To hide all activity feeds from particular members / pages, please follow the steps below:
1. Go to your Homepage.
2. Go to the activity feed of the member / page of which you want to hide all activity feeds. Hover your mouse on that post.
3. Click on the icon in the top right corner of the post, and choose the “Hide all by ….” option.
Note that with this, you will also not receive any future updates from this source on your home page. You can any time easily un-hide this member / page and continue to receive updates from them.