RE:RE:RE:RE:RE:Loose Lips Sink Ships Ok this "market survelience group" thing is another red herring. First of all there are all sorts of "groups".
Just a quick dive into this is that they are "market" oriented - "market" not company oriented. They are not "police" organizations at an individual basis per se.
They have to do with watching that trading is conforming to exchange and government regulations like making sure a trading op is not "spoofing" with phony orders, market maniplulation like front running, etc. They don't go that low as into company events.
Example: the infamous Elizabeth Holmes and her wonder test machine that could do many tests on a tiny bit of blood quickly and accurately. The whole thing was a scam but she took Walgreen's and many stock investors to the cleaners. No market survelience group ever detected her nefarious long time operations. It was investors going to the SEC and FBI. That is what it takes to nail activity like this.