If a six month notice period was the key driver of the timing, I would have very much expected to see the departure announced slightly more than six months from the notable events, rather than (very) slightly less than six months before the notable events. Given Ilya was voting in the majority on November 17th, seems unlikely he would have already resigned six months before the public announcement.
When considering that my thinking was that I’d expect the last day to be slightly after, but the announcement can be slightly before since that doesn’t need to be quite on the last day but can and often would be a little before—e.g. be on the first day of his last week.
If a six month notice period was the key driver of the timing, I would have very much expected to see the departure announced slightly more than six months from the notable events, rather than (very) slightly less than six months before the notable events. Given Ilya was voting in the majority on November 17th, seems unlikely he would have already resigned six months before the public announcement.
When considering that my thinking was that I’d expect the last day to be slightly after, but the announcement can be slightly before since that doesn’t need to be quite on the last day but can and often would be a little before—e.g. be on the first day of his last week.
November 17 to May 16 is 180 days.
Pay periods often end on the 15th and end of the month, though at that level, I doubt that’s relevant.