Ownership history in Harbor Advisors LLC Β· 37 quarters on record
This page tracks every 13F SEC filing in which Harbor Advisors LLC reported a position in MICROSOFT CORP (MSFT). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β sourced directly from SEC EDGAR 13F filings.
π Harbor Advisors LLC outperformed the S&P 500 by +2.2% annually on this MSFT position. Average cost basis: $375.43. Maximum drawdown during holding period: β30.3%.
β
Outperformed SPY on this position by 2.2% ann.
11 quarters analyzed
Best entry: $333.39 (2023 Q2) Β· Worst: $417.46 (2024 Q4)
πͺ Held through 1 major drawdown (>20%). Strong conviction under pressure.
3 adds Β· 0 trims. Bought during 1 of 9 down-price quarters. π Consistently bullish β fund kept accumulating this position.
π Harbor Advisors LLC has been actively increasing its MSFT allocation β a bullish signal from insiders.
Currently 1.89% of portfolio
β Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ 4 (annualised). Not investment advice.
As of 2025 Q4 β sorted by position size