Not quite right, Wiki is sparse with the facts.
1993 Norton Motors Ltd was skint, so the deal was done for the assets of NML, this let NML wither and die as a shell. On completion of the deal NM93 was formed, though as can be seen publicly the various registrations, UK and US, that needed to be completed as part of that deal were not completed until after the Skalbanias had disappeared and Calof, Aquilini's brief, did some tidying up, with some registrations not completed until 1998.
Norton Motorcycles 1993 named changed to Norton Motorcycles, again the dates can be found at company's house.
Looking at the data from and the timeline the security the Aquilini's had over NM93 was worked out in 1998 - details and dates online, less than seven days after the settlement Calof moved all Norton Motorcycles Ltd assets from the UK into March Motors Inc, in the US. This US entry contains both the TM, and on the same piece of paper another paragraph for the entire business interest as well. We know that the entire Norton Motorcycles Ltd had transferred to the US.
This left him with no Company, but some BSA agreements that were not part of the transaction to MMI and without checking my details the TM, so he used the empty company registration to set up to name change to BSA motorcycles Ltd. This did not last long, in 1999 he was challenged for not keeping to the the agreements, he did not attend the hearing and lost with the lot moving to BSA Regal. The finer details of this can be found on the UKIPO challenges website where it is publicly available.
The above is a very brief over view of this period. Most of the above can be found publicly online, any that is not, as per ZFD comment recently, those who wish to see more historic detail that AN have can make an appointment to view it.
I have been asked, how many times has the TM been sold since 1966, answer is once in 1993, NML to NM93.
The exact financial detail of how Villiers obtained it in 1966 was never fully disclosed, though the file papers seem to suggest it was thrust upon them and MBH, and thus the reason why MBH set it up as a new company _ Norton Villiers Ltd, so that if it failed it would not affect MBH or Villiers engines.