ACT Electoral Commissioner Damian Cantwell announced late Friday evening the final distribution of preferences.

Attorney-General Gordon Ramsay has lost his seat to the Liberals' Peter Cain in Ginninderra, and Labor lost the final seat in Brindabella to the Greens' Johnathan Davies.

It means there will be 10 Labor MLAs, nine Liberals and six Greens elected. Labor won two seats in each electorate, and the Liberals won two in all but Kurrajong. The Greens picked up two in Kurrajong, and one in each other seat.

That compares with the 2016 results of: 12 Labor MLAs, 11 Liberals and two Greens.

The Greens tripled their representation from two to six, while Labor and the Liberals lost two MLAs each. One incumbent for Labor and the Liberals also lost their seat to a member of their own party.

Labor lost Mr Ramsay, Bec Cody and Deepak Raj Gupta, while the Liberals lost James Milligan, Candice Burch and Andrew Wall.

The Liberals Vicki Dunne and the Greens' Caroline le Couteur retired.

The new Assembly will be:

Brindabella

Ginninderra

Kurrajong

Murrumbidgee

Yerrabi

It comes as Chief Minister Andrew Barr signalled he could appoint two Greens ministers to his cabinet, as Labor and the minor party begin formal negotiations to form government.

Greens leader Shane Rattenbury is in the running to be Attorney General now that Mr Ramsay has lost his seat.

Mr Barr said Mr Rattenbury would be given a senior ministerial role and one of his colleagues could be given a more low-profile portfolio.

It's a softening of Mr Barr's previous comments that a first-time MLA may not be ready to become a minister.

Mr Barr said there was also the option of adding a ministerial position when the members had settled in.

"I want to have those discussions and see the CVs and claims, I don't know who the Greens are going to put forward," he said.

While there will need to be a reshuffle, he said he would not consider moving some ministers, including Health Minister Rachel Stephen-Smith.

Mr Barr said gender diversity and a spread of ministers across geographical areas would also be considered in the final makeup of his cabinet.

Mr Rattenbury said the party expected to have at least two ministers in cabinet.

He said history didn't dictate that a first-term MLA should not be made a minister.

Mr Rattenbury said the parliamentary agreement between the two parties would need to be comprehensive across a number of policy areas.

"Both Labor and Greens brought quite a lot of polices forward in the election campaign, some of those are quite similar but there's other areas where we have taken quite different approaches," he said.

"We won't be able to do everything both parties wanted to bring to the election."

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