Harbor Advisors LLC Portfolio Holdings

Harbor Advisors LLC

  • $615 Million
  • Q3 2025

Harbor Advisors LLC has filed its 13F form on November 12, 2025 for Q3 2025 where it was disclosed a total value porftolio of $615 Million distributed in 190 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Equinix Inc with a value of $198M, Apple Inc. with a value of $37.8M, Alphabet Inc. with a value of $37.8M, Amazon Com Inc with a value of $34M, and Nvidia Corp with a value of $33.6M.

Examining the 13F form we can see an increase of $31.6M in the current position value, from $583M to 615M.

Below you can find more details about Harbor Advisors LLC portfolio as well as his latest detailed transactions.

Portfolio value $615 Million
Real Estate: $206 Million
Financial Services: $120 Million
Technology: $113 Million
Communication Services: $66.3 Million
Consumer Cyclical: $43.2 Million
Energy: $26.5 Million
Industrials: $15.4 Million
Healthcare: $10.4 Million
Other: $13.4 Million

Stock Holdings Table

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$49.1B
$599,000 0.1% of portfolio
500
Q4 2023 New
$26.5B
$629,000 0.1% of portfolio
4,398
Q4 2020 New
$59.1B
$549,000 0.09% of portfolio
7,000
Q1 2021 Reduced 58.82%
$8.94B
$552,000 0.09% of portfolio
1,300
Q1 2025 Added 62.5%
$300B
$552,000 0.09% of portfolio
1,600
Q2 2025 Added 220.0%
$7.63B
$567,000 0.09% of portfolio
4,000
Q2 2020 New
$5.65B
$580,000 0.09% of portfolio
15,000
Q3 2025 New
$3.83B
$556,000 0.09% of portfolio
42,260
Q1 2023 Reduced 15.48%
$1.94B
$578,000 0.09% of portfolio
15,671
Q2 2025 New
$45.2B
$567,000 0.09% of portfolio
1,000
Q2 2019 New
$68.5B
$481,000 0.08% of portfolio
3,541
Q4 2020 New
$46.1B
$489,000 0.08% of portfolio
14,000
Q1 2022 Reduced 12.5%
$11B
$491,000 0.08% of portfolio
21,732
Q2 2025 Reduced 18.7%
$76.5B
$471,000 0.08% of portfolio
2,800
Q3 2024 New
$190B
$507,000 0.08% of portfolio
5,000
Q2 2017 New
$323M
$416,000 0.07% of portfolio
20,000
Q3 2019 New
$35.8B
$410,000 0.07% of portfolio
1,500
Q4 2024 New
$6.93B
$448,000 0.07% of portfolio
6,000
Q2 2017 New
$20.3B
$410,000 0.07% of portfolio
3,000
Q4 2021 New
$32.7B
$433,000 0.07% of portfolio
5,000
Q1 2025 Added 150.0%
$20.6B
$428,000 0.07% of portfolio
12,000
Q3 2025 New
$39.8B
$401,000 0.07% of portfolio
8,500
Q3 2024 Added 41.67%
$824M
$432,000 0.07% of portfolio
17,500
Q3 2025 Reduced 12.5%
$522B
$427,000 0.07% of portfolio
2,304
Q3 2023 New
$26.8B
$419,000 0.07% of portfolio
1,500
Q4 2022 New
$37.7B
$445,000 0.07% of portfolio
2,000
Q2 2020 New
$265B
$398,000 0.06% of portfolio
500
Q1 2024 New
$51.8B
$341,000 0.06% of portfolio
1,500
Q4 2020 New
$23.5B
$362,000 0.06% of portfolio
10,330
Q1 2021 New
$237B
$355,000 0.06% of portfolio
1,500
Q2 2024 New
$382M
$367,000 0.06% of portfolio
11,517
Q4 2024 New
$19.8B
$300,000 0.05% of portfolio
4,766
Q3 2024 New
$14.5B
$298,000 0.05% of portfolio
1,000
Q2 2024 New
$3.07B
$318,000 0.05% of portfolio
10,000
Q4 2023 New
$1.46T
$279,000 0.05% of portfolio
1,000
Q2 2025 New
$31.2B
$326,000 0.05% of portfolio
2,000
Q3 2024 New
$2.32B
$231,000 0.04% of portfolio
12,000
Q4 2024 Reduced 14.29%
$99.5B
$225,000 0.04% of portfolio
5,000
Q4 2019 New
$72.7B
$263,000 0.04% of portfolio
200
Q3 2025 New
$100B
$270,000 0.04% of portfolio
1,000
Q3 2024 New
$532M
$237,000 0.04% of portfolio
6,995
Q2 2024 New
$3.05B
$268,000 0.04% of portfolio
10,500
Q1 2024 New
$2.76B
$249,000 0.04% of portfolio
10,000
Q2 2017 New
$68.9B
$252,000 0.04% of portfolio
1,071
Q1 2023 New
$37.5B
$261,000 0.04% of portfolio
4,602
Q1 2024 New
$193B
$223,000 0.04% of portfolio
500
Q4 2024 New
$0
$217,000 0.04% of portfolio
7,000
Q2 2025 New
$92.7B
$260,000 0.04% of portfolio
1,000
Q4 2023 New
$1.75B
$261,000 0.04% of portfolio
29,146
Q2 2017 New

Summary

  • Portfolio
  • No. of Stocks 190
  • Current Value $615 Million
  • Prior Value $583 Million
  • Filing
  • Period Q3 2025
  • Filing Date November 12, 2025
  • Form Type 13F-HR
  • Activity in Q3 2025
  • New Purchases 10 stocks
  • Additional Purchases 8 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 4 stocks
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