“Marathon Asset Management accumulated ~$150 million worth of bonds in Credit Suisse’s senior operating company (OpCo) days before the bank made its offer to buy back the debt, citing an anonymous source.
According to the publication, Marathon had bought the bonds at a reduced price—and made around $30 million within a few days thanks to its well-timed bet on the securities.”
https://fortune.com/2023/03/27/hedge-fund-marathon-asset-management-credit-suisse-bonds-at1/