Sentence 1: Ackman bought credit default swaps against MBIA corporate debt and sold the swaps for a large profit during the financial crisis of 2008 .
Sentence 2: Ackman purchased credit default swaps against MBIA Corporate Debt and sold the swaps for a large profit during the 2008 financial crisis .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?