Insiders buy stock in their own companies for only one reason – they think the stock will be going up.

Insider Trading – MDT

Just last Thursday, A director of Medtronic Inc. named Jack Schuler bought $342,000 of his own stock. This could have strong bullish implications about the future direction of MDT stock.

MDT weekly bar chart:

Insider Trading – ECL

William H Gates III, a 10% owner of Ecolab Inc, bought a whopping $38,964,000 in ECL stock. That’s a lot of stock.

Weekly bar chart of ECL: