After a big week for stocks related to artificial intelligence, CNBC's Jim Cramer told investors it may be time to ring the register for many of these companies that have seen massive

gains. "Let's not be too greedy," he said. "Remember, this remarkable, albeit limited, narrow, year — you don't want to spoil it by refusing to ring the register on

every one of your stocks that may be AI." Cramer reviewed the significant surges in the AI sector this week, starting with Apple's record-breaking run after the company announced

new AI programming that could boost iPhone sales. Oracle then soared after it reported earnings and announced partnerships with Microsoft and Alphabet. Chipmaker Broadcom beat estimates, and

analysis by chartist Larry Williams, who suggested Nvidia has reached a top and could decline until late July. "We know we've been feeling a little greedy, and it's quite

unbecoming — when you have big gains, you need to take something off the table," Cramer said. "I am still a true believer in Nvidia, but I don't want to be oblivious to the

scale of this massive run." JIM CRAMER'S GUIDE TO INVESTING Click here to download JIM CRAMER'S GUIDE TO INVESTING at no cost to help you build long-term wealth and invest

smarter. _Sign up now__ for the CNBC Investing Club to follow Jim Cramer's every move in the market._ Disclaimer The CNBC Investing Club Charitable Trust holds shares of Nvidia, Apple,

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