Harbor Advisors LLC

13F filer · CIK 0001687156

Reported Jul 28, 2026

Net seller this quarter

13F portfolio value$795MU.S. long equity reported on 13F

Positions19210 new · 14 closed

Net flow last quarter-$1.36MBuys minus sells

Top 10 positions weight67.8%Concentration

Holdings

13F · last 4 quarters free

Scroll for earlier quarters

Company	Value	% of portfolio	% of company	POSITION CHANGE qoq %	First reported
Q2 2026Reported Jul 28, 2026192 positions
EQIXEquinix Inc	$249M	31.36%	0.24%	Not reported	Q4 2016
MUMicron Technology Inc	$57.7M	7.26%	0.00%	-2.0%	Q4 2017
GOOGLAlphabet Inc.	$52M	6.54%	0.00%	Not reported	Q2 2017
AAPLApple Inc.	$42.9M	5.40%	0.00%	Not reported	Q4 2016
AMZNAmazon Com Inc	$36.5M	4.59%	0.00%	Not reported	Q4 2016
NVDANvidia Corp	$36M	4.53%	0.00%	Not reported	Q1 2017
CNQCANADIAN NATURAL RESOURCES Ltd	$19.7M	2.48%	0.02%	Not reported	Q4 2016
IBKRInteractive Brokers Group, Inc.	$16.3M	2.05%	0.07%	Not reported	Q4 2016
FTAIFTAI Aviation Ltd.	$15.4M	1.94%	0.06%	Not reported	Q4 2022
MAMastercard Inc	$13.4M	1.68%	0.00%	Not reported	Q4 2016
MSFTMicrosoft Corp	$9.89M	1.24%	0.00%	Not reported	Q4 2016
FERGFerguson Enterprises Inc.	$9.79M	1.23%	0.02%	Not reported	Q1 2021
NTBBank of N.T. Butterfield & Son Ltd	$8.62M	1.08%	0.36%	Not reported	Q4 2016
JPMJPMorgan Chase & Co	$7.9M	0.99%	0.00%	Not reported	Q4 2016
METAMeta Platforms, Inc.	$7.77M	0.98%	Not reported	Not reported	Q4 2016
NBISNebius Group N.V.	$7.62M	0.96%	0.01%	Not reported	Q1 2017
GOOGAlphabet Inc.	$7.07M	0.89%	Not reported	Not reported	Q1 2017
PJTPJT Partners Inc.	$6.27M	0.79%	0.17%	Not reported	Q4 2016
NUENucor Corp	$6.24M	0.78%	0.01%	Not reported	Q4 2016
SPGIS&P Global Inc.	$5.57M	0.70%	0.00%	Not reported	Q4 2016
DLRDigital Realty Trust, Inc.	$5.49M	0.69%	0.01%	+19.6%	Q4 2016
EVREvercore Inc.	$5.12M	0.64%	Not reported	Not reported	Q3 2017
CRWDCrowdStrike Holdings, Inc.	$4.77M	0.60%	0.00%	Not reported	Q2 2023
BLKBlackRock, Inc.	$3.77M	0.47%	0.00%	Not reported	Q4 2016
WMTWalmart Inc.	$3.74M	0.47%	0.00%	Not reported	Q3 2017
MCOMoodys Corp	$3.62M	0.46%	0.00%	Not reported	Q4 2016
TMUST-Mobile US, Inc.	$3.46M	0.44%	0.00%	Not reported	Q4 2016
PANWPalo Alto Networks Inc	$3.41M	0.43%	0.00%	Not reported	Q3 2023
EOGEog Resources Inc	$3.36M	0.42%	0.00%	Not reported	Q4 2016
HLIHoulihan Lokey, Inc.	$3.35M	0.42%	4.25%	Not reported	Q1 2017
MCBMetropolitan Bank Holding Corp.	$3.11M	0.39%	0.25%	Not reported	Q2 2023
GEGeneral Electric Co	$2.62M	0.33%	0.00%	Not reported	Q2 2023
MLMMartin Marietta Materials Inc	$2.6M	0.33%	0.01%	Not reported	Q4 2016
PNCPNC Financial Services Group, Inc.	$2.57M	0.32%	0.00%	Not reported	Q4 2018
DHRDanaher Corp	$2.38M	0.30%	0.00%	Not reported	Q1 2017
AKAMAkamai Technologies Inc	$2.36M	0.30%	0.01%	Not reported	Q4 2016
HLTHilton Worldwide Holdings Inc.	$2.36M	0.30%	0.00%	Not reported	Q4 2016
AMDAdvanced Micro Devices Inc	$2.32M	0.29%	0.00%	Not reported	Q1 2017
FBKFB Financial Corp	$2.26M	0.28%	0.08%	Not reported	Q4 2016
DVNDevon Energy Corp	$2.16M	0.27%	0.01%	+406.9%	Q1 2021
BPOPPopular, Inc.	$2.13M	0.27%	0.02%	Not reported	Q4 2016
CVXChevron Corp	$2.08M	0.26%	0.00%	Not reported	Q4 2016
HDHome Depot, Inc.	$1.94M	0.24%	0.00%	Not reported	Q4 2017
FOXFox Corp	$1.93M	0.24%	Not reported	Not reported	Q1 2019
AJGArthur J. Gallagher & Co.	$1.92M	0.24%	0.00%	Not reported	Q3 2023
EFXEquifax Inc	$1.9M	0.24%	0.01%	Not reported	Q4 2016
APOApollo Global Management, Inc.	$1.89M	0.24%	0.00%	Not reported	Q1 2022
CUBICustomers Bancorp, Inc.	$1.82M	0.23%	0.07%	Not reported	Q2 2023
GDSGDS Holdings Ltd	$1.8M	0.23%	0.01%	+26.3%	Q3 2025
EGEverest Group, Ltd.	$1.79M	0.22%	0.01%	Not reported	Q3 2017

Q1 2026Reported May 7, 2026195 positions
EQIXEquinix Inc	$235M	33.88%	0.24%	-5.4%	Q4 2016
GOOGLAlphabet Inc.	$41.9M	6.05%	0.00%	-6.4%	Q2 2017
AAPLApple Inc.	$37.7M	5.44%	0.00%	Not reported	Q4 2016
AMZNAmazon Com Inc	$31.9M	4.61%	0.00%	Not reported	Q4 2016
NVDANvidia Corp	$31.4M	4.54%	0.00%	Not reported	Q1 2017
CNQCANADIAN NATURAL RESOURCES Ltd	$24.4M	3.52%	0.02%	Not reported	Q4 2016
MUMicron Technology Inc	$17.2M	2.49%	0.00%	+5.2%	Q4 2017
FTAIFTAI Aviation Ltd.	$14M	2.02%	0.06%	Not reported	Q4 2022
MAMastercard Inc	$13M	1.88%	0.00%	Not reported	Q4 2016
IBKRInteractive Brokers Group, Inc.	$12.5M	1.81%	0.07%	Not reported	Q4 2016
MSFTMicrosoft Corp	$9.81M	1.42%	0.00%	+1.9%	Q4 2016
FERGFerguson Enterprises Inc.	$9.62M	1.39%	0.02%	Not reported	Q1 2021
METAMeta Platforms, Inc.	$7.9M	1.14%	Not reported	Not reported	Q4 2016
NTBBank of N.T. Butterfield & Son Ltd	$7.6M	1.10%	0.36%	-6.8%	Q4 2016
JPMJPMorgan Chase & Co	$7.1M	1.03%	0.00%	Not reported	Q4 2016
SPGIS&P Global Inc.	$5.81M	0.84%	0.00%	Not reported	Q4 2016
PJTPJT Partners Inc.	$5.8M	0.84%	0.17%	Not reported	Q4 2016
GOOGAlphabet Inc.	$5.74M	0.83%	Not reported	Not reported	Q1 2017
NUENucor Corp	$4.73M	0.68%	0.01%	Not reported	Q4 2016
DLRDigital Realty Trust, Inc.	$4.6M	0.67%	0.01%	Not reported	Q4 2016
EVREvercore Inc.	$4.48M	0.65%	Not reported	Not reported	Q3 2017
TMUST-Mobile US, Inc.	$4.34M	0.63%	0.00%	Not reported	Q4 2016
WMTWalmart Inc.	$4.1M	0.59%	0.00%	Not reported	Q3 2017
BLKBlackRock, Inc.	$3.77M	0.55%	0.00%	Not reported	Q4 2016
EOGEog Resources Inc	$3.74M	0.54%	0.00%	Not reported	Q4 2016
HLIHoulihan Lokey, Inc.	$3.59M	0.52%	4.25%	Not reported	Q1 2017
MCOMoodys Corp	$3.49M	0.50%	0.00%	Not reported	Q4 2016
NBISNebius Group N.V.	$2.86M	0.41%	0.01%	Not reported	Q1 2017
MLMMartin Marietta Materials Inc	$2.65M	0.38%	0.01%	Not reported	Q4 2016
MCBMetropolitan Bank Holding Corp.	$2.62M	0.38%	0.25%	Not reported	Q2 2023
CVXChevron Corp	$2.6M	0.38%	0.00%	Not reported	Q4 2016
CRWDCrowdStrike Holdings, Inc.	$2.44M	0.35%	0.00%	Not reported	Q2 2023
DHRDanaher Corp	$2.37M	0.34%	0.00%	Not reported	Q1 2017
AKAMAkamai Technologies Inc	$2.3M	0.33%	0.01%	Not reported	Q4 2016
FOXFox Corp	$2.19M	0.32%	Not reported	Not reported	Q1 2019
PNCPNC Financial Services Group, Inc.	$2.17M	0.31%	0.00%	Not reported	Q4 2018
HLTHilton Worldwide Holdings Inc.	$2.17M	0.31%	0.00%	Not reported	Q4 2016
EFXEquifax Inc	$2.16M	0.31%	0.01%	Not reported	Q4 2016
FBKFB Financial Corp	$2.12M	0.31%	0.08%	Not reported	Q4 2016
CTRACentra Software Inc	$2.11M	0.30%	Not reported	Not reported	Q4 2016
GEGeneral Electric Co	$1.99M	0.29%	0.00%	Not reported	Q2 2023
GDSGDS Holdings Ltd	$1.91M	0.28%	0.01%	+137.5%	Q3 2025
CHTRCharter Communications, Inc.	$1.89M	0.27%	0.00%	-45.2%	Q4 2016
AJGArthur J. Gallagher & Co.	$1.81M	0.26%	0.00%	Not reported	Q3 2023
HDHome Depot, Inc.	$1.81M	0.26%	0.00%	Not reported	Q4 2017
APOApollo Global Management, Inc.	$1.78M	0.26%	0.00%	Not reported	Q1 2022
BPOPPopular, Inc.	$1.74M	0.25%	0.02%	Not reported	Q4 2016
EGEverest Group, Ltd.	$1.63M	0.24%	0.01%	Not reported	Q3 2017
PLTRPalantir Technologies Inc.	$1.61M	0.23%	0.00%	Not reported	Q2 2023
PANWPalo Alto Networks Inc	$1.6M	0.23%	0.00%	-20.0%	Q3 2023

Q4 2025Reported Jan 30, 2026191 positions
EQIXEquinix Inc	$194M	29.09%	0.26%	Not reported	Q4 2016
GOOGLAlphabet Inc.	$48.7M	7.31%	0.00%	Not reported	Q2 2017
AAPLApple Inc.	$40.3M	6.06%	0.00%	Not reported	Q4 2016
AMZNAmazon Com Inc	$35.4M	5.31%	0.00%	-1.0%	Q4 2016
NVDANvidia Corp	$33.6M	5.04%	0.00%	Not reported	Q1 2017
CNQCANADIAN NATURAL RESOURCES Ltd	$16.9M	2.54%	0.02%	Not reported	Q4 2016
MAMastercard Inc	$14.8M	2.23%	0.00%	Not reported	Q4 2016
MUMicron Technology Inc	$13.8M	2.08%	0.00%	Not reported	Q4 2017
MSFTMicrosoft Corp	$12.6M	1.89%	0.00%	Not reported	Q4 2016
IBKRInteractive Brokers Group, Inc.	$12M	1.80%	0.07%	Not reported	Q4 2016
FTAIFTAI Aviation Ltd.	$11.2M	1.69%	0.06%	Not reported	Q4 2022
FERGFerguson Enterprises Inc.	$9.18M	1.38%	0.02%	Not reported	Q1 2021
METAMeta Platforms, Inc.	$9.11M	1.37%	Not reported	+7.8%	Q4 2016
JPMJPMorgan Chase & Co	$7.78M	1.17%	0.00%	Not reported	Q4 2016
NTBBank of N.T. Butterfield & Son Ltd	$7.74M	1.16%	0.39%	Not reported	Q4 2016
SPGIS&P Global Inc.	$7.14M	1.07%	0.00%	Not reported	Q4 2016
PJTPJT Partners Inc.	$6.94M	1.04%	0.17%	Not reported	Q4 2016
GOOGAlphabet Inc.	$6.28M	0.94%	Not reported	Not reported	Q1 2017
EVREvercore Inc.	$5.1M	0.77%	Not reported	Not reported	Q3 2017
NUENucor Corp	$4.57M	0.69%	0.01%	Not reported	Q4 2016
HLIHoulihan Lokey, Inc.	$4.35M	0.65%	4.25%	Not reported	Q1 2017
BLKBlackRock, Inc.	$4.2M	0.63%	0.00%	Not reported	Q4 2016
TMUST-Mobile US, Inc.	$4.19M	0.63%	0.00%	Not reported	Q4 2016
MCOMoodys Corp	$4.09M	0.61%	0.00%	Not reported	Q4 2016
DLRDigital Realty Trust, Inc.	$3.95M	0.59%	0.01%	Not reported	Q4 2016
WMTWalmart Inc.	$3.68M	0.55%	0.00%	Not reported	Q3 2017
CHTRCharter Communications, Inc.	$3.33M	0.50%	0.01%	Not reported	Q4 2016
CRWDCrowdStrike Holdings, Inc.	$2.93M	0.44%	0.00%	Not reported	Q2 2023
DHRDanaher Corp	$2.86M	0.43%	0.00%	Not reported	Q1 2017
MLMMartin Marietta Materials Inc	$2.8M	0.42%	0.01%	Not reported	Q4 2016
EOGEog Resources Inc	$2.72M	0.41%	0.00%	Not reported	Q4 2016
FOXFox Corp	$2.68M	0.40%	Not reported	Not reported	Q1 2019
EFXEquifax Inc	$2.6M	0.39%	0.01%	Not reported	Q4 2016
MCBMetropolitan Bank Holding Corp.	$2.41M	0.36%	0.31%	Not reported	Q2 2023
ARESAres Management Corp	$2.34M	0.35%	0.00%	Not reported	Q2 2021
NBISNebius Group N.V.	$2.31M	0.35%	0.01%	Not reported	Q1 2017
APOApollo Global Management, Inc.	$2.31M	0.35%	0.00%	Not reported	Q1 2022
PANWPalo Alto Networks Inc	$2.3M	0.35%	0.00%	Not reported	Q3 2023
FBKFB Financial Corp	$2.28M	0.34%	0.08%	Not reported	Q4 2016
PNCPNC Financial Services Group, Inc.	$2.18M	0.33%	0.00%	Not reported	Q4 2018
AJGArthur J. Gallagher & Co.	$2.17M	0.33%	0.00%	Not reported	Q3 2023
GEGeneral Electric Co	$2.16M	0.32%	0.00%	Not reported	Q2 2023
BXBlackstone Inc.	$2.11M	0.32%	0.00%	Not reported	Q3 2022
ADBEAdobe Inc.	$2.1M	0.32%	0.00%	Not reported	Q4 2016
HLTHilton Worldwide Holdings Inc.	$2.05M	0.31%	0.00%	Not reported	Q4 2016
PLTRPalantir Technologies Inc.	$1.96M	0.29%	0.00%	Not reported	Q2 2023
CVXChevron Corp	$1.92M	0.29%	0.00%	Not reported	Q4 2016
BROBrown & Brown, Inc.	$1.91M	0.29%	0.01%	Not reported	Q3 2017
HDHome Depot, Inc.	$1.89M	0.28%	0.00%	Not reported	Q4 2017
WFCWells Fargo & Company	$1.86M	0.28%	0.00%	Not reported	Q4 2016

Q3 2025Reported Nov 12, 2025188 positions
EQIXEquinix Inc	$198M	30.54%	0.26%	Not reported	Q4 2016
GOOGLAlphabet Inc.	$37.8M	5.83%	0.00%	Not reported	Q2 2017
AAPLApple Inc.	$37.8M	5.83%	0.00%	Not reported	Q4 2016
AMZNAmazon Com Inc	$34M	5.24%	0.00%	Not reported	Q4 2016
NVDANvidia Corp	$33.6M	5.18%	0.00%	Not reported	Q1 2017
CNQCANADIAN NATURAL RESOURCES Ltd	$16M	2.46%	0.02%	Not reported	Q4 2016
MAMastercard Inc	$14.8M	2.28%	0.00%	Not reported	Q4 2016
MSFTMicrosoft Corp	$13.5M	2.08%	0.00%	Not reported	Q4 2016
IBKRInteractive Brokers Group, Inc.	$12.9M	1.98%	0.07%	Not reported	Q4 2016
FTAIFTAI Aviation Ltd.	$9.51M	1.47%	0.06%	Not reported	Q4 2022
METAMeta Platforms, Inc.	$9.4M	1.45%	Not reported	Not reported	Q4 2016
FERGFerguson Enterprises Inc.	$9.27M	1.43%	0.02%	Not reported	Q1 2021
MUMicron Technology Inc	$8.12M	1.25%	0.00%	Not reported	Q4 2017
JPMJPMorgan Chase & Co	$7.62M	1.17%	0.00%	Not reported	Q4 2016
PJTPJT Partners Inc.	$7.38M	1.14%	0.17%	Not reported	Q4 2016
NTBBank of N.T. Butterfield & Son Ltd	$6.67M	1.03%	0.36%	Not reported	Q4 2016
SPGIS&P Global Inc.	$6.65M	1.03%	0.00%	Not reported	Q4 2016
HLIHoulihan Lokey, Inc.	$5.13M	0.79%	4.25%	Not reported	Q1 2017
EVREvercore Inc.	$5.06M	0.78%	Not reported	Not reported	Q3 2017
TMUST-Mobile US, Inc.	$4.94M	0.76%	0.00%	Not reported	Q4 2016
GOOGAlphabet Inc.	$4.87M	0.75%	Not reported	Not reported	Q1 2017
BLKBlackRock, Inc.	$4.57M	0.71%	0.00%	Not reported	Q4 2016
DLRDigital Realty Trust, Inc.	$4.42M	0.68%	0.01%	Not reported	Q4 2016
CHTRCharter Communications, Inc.	$4.39M	0.68%	0.01%	Not reported	Q4 2016
MCOMoodys Corp	$3.81M	0.59%	0.00%	Not reported	Q4 2016
NUENucor Corp	$3.79M	0.58%	0.01%	Not reported	Q4 2016
WMTWalmart Inc.	$3.4M	0.52%	0.00%	Not reported	Q3 2017
NBISNebius Group N.V.	$3.1M	0.48%	0.01%	+0.4%	Q1 2017
EFXEquifax Inc	$3.08M	0.47%	0.01%	Not reported	Q4 2016
CRWDCrowdStrike Holdings, Inc.	$3.06M	0.47%	0.00%	Not reported	Q2 2023
EOGEog Resources Inc	$2.9M	0.45%	0.00%	Not reported	Q4 2016
MLMMartin Marietta Materials Inc	$2.84M	0.44%	0.01%	Not reported	Q4 2016
AJGArthur J. Gallagher & Co.	$2.59M	0.40%	0.00%	Not reported	Q3 2023
PANWPalo Alto Networks Inc	$2.55M	0.39%	0.00%	Not reported	Q3 2023
DHRDanaher Corp	$2.48M	0.38%	0.00%	Not reported	Q1 2017
FOXFox Corp	$2.36M	0.36%	Not reported	0.0%	Q1 2019
MCBMetropolitan Bank Holding Corp.	$2.36M	0.36%	0.30%	Not reported	Q2 2023
BXBlackstone Inc.	$2.34M	0.36%	0.00%	Not reported	Q3 2022
ARESAres Management Corp	$2.32M	0.36%	0.00%	Not reported	Q2 2021
FBKFB Financial Corp	$2.27M	0.35%	0.08%	+9.1%	Q4 2016
BROBrown & Brown, Inc.	$2.25M	0.35%	0.01%	Not reported	Q3 2017
HDHome Depot, Inc.	$2.23M	0.34%	0.00%	Not reported	Q4 2017
APOApollo Global Management, Inc.	$2.13M	0.33%	0.00%	0.0%	Q1 2022
ADBEAdobe Inc.	$2.12M	0.33%	0.00%	Not reported	Q4 2016
GEGeneral Electric Co	$2.11M	0.32%	0.00%	+16.7%	Q2 2023
PNCPNC Financial Services Group, Inc.	$2.1M	0.32%	0.00%	Not reported	Q4 2018
FNFFidelity National Financial, Inc.	$2.02M	0.31%	0.01%	Not reported	Q2 2020
PLTRPalantir Technologies Inc.	$2.01M	0.31%	0.00%	Not reported	Q2 2023
CVXChevron Corp	$1.95M	0.30%	0.00%	+187.6%	Q4 2016
CSGPCostar Group, Inc.	$1.9M	0.29%	0.01%	Not reported	Q1 2018

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