144,000 BTC would be easy to sell, distributed over 2-3 exchanges over a few weeks.
It only represents 7% of the 2 million BTC sold on the top 3 exchanges over the last 30 days: http://bitcoinity.org/markets/list?currency=ALL&span=30d
It only represents 7% of the 2 million BTC sold on the top 3 exchanges over the last 30 days: http://bitcoinity.org/markets/list?currency=ALL&span=30d