According to Oryk, Ukraine has lost 47 Bradleys.

20 Destroyed, 21 damaged and 6 damaged and abandoned.

Ukraine is meant to have about 100 of them and according to the leaks(which may not be up to date) they are all in one unit so that one unit will have suffered at lost at least 50% of it's IFVs.

There are no mentions of Marder or Stryker losses which are meant to be in other earmarked brigades. So they must still be held in reserve.