/usr/share/ is in gnome-shell 3.18.4-0ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/gnome-shell
/usr/share/applications/
/usr/share/applications/gnome-shell.desktop
/usr/share/applications/org.gnome.Shell.PortalHelper.desktop
/usr/share/applications/gnome-shell-wayland.desktop
/usr/share/applications/evolution-calendar.desktop
/usr/share/applications/gnome-shell-extension-prefs.desktop
/usr/share/dbus-1/
/usr/share/dbus-1/interfaces/
/usr/share/dbus-1/interfaces/org.gnome.ShellSearchProvider.xml
/usr/share/dbus-1/interfaces/org.gnome.Shell.Screencast.xml
/usr/share/dbus-1/interfaces/org.gnome.ShellSearchProvider2.xml
/usr/share/dbus-1/interfaces/org.gnome.Shell.Screenshot.xml
/usr/share/dbus-1/services/
/usr/share/dbus-1/services/org.gnome.Shell.HotplugSniffer.service
/usr/share/dbus-1/services/org.gnome.Shell.PortalHelper.service
/usr/share/dbus-1/services/org.gnome.Shell.CalendarServer.service
/usr/share/doc/
/usr/share/doc/gnome-shell/
/usr/share/doc/gnome-shell/NEWS.gz
/usr/share/doc/gnome-shell/copyright
/usr/share/doc/gnome-shell/changelog.Debian.gz
/usr/share/doc/gnome-shell/README
/usr/share/man/
/usr/share/man/man1/
/usr/share/man/man1/gnome-shell.1.gz
/usr/share/glib-2.0/
/usr/share/glib-2.0/schemas/
/usr/share/glib-2.0/schemas/10_gnome-shell.gschema.override