This chapter does not apply to a mutual insurer that has converted to a mutual legal reserve insurer pursuant to former Chapter 9 (commencing with Section 10810) of Part 2 of Division 2. Except for Section 4016.2, this chapter does not apply to (a) a mutual insurer that has completed proceedings for voluntary mutualization pursuant to Chapter 13 (commencing with Section 11525) of Part 2 or (b) a stock life insurer that has converted from a mutual life insurer, or a mutual holding company or a stock holding company formed, pursuant to proceedings under Chapter 14 (commencing with Section 11535) of Part 2.