upon untimely(If shares acquired upon exercise of an NSO (or upon untimely exercise of an ISO) are later sold or exchanged, then the difference between the sales price and ... | Book by providing major credit card, which is charged at check-out or upon failure to show-up or upon untimely cancellation. Alexander Demidov)
upon failure to timely(outside the scope of a policy's insuring clause, as "requiring payment of a claim upon failure to timely disclaim would create coverage where it never existed. Alexander Demidov)