A life insurer may not purchase an investment or security at a price above its market value. Subsection (a) of this section does not prohibit a life insurer from acquiring control of another insurer. This subtitle does not prohibit a life insurer from acquiring other or additional securities or property that is received: as a dividend; as a lawful distribution of assets; or under a lawful and bona fide agreement of bulk reinsurance, merger, or consolidation.