Harbor Island Capital LLC — 13F Holdings & Portfolio
CIK 1730580 · latest 13F-HR filed 2026-07-30
Harbor Island Capital LLC manages $375.6M in 13F-reported U.S. long-equity assets across 16 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are AMAT (17.81%), LRCX (17.18%), KLAC (10.92%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 0 new positions, exited 0, added to 11, and trimmed 1.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
UNIT 302
TOPSFIELD, MA 01983
$375.6M
Long-equity book
16
Distinct positions
2026-06-30
Filed 2026-07-30
+0 / −0 / ↑11 / ↓1
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- LAM RESEARCH CORP$30.4M +89.0%
- APPLIED MATLS INC$26.5M +65.7%
- KLA CORP$21.0M +104.9%
- INTEL CORP$11.0M +216.4%
- CISCO SYS INC$8.2M +51.4%
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | APPLIED MATLS INC | AMAT | 038222105 | $66.9M | 17.81% | 92,498 | SH |
| 2 | LAM RESEARCH CORP | LRCX | 512807306 | $64.5M | 17.18% | 148,878 | SH |
| 3 | KLA CORP | KLAC | 482480100 | $41.0M | 10.92% | 135,960 | SH |
| 4 | WARNER BROS DISCOVERY INC | WBD | 934423104 | $24.7M | 6.59% | 927,890 | SH |
| 5 | CISCO SYS INC | CSCO | 17275R102 | $24.2M | 6.44% | 205,951 | SH |
| 6 | APPLE INC | AAPL | 037833100 | $22.7M | 6.05% | 78,561 | SH |
| 7 | WELLS FARGO & CO | WFC | 949746101 | $21.0M | 5.59% | 254,192 | SH |
| 8 | INTEL CORP | INTC | 458140100 | $16.1M | 4.28% | 115,051 | SH |
| 9 | MICROSOFT CORP | MSFT | 594918104 | $15.2M | 4.05% | 40,824 | SH |
| 10 | NIKE INC | NKE | 654106103 | $14.8M | 3.95% | 361,489 | SH |
| 11 | GATX CORP | GATX | 361448103 | $14.8M | 3.93% | 83,396 | SH |
| 12 | COMCAST CORP NEW | CMCSA | 20030N101 | $13.5M | 3.59% | 549,531 | SH |
| 13 | EAGLE MATLS INC | EXP | 26969P108 | $13.3M | 3.54% | 59,157 | SH |
| 14 | BANK OF AMER CORP | BAC | 060505104 | $8.3M | 2.21% | 145,981 | SH |
| 15 | VERSANT MEDIA GROUP INC | VSNT | 925283103 | $8.0M | 2.12% | 221,266 | SH |
| 16 | HP INC | HPQ | 40434L105 | $6.5M | 1.73% | 295,406 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-07-30 | $375.6M | 16 | 0001172661-26-002936 |
| 2026-03-31 | 2026-05-12 | $269.2M | 16 | 0001172661-26-001706 |
| 2025-12-31 | 2026-01-23 | $260.8M | 15 | 0001172661-26-000293 |
| 2025-09-30 | 2025-10-22 | $233.7M | 15 | 0001172661-25-004359 |
| 2024-09-30 | 2024-10-17 | $211.4M | 15 | 0001172661-24-004296 |
| 2024-06-30 | 2024-07-25 | $232.2M | 15 | 0001172661-24-002920 |
| 2024-03-31 | 2024-04-18 | $218.3M | 15 | 0001172661-24-001891 |