State pension fund directors will take up a proposal next week that would provide larger bonuses for staff investment professionals, but also set more ambitious targets to qualify for those payouts.

Under the proposal, the number of top investment staffers at the state’s Pension Reserves Investment Management Board, or PRIM, eligible for 40 percent annual bonuses would expand to about a half dozen. Most financial staff who are not responsible for investments would have their potential bonus cut from 30 percent to 20 percent of their salary. At the same time, however, their base pay would increase.