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These 3 Stocks Have Huge Insider Buying

As earnings season comes to an end, so does the opportunity for a company’s officers and directors to snap up company shares with their own money. Most corporate governance policies restrict such activity to a fairly short period after quarterly earnings are announced. Judging by the sheer volume of meaningful insider purchases, insiders have been quite busy this month, according to data from Insiderinsights.com.

Trying to research the many companies with insider buying can be a daunting task. To winnow the field of research candidates, I only focus on companies with at least $100,000 -- and preferably a lot more -- in buying, minimal insider selling and actual buying, and not just stock options-conversions, which many sources cite as a type of insider buying.

Here’s a look at three companies with recent insider buying.

1. Inovio Pharmaceuticals, Inc. (NYSE: INO)

One of the hottest areas of biotech research involves the alteration of DNA mutations. This company is taking a slightly different approach: it’s developing vaccines against rogue genes and various viruses, many of which can lead to various types of cancers. Inovio’s INO-5150, for example, is entering Phase III testing as a vaccine against prostate cancer. Another vaccine, VGX-3100, targets cervical cancer.

How do these vaccines work? Inovio starts with fragments of the pathogen’s DNA linked to a specific disease or virus, and then alters the DNA to trigger an immune response against that rogue pathogen. The company is targeting other maladies such as HIV and influenza.

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Shares surged above $13 last month on news that Phase II results for VGX-3100 were favorable. Yet shares eventually slid below $10 on profit-taking, leading three insiders to acquire a combined $2.6 million in stock this month. To be sure, this is a long-term opportunity, as none of the company’s drugs will reach the market for several years. Meanwhile, with more than $100 million in cash, a roughly $10 million quarterly cash burn and a partnership with Roche Holdings -- which should reap milestone payments -- Inovio has little need to sell shares while it awaits an eventual possible revenue ramp.

2. Zais Financial Corp. (NYSE: ZFC)

It’s easy to see why director Christian Zugel recently bought $567,000 in company stock (at an average price of $18.93): The company’s stated book value is $22.37, translating into a price-to-book discount of more than 10%. Equally impressive, shares sport a dividend yield of nearly 10%.