RE:IRGood for you! But you are compeletely wrong!
When a company is waiting for the results of an assay and the company doing the assay tells them they have to rerun the test because they used a cheap testing method that was not accurate enough for the samples there is no need for the company to inform the market. It is NOT a material change. They market knows that it is waiting for the samples results and those have to come from proper testing. And as long as that is not finished they can withhold all the information. It is also up to the company to wait until all samples have been returned or disclose information as soon as some samples are returned. The rules are rather flexible and not so black and white as you claim them to be. One company waits for all results to be returned, other give out the results bit by bit. But no company will give out incorrectly tested results!