Sky Investment Group LLC increased its position in shares of Costco Wholesale Co. (NASDAQ:COST – Get Rating) by 1.5% during the 4th quarter, HoldingsChannel.com reports. The fund owned 2,974 shares of the retailer’s stock after purchasing an additional 44 shares during the period. Sky Investment Group LLC’s holdings in Costco Wholesale were worth $1,358,000 at […]