Harbor Advisors LLC

All Holdings — 2025 Q4

AI Portfolio Summary
In 2025 Q4, Harbor Advisors LLC maintained a portfolio of 203 distinct positions. They heavily accumulated shares in META PLATFORMS INC, increasing their position by 7.8%. The fund also reduced its exposure to AMAZON COM INC by 1.0%.
PCA Score Concentration Risk
Risk ENB
Total Positions
203
Quarter
2025 Q4
Top Holding
EQIX (29.1%)
Top 10 Concentration
63.4%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 203
Stock History Sector / Type Port % Prev % Rank / Prev Conviction Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
EQIX
EQUINIX INC
Real Estate 29.09% 30.54% #1
Prev: #1
7.0 no change no change
P
S
252,790 $193,677,586 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
GOOGL
ALPHABET INC
Communication Services 7.31% 5.83% #2
Prev: #2
5.4 no change no change
P
S
155,600 $48,702,800 2017 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
AAPL
APPLE INC
Technology 6.06% 5.83% #3
Prev: #3
4.4 no change no change
P
S
148,400 $40,344,024 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
AMZN
AMAZON COM INC
Consumer Cyclical 5.31% 5.24% #4
Prev: #4
3.1 -1,500 -1.0%
P
S
153,200 $35,361,624 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
NVDA
NVIDIA CORPORAT...
Technology 5.04% 5.18% #5
Prev: #5
3.5 no change no change
P
S
180,000 $33,570,000 2017 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
CNQ
CANADIAN NAT RE...
Energy 2.54% 2.46% #6
Prev: #6
2.0 no change no change
P
S
499,800 $16,918,230 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
MA
MASTERCARD INCO...
Financial Services 2.23% 2.28% #7
Prev: #7
1.9 no change no change
P
S
26,000 $14,842,880 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
MU
MICRON TECHNOLO...
Technology 2.08% 1.25% #8 5
Prev: #13
1.8 no change no change
P
S
48,500 $13,842,385 2017 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
MSFT
MICROSOFT CORP
Technology 1.89% 2.08% #9 1
Prev: #8
1.8 no change no change
P
S
26,000 $12,574,120 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
IBKR
INTERACTIVE BRO...
Financial Services 1.80% 1.98% #10 1
Prev: #9
1.7 no change no change
P
S
186,832 $12,015,166 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
FTAI
FTAI AVIATION L...
Industrials 1.69% 1.47% #11 1
Prev: #10
1.7 no change no change
P
S
57,000 $11,220,450 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
FERG
FERGUSON ENTERP...
Industrials 1.38% 1.43% #12
Prev: #12
1.6 no change no change
P
S
41,255 $9,184,601 2024 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
META
META PLATFORMS ...
Communication Services 1.37% 1.45% #13 2
Prev: #11
2.5 1,000 7.8%
P
S
13,800 $9,109,242 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
JPM
JPMORGAN CHASE ...
Financial Services 1.17% 1.17% #14
Prev: #14
1.5 no change no change
P
S
24,148 $7,780,969 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
NTB
BANK OF NT BUTT...
Financial Services 1.16% 1.03% #15 1
Prev: #16
1.5 no change no change
P
S
155,408 $7,742,427 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
SPGI
S&P GLOBAL INC
Financial Services 1.07% 1.03% #16 1
Prev: #17
1.4 no change no change
P
S
13,667 $7,142,238 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
PJT
PJT PARTNERS IN...
Financial Services 1.04% 1.14% #17 2
Prev: #15
1.4 no change no change
P
S
41,519 $6,941,977 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
GOOG
ALPHABET INC
Communication Services 0.94% 0.75% #18 3
Prev: #21
1.4 no change no change
P
S
20,000 $6,276,000 2017 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
EVR
EVERCORE INC
Financial Services 0.77% 0.78% #19
Prev: #19
1.3 no change no change
P
S
15,000 $5,103,750 2017 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
NUE
NUCOR CORP
Basic Materials 0.69% 0.58% #20 6
Prev: #26
1.3 no change no change
P
S
27,992 $4,565,775 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
HLI
HOULIHAN LOKEY ...
Financial Services 0.65% 0.79% #21 3
Prev: #18
1.3 no change no change
P
S
25,000 $4,354,750 2017 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
BLK
BLACKROCK INC
Financial Services 0.63% 0.71% #22
Prev: #22
1.3 no change no change
P
S
3,924 $4,200,014 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
TMUS
T-MOBILE US INC
Communication Services 0.63% 0.76% #23 3
Prev: #20
1.3 no change no change
P
S
20,650 $4,192,776 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
MCO
MOODYS CORP
Financial Services 0.61% 0.59% #24 1
Prev: #25
1.2 no change no change
P
S
8,000 $4,086,800 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
DLR
DIGITAL RLTY TR...
Real Estate 0.59% 0.68% #25 2
Prev: #23
1.2 no change no change
P
S
25,552 $3,953,150 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
WMT
WALMART INC
Consumer Defensive 0.55% 0.52% #26 1
Prev: #27
1.2 no change no change
P
S
33,000 $3,676,530 2017 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
CHTR
CHARTER COMMUNI...
Communication Services 0.50% 0.68% #27 3
Prev: #24
1.2 no change no change
P
S
15,942 $3,327,893 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
CRWD
CROWDSTRIKE HLD...
Technology 0.44% 0.47% #28 2
Prev: #30
1.2 no change no change
P
S
6,250 $2,929,750 2023 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
DHR
DANAHER CORPORA...
Healthcare 0.43% 0.38% #29 6
Prev: #35
1.2 no change no change
P
S
12,505 $2,862,645 2017 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
MLM
MARTIN MARIETTA...
Basic Materials 0.42% 0.44% #30 2
Prev: #32
1.2 no change no change
P
S
4,500 $2,801,970 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
EOG
EOG RES INC
Energy 0.41% 0.45% #31
Prev: #31
1.2 no change no change
P
S
25,900 $2,719,759 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
FOX
FOX CORP
Communication Services 0.40% 0.36% #32 4
Prev: #36
1.2 no change no change
P
S
41,265 $2,679,401 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
EFX
EQUIFAX INC
Industrials 0.39% 0.47% #33 4
Prev: #29
1.2 no change no change
P
S
12,000 $2,603,760 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
MCB
METROPOLITAN BK...
Financial Services 0.36% 0.36% #34 3
Prev: #37
1.1 no change no change
P
S
31,500 $2,405,340 2023 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
ARES
ARES MANAGEMENT...
Financial Services 0.35% 0.36% #35 4
Prev: #39
1.1 no change no change
P
S
14,500 $2,343,635 2021 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
NBIS
NEBIUS GROUP N....
Communication Services 0.35% 0.48% #36 8
Prev: #28
1.1 no change no change
P
S
27,600 $2,310,258 2017 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
APO
APOLLO GLOBAL M...
Financial Services 0.35% 0.33% #37 6
Prev: #43
1.1 no change no change
P
S
15,947 $2,308,632 2022 Q1 13F Filing 2025-12-31 2026-02-14 (Est.)
PANW
PALO ALTO NETWO...
Technology 0.35% 0.39% #38 4
Prev: #34
1.1 no change no change
P
S
12,500 $2,302,500 2023 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
FBK
FB FINL CORP
Financial Services 0.34% 0.35% #39 1
Prev: #40
1.1 no change no change
P
S
40,799 $2,276,584 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
PNC
PNC FINL SVCS G...
Financial Services 0.33% 0.32% #40 6
Prev: #46
1.1 no change no change
P
S
10,444 $2,179,976 2018 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
AJG
GALLAGHER ARTHU...
Financial Services 0.33% 0.40% #41 8
Prev: #33
1.1 no change no change
P
S
8,375 $2,167,366 2023 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
GE
GE AEROSPACE
Industrials 0.32% 0.32% #42 3
Prev: #45
1.1 no change no change
P
S
7,000 $2,156,210 2017 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
BX
BLACKSTONE INC
Financial Services 0.32% 0.36% #43 5
Prev: #38
1.1 no change no change
P
S
13,700 $2,111,718 2022 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
ADBE
ADOBE INC
Technology 0.32% 0.33% #44
Prev: #44
1.1 no change no change
P
S
6,000 $2,099,940 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
HLT
HILTON WORLDWID...
Consumer Cyclical 0.31% 0.29% #45 7
Prev: #52
1.1 no change no change
P
S
7,133 $2,048,954 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
PLTR
PALANTIR TECHNO...
Technology 0.29% 0.31% #46 2
Prev: #48
1.1 no change no change
P
S
11,000 $1,955,250 2023 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
CVX
CHEVRON CORP NE...
Energy 0.29% 0.30% #47 2
Prev: #49
1.1 no change no change
P
S
12,572 $1,916,099 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
BRO
BROWN & BROWN I...
Financial Services 0.29% 0.35% #48 7
Prev: #41
1.1 no change no change
P
S
24,000 $1,912,800 2017 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
HD
HOME DEPOT INC
Consumer Cyclical 0.28% 0.34% #49 7
Prev: #42
1.1 no change no change
P
S
5,500 $1,892,550 2017 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
WFC
WELLS FARGO CO ...
Financial Services 0.28% 0.26% #50 4
Prev: #54
1.1 no change no change
P
S
20,000 $1,864,000 2016 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
Showing 1-50 of 203 holdings

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