GPRO ▲ +85.2% - GoPro, Inc. $GPRO GoPro shares surged after Bloomberg reported that YouTuber and filmmaker Mark “Markiplier” Fischbach acquired an 8.5% stake, making him the company’s largest single shareholder. The Details: • Investor rationale: Fischbach called GoPro undervalued and characterized the investment as a conviction position aimed at making filmmaking more accessible—not an activist campaign. • Product connection: He praised the company’s Mission 1 ILS camera and said he plans to use it in future films. GoPro shares surged 85.2% after Bloomberg reported that YouTuber and filmmaker Mark "Markiplier" Fischbach acquired an 8.5% stake, becoming the company's largest single shareholder. Fischbach, who called the company undervalued, said he views it as a conviction investment to make filmmaking more accessible and plans to use GoPro's products in his own films. 01-SEP-2026 05:31 AM ET