• Shares of Kodak rose about 70 percent pre-market after doubling Tuesday. The former camera and film heavyweight said yesterday that it would use blockchain technology and launch a “photo-centric cryptocurrency” called Kodakcoin. Chief Executive Officer Jeff Clarke then told Barron’s that “this doesn’t change the fundamentals in a way that means the stock should double.”

• Executives from Helios and Matheson Analytics Inc., the majority owner of film subscription service MoviePass Inc., said in a Yahoo Finance interview Tuesday that they would consider an initial coin offering and have been examining blockchain technology. The stock is up 12 percent pre-market.

• Shares of Seagate Technology Plc, the largest maker of computer drives, surged as much as 16 percent Monday after a little-followed blog contributor suggested the company may have a stake in Ripple, the company behind the third-most-valuable cryptocurrency. Seagate hasn’t commented on the rumor.

• Western Union Co. shares climbed as much as 6.1 percent Friday, the biggest gain since July 2015, after a website called Ripple News reported an unconfirmed connection between the money-transfer firm and Ripple. Western Union declined to comment.

This article was provided by Bloomberg News.

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