	partnership ups hbo hboc o stake to pct andover group a great falls va investment partnership that is seeking control of hbo and co said it raised its stake in the company to shares or pct of the total from shares or pct in a filing with the securities and exchange commission the partnership said it bought hbo common shares for mln dlrs on may the group which has a slate of candidates seeking board seats said it would decide whether to submit an offer to uire the company after the hbo annual shareholders meeting which was to have been april but was postponed reuter 
