Regex in the title not working

Hi there I am trying to modify my title to exclude the following phrase. 10-K - I have used the following on the Regex title.  However, it didn't remove the phrase.  I am I doing something wrong?  I followed your YouTube tutorial and it didn't work. <table class="responsive table cr_main_table_nowr"> <tbody> <tr> <td> <div><b>Run Regex On Title:</b></div></td> <td><textarea class="cr_width_full" name="echo_rules_list[strip_by_regex_title][]" rows="1" placeholder="regex"></textarea></td> </tr> <tr> <td> <div> <div class="bws_help_box bws_help_box_right dashicons dashicons-editor-help cr_align_middle"></div> <b>Replace Title Matches From Regex: </b></div></td> </tr> </tbody> </table>