I can't believe you have to ask that question, but the answer is:
If the date is 3/31, it indicates what the institution reported for Q1 activity.
If the date is 6/30, it indicates what the institution reported for Q2 activity.
We have no idea what an institution's Q3 (present) activity/status is, and we won't know that until mid-November when they report it.
Delisting does not automatically mean that an institution will drop its position in GTE. Look at LUKOY.PK, which is listed on the pink sheets, yet has ~36 institutional investors with positions:
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