SEC 13F Intelligence

Managers / Q1 2019 · view latest →

Harbor Advisors LLC

CIK 0001687156 · 1400 CENTREPARK BLVD, SUITE 950, WEST PALM BEACH, FL, 33401 · 5614592946

Reported Value
$310M
Q1 2019
Positions
162
Filings on Record
31
2019–present window
Filed
May 15, 2019
original filing

Summary

Harbor Advisors LLC reported $310M in U.S.-listed holdings across 162 positions for Q1 2019.

The portfolio is heavily concentrated: EQIX alone accounts for 38.2% of reported value.

Compared with Q4 2018, the fund opened 9 new positions and exited 11.

Portfolio Metrics

Turnover
+3.5%
vs prior filed quarter
Top-10 Concentration
+63.2%
share of reported value
Largest Position
+38.2%
Equinix
New / Exited
9 / 11
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $257MQ4 ’18Q1 ’19: $310MQ2 ’19: $335MQ3 ’19: $349MQ4 ’19: $369MQ4 ’19Q1 ’20: $330MQ2 ’20: $390MQ3 ’20: $426MQ4 ’20: $447MQ4 ’20Q1 ’21: $451MQ2 ’21: $506MQ3 ’21: $500MQ4 ’21: $538MQ4 ’21Q1 ’22: $488MQ2 ’22: $412MQ3 ’22: $372MQ4 ’22: $401MQ4 ’22Q1 ’23: $427MQ2 ’23: $471MQ3 ’23: $467MQ4 ’23: $523MQ4 ’23Q1 ’24: $544MQ2 ’24: $545MQ3 ’24: $598MQ4 ’24: $637MQ4 ’24Q1 ’25: $576MQ2 ’25: $611MQ3 ’25: $648MQ4 ’25: $666MQ4 ’25Q1 ’26: $692Mfilingsflow.com

Portfolio Composition

By security type
Common Stock: 48.6%REIT: 39.6%Other: 9.2%ADR: 1.1%Closed-End Fund: 0.8%Other: 0.6%
  • Common Stock · 48.6% · $151M
  • REIT · 39.6% · $123M
  • Other · 9.2% · $29M
  • ADR · 1.1% · $3M
  • Closed-End Fund · 0.8% · $3M
  • Other · 0.6% · $2M

Quarter-over-Quarter Changes full breakdown →

vs Q4 2018 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
FOXFOX CORPNEW+39.3K39.3K+$1M$1M
AURORA CANNABIS INCNEW+125.1K125.1K+$1M$1M
FOXAFOX CORPNEW+19.8K19.8K+$726,000$726,000
CELGCELGENE CORPNEW+5.0K5.0K+$472,000$472,000
WYNNWYNN RESORTS LTDNEW+2.0K2.0K+$239,000$239,000
AXPAMERICAN EXPRESS CONEW+2.0K2.0K+$219,000$219,000
LASRNLIGHT INCNEW+9.0K9.0K+$201,000$201,000
OASIS PETE INC NEWNEW+21.3K21.3K+$128,000$128,000

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q1 2019

49 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1EQIXEQUINIX INChistory →COM38.22%$119M261.7K
2AMZNAMAZON COM INChistory →COM4.48%$14M7.8K
3INTERXION HOLDING N.VSHS3.76%$12M174.7K
4CHTRCHARTER COMMUNICATIONS INC Nhistory →CL A3.04%$9M27.2K
5GOOGLALPHABET INCCAP STK CL A · CAP STK CL C2.88%$9M7.6K
6DISDISNEY WALT COhistory →COM DISNEY2.55%$8M71.1K
7CRCCANADIAN NAT RES LTDhistory →COM2.30%$7M259.9K
8AAPLAPPLE INChistory →COM2.27%$7M37.1K
9BANK OF NT BUTTERFIELD&SON LSHS NEW2.22%$7M192.2K
10MAMASTERCARD INChistory →CL A1.90%$6M25.0K
11OSGAMBAC FINL GROUP INChistory →COM NEW1.53%$5M261.4K
12MSFTMICROSOFT CORPCOM0.95%$3M25.0K
13AABAUSDALTABA INCCOM0.84%$3M35.0K
14IBKRINTERACTIVE BROKERS GROUP INCOM CL A0.83%$3M49.6K
15EOGEOG RES INCCOM0.79%$2M25.9K
16JPMJPMORGAN CHASE & COCOM0.79%$2M24.1K
17SPGIS&P GLOBAL INCCOM0.75%$2M11.0K
18COR1EURCORESITE RLTY CORPCOM0.69%$2M20.0K
19GCI LIBERTY INCCOM CLASS A0.69%$2M38.4K
20BLKCHFBLACKROCK INCCOM0.68%$2M4.9K
21DXCDXC TECHNOLOGY COCOM0.67%$2M32.2K
22MUMICRON TECHNOLOGY INCCOM0.65%$2M48.5K
23BENFRANKLIN RES INCCOM0.65%$2M60.4K
24MTNVAIL RESORTS INCCOM0.56%$2M8.0K
25PJTPJT PARTNERS INCCOM CL A0.56%$2M41.5K
26METAFACEBOOK INCCL A0.53%$2M9.8K
27NUENUCOR CORPCOM0.53%$2M28.0K
28ADBEADOBE INCCOM0.52%$2M6.0K
29DHRDANAHER CORPORATIONCOM0.47%$1M11.0K
30DUTMOODYS CORPCOM0.47%$1M8.0K
31AKAMAKAMAI TECHNOLOGIES INCCOM0.46%$1M20.0K
32EFXEQUIFAX INCCOM0.46%$1M12.0K
33FOXFOX CORPCL B COM0.45%$1M39.3K
34EVREVERCORE INCCLASS A0.44%$1M15.0K
35PNCPNC FINL SVCS GROUP INCCOM0.41%$1M10.4K
36CTRACABOT OIL & GAS CORPCOM0.40%$1M48.0K
37TMUST MOBILE US INCCOM0.40%$1M18.0K
38HLIHOULIHAN LOKEY INCCL A0.37%$1M25.0K
39AURORA CANNABIS INCCOM0.37%$1M125.1K
40WMTWALMART INCCOM0.35%$1M11.0K
41NTRNUTRIEN LTDCOM0.34%$1M19.8K
42CMCSACOMCAST CORP NEWCL A0.32%$1M25.0K
43HDHOME DEPOT INCCOM0.31%$959,0005.0K
44TECHNIPFMC PLCCOM0.30%$941,00040.0K
45FTAIEURFORTRESS TRANS INFRST INVS LCOM REP LTD LIAB0.30%$941,00055.0K
46MLMMARTIN MARIETTA MATLS INCCOM0.29%$905,0004.5K
47CLRUSDCONTINENTAL RESOURCES INCCOM0.29%$895,00020.0K
48YUMCYUM CHINA HLDGS INCCOM0.27%$853,00019.0K
49WFCWELLS FARGO CO NEWCOM0.27%$846,00017.5K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$692M197May 7, 202613F-HRchanges · EDGAR ↗
Q4 2025$666M193Jan 30, 202613F-HRchanges · EDGAR ↗
Q3 2025$648M190Nov 12, 202513F-HRchanges · EDGAR ↗
Q2 2025$611M190Aug 13, 202513F-HRchanges · EDGAR ↗
Q1 2025$576M193May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$637M192Feb 11, 202513F-HRchanges · EDGAR ↗
Q3 2024$598M188Nov 14, 202413F-HRchanges · EDGAR ↗
Q2 2024$545M178Jul 30, 202413F-HRchanges · EDGAR ↗
Q1 2024$544M176May 1, 202413F-HRchanges · EDGAR ↗
Q4 2023$523M175Feb 1, 202413F-HRchanges · EDGAR ↗
Q3 2023$467M165Nov 7, 202313F-HRchanges · EDGAR ↗
Q2 2023$471M154Aug 15, 2023RESTATEMENTchanges · EDGAR ↗
Q1 2023$427M150May 11, 202313F-HRchanges · EDGAR ↗
Q4 2022$401M163Feb 13, 202313F-HRchanges · EDGAR ↗
Q3 2022$372M167Nov 7, 202213F-HRchanges · EDGAR ↗
Q2 2022$412M176Aug 5, 202213F-HRchanges · EDGAR ↗
Q1 2022$488M182May 16, 202213F-HRchanges · EDGAR ↗
Q4 2021$538M185Feb 14, 202213F-HRchanges · EDGAR ↗
Q3 2021$500M183Oct 29, 202113F-HRchanges · EDGAR ↗
Q2 2021$506M187Aug 3, 202113F-HRchanges · EDGAR ↗
Q1 2021$451M199May 4, 202113F-HRchanges · EDGAR ↗
Q4 2020$447M168Feb 11, 202113F-HRchanges · EDGAR ↗
Q3 2020$426M154Nov 9, 202013F-HRchanges · EDGAR ↗
Q2 2020$390M150Aug 3, 202013F-HRchanges · EDGAR ↗
Q1 2020$330M136May 21, 202013F-HRchanges · EDGAR ↗
Q4 2019$369M164Feb 13, 202013F-HRchanges · EDGAR ↗
Q3 2019$349M164Nov 13, 201913F-HRchanges · EDGAR ↗
Q2 2019$335M164Aug 14, 201913F-HRchanges · EDGAR ↗
Q1 2019$310M162May 15, 201913F-HRchanges · EDGAR ↗
Q4 2018$257M164Feb 15, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.