What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
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CIK: 0001486083
Total reported value
$337.1M
$337.1M
98 檔
23.0%
During the Q1 2025 filing period, Corundum Group, Inc. (CIK: 0001486083) submitted its Form 13F report to the U.S. SEC, disclosing a tracked public equity portfolio valued at $337.1M across 98 reported positions.
In Q1 2025, Corundum Group, Inc. displayed an active expansion posture, initiating 50 new positions and adding to 0 existing holdings, outstripping position reductions.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | IWF | Ishares Russell 1000 Growth | ETF-Other | 11.22% | +0.42% | -3.06% | |
| 2 | IWD | Ishares Russell 1000 Value E | ETF-Other | 10.41% | +0.18% | -1.55% | |
| 3 | ✓ | Stock-Other | 7.03% | — | -4.50% | ||
| 4 | EFA | Ishares Msci Eafe ETF | ETF-Other | 4.93% | -0.19% | -11.14% | |
| 5 | SUSA | Ishares Esg Optimized Msci U | ETF-Other | 3.65% | -0.02% | +0.02% | |
| 6 | IWO | Ishares Russell 2000 Growth | ETF-Small Cap | 3.52% | +0.36% | — | |
| 7 | ✓ | Stock-Other | 3.37% | — | -47.42% | ||
| 8 | IWP | Ishares Russell Mid-cap Grow | ETF-Other | 3.04% | +0.08% | -2.19% | |
| 9 | IWN | Ishares Russell 2000 Value E | ETF-Small Cap | 2.97% | +0.09% | — | |
| 10 | IWS | Ishares Russell Mid-cap Valu | ETF-Other | 2.95% | -0.33% | -2.03% | |
| 11 | MSFT | Microsoft CORP | Stock-Tech | 2.87% | -0.16% | -10.14% | |
| 12 | AAPL | Apple Inc | Stock-Tech | 2.55% | +0.11% | -13.94% | |
| 13 | ✓ | Stock-Other | 1.66% | — | -35.07% | ||
| 14 | IWM | Ishares Russell 2000 ETF | ETF-Small Cap | 1.53% | +0.12% | -34.36% | |
| 15 | ✓ | Stock-Other | 1.43% | — | -34.95% | ||
| 16 | ✓ | Stock-Other | 1.29% | — | -38.27% | ||
| 17 | IWB | Ishares Russell 1000 ETF | ETF-Other | 1.22% | +0.05% | -47.59% | |
| 18 | ✓ | Stock-Other | 1.18% | — | -24.46% | ||
| 19 | ✓ | Stock-Other | 1.11% | — | +0.38% | ||
| 20 | ✓ | Stock-Other | 0.97% | — | -31.81% | ||
| 21 | IVW | Ishares S&p 500 Growth ETF | ETF-Large Cap & Growth | 0.91% | +0.05% | -22.60% | |
| 22 | ✓ | Stock-Other | 0.90% | — | -46.15% | ||
| 23 | ✓ | Stock-Other | 0.90% | — | -34.54% | ||
| 24 | IJH | Ishares Core S&p Midcap ETF | ETF-Other | 0.89% | — | +2.61% | |
| 25 | ✓ | Stock-Other | 0.86% | — | -35.60% | ||
| 26 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 0.84% | +0.02% | -25.34% | |
| 27 | BMY | Bristol-myers Squibb Co | Stock-Healthcare | 0.74% | -0.08% | -41.80% | |
| 28 | ✓ | Stock-Other | 0.73% | — | -33.56% | ||
| 29 | ✓ | Stock-Other | 0.70% | — | -21.69% | ||
| 30 | ✓ | Stock-Other | 0.69% | — | -11.20% | ||
| 31 | HD | Home Depot Inc | Stock-Consumer Disc | 0.67% | -0.02% | -27.87% | |
| 32 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 0.64% | +0.06% | -46.60% | |
| 33 | ✓ | Stock-Other | 0.63% | — | -36.11% | ||
| 34 | ✓ | Stock-Other | 0.62% | — | -31.54% | ||
| 35 | ECL | Ecolab Inc | Stock-Materials | 0.62% | -0.03% | -32.87% | |
| 36 | ✓ | Stock-Other | 0.61% | — | -26.71% | ||
| 37 | JNJ | Johnson & Johnson | Stock-Healthcare | 0.60% | -0.06% | -8.06% | |
| 38 | ✓ | Stock-Other | 0.58% | — | -30.93% | ||
| 39 | USB | US Bancorp | Stock-Financials | 0.57% | +0.02% | -35.81% | |
| 40 | ✓ | Stock-Other | 0.56% | — | -43.45% | ||
| 41 | IVE | Ishares S&p 500 Value ETF | ETF-Large Cap & Growth | 0.56% | -0.03% | — | |
| 42 | ABT | Abbott Laboratories | Stock-Healthcare | 0.56% | -0.08% | -31.85% | |
| 43 | ✓ | Stock-Other | 0.56% | — | -34.55% | ||
| 44 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 0.53% | -0.03% | -42.75% | |
| 45 | MCD | Mcdonald's CORP | Stock-Consumer Disc | 0.52% | -0.08% | -35.66% | |
| 46 | CAT | Caterpillar Inc | Stock-Industrials | 0.52% | +0.25% | -41.31% | |
| 47 | ✓ | Stock-Other | 0.52% | — | -44.13% | ||
| 48 | BAC | Bank Of America CORP | Stock-Financials | 0.49% | +0.02% | -31.34% | |
| 49 | HON | Honeywell International Inc | Stock-Industrials | 0.47% | -0.28% | EXIT | |
| 50 | ✓ | Stock-Other | 0.45% | — | -3.65% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | IWF | Ishares Russell 1000 Growth | — | NEW | New buy |
| 2 | IWD | Ishares Russell 1000 Value E | — | NEW | New buy |
| 3 | ✓ | — | NEW | New buy | |
| 4 | EFA | Ishares Msci Eafe ETF | — | NEW | New buy |
| 5 | SUSA | Ishares Esg Optimized Msci U | — | NEW | New buy |
| 6 | IWO | Ishares Russell 2000 Growth | — | NEW | New buy |
| 7 | ✓ | — | NEW | New buy | |
| 8 | IWP | Ishares Russell Mid-cap Grow | — | NEW | New buy |
| 9 | IWN | Ishares Russell 2000 Value E | — | NEW | New buy |
| 10 | IWS | Ishares Russell Mid-cap Valu | — | NEW | New buy |
| 11 | MSFT | Microsoft CORP | — | NEW | New buy |
| 12 | AAPL | Apple Inc | — | NEW | New buy |
| 13 | ✓ | — | NEW | New buy | |
| 14 | IWM | Ishares Russell 2000 ETF | — | NEW | New buy |
| 15 | ✓ | — | NEW | New buy | |
| 16 | ✓ | — | NEW | New buy | |
| 17 | IWB | Ishares Russell 1000 ETF | — | NEW | New buy |
| 18 | ✓ | — | NEW | New buy | |
| 19 | ✓ | — | NEW | New buy | |
| 20 | ✓ | — | NEW | New buy | |
| 21 | IVW | Ishares S&p 500 Growth ETF | — | NEW | New buy |
| 22 | ✓ | — | NEW | New buy | |
| 23 | ✓ | — | NEW | New buy | |
| 24 | IJH | Ishares Core S&p Midcap ETF | — | NEW | New buy |
| 25 | ✓ | — | NEW | New buy | |
| 26 | AMZN | Amazon.com Inc | — | NEW | New buy |
| 27 | BMY | Bristol-myers Squibb Co | — | NEW | New buy |
| 28 | ✓ | — | NEW | New buy | |
| 29 | ✓ | — | NEW | New buy | |
| 30 | ✓ | — | NEW | New buy | |
| 31 | HD | Home Depot Inc | — | NEW | New buy |
| 32 | VOO | Vanguard S&p 500 ETF | — | NEW | New buy |
| 33 | ✓ | — | NEW | New buy | |
| 34 | ✓ | — | NEW | New buy | |
| 35 | ECL | Ecolab Inc | — | NEW | New buy |
| 36 | ✓ | — | NEW | New buy | |
| 37 | JNJ | Johnson & Johnson | — | NEW | New buy |
| 38 | ✓ | — | NEW | New buy | |
| 39 | USB | US Bancorp | — | NEW | New buy |
| 40 | ✓ | — | NEW | New buy | |
| 41 | IVE | Ishares S&p 500 Value ETF | — | NEW | New buy |
| 42 | ABT | Abbott Laboratories | — | NEW | New buy |
| 43 | ✓ | — | NEW | New buy | |
| 44 | BRK-B | Berkshire Hathaway Inc-cl B | — | NEW | New buy |
| 45 | MCD | Mcdonald's CORP | — | NEW | New buy |
| 46 | CAT | Caterpillar Inc | — | NEW | New buy |
| 47 | ✓ | — | NEW | New buy | |
| 48 | BAC | Bank Of America CORP | — | NEW | New buy |
| 49 | HON | Honeywell International Inc | — | NEW | New buy |
| 50 | ✓ | — | NEW | New buy |
According to official SEC Form 13F filings, Corundum Group, Inc. reported a total U.S. public equity portfolio value of $337.1M across 98 disclosed positions in Q1 2025.
During Q1 2025, Corundum Group, Inc.'s top holdings by market value included IWF (11.2%)、IWD (10.4%)、 (7.0%). The largest single position, IWF, represented 11.2% 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 IWF, IWD, ) accounted for 23.0% of total reported equity market value during Q1 2025.
Top New Position Initiated
IWF
市值: $23.4M
In Q1 2025, Corundum Group, Inc. made 50 total portfolio adjustments, initiating 50 new buys, adding to 0 positions, trimming 0 holdings, and fully liquidating 0 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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