Stock Quotes in this Article: AVAV, AYR, BH, BTH, PBF

DELAFIELD, Wis. (Stockpickr) -- Corporate insiders sell their own companies' stock for a number of reasons.

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They might need the cash for a big personal purchase such as a new house or yacht, or they might need the cash to fund a charity. Sometimes they sell as part of a planned selling program that they have put in place for diversification purposes, which allows them to sell stock in stages instead of selling all at one price.

Other times they sell because they think their stock is overvalued and the risk/reward is no longer attractive. Some even dump their own stock because they have inside knowledge that a competitor is eating their lunch and stealing market share.

But insiders usually buy their own shares for one reason: They think the stock is a bargain and has tremendous upside.

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The key word in that last statement is "think." Just because a corporate insider thinks his or her stock is going to trade higher, that doesn't mean it will play out that way. Insiders can have all the conviction in the world that their stock is a buy, but if the market doesn't agree with them, the stock could end up going nowhere. Also, I say "usually" because sometimes insiders are loaned money by the company to buy their own stock. Those loans are often sweetheart deals and shouldn't be viewed as organic insider buying.

At the end of the day, its large institutional money managers running big mutual funds and hedge funds that drive stock prices, not insiders. That said, many of these savvy stock operators will follow insider buying activity when they agree with the insider that the stock is undervalued and has upside potential. This is why it's so important to always be monitoring insider activity, but it's twice as important to make sure the trend of the stock coincides with the insider buying.

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Recently, a number of companies' corporate insiders have bought large amounts of stock. These insiders are finding some value in the market, which warrants a closer look at these stocks. Here's a look at five stocks whose insiders have been doing some big buying per SEC filings.

Biglari

One cyclical consumer player that insiders are buying up a large amount of stock in here is Biglari (BH), which is currently engaged in investment management and the franchising and operating of restaurants. Insiders are buying this stock into modest strength, since shares are up 8.7% so far in 2013.

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Biglari has a market cap of $605 million and an enterprise value of $688 million. This stock trades at a cheap valuation, with a trailing price-to-earnings of 4.83 and a forward price-to-earnings of 29.38. Its estimated growth rate for this quarter is 42%. This is not a cash-rich company, since the total cash position on its balance sheet is $153.57 million and its total debt is $236.16 million.

The CEO and chairman of the board just bought 5,165 shares, or about $1.36 million worth of stock, at $265 a share.

From a technical perspective, BH is currently trending above its 200-day moving average and just below its 50-day moving average, which is neutral trendwise. This stock has been trending sideways and consolidating for the last month and change, with shares moving between $408.25 on the downside and $429.97 on the upside. Shares of BH are now starting to push within range of triggering a near-term breakout trade above the upper-end of its recent sideways trading chart pattern.

If you're bullish on BH, then I would look for long-biased trades as long as this stock is trending above some near-term support levels at $410 to $408.25, and then once breaks out above some near-term overhead resistance levels $428.85 to $429.97 a share with high volume. Look for a sustained move or close above those levels with volume that hits near or above its three-month average action of 10,146 shares. If that breakout hits soon, then BH will set up to re-fill some of its previous gap down zone from August that started at $467.89 a share.

Blyth

Another non-cyclical consumer goods player that insiders are active in here is Blyth (BTH), which designs and markets home fragrance products and decorative accessories, as well as weight management products, nutritional supplements and energy drinks. Insiders are buying this stock into weakness, since shares are down by 22% so far in 2013.

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Blyth has a market cap of $193 million and an enterprise value of $156 million. This stock trades at a reasonable valuation, with a price-to-sales of 0.19 and a price-to-book of 4.21. This is a cash-rich company, since the total cash position on its balance sheet is $172.96 million and its total debt is $127.98 million. This stock currently sports a dividend yield of 1.6%.

A beneficial owner just bought 20,000 shares, or $246,000 worth of stock, at $12.34 per share.

From a technical perspective, BTH is currently trending above its 50-day moving average and below its 200-day moving average, which is neutral trendwise. This stock has recently pulled back after trading just above its 200-day moving average at $14.60 a share to its intraday low of $12.05 a share. That pullback is pushing shares of BTH very close to its 50-day moving average of $11.48 a share. If that level holds off this pullback, then shares of BTH could present a solid buying opportunity.

If you're in the bull camp on BTH, then look for long-biased trades as long as this stock is trending above is 50-day at $11.48 and then once it breaks out above some near-term overhead resistance at $13.09 a share with high volume. Look for a sustained move or close above that level with volume that hits near or above its three-month average action of 287,505 shares. If we get that move soon, then BTH will set up to re-test or possibly take out its next major overhead resistance levels at $14.60 to $15.69 a share. Any high-volume move above those levels will then put $17 to $20 into range for shares of BTH.

AeroVironment

One aerospace player that insiders are loading up on here is AeroVironment (AVAV), which is engaged in the design, development, production and support of unmanned aircraft systems and efficient energy systems for various industries and governmental agencies. Insiders are buying this stock into decent strength, since shares are up 23% during the last six months.

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AeroVironment has a market cap of $504 million and an enterprise value of $379 million. This stock trades at a premium valuation, with a trailing price-to-earnings of 108.75 and a forward price-to-earnings of 44.35. Its estimated growth rate for this year is 47.4%, and for next year it's pegged at 82.1%. This is a cash-rich company, since the total cash position on its balance sheet is $128.81 million and its total debt is zero.

A director just bought 5,000 shares, or about $112,000 worth of stock, at $22.50 per share.

From a technical perspective, AVAV is currently trending right below its 50-day moving average and above its 200-day moving averages, which is neutral trendwise. This stock has been trending sideways for the last two months, with shares moving between $20.78 on the downside and $23.97 on the upside. Shares of AVAV are now starting to trend within range of triggering a breakout trade above the upper-end of its recent sideways trading chart pattern.

If you're bullish on AVAV, then look for long-biased trades as long as this stock is trending above support at $22.30 or above its 200-day at $21.05 and then once it breaks out above some near-term overhead resistance levels at $23.60 to $23.97 a share with high volume. Look for a sustained move or close above those levels with volume that hits near or above its three-month average volume of 205,927 shares. If that breakout triggers soon, then AVAV will set up to re-test or possibly take out its next major overhead resistance levels at $25 to $28 a share.

PBF Energy

One energy player that insiders are snapping up a decent amount of stock in here is PBF Energy (PBF), an independent petroleum refiners and suppliers of unbranded transportation fuels, heating oils, petrochemical feedstocks, lubricants and other petroleum products in the U.S. Insiders are buying this stock into notable weakness, since shares are off by 22% so far in 2013.

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PBF Energy has a market cap of $896 million and an enterprise value of $1.63 billion. This stock trades at a cheap valuation, with a forward price-to-earnings of 7.35. Its estimated growth rate for this year is -67.7%, and for next year it's pegged at 88.4%. This is not a cash-rich company, since the total cash position on its balance sheet is $69.23 million and its total debt is $815.96 million. This stock currently sports a dividend yield of 5.4%.

A director just bought 10,000 shares, or about $226,000 worth of stock, at $22.50 per share.

From a technical perspective, PBF is currently trending above both its 50-day moving average, which is bullish. This stock has been trending sideways inside of a consolidation pattern for the last three months, with shares moving between $20.15 on the downside and $24.92 on the upside. Shares of PBF are now starting to bounce off its 50-day moving average of $22.44 a share and it's quickly moving within range of triggering a near-term breakout trade above the upper-end of its recent sideways trading chart pattern.

If you're bullish on PBF, then look for long-biased trades as long as this stock is trending above its 50-day at $22.44 or above more support at $21.89 to $20.59, and then once it breaks out above some near-term overhead resistance levels at $23.49 to $24.92 a share with high volume. Look for a sustained move or close above those levels with volume that hits near or above its three-month average volume of 1.11 million shares. If that breakout hits, then PBF will set up to re-test or possibly take out its next major overhead resistance levels at $26 to $28 a share.

Aircastle

One more stock with some decent insider buying is Aircastle (AYR), which is a global company that acquires, leases, and sells high-utility commercial jet aircraft to customers throughout the world. Insiders are buying this stock into big time strength, since shares up sharply by 39% so far in 2013.

Aircastle has a market cap of $1.4 billion and an enterprise value of $4.4 billion. This stock trades at a reasonable valuation, with a trailing price-to-earnings of 30.42 and a forward price-to-earnings of 9.32. Its estimated growth rate for this year is 118.8, and for next year it's pegged at 6.9%. This is not a cash-rich company, since the total cash position on its balance sheet is $430.27 million and its total debt is $3.54 billion. This stock currently sports a dividend yield of 3.9%.

A director just bought 30,000 shares, or about $518,000 worth of stock, at $17.23 per share.

From a technical perspective, AYR is currently trending above both its 50-day and 200-day moving averages, which is bullish. This stock has been uptrending strong for the last six months, with shares moving higher from its low of $12.62 a share to its recent high of $17.94 a share. During that uptrend, shares of AYR have been making mostly higher lows and higher highs, which is bullish technical price action. That move has now pushed shares of AYR within range of triggering a major breakout trade.

If you're bullish on AYR, then look for long-biased trades as long as this stock is trending above some near-term support levels at $16.80 or $16.01, and then once it breaks out above some key overhead resistance levels $17.73 to $17.94 a share and then above to its 52-week high at $18.12 a share with high volume. Look for a sustained move or close above those levels with volume that hits near or above its three-month average action of 539,800 shares. If that breakout triggers soon, then AYR will set up to enter new 52-week high territory, which is bullish technical price action. Some possible upside targets off that breakout are $20 to $25 a share.

To see more stocks with notable insider buying, check out the Stocks With Big Insider Buying portfolio on Stockpickr.

-- Written by Roberto Pedone in Delafield, Wis.

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At the time of publication, author had no positions in stocks mentioned.

Roberto Pedone, based out of Delafield, Wis., is an independent trader who focuses on technical analysis for small- and large-cap stocks, options, futures, commodities and currencies. Roberto studied international business at the Milwaukee School of Engineering, and he spent a year overseas studying business in Lubeck, Germany. His work has appeared on financial outlets including CNBC.com and Forbes.com. You can follow Pedone on Twitter at www.twitter.com/zerosum24 or @zerosum24.