SECTION 1.  Subsection (c) of section 6 of chapter 176J, as so appearing, is hereby amended by striking out the fourth sentence and inserting in place thereof the following sentence:-

“Any rates of reimbursement or rating factors included in the rate filing materials submitted for review by the division shall be deemed confidential and exempt from the definition of public records in clause Twenty-sixth of section 7 of chapter 4.”

SECTION 2. Said section 6 of said chapter 176J, as amended by section 20 of chapter 142 of the acts of 2011, is hereby further amended by adding the following subsection:

“(g) For the purposes of rate development and for calculating the aggregate medical loss ratio for rate filings under this section, a carrier may calculate projected and reported per member per month revenues and projected and reported claim costs for small group health plans subject to this chapter on an aggregated basis for all affiliated companies within a parent corporation or holding company that offer such plans.”