Filed: 5/7/2026ACC: 0001214659-26-005743
📋 What this filing means
HARBOR ADVISORS LLC filed this quarterly 13F‑HR report disclosing 197 equity positions with a total reported market value of $692.18M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
197
Positions
$692.18M
Total AUM (reported)
4.31M
Total Shares
Allocation by class
COM$517.77M74.8%
CAP STK CL A$41.87M6.0%
CL A$36.57M5.3%
COM CL A$23.03M3.3%
SHS$15.64M2.3%
COMMON STOCK NEW$9.62M1.4%
COM NEW$8.56M1.2%
Portfolio Concentration
Top 3$314.04M45.4%
4–10$144.37M20.9%
11–25$89.16M12.9%
Rest$144.60M20.9%
Top 3 weight
45.4%
Top 10 weight
66.2%
Voting Authority Distribution
Total shares with voting rights: 4.31M
Sole
Full voting authority
4.31M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole197
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings197
Rows:
EQUINIX INC
SOLEShares239.24K
TypeSH
Market value$234.51M
33.88%
Sole
239.24K
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares145.60K
TypeSH
Market value$41.87M
6.05%
Sole
145.60K
Shared
0.00
None
0.00
APPLE INC
SOLEShares148.40K
TypeSH
Market value$37.66M
5.44%
Sole
148.40K
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares153.20K
TypeSH
Market value$31.91M
4.61%
Sole
153.20K
Shared
0.00
None
0.00
NVIDIA CORPORATION
SOLEShares180K
TypeSH
Market value$31.39M
4.54%
Sole
180K
Shared
0.00
None
0.00
CANADIAN NAT RES LTD MED TER
SOLEShares499.80K
TypeSH
Market value$24.36M
3.52%
Sole
499.80K
Shared
0.00
None
0.00
MICRON TECHNOLOGY INC
SOLEShares51K
TypeSH
Market value$17.23M
2.49%
Sole
51K
Shared
0.00
None
0.00
FTAI AVIATION LTD
SOLEShares57K
TypeSH
Market value$13.96M
2.02%
Sole
57K
Shared
0.00
None
0.00
MASTERCARD INCORPORATED
SOLEShares26K
TypeSH
Market value$12.99M
1.88%
Sole
26K
Shared
0.00
None
0.00
INTERACTIVE BROKERS GROUP IN
SOLEShares186.83K
TypeSH
Market value$12.53M
1.81%
Sole
186.83K
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares26.50K
TypeSH
Market value$9.81M
1.42%
Sole
26.50K
Shared
0.00
None
0.00
FERGUSON ENTERPRISES INC
SOLEShares41.26K
TypeSH
Market value$9.62M
1.39%
Sole
41.26K
Shared
0.00
None
0.00
META PLATFORMS INC
SOLEShares13.80K
TypeSH
Market value$7.90M
1.14%
Sole
13.80K
Shared
0.00
None
0.00
BANK OF N T BUTTERFIELD & SO
SOLEShares144.91K
TypeSH
Market value$7.60M
1.10%
Sole
144.91K
Shared
0.00
None
0.00
JPMORGAN CHASE & CO
SOLEShares24.15K
TypeSH
Market value$7.10M
1.03%
Sole
24.15K
Shared
0.00
None
0.00
S&P GLOBAL INC
SOLEShares13.67K
TypeSH
Market value$5.81M
0.84%
Sole
13.67K
Shared
0.00
None
0.00
PJT PARTNERS INC
SOLEShares41.52K
TypeSH
Market value$5.80M
0.84%
Sole
41.52K
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares20K
TypeSH
Market value$5.74M
0.83%
Sole
20K
Shared
0.00
None
0.00
NUCOR CORP
SOLEShares27.99K
TypeSH
Market value$4.73M
0.68%
Sole
27.99K
Shared
0.00
None
0.00
DIGITAL RLTY TR INC
SOLEShares25.55K
TypeSH
Market value$4.60M
0.67%
Sole
25.55K
Shared
0.00
None
0.00
EVERCORE INC
SOLEShares15K
TypeSH
Market value$4.48M
0.65%
Sole
15K
Shared
0.00
None
0.00
T-MOBILE US INC
SOLEShares20.65K
TypeSH
Market value$4.34M
0.63%
Sole
20.65K
Shared
0.00
None
0.00
WALMART INC
SOLEShares33K
TypeSH
Market value$4.10M
0.59%
Sole
33K
Shared
0.00
None
0.00
BLACKROCK INC
SOLEShares3.92K
TypeSH
Market value$3.77M
0.55%
Sole
3.92K
Shared
0.00
None
0.00
EOG RES INC
SOLEShares25.90K
TypeSH
Market value$3.74M
0.54%
Sole
25.90K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
EQUINIX INCSOLE | COM | 239.24K | SH | $234.51M 33.88% | 239.24K | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL A | 145.60K | SH | $41.87M 6.05% | 145.60K | 0.00 | 0.00 |
APPLE INCSOLE | COM | 148.40K | SH | $37.66M 5.44% | 148.40K | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 153.20K | SH | $31.91M 4.61% | 153.20K | 0.00 | 0.00 |
NVIDIA CORPORATIONSOLE | COM | 180K | SH | $31.39M 4.54% | 180K | 0.00 | 0.00 |
CANADIAN NAT RES LTD MED TERSOLE | COM | 499.80K | SH | $24.36M 3.52% | 499.80K | 0.00 | 0.00 |
MICRON TECHNOLOGY INCSOLE | COM | 51K | SH | $17.23M 2.49% | 51K | 0.00 | 0.00 |
FTAI AVIATION LTDSOLE | SHS | 57K | SH | $13.96M 2.02% | 57K | 0.00 | 0.00 |
MASTERCARD INCORPORATEDSOLE | CL A | 26K | SH | $12.99M 1.88% | 26K | 0.00 | 0.00 |
INTERACTIVE BROKERS GROUP INSOLE | COM CL A | 186.83K | SH | $12.53M 1.81% | 186.83K | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COM | 26.50K | SH | $9.81M 1.42% | 26.50K | 0.00 | 0.00 |
FERGUSON ENTERPRISES INCSOLE | COMMON STOCK NEW | 41.26K | SH | $9.62M 1.39% | 41.26K | 0.00 | 0.00 |
META PLATFORMS INCSOLE | CL A | 13.80K | SH | $7.90M 1.14% | 13.80K | 0.00 | 0.00 |
BANK OF N T BUTTERFIELD & SOSOLE | SHS NEW | 144.91K | SH | $7.60M 1.10% | 144.91K | 0.00 | 0.00 |
JPMORGAN CHASE & COSOLE | COM | 24.15K | SH | $7.10M 1.03% | 24.15K | 0.00 | 0.00 |
S&P GLOBAL INCSOLE | COM | 13.67K | SH | $5.81M 0.84% | 13.67K | 0.00 | 0.00 |
PJT PARTNERS INCSOLE | COM CL A | 41.52K | SH | $5.80M 0.84% | 41.52K | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL C | 20K | SH | $5.74M 0.83% | 20K | 0.00 | 0.00 |
NUCOR CORPSOLE | COM | 27.99K | SH | $4.73M 0.68% | 27.99K | 0.00 | 0.00 |
DIGITAL RLTY TR INCSOLE | COM | 25.55K | SH | $4.60M 0.67% | 25.55K | 0.00 | 0.00 |
EVERCORE INCSOLE | CLASS A | 15K | SH | $4.48M 0.65% | 15K | 0.00 | 0.00 |
T-MOBILE US INCSOLE | COM | 20.65K | SH | $4.34M 0.63% | 20.65K | 0.00 | 0.00 |
WALMART INCSOLE | COM | 33K | SH | $4.10M 0.59% | 33K | 0.00 | 0.00 |
BLACKROCK INCSOLE | COM | 3.92K | SH | $3.77M 0.55% | 3.92K | 0.00 | 0.00 |
EOG RES INCSOLE | COM | 25.90K | SH | $3.74M 0.54% | 25.90K | 0.00 | 0.00 |
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