ZURICH, Aug 6 (Reuters) - Credit Suisse will repay another $400 million to investors in its Greensill-linked supply chain finance funds, the bank said on Friday. The payout, planned for Friday, is the fourth distribution so far and takes the total amount returned to investors to roughly $5.9 billion. Together with the cash that has already been distributed and cash remaining in the funds, the cash position is equivalent to approximately $6.6 billion or 66% of the funds’ assets under management at the time of their suspension, the bank added. (Reporting by John Revill Editing by Riham Alkousaa) Our Standards: The Thomson Reuters Trust Principles.