More boardrooms targeted for political spending By: MarketWatch April 19, 2012 at 00:00 AM EDT More institutional investors are agitating for corporations to disclose what they spend on political advocacy, including campaign donations to candidates. Read More >> Related Stocks: 3M Co Bank of America Boeing Co Chubb Corp Goldman Sachs Group Google, Inc. Halliburton Co Home Depot Intel Corp International Business Machines Procter & Gamble State Street Corp Target Corp Western Union