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Harbor Advisors LLC

SEC CIK
0001687156
Latest filing
Jul 28, 2026

Holdings in Q1 2021

Holdings as of Mar 31, 2021, filed May 4, 2021. Long positions only.

Institution overview
Positions
199
No 13F data for Q4 2020
Portfolio value
$451.1M
No 13F data for Q4 2020
Filed
May 4, 2021
SEC

Livermore's 13F data starts with Q1 2021, so this quarter has no previous quarter to compare with and changes are not shown.

Holdings of Harbor Advisors LLC in Q1 2021
SecurityClassSharesValue% of portfolioShare changeActionHistory
EQIXEquinix IncCOM261,711$177.9M39.4%––History
AMZNAmazon Com IncStock7,700$23.8M5.3%––History
AAPLApple Inc.Stock148,400$18.1M4.0%––History
CHTRCharter Communications, Inc.CL A27,656$17.1M3.8%––History
GOOGLAlphabet Inc.Stock7,400$15.3M3.4%––History
DISWalt Disney CoStock56,138$10.4M2.3%––History
MAMastercard IncStock26,000$9.26M2.1%––History
CNQCanadian Natural Resources LtdCOM249,900$7.71M1.7%––History
NTBBank of N.T. Butterfield & Son LtdSHS NEW180,407$6.89M1.5%––History
DLRDigital Realty Trust, Inc.COM42,630$6.00M1.3%––History
FERGFerguson Enterprises Inc.SHS50,190$6.00M1.3%––History
MSFTMicrosoft CorpStock25,000$5.89M1.3%––History
Flame Acquisition Corp33850F207UNIT 99/99/9999500,000$4.96M1.1%–––
OSGOctave Specialty Group IncCOM NEW261,382$4.38M1.0%––History
MUMicron Technology IncStock48,500$4.28M0.9%––History
SPGIS&P Global Inc.Stock11,000$3.88M0.9%––History
JPMJPMorgan Chase & CoStock24,148$3.68M0.8%––History
IBKRInteractive Brokers Group, Inc.Stock49,558$3.62M0.8%––History
METAMeta Platforms, Inc.Stock10,800$3.18M0.7%––History
BLKBlackRock, Inc.COM3,924$2.96M0.7%––History
ADBEAdobe Inc.Stock6,000$2.85M0.6%––History
PJTPJT Partners Inc.COM CL A41,519$2.81M0.6%––History
DHRDanaher CorpStock11,505$2.59M0.6%––History
TMUST-Mobile US, Inc.Stock20,650$2.59M0.6%––History
CoreSite Realty Corp21870Q105COM20,000$2.40M0.5%–––
MCOMoodys CorpStock8,000$2.39M0.5%––History
MTNVail Resorts IncCOM8,000$2.33M0.5%––History
LBRDKLiberty Broadband CorpCOM SER C15,020$2.25M0.5%––History
NUENucor CorpCOM27,992$2.25M0.5%––History
EFXEquifax IncCOM12,000$2.17M0.5%––History
NVDANVIDIA CorpStock4,000$2.14M0.5%––History
GOOGAlphabet Inc.Stock1,000$2.07M0.5%––History
AKAMAkamai Technologies IncCOM20,000$2.04M0.5%––History
EVREvercore Inc.CLASS A15,000$1.98M0.4%––History
EOGEOG Resources IncStock25,900$1.88M0.4%––History
PNCPNC Financial Services Group, Inc.Stock10,444$1.83M0.4%––History
KSUKansas City SouthernCOM NEW6,500$1.72M0.4%––History
HLIHoulihan Lokey, Inc.CL A25,000$1.66M0.4%––History
FBKFB Financial CorpCOM37,387$1.66M0.4%––History
FTAIFTAI Aviation Ltd.COM REP LTD LIAB55,000$1.55M0.3%––History
HDHome Depot, Inc.Stock5,000$1.53M0.3%––History
MLMMartin Marietta Materials IncCOM4,500$1.51M0.3%––History
WMTWalmart Inc.Stock11,000$1.49M0.3%––History
FOXFox CorpCL B COM41,266$1.44M0.3%––History
HONEHarborOne Bancorp, Inc.COM NEW103,255$1.39M0.3%––History
FNFFidelity National Financial, Inc.COM SHS33,409$1.36M0.3%––History
CMCSAComcast CorpStock25,000$1.35M0.3%––History
PENNPENN Entertainment, Inc.COM12,000$1.26M0.3%––History
YUMCYum China Holdings, Inc.COM19,000$1.13M0.2%––History
NBISNebius Group N.V.Stock17,500$1.12M0.2%––History
QTSQTS Realty Trust, Inc.COM CL A18,029$1.12M0.2%––History
BROBrown & Brown, Inc.Stock24,000$1.10M0.2%––History
PNFPPinnacle Financial Partners, Inc.COM12,000$1.06M0.2%––History
KDPKeurig Dr Pepper Inc.COM30,000$1.03M0.2%––History
OPTUOptimum Communications, Inc.CL A31,358$1.02M0.2%––History
TFSLTFS Financial CORPCOM50,000$1.02M0.2%––History
JDJD.com, Inc.SPON ADS CL A12,000$1.01M0.2%––History
NTRNutrien Ltd.COM18,608$1.00M0.2%––History
CSXCSX CorpStock10,000$964.0K0.2%––History
ZTSZoetis Inc.Stock5,976$941.0K0.2%––History
CTRACoterra Energy Inc.Stock48,000$901.0K0.2%––History
OZKBank OZKCOM21,455$876.0K0.2%––History
HLTHilton Worldwide Holdings Inc.COM7,133$863.0K0.2%––History
HUNHuntsman CORPCOM29,146$840.0K0.2%––History
CSGPCostar Group, Inc.COM1,006$827.0K0.2%––History
CONECyrusOne Holdco LLCCOM12,200$826.0K0.2%––History
MCMoelis & CoCL A14,800$812.0K0.2%––History
NSCNorfolk Southern CorpStock3,000$806.0K0.2%––History
WFCWells Fargo & CompanyStock20,000$781.0K0.2%––History
SWCHSwitch, Inc.CL A48,000$780.0K0.2%––History
SICPSilvergate Capital CorpCL A5,400$768.0K0.2%––History
UBERUber Technologies, IncStock14,000$763.0K0.2%––History
GTMZoomInfo Technologies Inc.Stock15,500$758.0K0.2%––History
FOXAFox CorpCL A COM19,766$714.0K0.2%––History
DALDelta Air Lines, Inc.COM NEW14,602$705.0K0.2%––History
BPOPPopular, Inc.COM NEW10,000$703.0K0.2%––History
PFEPfizer IncStock18,962$687.0K0.2%––History
LIILennox International IncCOM2,200$685.0K0.2%––History
FCNFti Consulting, IncCOM4,500$630.0K0.1%––History
LBTYKLiberty Global Ltd.SHS CL C24,320$621.0K0.1%––History
CAGConagra Brands Inc.Stock16,500$620.0K0.1%––History
ESGREnstar Group LTDSHS2,500$617.0K0.1%––History
GHLGreenhill & Co IncCOM35,000$577.0K0.1%––History
AONAon plcCL A2,500$575.0K0.1%––History
LOWLowes Companies IncStock3,000$571.0K0.1%––History
Standard Avb Finl Corp85303B100COM17,284$564.0K0.1%–––
PXDPioneer Natural Resources CoCOM3,468$551.0K0.1%––History
LBRDALiberty Broadband CorpCOM SER A3,669$533.0K0.1%––History
Athene Holding Ltd.G0684D107CL A10,399$524.0K0.1%–––
CLRContinental Resources, IncCOM20,000$517.0K0.1%––History
MSMorgan StanleyStock6,608$513.0K0.1%––History
URIUnited Rentals, Inc.COM1,500$494.0K0.1%––History
COPConocoPhillipsStock9,272$491.0K0.1%––History
SBCFSeacoast Banking Corp of FloridaCOM NEW13,272$481.0K0.1%––History
PPBIPacific Premier Bancorp IncCOM11,082$481.0K0.1%––History
CBRECbre Group, Inc.CL A6,000$475.0K0.1%––History
CVXChevron CorpStock4,372$458.0K0.1%––History
AMNBAmerican National Bankshares Inc.COM13,811$457.0K0.1%––History
ITGartner IncCOM2,500$456.0K0.1%––History
JEFJefferies Financial Group Inc.COM15,000$452.0K0.1%––History