One medical equipment and supplies player whose insiders are doing some decent buying is Quidel ( QDEL), which is engaged in the development, manufacturing and marketing of diagnostic testing solutions. Insiders are buying into some solid strength here since shares are up over 20% so far in 2012. Quidel has a market cap of $605 million and an enterprise value of $591 million. This stock trades at a premium valuation, with a trailing price-to-earnings of 80.66 and a forward price-to-earnings of 37.37. Its estimated growth rate for this year is 4.3%, and for next year it's pegged at 104.2%. This is just barley a cash-rich company, since the total cash position on its balance sheet is $61.33 million and its total debt is $49.77 million. A director just bought 65,815 shares, or about $1.1 million worth of stock, at $16.48 to $16.65 per share. The president and CEO also just bought 10,000 shares, or about $165,000 worth of stock, at $16.55 per share. >>5 Big Stocks to Trade for Gains From a technical perspective, QDEL is currently trading above both its 50-day and 200-day moving averages, which is bullish. This stock found some buying interest at around $14 in February, and since then it has ran up big to its current price of over $18 a share. This move has now pushed QDEL within range of a big breakout trade. If you're a bullish on QDEL, I would look for long-biased trades if the stock can manage to break out above $18.48 to $19.09 with high volume. Look for volume on that move that's near or well above its three-month average of 169,075 shares. Keep in mind that the current relative strength index (RSI) reading for QDEL is overbought at 81.55. If that breakout doesn't trigger soon with high-volume, then this stock is vulnerable for a selloff. I would only look for to get long if QDEL is trending about those breakout levels in the near-term.