There were no summits on K2 this year despite a large number of permits to climb the mountain. In total there were 112 climbing permits. There were three large commercial expeditions with Sherpas leading the way for their climbers. The highest that anyone got this year was camp 4 where Sherpas setup the camp for their climbing expeditions.
Most climbers though only managed either camps 2 or 3. They were hoping for a final summit attempt but their plans were thwart by a massive avalanche.
No climbers were killed this summer. But this was fortunate as a massive avalanche wiped out camps 3 and 4 with no climbers in them. Had it occurred a day later, then there would have been many climbers in these camps and the likelihood of survival would have been minimal.