An advertising software company, MNTN runs a self-serve platform that lets brands buy and track commercials on connected TV and streaming services the same way they manage search and social ads. Founded in 2009 as SteelHouse, it renamed itself MNTN (pronounced "mountain") in 2021 to signal peak performance in TV advertising. In a fun twist, actor Ryan Reynolds' marketing agency Maximum Effort joined the company that year, with Reynolds serving as its chief creative officer.
Select a row to see that insider’s individual transactions. † Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -3.87M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.