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Harbor Island Capital LLC

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13F filer, CIK 1730580, Topsfield, MA

Harbor Island Capital LLC reported $233,656,537 across 15 holdings for the quarter ended 2025-09-30, in a 13F-HR filed 2025-10-22. Its ten largest share positions make up 83.23% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001172661-25-004359

Period
2025-09-30
Reported value
$234M
Holdings
15
Top 10 weight
83.23%
New
0
Sold out
0

Largest buys vs the previous quarter

SecurityShares changeApprox. value
CMCSAadded+93,608$2.94M
WBDadded+3,360$65.6K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
LRCXreduced-93,675-$12.5M
AMATreduced-21,890-$4.48M
HPQreduced-56,782-$1.55M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q3 2025

Share positions as resolved from 13F-HR 0001172661-25-004359, largest first. % of portfolio is the value over $233,656,537, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
LRCXLAM RESEARCH CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 360,900 shares; 2025Q1: 355,120 shares; 2025Q2: 324,475 shares; 2025Q3: 230,800 shares 230,800$30.9M13.23%-93,675Timeline
AMATAPPLIED MATLS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 177,409 shares; 2024Q4: 177,409 shares; 2025Q1: 174,738 shares; 2025Q2: 165,520 shares; 2025Q3: 143,630 shares 143,630$29.4M12.59%-21,890Timeline
WFCWELLS FARGO & COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 279,964 shares; 2024Q4: 279,964 shares; 2025Q1: 275,593 shares; 2025Q2: 254,192 shares; 2025Q3: 254,192 shares 254,192$21.3M9.12%0Timeline
AAPLAPPLE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 97,688 shares; 2024Q4: 97,285 shares; 2025Q1: 84,515 shares; 2025Q2: 78,561 shares; 2025Q3: 78,561 shares 78,561$20M8.56%0Timeline
MSFTMICROSOFT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 42,086 shares; 2024Q4: 42,086 shares; 2025Q1: 41,264 shares; 2025Q2: 38,524 shares; 2025Q3: 38,524 shares 38,524$20M8.54%0Timeline
WBDWARNER BROS DISCOVERY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,075,860 shares; 2024Q4: 1,075,860 shares; 2025Q1: 1,054,000 shares; 2025Q2: 978,030 shares; 2025Q3: 981,390 shares 981,390$19.2M8.2%+3,360Timeline
KLACKLA CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 14,754 shares; 2024Q4: 14,754 shares; 2025Q1: 14,549 shares; 2025Q2: 13,596 shares; 2025Q3: 13,596 shares 13,596$14.7M6.28%0Timeline
GATXGATX CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 91,800 shares; 2024Q4: 91,800 shares; 2025Q1: 90,259 shares; 2025Q2: 83,396 shares; 2025Q3: 83,396 shares 83,396$14.6M6.24%0Timeline
CSCOCISCO SYS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 223,448 shares; 2024Q4: 223,448 shares; 2025Q1: 220,279 shares; 2025Q2: 205,951 shares; 2025Q3: 205,951 shares 205,951$14.1M6.03%0Timeline
NKENIKE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 79,090 shares; 2025Q2: 149,030 shares; 2025Q3: 149,030 shares 149,030$10.4M4.45%0Timeline
EXPEAGLE MATLS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 45,491 shares; 2024Q4: 45,491 shares; 2025Q1: 44,771 shares; 2025Q2: 42,920 shares; 2025Q3: 42,920 shares 42,920$10M4.28%0Timeline
CMCSACOMCAST CORP NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 171,893 shares; 2024Q4: 171,893 shares; 2025Q1: 238,173 shares; 2025Q2: 216,793 shares; 2025Q3: 310,401 shares 310,401$9.75M4.17%+93,608Timeline
HPQHP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 285,998 shares; 2024Q4: 353,050 shares; 2025Q1: 387,455 shares; 2025Q2: 352,188 shares; 2025Q3: 295,406 shares 295,406$8.04M3.44%-56,782Timeline
BACBANK OF AMER CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 170,106 shares; 2024Q4: 170,106 shares; 2025Q1: 167,296 shares; 2025Q2: 145,981 shares; 2025Q3: 145,981 shares 145,981$7.53M3.22%0Timeline
INTCINTEL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 129,118 shares; 2024Q4: 128,408 shares; 2025Q1: 125,646 shares; 2025Q2: 115,051 shares; 2025Q3: 115,051 shares 115,051$3.86M1.65%0Timeline

How Q3 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001172661-25-004359 base2025-10-22acceptance time not in the bulk data set