"What does it mean? Short term i have no clue."

Any time you have buyers or sellers in large blocks then be sure that it is no ordinary investors that are doing it. Possibly many are fund managers or brokerages.

Why sell now?

Because they suspect that there will be no news in the near future that will propel the share price upwards. They are short term players expecting the sp to go down and for them to get the shares back at much lower price. I suspect a few pennies lower would be enough for them.

Are we not in limbo until the Ontario election is over?

Just my guessing.