Carl Icahn boosts stake in Newell Brands as proxy battle heats up

The battle at Newell Brands is heating up. Activist investor Carl Icahn has upped his stake in the Elmer's glue maker to 6.9 percent, according to a Friday regulatory filing. The filing comes weeks after The Post reported exclusively that Icahn owned a Newell stake. Icahn's enlarged stake injects an extra dose of uncertainty at...