Harbor Advisors LLC — 13F Holdings & Portfolio
CIK 1687156 · latest 13F-HR filed 2026-07-28
Harbor Advisors LLC manages $795.1M in 13F-reported U.S. long-equity assets across 194 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are EQIX (31.36%), MU (7.26%), GOOGL (6.54%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 10 new positions, exited 13, added to 99, and trimmed 49.
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.
WEST PALM BEACH, FL 33401
$795.1M
Long-equity book
194
Distinct positions
2026-06-30
Filed 2026-07-28
+10 / −13 / ↑99 / ↓49
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- MICRON TECHNOLOGY INC$40.5M +235.0%
- EQUINIX INC$14.9M +6.3%
- ALPHABET INC$10.2M +24.3%
- APPLE INC$5.3M +14.0%
- NEBIUS GROUP N.V.$4.8M +166.2%
Top Trims
- CANADIAN NAT RES LTD MED TER-$4.6M -18.9%
- T-MOBILE US INC-$873.5K -20.1%
- CHARTER COMMUNICATIONS INC-$644.2K -34.1%
- CHEVRON CORPORATION-$517.2K -19.9%
- EOG RES INC-$384.4K -10.3%
New Positions
- MCDONALDS CORP$540.6K
- TRULIEVE CANNABIS CORP$484.2K
- THIRD COAST BANCSHARES INC$404.0K
- SERVICENOW INC$297.8K
- NAVITAS SEMICONDUCTOR CORP$268.8K
Exited Positions
- COTERRA ENERGY INC$2.1M
- EXXON MOBIL CORP$1.4M
- LIBERTY GLOBAL LTD$285.3K
- VERSANT MEDIA GROUP INC$277.6K
- HCA HEALTHCARE INC$236.6K
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 | EQUINIX INC | EQIX | 29444U700 | $249.4M | 31.36% | 239,240 | SH |
| 2 | MICRON TECHNOLOGY INC | MU | 595112103 | $57.7M | 7.26% | 50,000 | SH |
| 3 | ALPHABET INC | GOOGL | 02079K305 | $52.0M | 6.54% | 145,600 | SH |
| 4 | APPLE INC | AAPL | 037833100 | $42.9M | 5.40% | 148,400 | SH |
| 5 | AMAZON COM INC | AMZN | 023135106 | $36.5M | 4.59% | 153,200 | SH |
| 6 | NVIDIA CORPORATION | NVDA | 67066G104 | $36.0M | 4.53% | 180,000 | SH |
| 7 | CANADIAN NAT RES LTD MED TER | CNQ | 136385101 | $19.7M | 2.48% | 499,800 | SH |
| 8 | INTERACTIVE BROKERS GROUP IN | IBKR | 45841N107 | $16.3M | 2.05% | 186,832 | SH |
| 9 | FTAI AVIATION LTD | FTAI | G3730V105 | $15.4M | 1.94% | 57,000 | SH |
| 10 | MASTERCARD INCORPORATED | MA | 57636Q104 | $13.4M | 1.68% | 26,000 | SH |
| 11 | MICROSOFT CORP | MSFT | 594918104 | $9.9M | 1.24% | 26,500 | SH |
| 12 | FERGUSON ENTERPRISES INC | FERG | 31488V107 | $9.8M | 1.23% | 41,255 | SH |
| 13 | BANK OF N T BUTTERFIELD & SO | NTB | G0772R208 | $8.6M | 1.08% | 144,908 | SH |
| 14 | JPMORGAN CHASE & CO | JPM | 46625H100 | $7.9M | 0.99% | 24,148 | SH |
| 15 | META PLATFORMS INC | META | 30303M102 | $7.8M | 0.98% | 13,800 | SH |
| 16 | NEBIUS GROUP N.V. | NBIS | N97284108 | $7.6M | 0.96% | 27,600 | SH |
| 17 | ALPHABET INC | GOOG | 02079K107 | $7.1M | 0.89% | 20,000 | SH |
| 18 | PJT PARTNERS INC | PJT | 69343T107 | $6.3M | 0.79% | 41,519 | SH |
| 19 | NUCOR CORP | NUE | 670346105 | $6.2M | 0.78% | 27,992 | SH |
| 20 | S&P GLOBAL INC | SPGI | 78409V104 | $5.6M | 0.70% | 13,667 | SH |
| 21 | DIGITAL RLTY TR INC | DLR | 253868103 | $5.5M | 0.69% | 30,552 | SH |
| 22 | EVERCORE INC | EVR | 29977A105 | $5.1M | 0.64% | 15,000 | SH |
| 23 | CROWDSTRIKE HLDGS INC | CRWD | 22788C105 | $4.8M | 0.60% | 6,250 | SH |
| 24 | BLACKROCK INC | BLK | 09290D101 | $3.8M | 0.47% | 3,924 | SH |
| 25 | WALMART INC | WMT | 931142103 | $3.7M | 0.47% | 33,000 | SH |
| 26 | MOODYS CORP | MCO | 615369105 | $3.6M | 0.46% | 8,000 | SH |
| 27 | T-MOBILE US INC | TMUS | 872590104 | $3.5M | 0.44% | 20,650 | SH |
| 28 | PALO ALTO NETWORKS INC | PANW | 697435105 | $3.4M | 0.43% | 10,000 | SH |
| 29 | EOG RES INC | EOG | 26875P101 | $3.4M | 0.42% | 25,900 | SH |
| 30 | HOULIHAN LOKEY INC | HLI | 441593100 | $3.4M | 0.42% | 25,000 | SH |
| 31 | METROPOLITAN BK HLDG CORP | MCB | 591774104 | $3.1M | 0.39% | 31,500 | SH |
| 32 | GE AEROSPACE | GE | 369604301 | $2.6M | 0.33% | 7,000 | SH |
| 33 | MARTIN MARIETTA MATLS INC | MLM | 573284106 | $2.6M | 0.33% | 4,500 | SH |
| 34 | PNC FINL SVCS GROUP INC | PNC | 693475105 | $2.6M | 0.32% | 10,444 | SH |
| 35 | DANAHER CORP DEL | DHR | 235851102 | $2.4M | 0.30% | 12,505 | SH |
| 36 | AKAMAI TECHNOLOGIES INC | AKAM | 00971T101 | $2.4M | 0.30% | 20,000 | SH |
| 37 | HILTON WORLDWIDE HLDGS INC | HLT | 43300A203 | $2.4M | 0.30% | 7,133 | SH |
| 38 | ADVANCED MICRO DEVICES INC | AMD | 007903107 | $2.3M | 0.29% | 4,000 | SH |
| 39 | FB FINL CORP | FBK | 30257X104 | $2.3M | 0.28% | 40,799 | SH |
| 40 | DEVON ENERGY CORP NEW | DVN | 25179M103 | $2.2M | 0.27% | 52,360 | SH |
| 41 | POPULAR INC | BPOP | 733174700 | $2.1M | 0.27% | 13,000 | SH |
| 42 | CHEVRON CORPORATION | CVX | 166764100 | $2.1M | 0.26% | 12,572 | SH |
| 43 | HOME DEPOT INC | HD | 437076102 | $1.9M | 0.24% | 5,500 | SH |
| 44 | FOX CORP | FOX | 35137L204 | $1.9M | 0.24% | 41,265 | SH |
| 45 | GALLAGHER ARTHUR J & CO | AJG | 363576109 | $1.9M | 0.24% | 8,375 | SH |
| 46 | EQUIFAX INC | EFX | 294429105 | $1.9M | 0.24% | 12,000 | SH |
| 47 | APOLLO GLOBAL MGMT INC | APO | 03769M106 | $1.9M | 0.24% | 15,947 | SH |
| 48 | CUSTOMERS BANCORP INC | CUBI | 23204G100 | $1.8M | 0.23% | 23,000 | SH |
| 49 | GDS HLDGS LTD | GDS | 36165L108 | $1.8M | 0.23% | 60,000 | SH |
| 50 | EVEREST GROUP LTD | EG | G3223R108 | $1.8M | 0.22% | 5,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-07-28 | $795.1M | 194 | 0001214659-26-009081 |
| 2026-03-31 | 2026-05-07 | $692.2M | 197 | 0001214659-26-005743 |
| 2025-12-31 | 2026-01-30 | $665.8M | 193 | 0001214659-26-000986 |