ST. PAUL, Minn.--(BUSINESS WIRE)--3M (NYSE: MMM) today announced the following investor events: Morgan Stanley 3rd Annual Laguna Conference in Laguna Beach, Calif., on Wednesday, Sept. 16, 2015. Nick Gangestad, senior vice president and chief financial officer, will speak at 2:30 p.m. PDT. Third-quarter 2015 earnings conference call on Thursday, Oct. 22, 2015, at 8 a.m. CDT. The live webcast, press release and supporting slide presentation will be available on 3M’s Investor Relations website at