Equal-WT
WhaleScore 2.0
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Harbor Island Capital is based out of Topsfield. Harbor Island Capital is a large advisory firm with 15 clients and discretionary assets under management (AUM) of $226,903,079 (Form ADV from 2025-02-20). Their last reported 13F filing for Q1 2025 included $201,901,429 in managed 13F securities
and a top 10 holdings concentration of 81.63%. Harbor Island Capital's largest holding is Lam Research Corp with shares held of 355,120. Whalewisdom has at least 30 13F filings
Investment Strategy
The Company relies on internally generated research derived from various sources, including annual reports, SEC filings, corporate press releases, inspections, conversations with firms and competitors, financial publications, and potentially research material prepared by others. The research process involves a qualitative assessment of the security, considering factors such as management integrity and vision, the firm's ability to execute its strategy, industry attractiveness, and the potential for acceptable returns for stakeholders.
The Company's investment strategy could lose money over short or long periods. Performance could be negatively impacted by stock market risk and non-diversification risk. Clients bear trading costs and custodial fees in addition to the Company’s investment management fees. Accounts invested in mutual funds pay a separate layer of management, trading, and administrative expenses.
Owners
- FORTIN, PAUL, DAVID - OWNER/MEMBER/CHIEF COMPLIANCE OFFICER Click on the Ownership/Private Fund Data tab for more details.
Other Contact Information
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2025-03-31
Top Buys (13F)
Name | % Change |
---|---|
NKE NIKE Inc | 2.49% |
CMCSA Comcast Corp. Class | 1.27% |
HPQ HP Inc | -0.2% |

2025-03-31
Top Sells (13F)
Name | % Change |
---|---|
AAPL Apple Inc | 2.36% |
AMAT Applied Materials In | 1.25% |
MSFT Microsoft Corporatio | 0.82% |
HPE Hewlett Packard Ente | 0.6% |
EXP Eagle Materials Inc | 0.45% |

2025-03-31
13F Holdings Summary
Name | $ Change |
---|---|
LRCX Lam Research Corp | 12.79% |
AMAT Applied Materials In | 12.56% |
WFC Wells Fargo & Co | 9.8% |
AAPL Apple Inc | 9.3% |
MSFT Microsoft Corporatio | 7.67% |

2025-03-31
13F Activity
Market Value | $202m, Prior: $209m |
Inflows (Outflows) as % of Total MV | +1.4821% |
New Purchases | 1 stocks |
Added To | 2 stocks |
Sold out of | 0 stocks |
Reduced holdings in | 13 stocks |
Top 10 Holdings % | 81.63% |
Turnover %[1] | 6.25% |
Turnover Alt %[2] | 2.9% |
Time Held Top 20 | 25.0625 quarters |
Time Held Top 10 | 19.9 quarters |
Time Held All | 25.06 quarters |
[1]: Turnover is calculated by taking the # of new holdings (initial purchases) + the # of positions sold out of (not just reduced) divided by the total # of holdings for the quarter.
[2]: Alt Turnover is calculated by taking either the total MV of new purchases or the MV of securities sold, whichever is less, divided by the total MV of the fund.

2025-03-31
13F Sector Allocation Over Time
limited to past 4 quarters. Subscribe to see all available data

2025-03-31
Analysis

Top 20 equal-weighted holdings. Performance numbers calculated through 2025-03-31