After some research I actually found something close enough.
http://www.moneyweb.co.za/moneyweb-sens
This is not what you're looking for.
SENS data is obligatory disclosures that company executives must make when dealing in company shares.
So for example, the CEO of Pick and Pay must disclose when he purchases shares in Pick and Pay, as this is obligatory. If he doesn't, he will be guilty of insider trading and there is probably some stiff penalties.
Although this could work in your favour, if the market moves according to what executives do, they could use this tactic to "drive up" prices (when people assume that the CEO is buying, so we should too) and then on a random day, he will dump the stock and make his gains purely by the fact that everyone else believed the price will go up because the CEO bought shares.
Generally, I wouldn't recommend following a market-maker (eg. a guy like Warren Buffett). People who do this, don't tend to get the same returns as the actual market-maker (a good example was when Buffett gave Goldman a US$5 billion loan and was collecting 10% interest on that amount annually. Anybody buying GS shares at that time would likely not be getting as great a performance as they could after the loan was settled).