No officer, director, or employee of any corporation or unincorporated association, no partner or employee of any partnership, and no individual, primarily engaged in the issue, flotation, underwriting, public sale, or distribution, at wholesale or retail, or through syndicate participation, of stocks, bonds, or other similar securities, shall serve the same time as an officer, director, or employee of any member bank * * *.
Since Rule 314 provides that each member and allied member in a member organization must have a fixed interest in its entire business, it follows that the fixed interest of each member and allied member must extend to the member organization's corporate affiliate. When any of the corporate affiliate's participating stock is owned by the members and allied members in the member organization, such holdings must at all times be distributed among such members and allied members in approximately the same proportions as their respective interests in the profits of the member organization. When a member or allied member's interest in the member organization is changed, a corresponding change must be made in his participating interest in the affiliate.
12 C.F.R. §250.407