HI JACK
FIRST OFF..There was a very suspicious timing on that announcement. The CEO had a deal to sell $6 million of his shares on 11/11 with the understanding that the stock had to be trading over $40/share. the stock was in the high 30s , the announcement came , it spiked over $41. He was then able to sell the shares causing it to drop. I'm sure his cronies did so too, once again a rich guy in charge fucking over the American people, which is what the whole stock market is about.
SECOND OFF.Pfizer spun off Viatris which was trading over $15/share so for whatever shares you owned of Pfizer you got fractional shares of Viatris. I forget the percentage but I ended up with 37 shares, which increased my position by about $2. So you added them both and it came out to around $38.Currently Viatris is trading at $16.80/sh
HOPE THAT HELPS