by Randy Carey:
Reg. O only addresses loans. Whether or not this would be considered insider abuse or self-dealing will be a fact based determination.
by Dan Persfull:
12 USC 376 (section 22(e) of the Federal Reserve Act)
Interest on deposits of directors, officers, and employees
(e) No member bank shall pay to any director, officer, attorney, or employee a greater rate of interest on the deposits of such director, officer, attorney, or employee than that paid to other depositors on similar deposits with such member bank.
[12 USC 376. As added by act of June 21, 1917 (40 Stat. 240); and amended by act of Sept. 26, 1918 (40 Stat. 971), which completely revised this section.]
by John Burnett:
That covers national banks and state member banks. There is, though, no comparable federal prohibition for state non-member banks. For them, it would have to be a state law restriction.