Within the last year of trading, going by memory, the total O/S increase was 3.6B added to the previous end-of-year's 3.4B, for the final total (at Expert Market time) of 7B (and change).
I think that increase happened in two chunks, where the 2nd one was that 2B increase. (T53 may have the saved screen shots for the actual amounts and timing.)
Basically, Nixon sold enough shares for someone -- if they were a single entity -- to own just over half the company. Of course, if the buyer wasn't a single entity, then it was just dilution as usual.
