As a parent holding company two things could force news and filings:
1. The need to raise money and invest it into a worthy project, thereby leveraging their money to the maximum. Eg. Bluecastle or SSC.
2. All of the deals by the various hedgefunds involve monies loaned in exchange for either stock or warrents. The monies loaned are probably from investors and the surcharge from the hedgefund is added into the total number of shares exchanged. Profits have not been made until the stock is sold. Therefore there is no tax liability and the holding company remains silent. Ultimately, stocks will be sold, profits made and at that point a holding company becomes a very useful tool to manage tax liability.
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