/usr/share/ is in plasma-runners-addons 4:5.5.5-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/plasma-runners-addons/
/usr/share/doc/plasma-runners-addons/copyright
/usr/share/doc/plasma-runners-addons/changelog.Debian.gz
/usr/share/kservices5/
/usr/share/kservices5/plasma-runner-dictionary_config.desktop
/usr/share/kservices5/plasma-runner-datetime.desktop
/usr/share/kservices5/plasma-runner-spellchecker_config.desktop
/usr/share/kservices5/plasma-runner-audioplayercontrol_config.desktop
/usr/share/kservices5/plasma-runner-spellchecker.desktop
/usr/share/kservices5/plasma-runner-audioplayercontrol.desktop
/usr/share/kservices5/plasma-runner-dictionary.desktop
/usr/share/kservices5/plasma-runner-converter.desktop