 Clarity Wealth Advisors LLC lessened its position in shares of Costco Wholesale Co. NASDAQ:COST by 2.3 during the 1st quarter, Holdings Channel reports. The firm owned 10,433 shares of the retailers stock after selling 244 shares during the quarter. Costco Wholesale comprises 3.1 of Clarity Wealth Advisors LLCs portfolio, making the stock its 11th largest ... 