Cramer's 6 Stocks in 60 Seconds: MANU MDVN GME AAPL UNP HEK

Check out Jim Cramer's latest trading recommendations on "Action Alerts Plus".

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NEW YORK (TheStreet) -- Here's what Jim Cramer had to say on CNBC's "Squawk On The Street" Tuesday:

Cramer said investors shouldn't touch the newly minted stock of Manchester United (MANU) . "Go see them in action but don't take any action in the stock," he said.

Medivation (MDVN) had some big news on a late-stage prostate cancer treatment that is "a very big deal," he added, noting the company's shares aren't done rising. The stock is a winner, Cramer concluded.

In contrast, Cramer said that a recent upgrade of GameStop (GME) has him scratching his head. "I don't know what they see here," he said, and advised using the strength to sell.

Cramer was bullish on Apple (AAPL) , a stock he owns for his charitable trust, Action Alerts PLUS. He said investors will be buying all the way into the expected launch of the new iPhone on Sept 12.

Cramer was also bullish on Union Pacific (UNP) , noting that auto sales remain strong and Union Pacific ships cars.

Finally, Cramer had good things to say about Heckmann (HEK) , even though it has been a disappointing stock for a long time. He said the company has delivered for shareholders with a big acquisition.

--Written by Scott Rutt in Washington, D.C.

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To watch replays of Cramer's video segments, visit the Mad Money page on CNBC.