Markiplier’s GoPro stake preceded his sponsored Mission One Pro review

Mark Fischbach, known online as Markiplier, reportedly became interested in GoPro’s Mission One Pro while filming *Iron Lung*. The camera has an interchangeable lens mount and was described as capable of producing cinema-level results for about $700, compared with roughly $7,000 for a cinema camera or the cost of renting one for a day.

Estimates in the account say Markiplier spent about $10 million–$12 million to acquire roughly 8% of GoPro. Other figures put his control at 3% of the company or his voting power at about 0.5%, reflecting uncertainty over the size and structure of his position. The purchases were reportedly made over the spring and summer, rather than five days before the news emerged through an SEC filing.

He later published a paid, highly positive review of the Mission One Pro. The reported sequence—using the product, buying GoPro shares, then promoting it—was presented as a possible fit between Markiplier’s filmmaking interests, the needs of smaller creators and GoPro’s sponsorship strategy. *Iron Lung* was cited as having grossed $51 million on a $3 million budget, though that does not mean Markiplier personally received the difference.