Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Eastman Kodak (NYSE: EK) popped 11% in intraday trading today on news that senior executives are buying the stock.

So what: Securities and Exchange Commission filings late Tuesday disclosed recent share purchases of about $200,000 each by CEO Antonio Perez and presiding board director Richard Braddock. In addition, Kodak's CFO bought about $36,000 worth of Kodak stock.

Now what: Insider buying is a closely watched bullish indicator. On an internal Kodak website, Perez told employees the executives' purchases "reflect our confidence in the company's future and our belief in the potential of the Kodak transformation." Another recent positive for Kodak is last week's win in the latest round in a patent dispute with Apple (Nasdaq: AAPL).

Interested in more info on Eastman Kodak? Add it to your watchlist by clicking here.

Fool contributor Cindy Johnson does not own shares of any company named above. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.