Index: wp-admin/includes/class-wp-posts-list-table.php
===================================================================
--- wp-admin/includes/class-wp-posts-list-table.php	(revision 32519)
+++ wp-admin/includes/class-wp-posts-list-table.php	(working copy)
@@ -750,7 +750,17 @@
 					echo '<div class="locked-info"><span class="locked-avatar">' . $locked_avatar . '</span> <span class="locked-text">' . $locked_text . "</span></div>\n";
 				}
 
-				if ( ! $this->hierarchical_display && 'excerpt' == $mode && current_user_can( 'read_post', $post->ID ) )
+				/**
+				 * Filter to determine with post types will show the excerpt if toggled on
+				 *
+				 * @since 4.3
+				 *
+				 * @param array The list of currently allow posts to show the excerpt on
+				 *
+				 */
+				$show_excerpts_on_post_type = apply_filters( 'posts_list_table_allow_excerpts', array( 'post' ) );
+
+				if ( ! $this->hierarchical_display && in_array( get_post_type( $post->ID ), $show_excerpts_on_post_type ) && 'excerpt' == $mode && current_user_can( 'read_post', $post->ID ) )
 						the_excerpt();
 
 				$actions = array();