It’s a question of materiality to the company. If the “acquisition” was not a material change to the company finances...ie...does not change the assets by more than 10% or is not a material change to earnings...then it does not have to be disclosed. For a huge company like Cisco...that acquistion was not.
The acquisition of Rotman’s fundamentally changes Vystsr and thus IS material.
...unless someone wants to argue it is not going to be a material change to Vystar’s business ;-). Lol.