For certain transactions, the threshold for pre$-$merger notification is met if

a$.$ the entities involved are engaged in bid$-$rigging and their combined revenues exceed $$400$ million per year.

b$.$ the entities involved are worth more than $$100$ million or their combined revenues exceed $$400$ million per year.

c$.$ the value of the target firm or the assets being acquired exceeds $$87$ million, and the combined assets or revenues of the entities involved and their affiliates exceed $$400$ million per year.

d$.$ either the value of the target firm or the assets beeing acquired exceeds $$40$ million, or the combined revenues of the entities involved exceed $$400$ million per year.

e$.$ there is an abuse of dominant position and the combined revenues of the entities involved exceed $$400$ million per year.