The Campbell Soup Company has been a family business since its start in the late 1800’s. Now, amid drops in sales and its share price, the soup giant’s heirs are facing pressure to sell their stakes in the company. » Subscribe to CNBC: About CNBC: From ‘Wall Street’ to ‘Main Street’ to award winning original documentaries and Reality TV series, CNBC has you covered. Experience special sneak peeks of your favorite shows, exclusive video and more. Connect with CNBC News Online Get the latest news: Find CNBC News on Facebook: Follow CNBC News on Twitter: Follow CNBC News on Google+: Follow CNBC News on Instagram: How the Campbell Soup Company Fell Off Its Perch | CNBC.