Harbor Advisors LLC

In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 15, 2025), Harbor Advisors LLC reported 193 stock positions worth $576.0 million. Its top holding was Equinix (EQIX) at 35.7% of the portfolio, followed by Apple (AAPL, 5.7%) and Amazon.com (AMZN, 5.1%). Compared with Q4 2024, it opened 7 new positions, sold out of 6, added to 8 and reduced 4. The biggest buy was Fox Class B (FOX, shares −0%) and the biggest sale an exit from Merchants Bancorp (MBIN).

Most Recent 13F
Q2 2026
Location
West Palm Beach, FL
CIK
0001687156
Portfolio Value
$576.0M (Q1 2025)
SEC Filing
0001214659-25-007679 ↗ filed May 15, 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 $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 Q1 2026 Q2 2026: $795.1M Q2 2026

Holdings 193 stocks · $576.0M
EQIX Equinix Inc. 35.74% 252,490 $205.9M No change
AAPL Apple Inc. 5.72% 148,400 $33.0M No change
AMZN Amazon.com Inc. 5.11% 154,700 $29.4M No change
GOOGL Alphabet Inc. Class A 4.18% 155,600 $24.1M No change
NVDA Nvidia Corp. 3.39% 180,000 $19.5M No change
CNQ Canadian Natural Resources 2.67% 499,800 $15.4M No change
MA Mastercard Inc. Class A 2.47% 26,000 $14.3M No change
MSFT Microsoft Corp. 1.69% 26,000 $9.8M No change
IBKR Interactive Brokers Gro Class A 1.34% 46,708 $7.7M No change
META Meta Platforms Inc. Class A 1.28% 12,800 $7.4M No change
SPGI S&P Global Inc. 1.21% 13,667 $6.9M No change
FERG Ferguson Enterprises Inc. 1.15% 41,255 $6.6M No change
FTAI Ftai Aviation Ltd. 1.10% 57,000 $6.3M Add +3.6%
NTB Bank of N.T. Butterfield&son 1.05% 155,408 $6.0M No change
JPM JPMorgan Chase & Co. 1.03% 24,148 $5.9M No change
CHTR Charter Communications Inc. Class A 1.02% 15,942 $5.9M No change
PJT PJT Partners Inc. Class A 0.99% 41,519 $5.7M No change
TMUS T-Mobile US Inc. 0.96% 20,650 $5.5M No change
MU Micron Technology Inc. 0.73% 48,500 $4.2M No change
HLI Houlihan Lokey Inc. 0.70% 25,000 $4.0M No change
MCO Moody's Corp. 0.65% 8,000 $3.7M No change
BLK BlackRock Inc. 0.64% 3,924 $3.7M No change
DLR Digital Realty Trust Inc. 0.64% 25,552 $3.7M No change
NUE Nucor Corp. 0.58% 27,992 $3.4M No change
EOG EOG Resources Inc. 0.58% 25,900 $3.3M No change
GOOG Alphabet Inc. Class C 0.54% 20,000 $3.1M No change
EVR Evercore Inc. Class A 0.52% 15,000 $3.0M No change
BRO Brown & Brown Inc. 0.52% 24,000 $3.0M No change
EFX Equifax Inc. 0.51% 12,000 $2.9M No change
WMT Walmart Inc. 0.50% 33,000 $2.9M No change
AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO 0.50% 8,375 $2.9M No change
DHR Danaher Corp. 0.45% 12,505 $2.6M No change
ADBE Adobe Inc. 0.40% 6,000 $2.3M No change
CRWD CrowdStrike Holdings Inc. Class A 0.38% 6,250 $2.2M No change
APO Apollo Global Management Inc. 0.38% 15,948 $2.2M Add +0.0%
FOX Fox Corp. Class B 0.38% 41,266 $2.2M Add +0.0%
FNF Fidelity National Financial 0.38% 33,409 $2.2M No change
MLM Martin Marietta Materials 0.37% 4,500 $2.2M No change
PANW Palo Alto Networks Inc. 0.37% 12,500 $2.1M No change
ARES Ares Management Corp. Class A 0.36% 14,000 $2.1M No change
HD Home Depot Inc. 0.35% 5,500 $2.0M No change
BX Blackstone Inc. 0.33% 13,700 $1.9M No change
PNC PNC Financial Services Group 0.32% 10,444 $1.8M No change
EG Everest Group Ltd. 0.32% 5,000 $1.8M No change
CSGP Costar Group Inc. 0.31% 22,560 $1.8M No change
CUBI Customers Bancorp Inc. 0.31% 35,500 $1.8M Reduce -20.1%
MCB Metropolitan Bank Holding Co. 0.31% 31,500 $1.8M No change
CTRA Coterra Energy Inc. 0.30% 60,043 $1.7M No change
FBK FB Financial Corp. filed as FB FINL CORP 0.30% 37,387 $1.7M No change
OSG Octave Specialty Group Inc. filed as AMBAC FINL GROUP INC 0.30% 196,382 $1.7M No change
HLT Hilton Worldwide Holdings Inc. 0.28% 7,133 $1.6M No change
AKAM Akamai Technologies Inc. 0.28% 20,000 $1.6M No change
LBRDK Liberty Broadband-C 0.28% 18,674 $1.6M No change
TMO Thermo Fisher Scientific Inc. 0.26% 3,000 $1.5M No change
WFC Wells Fargo & Co. 0.25% 20,000 $1.4M No change
V Visa Inc. Class A 0.24% 4,000 $1.4M No change
CP Canadian Pacific Kansas City 0.23% 18,746 $1.3M No change
PNFP Pinnacle Financial Partners 0.22% 12,000 $1.3M No change
LII Lennox International Inc. 0.21% 2,200 $1.2M No change
GE General Electric filed as GE AEROSPACE 0.21% 6,000 $1.2M No change
BPOP Popular Inc. 0.21% 13,000 $1.2M No change
TT Trane Technologies PLC 0.20% 3,500 $1.2M No change
ACGL Arch Capital Group Ltd. 0.19% 11,500 $1.1M No change
IT Gartner Inc. 0.18% 2,500 $1.0M No change
KDP Keurig Dr Pepper Inc. 0.18% 30,000 $1.0M No change
AON Aon PLC Class A 0.17% 2,500 $998K No change
YUMC Yum China Holdings Inc. 0.17% 19,000 $989K No change
ZTS Zoetis Inc. 0.17% 5,976 $984K No change
COP Conocophillips 0.17% 9,272 $974K No change
HES Hess Corp. 0.17% 6,000 $958K No change
XOM Exxon Mobil Corp. 0.17% 8,057 $958K No change
URI United Rentals Inc. 0.16% 1,500 $940K No change
OZK Bank Ozk 0.16% 21,455 $932K No change
PLTR Palantir Technologies Inc. Class A 0.16% 11,000 $928K No change
RTX RTX Corp. 0.16% 6,766 $896K No change
CSX CSX Corp. 0.15% 30,000 $883K No change
MC Moelis & Co. Class A 0.15% 14,800 $864K No change
LOW Lowe's Cos Inc. 0.15% 3,700 $863K No change
ESGR Enstar Group Ltd. 0.14% 2,500 $831K No change
CARR Carrier Global Corp. 0.14% 13,000 $824K No change
PFE Pfizer Inc. 0.14% 31,962 $810K No change
JEF Jefferies Financial Group Inc. 0.14% 15,000 $804K No change
OWL Blue Owl Capital Inc. 0.14% 40,000 $802K No change
MTN Vail Resorts Inc. 0.14% 5,000 $800K Reduce -37.5%
BRK.A Berkshire Hathaway Inc. Class A 0.14% 1 $798K No change
CBRE CBRE Group Inc. Class A 0.14% 6,000 $785K No change
MS Morgan Stanley 0.13% 6,608 $771K No change
LLY Eli Lilly & Co. 0.13% 900 $743K No change
FCN Fti Consulting Inc. 0.13% 4,500 $738K No change
CVX Chevron Corp. 0.13% 4,372 $731K No change
SNOW Snowflake Inc. 0.13% 5,000 $731K No change
HONE Harborone Bancorp Inc. 0.12% 69,374 $719K No change
NSC Norfolk Southern Corp. 0.12% 3,000 $711K No change
FANG Diamondback Energy Inc. 0.12% 4,398 $703K No change
WAL Western Alliance Bancorp 0.12% 9,000 $691K Add +28.6%
MCK McKesson Corp. 0.12% 1,000 $673K No change
SARO Standardaero Inc. 0.12% 25,125 $669K No change
IWV iShares Russell 3000 ETF 0.11% 2,000 $635K No change
KNSL Kinsale Capital Group Inc. 0.11% 1,300 $633K Add +62.5%
AIG American International Group 0.11% 7,000 $609K No change

Show all 193 holdings

Portfolio Sells Q4 2024 → Q1 2025
MBIN Merchants Bancorp Sold out 0.00% −0.12
MTN Vail Resorts Inc. Reduce -37.5% 0.14% −0.10
NVO Novo-Nordisk A/S-Spons ADR Sold out 0.00% −0.04
BNTX Biontech SE-ADR Sold out 0.00% −0.04
HHH Howard Hughes Holdings Inc. Sold out 0.00% −0.03
DOW Dow Inc. Sold out 0.00% −0.03
CUBI Customers Bancorp Inc. Reduce -20.1% 0.31% −0.03
INTC Intel Corp. Reduce -43.1% 0.07% −0.03
KVUE Kenvue Inc. Reduce -37.1% 0.07% −0.02
OM Outset Medical Inc. Sold out 0.00% −0.01

Portfolio Buys Q4 2024 → Q1 2025
FOX Fox Corp. Class B Add +0.0% 0.38% +0.08
FG F&G Annuities & Life Inc. New 0.08% +0.08
VG Venture Global Inc. Class A New 0.05% +0.05
KNSL Kinsale Capital Group Inc. Add +62.5% 0.11% +0.05
UNH Unitedhealth Group Inc. New 0.05% +0.05
GILD Gilead Sciences Inc. New 0.04% +0.04
RYAN Ryan Specialty Holdings Inc. New 0.04% +0.04
WTW Willis Towers Watson PLC New 0.04% +0.04
WAL Western Alliance Bancorp Add +28.6% 0.12% +0.03
PLGO Pelagos Insurance Capital LT New 0.03% +0.03
VRT Vertiv Holdings Co. Class A Add +150.0% 0.06% +0.03
NBIS Nebius Group NV Add +57.1% 0.10% +0.02
HAFC Hanmi Financial Corporation Add +14.3% 0.08% +0.01
APO Apollo Global Management Inc. Add +0.0% 0.38% −0.03
FTAI Ftai Aviation Ltd. Add +3.6% 1.10% −0.15

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