Simple. Just make the board of directors be made of people who are pro nationalization then direct them to sell the company to the citizenry for pennies on the dollar.

Just like what Royal Mail did. The tory government sold it during a strike thereby selling it at a much lower value.

So as follows:

1. Make the board of directors of a corporation out of people that are pro nationalization (rig shareholder elections if you need to)
2. Create a crisis in the company (strike or slow down or loss of an important government contract)
3. Have the hand picked board of directors sell the company to the government for pennies on the dollar
4. Give the hand picked directors healthy public pensions and an Order of Canada
5. Rinse and repeat

We should not be in favour of theft but in favour of "fair market value" and "market efficiencies by cutting the extra fat off of private ownership" ;)

The conservatives/liberals did it one way it's equally valid the other way.

If it's theft if done by our government then it's theft if privative investors do it to us.