Harbor Advisors LLC

In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 12, 2025), Harbor Advisors LLC reported 190 stock positions worth $648.4 million. Its top holding was Equinix (EQIX) at 30.5% of the portfolio, followed by Alphabet Class A (GOOGL, 5.8%) and Apple (AAPL, 5.8%). Compared with Q2 2025, it opened 10 new positions, sold out of 10, added to 8 and reduced 4. The biggest buy was Nebius (NBIS, shares +0%) and the biggest sale an exit from Hess (HES).

Most Recent 13F
Q2 2026
Location
West Palm Beach, FL
CIK
0001687156
Portfolio Value
$648.4M (Q3 2025)
SEC Filing
0001214659-25-016246 ↗ filed Nov 12, 2025

Holdings Value

0$200.0M$400.0M$600.0M$800.0M Q1 2024: $544.4M Q1 2024 Q2 2024: $545.4M Q2 2024 Q3 2024: $597.5M Q3 2024 Q4 2024: $636.5M Q4 2024 Q1 2025: $576.0M Q1 2025 Q2 2025: $611.0M Q2 2025 Q3 2025: $648.4M $648.4M Q3 2025 Q4 2025: $665.8M Q4 2025 Q1 2026: $692.2M Q1 2026 Q2 2026: $795.1M Q2 2026

Holdings 190 stocks · $648.4M
EQIX Equinix Inc. 30.54% 252,790 $198.0M No change
GOOGL Alphabet Inc. Class A 5.83% 155,600 $37.8M No change
AAPL Apple Inc. 5.83% 148,400 $37.8M No change
AMZN Amazon.com Inc. 5.24% 154,700 $34.0M No change
NVDA Nvidia Corp. 5.18% 180,000 $33.6M No change
CNQ Canadian Natural Resources 2.46% 499,800 $16.0M No change
MA Mastercard Inc. Class A 2.28% 26,000 $14.8M No change
MSFT Microsoft Corp. 2.08% 26,000 $13.5M No change
IBKR Interactive Brokers Gro Class A 1.98% 186,832 $12.9M No change
FTAI Ftai Aviation Ltd. 1.47% 57,000 $9.5M No change
META Meta Platforms Inc. Class A 1.45% 12,800 $9.4M No change
FERG Ferguson Enterprises Inc. 1.43% 41,255 $9.3M No change
MU Micron Technology Inc. 1.25% 48,500 $8.1M No change
JPM JPMorgan Chase & Co. 1.17% 24,148 $7.6M No change
PJT PJT Partners Inc. Class A 1.14% 41,519 $7.4M No change
NTB Bank of N.T. Butterfield&son 1.03% 155,408 $6.7M No change
SPGI S&P Global Inc. 1.03% 13,667 $6.7M No change
HLI Houlihan Lokey Inc. 0.79% 25,000 $5.1M No change
EVR Evercore Inc. Class A 0.78% 15,000 $5.1M No change
TMUS T-Mobile US Inc. 0.76% 20,650 $4.9M No change
GOOG Alphabet Inc. Class C 0.75% 20,000 $4.9M No change
BLK BlackRock Inc. 0.71% 3,924 $4.6M No change
DLR Digital Realty Trust Inc. 0.68% 25,552 $4.4M No change
CHTR Charter Communications Inc. Class A 0.68% 15,942 $4.4M No change
MCO Moody's Corp. 0.59% 8,000 $3.8M No change
NUE Nucor Corp. 0.58% 27,992 $3.8M No change
WMT Walmart Inc. 0.52% 33,000 $3.4M No change
NBIS Nebius Group NV 0.48% 27,600 $3.1M Add +0.4%
EFX Equifax Inc. 0.47% 12,000 $3.1M No change
CRWD CrowdStrike Holdings Inc. Class A 0.47% 6,250 $3.1M No change
EOG EOG Resources Inc. 0.45% 25,900 $2.9M No change
MLM Martin Marietta Materials 0.44% 4,500 $2.8M No change
AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO 0.40% 8,375 $2.6M No change
PANW Palo Alto Networks Inc. 0.39% 12,500 $2.5M No change
DHR Danaher Corp. 0.38% 12,505 $2.5M No change
FOX Fox Corp. Class B 0.36% 41,265 $2.4M Reduce 0.0%
MCB Metropolitan Bank Holding Co. 0.36% 31,500 $2.4M No change
BX Blackstone Inc. 0.36% 13,700 $2.3M No change
ARES Ares Management Corp. Class A 0.36% 14,500 $2.3M No change
FBK FB Financial Corp. filed as FB FINL CORP 0.35% 40,799 $2.3M Add +9.1%
BRO Brown & Brown Inc. 0.35% 24,000 $2.3M No change
HD Home Depot Inc. 0.34% 5,500 $2.2M No change
APO Apollo Global Management Inc. 0.33% 15,947 $2.1M Reduce -0.0%
ADBE Adobe Inc. 0.33% 6,000 $2.1M No change
GE General Electric filed as GE AEROSPACE 0.32% 7,000 $2.1M Add +16.7%
PNC PNC Financial Services Group 0.32% 10,444 $2.1M No change
FNF Fidelity National Financial 0.31% 33,409 $2.0M No change
PLTR Palantir Technologies Inc. Class A 0.31% 11,000 $2.0M No change
CVX Chevron Corp. 0.30% 12,572 $2.0M Add +187.6%
CSGP Costar Group Inc. 0.29% 22,560 $1.9M No change
CUBI Customers Bancorp Inc. 0.29% 29,000 $1.9M Add +26.1%
HLT Hilton Worldwide Holdings Inc. 0.29% 7,133 $1.9M No change
EG Everest Group Ltd. 0.27% 5,000 $1.8M No change
WFC Wells Fargo & Co. 0.26% 20,000 $1.7M No change
BPOP Popular Inc. 0.25% 13,000 $1.7M No change
OSG Octave Specialty Group Inc. filed as AMBAC FINL GROUP INC 0.25% 196,382 $1.6M No change
AKAM Akamai Technologies Inc. 0.23% 20,000 $1.5M No change
TT Trane Technologies PLC 0.23% 3,500 $1.5M No change
TMO Thermo Fisher Scientific Inc. 0.22% 3,000 $1.5M No change
URI United Rentals Inc. 0.22% 1,500 $1.4M No change
CTRA Coterra Energy Inc. 0.22% 60,043 $1.4M No change
CP Canadian Pacific Kansas City 0.22% 18,746 $1.4M No change
V Visa Inc. Class A 0.21% 4,000 $1.4M No change
LBRDK Liberty Broadband-C 0.18% 18,674 $1.2M No change
LII Lennox International Inc. 0.18% 2,200 $1.2M No change
AVGO Broadcom Inc. 0.18% 3,500 $1.2M No change
RTX RTX Corp. 0.17% 6,766 $1.1M No change
SNOW Snowflake Inc. 0.17% 5,000 $1.1M No change
PNFP Pinnacle Financial Partners 0.17% 12,000 $1.1M No change
OZK Bank Ozk 0.17% 21,455 $1.1M No change
CSX CSX Corp. 0.16% 30,000 $1.1M No change
MC Moelis & Co. Class A 0.16% 14,800 $1.1M No change
MS Morgan Stanley 0.16% 6,608 $1.1M No change
ACGL Arch Capital Group Ltd. 0.16% 11,500 $1.0M No change
BABA Alibaba Group Holding-SP ADR 0.15% 5,500 $983K Add +22.2%
JEF Jefferies Financial Group Inc. 0.15% 15,000 $981K No change
CBRE CBRE Group Inc. Class A 0.15% 6,000 $945K No change
LOW Lowe's Cos Inc. 0.14% 3,700 $930K No change
FCNCA First Citizens Bcshs Class A 0.14% 512 $916K Add +141.5%
XOM Exxon Mobil Corp. 0.14% 8,057 $908K No change
NSC Norfolk Southern Corp. 0.14% 3,000 $901K No change
AON Aon PLC Class A 0.14% 2,500 $891K No change
COP Conocophillips 0.14% 9,272 $877K No change
ZTS Zoetis Inc. 0.13% 5,976 $874K No change
YUMC Yum China Holdings Inc. 0.13% 19,000 $815K No change
PFE Pfizer Inc. 0.13% 31,962 $814K No change
WAL Western Alliance Bancorp 0.12% 9,000 $780K No change
CARR Carrier Global Corp. 0.12% 13,000 $776K No change
MCK McKesson Corp. 0.12% 1,000 $773K No change
GEV GE Vernova Inc. 0.12% 1,250 $769K No change
KDP Keurig Dr Pepper Inc. 0.12% 30,000 $765K No change
ECHO Echostar Corp. Class A 0.12% 10,000 $764K No change
IWV iShares Russell 3000 ETF 0.12% 2,000 $758K No change
VRT Vertiv Holdings Co. Class A 0.12% 5,000 $754K No change
BRK.A Berkshire Hathaway Inc. Class A 0.12% 1 $754K No change
MTN Vail Resorts Inc. 0.12% 5,000 $748K No change
FCN Fti Consulting Inc. 0.11% 4,500 $727K No change
UBER Uber Technologies Inc. 0.11% 7,298 $715K No change
LLY Eli Lilly & Co. 0.11% 900 $687K No change
SARO Standardaero Inc. 0.11% 25,125 $686K No change

Show all 190 holdings

Portfolio Sells Q2 2025 → Q3 2025
HES Hess Corp. Sold out 0.00% −0.18
ESGR Enstar Group Ltd. Sold out 0.00% −0.14
IONS Ionis Pharmaceuticals Inc. Sold out 0.00% −0.07
SNREY Sunrise Communicat Class A Sold out 0.00% −0.06
APO Apollo Global Management Inc. Reduce -0.0% 0.33% −0.04
INTC Intel Corp. Sold out 0.00% −0.04
PPBI Pacific Premier Bancorp Inc. Sold out 0.00% −0.04
FCX Freeport-McMoran Inc. Sold out 0.00% −0.04
BNTX Biontech SE-ADR Sold out 0.00% −0.03
RYAN Ryan Specialty Holdings Inc. Sold out 0.00% −0.03
UPS United Parcel Service Class B Sold out 0.00% −0.03
ONB Old National Bancorp Reduce -41.6% 0.04% −0.03
HAFC Hanmi Financial Corporation Reduce -12.5% 0.07% −0.01
FOX Fox Corp. Class B Reduce 0.0% 0.36% +0.02

Portfolio Buys Q2 2025 → Q3 2025
NBIS Nebius Group NV Add +0.4% 0.48% +0.23
CVX Chevron Corp. Add +187.6% 0.30% +0.20
GDS GDS Holdings Ltd. - ADR New 0.09% +0.09
FBK FB Financial Corp. Add +9.1% 0.35% +0.07
FCNCA First Citizens Bcshs Class A Add +141.5% 0.14% +0.07
GE General Electric Add +16.7% 0.32% +0.07
CUBI Customers Bancorp Inc. Add +26.1% 0.29% +0.07
BABA Alibaba Group Holding-SP ADR Add +22.2% 0.15% +0.07
CNC Centene Corp. New 0.07% +0.07
TDG Transdigm Group Inc. New 0.04% +0.04
HHH Howard Hughes Holdings Inc. New 0.03% +0.03
HCA HCA Healthcare Inc. New 0.03% +0.03
DELL Dell Technologies -C New 0.03% +0.03
IMKTA Ingles Markets Inc. Class A New 0.03% +0.03
WTW Willis Towers Watson PLC New 0.03% +0.03
NBBK NB Bancorp Inc. New 0.03% +0.03
SLDE Slide Insurance Holdings Inc. New 0.02% +0.02
VG Venture Global Inc. Class A Add +45.5% 0.09% +0.02

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 194$795.1MEQIX, MU, GOOGL, AAPL, AMZN
Q1 2026 197$692.2MEQIX, GOOGL, AAPL, AMZN, NVDA
Q4 2025 193$665.8MEQIX, GOOGL, AAPL, AMZN, NVDA
Q3 2025 190$648.4MEQIX, GOOGL, AAPL, AMZN, NVDA
Q2 2025 190$611.0MEQIX, AMZN, AAPL, NVDA, GOOGL
Q1 2025 193$576.0MEQIX, AAPL, AMZN, GOOGL, NVDA
Q4 2024 192$636.5MEQIX, AAPL, AMZN, GOOGL, NVDA
Q3 2024 188$597.5MEQIX, AAPL, AMZN, GOOGL, NVDA
Q2 2024 178$545.4MEQIX, AAPL, AMZN, GOOGL, NVDA
Q1 2024 176$544.4MEQIX, AMZN, AAPL, GOOGL, CNQ