The Green Party says if it is part of the government after next year's election it will push for a policy that would keep a larger stake of Meridian in government hands.
As an incentive during the partial float of Meridian earlier this year investors could choose to delay payment for some of their shares until 2015. They were required to 60% of the share price upfront and were given 18 months to pay the rest.
Under the Greens policy, investoris could opt out of paying the outstanding cost, and relinquish the corresponding number of shares.
If the share price in 2015 was $1.50 and all investors took up the option the Government would retain about 67% of Meridian rather than 51%, the party says.
Prime Minister John Key says it's stupid and disingenous to argue that the mixed ownership of Meridian is better with a larger government stake.
