/usr/share/kde4/apps/ is in knotes 4:4.13.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kde4/apps/akonadi_notes_agent/
/usr/share/kde4/apps/akonadi_notes_agent/akonadi_notes_agent.notifyrc
/usr/share/kde4/apps/kconf_update/
/usr/share/kde4/apps/kconf_update/noteglobalsettings.upd
/usr/share/kde4/apps/knotes/
/usr/share/kde4/apps/knotes/knotes_part.rc
/usr/share/kde4/apps/knotes/knotesappui.rc
/usr/share/kde4/apps/knotes/knotesui.rc
/usr/share/kde4/apps/knotes/print/
/usr/share/kde4/apps/knotes/print/themes/
/usr/share/kde4/apps/knotes/print/themes/big-title/
/usr/share/kde4/apps/knotes/print/themes/big-title/theme.desktop
/usr/share/kde4/apps/knotes/print/themes/big-title/theme.html
/usr/share/kde4/apps/knotes/print/themes/default/
/usr/share/kde4/apps/knotes/print/themes/default/theme.desktop
/usr/share/kde4/apps/knotes/print/themes/default/theme.html
/usr/share/kde4/apps/kontact/
/usr/share/kde4/apps/kontact/ksettingsdialog/
/usr/share/kde4/apps/kontact/ksettingsdialog/knotes.setdlg