From the call:
Joel DaVita: "So the ending share count at the end of Q3 was just under 134 million, 133.9 million. Remember that excludes the shares we bought back since the quarter ended."
Joel Ackerman: "Since Capital Markets Day, we purchased an additional 8.9 million shares at an average price of $58.90 per share. As a result of these purchases, we've reduced our share count by approximately 36.9 million shares or 22% since the close of the DMG transaction."
So it seems unclear how many shares they already bought back in Q4 to get to the exact sharecount, unless you know what the exact sharecount was at the close of the DMG transaction.