The one I've read is Elena Ferrante's The Story of a Lost Child, the fourth book in the author's Neapolitan Series. In fact, I've read all four books in the series since mid-October, and I'm happy to see this one on the list.
I picked up a signed copy of Lauren Groff's Fates and Furies in Austin in late October when I attended the Texas Book Festival there. I probably would not own a copy otherwise because in the past I've found Groff's prose to be a little too dense for my taste but her festival presentation was so charming that I decided to take a chance on this new one.
The other book from the Times list that is still in my TBR stack is Toni Morrison's God Help the Child. I'm a relatively recent convert to Morrison's fiction and this one sounds like an excellent addition to her body of work.
So for now now, I've read one percent of the titles on the list...with a pretty good chance that I will get that number all the way up to three percent some day. Wow.