That link is for the year 2017, https://fintel.io/so/us/mzei which was the last year that MZeI was alive. Behold, that link shows there were only 2 "institutions" and they held a grand sum of 40,240 shares, which would be worth $80 today. Back then their holdings were a whopping $4,000 each so these are big players and very smart ones too when you look at their rate of return as of today turning $8,000 into $80. But since the report is 3 years old, maybe these fat cats cashed in their $80 and spent it on a jug of hand sanitizer.
"Medizone International, Inc. (OTC:MZEI) has 2 institutional investors and shareholders that have filed 13D/G or 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 40,240 shares."
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