Both Blackberry and Samsung have denied acquisition rumorsABC News: BlackBerry, Samsung Deny Report of Takeover Talks
https://abcnews.go.com/Technology/wireStory/blackberry-shares-soar-takeover-talk-28228492
AsiaOne: Blackberry, Samsung deny takeover report
https://business.asiaone.com/news/blackberry-samsung-deny-takeover-report
What we've seen are buyers who rode the rumor wave getting ripped off... and short sellers whose stop triggers had them buying to cover also getting ripped off.
Buyers and short sellers should comiserate together - they (and Reuters) have all been had by a pump & dump scam.