You can only write off max $3k/yr if you lose on a stock, is that correct? So, if true, what is up with the Bill Ackman / Valeant Pharmaceuticals talk within this link below about they chose to sell and will "realize a large tax loss." Can corporations write off a loss for the year it was incurred or do they have the $3k/yr thing like individuals?
Link: [https://www.forbes.com/sites/nathanvardi/2017/03/13/billionaire-bill-ackman-sells-disastrous-valeant-investment-after-nearly-4-billion-loss/](https://www.forbes.com/sites/nathanvardi/2017/03/13/billionaire-bill-ackman-sells-disastrous-valeant-investment-after-nearly-4-billion-loss/)
