NEW YORK (Reuters) -German premium footwear maker Birkenstock Holding priced its U.S. initial public offering (IPO) at the middle of its indicated price range at $46 per share, the company said on Tuesday. Birkenstock and its underwriters chose to price the offering conservatively given the market volatility, despite having enough demand to price the share sale at the top of the indicated range of $44 to $49 per share, according to people familiar with the matter. The IPO raised about $1.48 billion based on 32.3 million shares sold and values the company at about $9.3 billion on a fully dilu...