Harbor Advisors LLC 13F Portfolio

CIK 1687156 Filing since Q4 2016 Q2 2026 filed Jul 27, 2026
Holdings as of Jun 30, 2026, from the 13F filed Jul 27, 2026.

Portfolio Snapshot

188 positions · Q2 2026

Harbor Advisors LLC reported 188 positions worth $791.83M for the quarter ended Jun 30, 2026, up 15.3% on the prior quarter. It opened 9 new positions, added to 7, trimmed 4 and exited 12. Its largest holding is Equinix Inc at 31.5% of the portfolio.

Portfolio Value
$791.83M
+15.3% QoQ · +31.3% YoY
Positions
188
9 new · 12 sold out
Top 10 Concentration
68.1%
of portfolio value
Largest Position
EQIX 31.5%
Equinix Inc
Net Buying
+$379.90K
$6.17M bought · $5.79M sold
Turnover
0.8%
of the portfolio traded
Top Sector
Technology
63% of value
Track Record
39
quarters on file since Q4 2016

Portfolio Value & Positions

Value Positions

Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.

Sector Allocation

11 sectors
62.96%
Technology
Technology62.96%
Financial Services15.92%
Industrials6.02%
Consumer Discretionary5.76%
Energy3.87%
Basic Materials1.31%
Healthcare1.24%
Communication Services1.06%
Real Estate1.05%
Consumer Staples0.732%
Other0.088%

Quarterly Buying & Selling

Bought Sold

Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.

Position Changes

How many positions were opened, added to, trimmed or closed each quarter.

Sector Allocation Over Time

Share of reported value in each sector at every quarter end.

TechnologyFinancial ServicesIndustrialsConsumer DiscretionaryEnergyBasic MaterialsHealthcareCommunication ServicesReal EstateConsumer StaplesOtherUtilities

Largest Buys

Q2 2026
Holding Change Change % Trade Value Weight
DVN Devon Energy Corp +42.0K +406.9% $1.74M 0.273%
DLR Digital Realty Trust, Inc. +5,000 +19.6% $897.90K 0.693%
MCD Mcdonalds Corp +2,000 – $540.62K 0.068%
TRLV Trulieve Cannabis Corp. +42.6K – $484.19K 0.061%
TCBX Third Coast Bancshares, Inc. +10.0K – $404.00K 0.051%
GDS GDS Holdings Ltd +12.5K +26.3% $375.38K 0.228%
NOW ServiceNow, Inc. +3,000 – $297.84K 0.038%
NVTS Navitas Semiconductor Corp +15.0K – $268.80K 0.034%
WLFC Willis Lease Finance Corp +3,000 +50.0% $228.80K 0.087%
UPS United Parcel Service Inc +2,000 – $215.00K 0.027%

Largest Sells

Q2 2026
Holding Change Change % Trade Value Weight
XOM ExxonMobil Holdings Corp -8,057 -100.0% $1.37M Exited
MU Micron Technology Inc -1,000 -2.0% $1.15M 7.29%
CIFR Cipher Digital Inc. -20.0K -66.7% $490.00K 0.031%
CNC Centene Corp -5,000 -41.7% $320.95K 0.057%
LBTYK Liberty Global Ltd. -24.3K -100.0% $285.27K Exited
VSNT Versant Media Group, Inc. -7,500 -100.0% $277.65K Exited
HCA HCA Healthcare, Inc. -500 -100.0% $236.62K Exited
ISRG Intuitive Surgical Inc -500 -100.0% $230.50K Exited
KGC Kinross Gold Corp -7,400 -100.0% $225.85K Exited
DOW Dow Inc. -5,000 -100.0% $208.25K Exited

New Positions

Q2 2026
Holding Shares Trade Value Weight
MCD Mcdonalds Corp +2,000 $540.62K 0.068%
TRLV Trulieve Cannabis Corp. +42.6K $484.19K 0.061%
TCBX Third Coast Bancshares, Inc. +10.0K $404.00K 0.051%
NOW ServiceNow, Inc. +3,000 $297.84K 0.038%
NVTS Navitas Semiconductor Corp +15.0K $268.80K 0.034%
UPS United Parcel Service Inc +2,000 $215.00K 0.027%
EROC ERock, Inc. +11.6K $168.20K 0.021%
BTDR Bitdeer Technologies Group +10.0K $158.70K 0.02%
FRMI Fermi Inc. +10.0K $91.60K 0.012%

Closed Positions

Q2 2026
Holding Shares Sold Trade Value Prior Weight
XOM ExxonMobil Holdings Corp -8,057 $1.37M 0.199%
LBTYK Liberty Global Ltd. -24.3K $285.27K 0.042%
VSNT Versant Media Group, Inc. -7,500 $277.65K 0.04%
HCA HCA Healthcare, Inc. -500 $236.62K 0.034%
ISRG Intuitive Surgical Inc -500 $230.50K 0.034%
KGC Kinross Gold Corp -7,400 $225.85K 0.033%
DOW Dow Inc. -5,000 $208.25K 0.03%
HSY Hershey Co -1,000 $207.89K 0.03%
B Barrick Mining Corp -5,000 $203.95K 0.03%
KURA Kura Oncology, Inc. -20.0K $162.60K 0.024%
Holdings · Q2 2026

188 Positions

As ofJun 30, 2026
Value$791.83M
Top 1068.1%
Avg position$4.21M
# Activity
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Showing 1–15 of 188 positions 13F filings on SEC EDGAR

Tip. Select a row to see that position’s full history at Harbor Advisors.

About Harbor Advisors LLC’s 13F Portfolio

What are Harbor Advisors LLC’s largest holdings?

As of its Q2 2026 13F filing, Harbor Advisors LLC’s five largest positions were Equinix Inc (EQIX) at 31.5%, Micron Technology Inc (MU) at 7.3%, Alphabet Inc. (GOOGL) at 6.6%, Apple Inc. (AAPL) at 5.4%, Amazon Com Inc (AMZN) at 4.6% of the reported portfolio.

How much is Harbor Advisors LLC’s portfolio worth?

Harbor Advisors LLC reported a 13F portfolio worth $791.83M across 188 positions for Q2 2026. That is up 15.3% from the previous quarter.

What did Harbor Advisors LLC buy in Q2 2026?

Its largest purchases by value were Devon Energy Corp ($1.74M), Digital Realty Trust, Inc. ($897.90K), Mcdonalds Corp ($540.62K). It opened 9 new positions.

What did Harbor Advisors LLC sell in Q2 2026?

Its largest sales by value were ExxonMobil Holdings Corp ($1.37M), Micron Technology Inc ($1.15M), Cipher Digital Inc. ($490.00K). It exited 12 positions entirely.

Where does this data come from?

From the Form 13F-HR reports Harbor Advisors LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.

Similar-Sized Institutions

by reported 13F value

13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.