In light of coronavirus concerns, the SEC issued some guidance and relief from filing conditions for companies thinking of switching to virtual shareholder meetings or delaying their meetings after their initial proxy materials have been sent, as well as encouraging companies to allow proponents of shareholder proposals to present their proposals remotely rather than in person:

https://www.sec.gov/ocr/staff-guidance-conducting-annual-meetings-light-covid-19-concerns?auHash=zrsDVFen7QmUL6Xou7EIHYov4Y6IfrRTjW3KPSVukQs