Our holding company holds its annual shareholder's meeting every April to elect the subsidiary bank's directors. This is immediately preceeding the bank's April Board meeting, at which time the re-elected directors appoint the officers of the bank for the next 12 months. This is all done to comply with the bank's Articles and Bylaws. So I would start with those documents to see what must be done at this "annual" meeting. There are also state laws that may impact what is done at this meeting. For example, in Texas, each director, having been appointed, must sign an acknowledgement accepting their duties. But I know of no FDIC, OCC, OTS or other federal regs that address these annual meetings.
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Societies that do not find work in and of itself "pleasing to God and requisite to Man," tend to be highly corrupt.