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: 0001730580
Total reported value
$375.6M
$375.6M
15 檔
31.3%
According to the latest 13F quarterly dataset, Harbor Island Capital LLC managed an equity portfolio of $375.6M at the end of Q2 2025, spanning 15 distinct U.S. exchange-listed positions.
During Q2 2025, Harbor Island Capital LLC's portfolio maintained high stability with no major positional turnover, reflecting a continuous long-term holding approach.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | LRCX | Lam Research CORP | Stock-Tech | 14.82% | +4.50% | -8.63% | |
| 2 | AMAT | Applied Materials Inc | Stock-Tech | 14.22% | +2.82% | -5.28% | |
| 3 | WFC | Wells Fargo & Co | Stock-Financials | 9.56% | -1.93% | -7.77% | |
| 4 | MSFT | Microsoft CORP | Stock-Tech | 8.99% | -1.25% | -6.64% | |
| 5 | AAPL | Apple Inc | Stock-Tech | 7.56% | -1.36% | -7.04% | |
| 6 | CSCO | Cisco Systems Inc | Stock-Tech | 6.70% | +0.50% | -6.50% | |
| 7 | GATX | Gatx CORP | Stock-Industrials | 6.01% | -1.36% | -7.60% | |
| 8 | KLAC | Kla CORP | Stock-Tech | 5.71% | +3.48% | -6.55% | |
| 9 | WBD | Warner Bros Discovery Inc | Stock-Comm Services | 5.26% | -3.32% | -7.21% | |
| 10 | NKE | Nike Inc -cl B | Stock-Consumer Disc | 4.97% | -0.82% | +88.43% | |
| 11 | EXP | Eagle Materials Inc | Stock-Materials | 4.07% | -0.62% | -4.13% | |
| 12 | HPQ | Hp Inc | Stock-Tech | 4.04% | -0.38% | -9.10% | |
| 13 | CMCSA | Comcast Corp-class A | Stock-Comm Services | 3.63% | -1.53% | -8.98% | |
| 14 | BAC | Bank Of America CORP | Stock-Financials | 3.24% | -0.43% | -12.74% | |
| 15 | INTC | Intel CORP | Stock-Tech | 1.21% | +2.39% | -8.43% |
According to official SEC Form 13F filings, Harbor Island Capital LLC reported a total U.S. public equity portfolio value of $375.6M across 15 disclosed positions in Q2 2025.
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 LRCX, AMAT, WFC) accounted for 31.3% of total reported equity market value during Q2 2025.
During Q2 2025, Harbor Island Capital LLC's top holdings by market value included LRCX (14.8%)、AMAT (14.2%)、WFC (9.6%). The largest single position, LRCX, represented 14.8% of total portfolio value.
In Q2 2025, Harbor Island Capital LLC made 0 total portfolio adjustments, initiating 0 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.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.