No, you don't need to file a claim, you're an FNDM shareholder not a creditor. Thomas will most likely get a record of the shareholders and the amount of shares everyone has. If you do purchase shares for the first time and or you haven't emailed Thomas in the past regarding your shares then you should let Thomas know by sending him an email of how many shares you own.
If you sell or buy additional shares then it's not necessary to let Thomas know.
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