While there may be various reasons why insiders sell eg to u...

While there may be various reasons why insiders sell eg to use proceeds for some personal reasons such as buying a house or other assets, redeeming a loan etc there can only be one reason that they buy. That they with all the insider knowledge of the company, think it's share price will go up and appreciate better than other investments. Or that the share price does not reflect it's intrinsic value or prospects. So, the buy action is always the better indicator.