Harbor Advisors LLC

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 7, 2026), Harbor Advisors LLC reported 197 stock positions worth $692.2 million. Its top holding was Equinix (EQIX) at 33.9% of the portfolio, followed by Alphabet Class A (GOOGL, 6.0%) and Apple (AAPL, 5.4%). Compared with Q4 2025, it opened 9 new positions, sold out of 5, added to 11 and reduced 9. The biggest buy was Micron Technology (MU, shares +5%) and the biggest sale Alphabet Class A (GOOGL, shares −6%).

Most Recent 13F
Q2 2026
Location
West Palm Beach, FL
CIK
0001687156
Portfolio Value
$692.2M (Q1 2026)
SEC Filing
0001214659-26-005743 ↗ filed May 7, 2026

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 Q3 2025 Q4 2025: $665.8M Q4 2025 Q1 2026: $692.2M $692.2M Q1 2026 Q2 2026: $795.1M Q2 2026

Holdings 197 stocks · $692.2M
EQIX Equinix Inc. 33.88% 239,240 $234.5M Reduce -5.4%
GOOGL Alphabet Inc. Class A 6.05% 145,600 $41.9M Reduce -6.4%
AAPL Apple Inc. 5.44% 148,400 $37.7M No change
AMZN Amazon.com Inc. 4.61% 153,200 $31.9M No change
NVDA Nvidia Corp. 4.54% 180,000 $31.4M No change
CNQ Canadian Natural Resources 3.52% 499,800 $24.4M No change
MU Micron Technology Inc. 2.49% 51,000 $17.2M Add +5.2%
FTAI Ftai Aviation Ltd. 2.02% 57,000 $14.0M No change
MA Mastercard Inc. Class A 1.88% 26,000 $13.0M No change
IBKR Interactive Brokers Gro Class A 1.81% 186,832 $12.5M No change
MSFT Microsoft Corp. 1.42% 26,500 $9.8M Add +1.9%
FERG Ferguson Enterprises Inc. 1.39% 41,255 $9.6M No change
META Meta Platforms Inc. Class A 1.14% 13,800 $7.9M No change
NTB Bank of N.T. Butterfield&son 1.10% 144,908 $7.6M Reduce -6.8%
JPM JPMorgan Chase & Co. 1.03% 24,148 $7.1M No change
SPGI S&P Global Inc. 0.84% 13,667 $5.8M No change
PJT PJT Partners Inc. Class A 0.84% 41,519 $5.8M No change
GOOG Alphabet Inc. Class C 0.83% 20,000 $5.7M No change
NUE Nucor Corp. 0.68% 27,992 $4.7M No change
DLR Digital Realty Trust Inc. 0.67% 25,552 $4.6M No change
EVR Evercore Inc. Class A 0.65% 15,000 $4.5M No change
TMUS T-Mobile US Inc. 0.63% 20,650 $4.3M No change
WMT Walmart Inc. 0.59% 33,000 $4.1M No change
BLK BlackRock Inc. 0.55% 3,924 $3.8M No change
EOG EOG Resources Inc. 0.54% 25,900 $3.7M No change
HLI Houlihan Lokey Inc. 0.52% 25,000 $3.6M No change
MCO Moody's Corp. 0.50% 8,000 $3.5M No change
NBIS Nebius Group NV 0.41% 27,600 $2.9M No change
MLM Martin Marietta Materials 0.38% 4,500 $2.6M No change
MCB Metropolitan Bank Holding Co. 0.38% 31,500 $2.6M No change
CVX Chevron Corp. 0.38% 12,572 $2.6M No change
CRWD CrowdStrike Holdings Inc. Class A 0.35% 6,250 $2.4M No change
DHR Danaher Corp. 0.34% 12,505 $2.4M No change
AKAM Akamai Technologies Inc. 0.33% 20,000 $2.3M No change
FOX Fox Corp. Class B 0.32% 41,265 $2.2M No change
PNC PNC Financial Services Group 0.31% 10,444 $2.2M No change
HLT Hilton Worldwide Holdings Inc. 0.31% 7,133 $2.2M No change
EFX Equifax Inc. 0.31% 12,000 $2.2M No change
FBK FB Financial Corp. filed as FB FINL CORP 0.31% 40,799 $2.1M No change
CTRA Coterra Energy Inc. 0.30% 60,043 $2.1M No change
GE General Electric filed as GE AEROSPACE 0.29% 7,000 $2.0M No change
GDS GDS Holdings Ltd. - ADR filed as GDS HLDGS LTD 0.28% 47,500 $1.9M Add +137.5%
CHTR Charter Communications Inc. Class A 0.27% 8,744 $1.9M Reduce -45.1%
AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO 0.26% 8,375 $1.8M No change
HD Home Depot Inc. 0.26% 5,500 $1.8M No change
APO Apollo Global Management Inc. 0.26% 15,947 $1.8M No change
BPOP Popular Inc. 0.25% 13,000 $1.7M No change
EG Everest Group Ltd. 0.24% 5,000 $1.6M No change
PLTR Palantir Technologies Inc. Class A 0.23% 11,000 $1.6M No change
PANW Palo Alto Networks Inc. 0.23% 10,000 $1.6M Reduce -20.0%
CUBI Customers Bancorp Inc. 0.23% 23,000 $1.6M No change
WFC Wells Fargo & Co. 0.23% 20,000 $1.6M No change
ARES Ares Management Corp. Class A 0.23% 14,500 $1.6M No change
BX Blackstone Inc. 0.23% 13,700 $1.6M No change
BRO Brown & Brown Inc. 0.23% 24,000 $1.6M No change
FNF Fidelity National Financial 0.22% 33,409 $1.5M No change
TMO Thermo Fisher Scientific Inc. 0.21% 3,000 $1.5M No change
CP Canadian Pacific Kansas City 0.21% 18,746 $1.5M No change
TT Trane Technologies PLC 0.21% 3,500 $1.5M No change
ADBE Adobe Inc. 0.21% 6,000 $1.5M No change
XOM Exxon Mobil Corp. 0.20% 8,057 $1.4M No change
RTX RTX Corp. 0.19% 6,766 $1.3M No change
VRT Vertiv Holdings Co. Class A 0.18% 5,000 $1.3M No change
CSX CSX Corp. 0.18% 30,000 $1.2M No change
COP Conocophillips 0.18% 9,272 $1.2M No change
V Visa Inc. Class A 0.17% 4,000 $1.2M No change
LLY Eli Lilly & Co. 0.17% 1,300 $1.2M Add +44.4%
ECHO Echostar Corp. Class A 0.17% 10,000 $1.2M No change
BABA Alibaba Group Holding-SP ADR 0.16% 9,000 $1.1M Add +28.6%
ACGL Arch Capital Group Ltd. 0.16% 11,500 $1.1M No change
URI United Rentals Inc. 0.16% 1,500 $1.1M No change
GEV GE Vernova Inc. 0.16% 1,250 $1.1M No change
MS Morgan Stanley 0.16% 6,608 $1.1M No change
AVGO Broadcom Inc. 0.16% 3,500 $1.1M No change
CSGP Costar Group Inc. 0.15% 26,560 $1.1M No change
WAL Western Alliance Bancorp 0.15% 15,000 $1.1M Add +7.1%
PNFP Pinnacle Financial Partners 0.15% 12,000 $1.0M New
LII Lennox International Inc. 0.15% 2,200 $1.0M No change
OZK Bank Ozk 0.14% 21,455 $985K No change
FCNCA First Citizens Bcshs Class A 0.14% 512 $965K No change
LBRDK Liberty Broadband-C 0.14% 18,674 $939K No change
YUMC Yum China Holdings Inc. 0.13% 19,000 $927K No change
ASML ASML Holding NV-NY Reg SHS filed as ASML HLDG NV 0.13% 700 $925K No change
OSG Octave Specialty Group Inc. 0.13% 196,382 $913K No change
PFE Pfizer Inc. 0.13% 31,962 $897K No change
LOW Lowe's Cos Inc. 0.13% 3,700 $874K No change
FANG Diamondback Energy Inc. 0.13% 4,398 $870K No change
MCK McKesson Corp. 0.13% 1,000 $865K No change
NSC Norfolk Southern Corp. 0.12% 3,000 $861K No change
MC Moelis & Co. Class A 0.12% 14,800 $844K No change
SNOW Snowflake Inc. 0.12% 5,500 $830K Add +10.0%
AMD Advanced Micro Devices 0.12% 4,000 $814K No change
CBRE CBRE Group Inc. Class A 0.12% 6,000 $813K No change
AON Aon PLC Class A 0.12% 2,500 $807K No change
FCN Fti Consulting Inc. 0.11% 4,500 $795K No change
KDP Keurig Dr Pepper Inc. 0.11% 30,000 $790K No change
IWV iShares Russell 3000 ETF 0.11% 2,000 $741K No change
CARR Carrier Global Corp. 0.11% 13,000 $732K No change
WMB Williams Cos Inc. 0.11% 10,000 $728K No change
BRK.A Berkshire Hathaway Inc. Class A 0.10% 1 $718K No change

Show all 197 holdings

Portfolio Sells Q4 2025 → Q1 2026
GOOGL Alphabet Inc. Class A Reduce -6.4% 6.05% −1.27
CHTR Charter Communications Inc. Class A Reduce -45.1% 0.27% −0.23
PANW Palo Alto Networks Inc. Reduce -20.0% 0.23% −0.11
NTB Bank of N.T. Butterfield&son Reduce -6.8% 1.10% −0.06
LNTH Lantheus Holdings Inc. Sold out 0.00% −0.04
KKR KKR & Co. Inc. Sold out 0.00% −0.04
OXY Occidental Petroleum Corp. Sold out 0.00% −0.04
GLIBK Liberty Capital Corp. Class C Sold out 0.00% −0.03
HHH Howard Hughes Holdings Inc. Sold out 0.00% −0.03
AII American Integrity Insurance Reduce -7.0% 0.09% −0.02
SMR Nuscale Power Corp. Reduce -20.0% 0.02% −0.01
BE Bloom Energy Corp. Class A Reduce -33.3% 0.04% 0.00
VG Venture Global Inc. Class A Reduce -50.0% 0.05% +0.00
EQIX Equinix Inc. Reduce -5.4% 33.88% +4.79

Portfolio Buys Q4 2025 → Q1 2026
MU Micron Technology Inc. Add +5.2% 2.49% +0.41
GDS GDS Holdings Ltd. - ADR Add +137.5% 0.28% +0.17
PNFP Pinnacle Financial Partners New 0.15% +0.15
WLFC Willis Lease Finance Corp. New 0.05% +0.05
VSNT Versant Media Group Inc. New 0.04% +0.04
MDGL Madrigal Pharmaceuticals Inc. New 0.04% +0.04
DELL Dell Technologies -C New 0.04% +0.04
JAN Janus Living Inc. Class-A-1 New 0.03% +0.03
CIFR Cipher Digital Inc. Add +200.0% 0.06% +0.03
DOW Dow Inc. New 0.03% +0.03
HSY The Hershey Co. New 0.03% +0.03
LLY Eli Lilly & Co. Add +44.4% 0.17% +0.03
KURA Kura Oncology Inc. New 0.02% +0.02
HAFC Hanmi Financial Corporation Add +33.3% 0.08% +0.02
BABA Alibaba Group Holding-SP ADR Add +28.6% 0.16% +0.01
AIG American International Group Add +28.6% 0.10% +0.01
ORCL Oracle Corp. Add +41.7% 0.07% +0.00
WAL Western Alliance Bancorp Add +7.1% 0.15% −0.02
SNOW Snowflake Inc. Add +10.0% 0.12% −0.04
MSFT Microsoft Corp. Add +1.9% 1.42% −0.47

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