Filed: 5/15/2025ACC: 0001214659-25-007679
📋 What this filing means
HARBOR ADVISORS LLC filed this quarterly 13F‑HR report disclosing 193 equity positions with a total reported market value of $575.95M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
193
Positions
$575.95M
Total AUM (reported)
4.18M
Total Shares
Allocation by class
COM$443.37M77.0%
CL A$40.18M7.0%
CAP STK CL A$24.06M4.2%
COM CL A$16.94M2.9%
SHS$8.78M1.5%
COM NEW$7.92M1.4%
COMMON STOCK NEW$6.61M1.1%
Portfolio Concentration
Top 3$268.27M46.6%
4–10$98.09M17.0%
11–25$75.00M13.0%
Rest$134.60M23.4%
Top 3 weight
46.6%
Top 10 weight
63.6%
Voting Authority Distribution
Total shares with voting rights: 4.18M
Sole
Full voting authority
4.18M
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)
Sole193
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings193
Rows:
EQUINIX INC
SOLEShares252.49K
TypeSH
Market value$205.87M
35.74%
Sole
252.49K
Shared
0.00
None
0.00
APPLE INC
SOLEShares148.40K
TypeSH
Market value$32.96M
5.72%
Sole
148.40K
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares154.70K
TypeSH
Market value$29.43M
5.11%
Sole
154.70K
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares155.60K
TypeSH
Market value$24.06M
4.18%
Sole
155.60K
Shared
0.00
None
0.00
NVIDIA CORPORATION
SOLEShares180K
TypeSH
Market value$19.51M
3.39%
Sole
180K
Shared
0.00
None
0.00
CANADIAN NAT RES LTD
SOLEShares499.80K
TypeSH
Market value$15.39M
2.67%
Sole
499.80K
Shared
0.00
None
0.00
MASTERCARD INCORPORATED
SOLEShares26K
TypeSH
Market value$14.25M
2.47%
Sole
26K
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares26K
TypeSH
Market value$9.76M
1.69%
Sole
26K
Shared
0.00
None
0.00
INTERACTIVE BROKERS GROUP IN
SOLEShares46.71K
TypeSH
Market value$7.73M
1.34%
Sole
46.71K
Shared
0.00
None
0.00
META PLATFORMS INC
SOLEShares12.80K
TypeSH
Market value$7.38M
1.28%
Sole
12.80K
Shared
0.00
None
0.00
S&P GLOBAL INC
SOLEShares13.67K
TypeSH
Market value$6.94M
1.21%
Sole
13.67K
Shared
0.00
None
0.00
FERGUSON ENTERPRISES INC
SOLEShares41.26K
TypeSH
Market value$6.61M
1.15%
Sole
41.26K
Shared
0.00
None
0.00
FTAI AVIATION LTD
SOLEShares57K
TypeSH
Market value$6.33M
1.10%
Sole
57K
Shared
0.00
None
0.00
BANK OF NT BUTTERFIELD&SON L
SOLEShares155.41K
TypeSH
Market value$6.05M
1.05%
Sole
155.41K
Shared
0.00
None
0.00
JPMORGAN CHASE & CO.
SOLEShares24.15K
TypeSH
Market value$5.92M
1.03%
Sole
24.15K
Shared
0.00
None
0.00
CHARTER COMMUNICATIONS INC N
SOLEShares15.94K
TypeSH
Market value$5.88M
1.02%
Sole
15.94K
Shared
0.00
None
0.00
PJT PARTNERS INC
SOLEShares41.52K
TypeSH
Market value$5.72M
0.99%
Sole
41.52K
Shared
0.00
None
0.00
T-MOBILE US INC
SOLEShares20.65K
TypeSH
Market value$5.51M
0.96%
Sole
20.65K
Shared
0.00
None
0.00
MICRON TECHNOLOGY INC
SOLEShares48.50K
TypeSH
Market value$4.21M
0.73%
Sole
48.50K
Shared
0.00
None
0.00
HOULIHAN LOKEY INC
SOLEShares25K
TypeSH
Market value$4.04M
0.70%
Sole
25K
Shared
0.00
None
0.00
MOODYS CORP
SOLEShares8K
TypeSH
Market value$3.73M
0.65%
Sole
8K
Shared
0.00
None
0.00
BLACKROCK INC
SOLEShares3.92K
TypeSH
Market value$3.71M
0.64%
Sole
3.92K
Shared
0.00
None
0.00
DIGITAL RLTY TR INC
SOLEShares25.55K
TypeSH
Market value$3.66M
0.64%
Sole
25.55K
Shared
0.00
None
0.00
NUCOR CORP
SOLEShares27.99K
TypeSH
Market value$3.37M
0.58%
Sole
27.99K
Shared
0.00
None
0.00
EOG RES INC
SOLEShares25.90K
TypeSH
Market value$3.32M
0.58%
Sole
25.90K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
EQUINIX INCSOLE | COM | 252.49K | SH | $205.87M 35.74% | 252.49K | 0.00 | 0.00 |
APPLE INCSOLE | COM | 148.40K | SH | $32.96M 5.72% | 148.40K | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 154.70K | SH | $29.43M 5.11% | 154.70K | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL A | 155.60K | SH | $24.06M 4.18% | 155.60K | 0.00 | 0.00 |
NVIDIA CORPORATIONSOLE | COM | 180K | SH | $19.51M 3.39% | 180K | 0.00 | 0.00 |
CANADIAN NAT RES LTDSOLE | COM | 499.80K | SH | $15.39M 2.67% | 499.80K | 0.00 | 0.00 |
MASTERCARD INCORPORATEDSOLE | CL A | 26K | SH | $14.25M 2.47% | 26K | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COM | 26K | SH | $9.76M 1.69% | 26K | 0.00 | 0.00 |
INTERACTIVE BROKERS GROUP INSOLE | COM CL A | 46.71K | SH | $7.73M 1.34% | 46.71K | 0.00 | 0.00 |
META PLATFORMS INCSOLE | CL A | 12.80K | SH | $7.38M 1.28% | 12.80K | 0.00 | 0.00 |
S&P GLOBAL INCSOLE | COM | 13.67K | SH | $6.94M 1.21% | 13.67K | 0.00 | 0.00 |
FERGUSON ENTERPRISES INCSOLE | COMMON STOCK NEW | 41.26K | SH | $6.61M 1.15% | 41.26K | 0.00 | 0.00 |
FTAI AVIATION LTDSOLE | SHS | 57K | SH | $6.33M 1.10% | 57K | 0.00 | 0.00 |
BANK OF NT BUTTERFIELD&SON LSOLE | SHS NEW | 155.41K | SH | $6.05M 1.05% | 155.41K | 0.00 | 0.00 |
JPMORGAN CHASE & CO.SOLE | COM | 24.15K | SH | $5.92M 1.03% | 24.15K | 0.00 | 0.00 |
CHARTER COMMUNICATIONS INC NSOLE | CL A | 15.94K | SH | $5.88M 1.02% | 15.94K | 0.00 | 0.00 |
PJT PARTNERS INCSOLE | COM CL A | 41.52K | SH | $5.72M 0.99% | 41.52K | 0.00 | 0.00 |
T-MOBILE US INCSOLE | COM | 20.65K | SH | $5.51M 0.96% | 20.65K | 0.00 | 0.00 |
MICRON TECHNOLOGY INCSOLE | COM | 48.50K | SH | $4.21M 0.73% | 48.50K | 0.00 | 0.00 |
HOULIHAN LOKEY INCSOLE | CL A | 25K | SH | $4.04M 0.70% | 25K | 0.00 | 0.00 |
MOODYS CORPSOLE | COM | 8K | SH | $3.73M 0.65% | 8K | 0.00 | 0.00 |
BLACKROCK INCSOLE | COM | 3.92K | SH | $3.71M 0.64% | 3.92K | 0.00 | 0.00 |
DIGITAL RLTY TR INCSOLE | COM | 25.55K | SH | $3.66M 0.64% | 25.55K | 0.00 | 0.00 |
NUCOR CORPSOLE | COM | 27.99K | SH | $3.37M 0.58% | 27.99K | 0.00 | 0.00 |
EOG RES INCSOLE | COM | 25.90K | SH | $3.32M 0.58% | 25.90K | 0.00 | 0.00 |
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