The setting of a rate with NOK would surely be cause for a filing.
I don't believe that's the case, because they said nothing about a change in financial condition or operations of IDCC.
I suspect there is some other reason for filing under Section 13 (which was mentioned first-before 15(d), and without some direction, it is impossible to find the needle.
Once again, we're out on a limb.
We don't know whether they'll saw it off next week, or finish what they started, by giving an explanation.
If they're back from Cannes Monday, their phones will surely be ringing off the hook.