During the past three days (including today), NVS sold ~260K shares, reducing its MNTA holding from 4.71M shares to 4.45M shares.
The 10b5-1 plan has a (undisclosed) lower bound on the MNTA share price, so there is no absolute requirement that NVS complete its divestiture by 1/26/17.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”