I don`t think so. Magna as a substantial shareholder must disclose any movement in their holdings to the market immediately and I haven`t seen that.
They only need to disclose greater than 1% movement in holdings (unless they reach the 20% mark) however buying and selling shares for the purpose of manipulation of the share price is illegal and no company would make it so obvious, particularly if gearing up for a takeover attempt. The view that Magna would want to takeover OEX for 15c or less because of options doesn't really make sense to me. They would know that if they wanted to takeover that they'd have to also take into account the options and on that basis, as someone mentioned previously, it would make more sense for them to accumulate options to increase their holdings by stealth and improve the chance of a successful takeover.
OEX Price at posting:
11.7¢ Sentiment: None Disclosure: Held