SAN FRANCISCO , Feb. 1, 2019 /PRNewswire/ -- DocuSign (Nasdaq: DOCU) today announced that Dan Springer , CEO, and Michael Sheridan , CFO, will participate in the following upcoming investor conferences: Goldman Sachs Technology & Internet Conference, in a fireside chat on Wednesday, February 13, 2019 at 11:00 a.m. PT / 2:00 p.m. ET...