI | Vanguard Total Stock Mkt ETF | +0.2% | — | Unchanged |
| 7 | HE | Hawaiian Electric Inds | +0.2% | +0.82% | Add |
| 8 | CBOE | Cboe Global Markets Inc | +0.1% | +7.48% | Add |
| 9 | ICE | Intercontinental Exchange In | +0.1% | +2.33% | Add |
| 10 | VIG | Vanguard Dividend Apprec ETF | +0.1% | — | Unchanged |
| 11 | CACI | Caci International Inc -cl A | +0.1% | — | Unchanged |
| 12 | RSP | Invesco S&p 500 Equal Weight | 0% | — | Unchanged |
| 13 | AYS1 | Sandstorm Gold LTD | 0% | -24.38% | Trim |
| 14 | LB | Landbridge Co Llc-a | 0% | +0.21% | Add |
| 15 | CVEO | Civeo CORP | -0.1% | -14.54% | Trim |
| 16 | RLI | Rli CORP | -0.1% | -16.67% | Trim |
| 17 | ARISUSD | Aris Water Solutions Inc-a | -0.1% | +18.16% | Add |
| 18 | FNV | Franco-nevada CORP | -0.1% | -13.48% | Trim |
| 19 | EXP | Eagle Materials Inc | -0.1% | -41.55% | Trim |
| 20 | DIS | Walt Disney Co/the | -0.1% | EXIT | Sold out |
| 21 | BRK-B | Berkshire Hathaway Inc-cl B | -0.2% | -38.16% | Trim |
| 22 | WPM | Wheaton Precious Metals CORP | -0.2% | -21.56% | Trim |
| 23 | MSB | Mesabi Trust | -0.3% | -0.35% | Trim |
| 24 | TPL | Texas Pacific Land CORP | -8.5% | -0.18% | Trim |
According to official SEC Form 13F filings, Mad River Investors reported a total U.S. public equity portfolio value of $268.1M across 23 disclosed positions in Q2 2025.
During Q2 2025, Mad River Investors's top holdings by market value included TPL (45.0%)、GBTC (14.2%)、LB (7.1%). The largest single position, TPL, represented 45.0% of total portfolio value.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including TPL, GBTC, LB) accounted for 64.1% of total reported equity market value during Q2 2025.
Top Position Liquidated / Trimmed
DIS
前期市值: $236.9K
In Q2 2025, Mad River Investors made 19 total portfolio adjustments, initiating 0 new buys, adding to 6 positions, trimming 12 holdings, and fully liquidating 1 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
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