Harbor Island Capital LLC

Q3 2026 13F-HR Holdings

Location
Topsfield, MA
Holdings as of
9/30/2026
Date filed
10/23/2026
Form type
13F-HR
Num holdings
16
Total value ($000)
$276,458
Net value change ($000)
-99,096 (-26.4%)
New positions
0
Sold out positions
0
Turnover %
0.0%
Sector allocation + QoQ delta (equities-only)
Prev filing: 7/30/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q2 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
MSFT 2,140 14.1%
HPQ 1,412 21.8%
Top Reduces (Value $000, Stocks/ETFs)
AMAT -25,879 -38.7%
LRCX -22,404 -34.7%
KLAC -18,637 -45.4%
WBD -5,595 -22.6%
CSCO -5,503 -22.7%
INTC -5,167 -32.2%
EXP -4,053 -30.5%
CMCSA -3,894 -28.9%
WFC -3,421 -16.3%
GATX -3,044 -20.6%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type