First recorded Marder loss, it got stuck in a trench. This video is quite lewd, don't watch if you respect the Marder's modesty.

Now only the Challenger has not made a recorded appearance yet, though I think it is part of the unit with Marders and Stykers.
So it seems that Ukraine has committed all of their best forces, they might have reserves still but they will be Soviet equipped units. Well Soviet equipment plus M113s, Bushmasters and such that they have as well.