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 Market Cap. of $2 Billions to $10 Billions

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$6B
$12.9 Million 2.09% of portfolio
186,832
Q2 2025 Added 300.0%
$4.04B
$7.38 Million 1.2% of portfolio
41,519
Q3 2017 Added 53.77%
$2.26B
$6.67 Million 1.09% of portfolio
155,408
Q4 2024 Reduced 6.05%
$8.94B
$5.13 Million 0.84% of portfolio
25,000
Q1 2018 Added 25.0%
$2.55B
$2.27 Million 0.37% of portfolio
40,799
Q3 2025 Added 9.13%
$2.17B
$1.9 Million 0.31% of portfolio
29,000
Q3 2025 Added 26.09%
$8.39B
$1.65 Million 0.27% of portfolio
13,000
Q4 2024 Added 30.0%
$6.2B
$1.19 Million 0.19% of portfolio
18,674
Q2 2023 Added 24.33%
$6.81B
$1.13 Million 0.18% of portfolio
12,000
Q2 2017 New
$5.22B
$1.09 Million 0.18% of portfolio
21,455
Q3 2018 New
$3.87B
$1.06 Million 0.17% of portfolio
14,800
Q3 2018 Added 25.42%
$8.51B
$780,000 0.13% of portfolio
9,000
Q1 2025 Added 28.57%
$5.89B
$747,000 0.12% of portfolio
5,000
Q1 2025 Reduced 37.5%
$2.39B
$763,000 0.12% of portfolio
10,000
Q2 2017 New
$5.68B
$727,000 0.12% of portfolio
4,500
Q4 2020 New
$2.43B
$657,000 0.11% of portfolio
18,644
Q2 2024 New
$9.87B
$596,000 0.1% of portfolio
2,500
Q4 2020 New
$8.94B
$552,000 0.09% of portfolio
1,300
Q1 2025 Added 62.5%
$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%
$6.93B
$448,000 0.07% of portfolio
6,000
Q2 2017 New
$3.07B
$318,000 0.05% of portfolio
10,000
Q4 2023 New
$2.32B
$231,000 0.04% of portfolio
12,000
Q4 2024 Reduced 14.29%
$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
$6.08B
$253,000 0.04% of portfolio
11,550
Q3 2025 Reduced 41.6%
$3.64B
$205,000 0.03% of portfolio
4,000
Q2 2025 Added 60.0%
$4.14B
$160,000 0.03% of portfolio
17,500
Q2 2017 New
$2.27B
$64,000 0.01% of portfolio
10,000
Q3 2018 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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