GPRO ▲ +18.3% - GoPro, Inc. $GPRO - Markiplier is now GoPro’s biggest shareholder - The YouTuber recently posted a video promoting GoPro’s new Mission 1 ILS camera -- Verge GoPro shares surged 18.3% today following news that popular YouTuber Markiplier has become the company's largest shareholder. Markiplier's substantial stake, combined with his recent promotion of GoPro's new Mission 1 ILS camera to his massive audience, appears to have signaled strong confidence in the brand and its product direction to investors. 31-AUG-2026 12:39 PM ET