Here's everything you need to know before Monday's opening bell:
Apple's annual Worldwide Developer Conference will kickoff with a keynote address from Tim Cook.
Microsoft could reportedly announce an agreement to acquire GitHub.
American Airlines warned that airline passengers eventually may pay more for tickets if oil prices remain high.
Bayer said it will require the Monsanto name after it completes its purchase.
U.S. stock futures pointed to gains for Wall Street.
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