Ipswich Investment Management Co., Inc. has filed its Form 13F-HR report for the period ending September 30, 2026. The filing details the firm's equity portfolio holdings as of the specified date.

The report lists 186 individual equity positions held by the firm. The largest holding disclosed in the filing is Microsoft Corporation, for which Ipswich reported ownership of 31,767,132 shares. Amazon.com Inc. is the second-largest holding, with 11,737,706 shares. Other significant positions include Apple Inc. with 27,238,250 shares, Costco Wholesale Corporation with 12,503,242 shares, and Berkshire Hathaway Inc. Class B with 900,792 shares.

The filing also includes a substantial number of exchange-traded funds (ETFs) and other investment products. Top ETF holdings include the Invesco QQQ Trust Series 1 with 2,464 shares, the Vanguard S&P 500 ETF Trust with 5,941 shares, and the iShares Core S&P 500 ETF with 7,456 shares. Additionally, the firm holds shares in various sector-specific ETFs, including the iShares MSCI EAFE ETF and the iShares Core S&P 500 ETF.