New Anya corporate holdings.

[Korrok]

Anyas corporate holdings trigger adds a hazard aura around a friendly model. If she gets this onto two models do enemies take damage from each seperate aura if they move/take actions while inside each? 

[Rufess]

It is an  hence is not cumulative. So, similar to Vent Steam, the model only suffers once from the hazard effect

[solkan]

3 hours ago, Korrok said:

Anyas corporate holdings trigger adds a hazard aura around a friendly model. If she gets this onto two models do enemies take damage from each seperate aura if they move/take actions while inside each? 

Only if they somehow manage to do it separately.  From Auras:

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Auras are not cumulative. If a model would be affected by multiple Auras of the same name (i.e., if the Aura would change its game state in some way), then it is only affected by one such Aura of its controller’s choice.

You’ll still have the two auras on the two models.  But standing in the overlap of the two auras doesn’t give a doubled effect.

 

[Tired peasant]

An even if you walk from one aura to another, it would be triggered once:
p36 of the manual

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HAZARDOUS MARKERS

Some game effects are capable of creating Markers with the Hazardous Trait.

All Markers with the same name (i.e., Pyre Markers, Pit Trap Markers, etc.) count as the same piece of terrain for the purposes of the Hazardous Terrain Trait.

Thus, if a model was Pushed through three Pyre Markers and a single Pit Trap Marker, it would suffer the effects of moving through a single Pyre Marker and a single Pit Trap Marker.