May 17 Shopify Inc
* Shopify Inc files for mixed shelf of up to $2.5 billion - SEC filing Further company coverage:
Mexico's Sigma buys Peru-based meat, dairy producer SUPEMSA
MEXICO CITY, June 28 Mexico's Sigma Alimentos, a unit of conglomerate Alfa, said on Wednesday that it has acquired Sociedad Suizo Peruana de Embutidos (SUPEMSA), a firm which produces and sells cold meat and dairy products in Peru, for an undisclosed amount.
UPDATE 4-U.S. to unveil enhanced airline security plan to avoid laptop ban
WASHINGTON/NEW YORK, June 28 U.S. Homeland Security officials on Wednesday will unveil enhanced security measures for foreign flights arriving in the United States but not an immediate expansion of an in-cabin ban on laptops and other large electronic devices because they might carry bombs, sources briefed on the matter said.