Among the stock activity stories for Friday, June 12, from AP Financial News: BOSTON (AP) ¿ Shares of BlackRock Inc. fell in the wake of the U.S. investment manager's $13.5 billion deal to acquire Barclays' investment unit, including the British financial services company's fast-growing iShares exchange-traded fund business. NEW YORK (AP) ¿ Shares of Paychex Inc., which provides payroll and personnel services, dropped after a Goldman Sachs analyst added the stock to his "Americas Conviction Sell" list amid rising unemployment. PORTLAND, Ore. (AP) ¿ Shares of Lululemon Athletica Inc. rose after a Goldman Sachs analyst upgraded shares of the Canadian athletic apparel company. NEW YORK (AP) ¿ Shares of TNS Inc. advanced with help from an upgrade at Raymond James, which boosted its earnings and sales forecast for the company. NEW YORK (AP) ¿ Shares of digital imaging provider Schawk Inc. dropped after the company reported sharply lower fourth quarter and year-end results, reflecting a steep decline in its consumer products packaging business.