Cheap.....$20-30K per the source below. I agree,
Post# of 145247
https://510kfda.com/pages/fda-510k-costs
IMO they have more going on than they (NP, RP and the few in the background) and the hours in the day can handle. While $$ is much needed, so is leronlimab for cancer patients and they knew that someone else would be selling this test....and maybe they even submitted the 510(k) documents, just never announced it?