Apparently the scam began in 2015, and involved a company called EMS Find (EMSF; now Integrated Ventures, INTV). In the summer of that year, the stock was manipulated by Muller and an associate (called "Associate" in the complaint).
It wasn't a very exciting pump; it in fact seems to to be a byproduct of another enforcement action or actions. Muller's name rang a faint bell for me, and so I went looking for him. I found this:
The poster is known to people who followed SRGE and CRGP; his information, when he's posting seriously, tends to be quite reliable. And note that the post is from October 2015. Adrian Thomas and Ulrik Debo. Debo--but not Thomas--has been sued by the SEC. I wonder if perhaps he ratted out Muller. And I suppose he could have been the Associate.
On the other hand, Muller was, as noted in the complaint, involved with George Lambro, and also with Chuck Arnold.
Lambro, Muller, Rene Galizio, and NSG Fund, Inc (controlled by Lambro), were sued in Florida in 2014 by Summit Trading Limited, a Bahamian company, and Mirador Consulting:
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