Get events for a contact removed from a campaign

Your software
My Mautic version is:v4.4.7
My PHP version is:7.4.33

Your problem
I have a campaign with more than 10000 contacts. Via api /api/campaigns/ID/contacts I got contact ids linked to the campaign and then via api/contacts/ID/activity I got events. But I noticed that some contacts were removed from the campaign. So, is it possible to get events for removed contacts if I don’t know the ids it the contacts?