/usr/share/php/Horde/ is in php-horde-compress 2.1.4-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Horde/Compress/
/usr/share/php/Horde/Compress.php
/usr/share/php/Horde/Compress/Base.php
/usr/share/php/Horde/Compress/Dbx.php
/usr/share/php/Horde/Compress/Exception.php
/usr/share/php/Horde/Compress/Gzip.php
/usr/share/php/Horde/Compress/Rar.php
/usr/share/php/Horde/Compress/Tar.php
/usr/share/php/Horde/Compress/Tnef/
/usr/share/php/Horde/Compress/Tnef.php
/usr/share/php/Horde/Compress/Tnef/Date.php
/usr/share/php/Horde/Compress/Tnef/File.php
/usr/share/php/Horde/Compress/Tnef/Icalendar.php
/usr/share/php/Horde/Compress/Tnef/MessageData.php
/usr/share/php/Horde/Compress/Tnef/Object.php
/usr/share/php/Horde/Compress/Tnef/Rtf.php
/usr/share/php/Horde/Compress/Tnef/VTodo.php
/usr/share/php/Horde/Compress/Translation.php
/usr/share/php/Horde/Compress/Zip.php