Template:M summ Equity Derivatives 12.1(l)

The date that one of the Additional Disruption Events becomes a thing, such that the parties to the Transaction have to do something about it.

This is something of an analogue to the “Notice of Publicly Available Information” concept in the credit derivatives world: the point at which an event, whether or not it eventually happens, becomes public knowledge is the event horizon from a help-the-credit-department-is-running-around-with-its-hair-on-fire perspective, hence all that slightly cute talk of “a firm intention to engage in a transaction (whether or not subsequently amended) that leads to ...” and so on. That, and ISDA’s crack drafting squad™’s congenital inability to write plain, elegant sentences that say what they mean, of course.