Douglas S. Knopper, a director at Magnite, Inc. (NASDAQ:MGNI), sold 37,337 shares of common stock on August 6 at $22.72 per share, according to an SEC Form 4 filing.
Transaction summary
Transaction value based on SEC Form 4 weighted average sale price ($22.72); post-transaction value based on the August 6 market close ($24.32).
Key questions
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What was the catalyst for this transaction?
The sale was pre-arranged under a Rule 10b5-1 trading plan established in December 2025, a mechanism frequently used by corporate insiders to execute trades according to predetermined parameters to avoid potential conflicts. -
What is the extent of the insider’s remaining exposure?
Following this transaction, Knopper retains direct ownership of 88,473 shares, representing a 0.06% insider interest in the company. -
What financial context surrounds the company?
Magnite operates in the communication services sector as an advertising agency platform provider, with a market capitalization of $3.5 billion and trailing-twelve-month revenue of $742.0 million as of the August 6 market close. -
How has the stock performed leading up to this filing?
As of the transaction date, the company has delivered an 8% one-year total return, while reporting trailing-12-month net income of $166.9 million.
Company Overview
Company Snapshot
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Magnite operates a global digital advertising marketplace platform that provides publishers—including connected TV channels, mobile applications, and websites—with comprehensive tools and applications to manage and monetize their advertising inventory.
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The company generates revenue through a two-sided marketplace model, offering services and technology solutions to both supply-side participants (publishers) and demand-side participants (advertisers, agencies, agency trading desks, and demand-side platforms), facilitating programmatic advertising transactions.
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Magnite’s primary customers include digital publishers seeking to optimize ad revenue, advertising agencies and brands requiring efficient media buying solutions, and demand-side platforms that leverage the company’s infrastructure to execute targeted advertising campaigns at scale.
Magnite is a leading independent platform in the digital advertising technology sector, with a market capitalization of $3.5 billion and TTM revenues of $742.0 million. The company maintains a competitive advantage through its sophisticated, independent marketplace infrastructure that connects a diverse ecosystem of publishers and advertisers globally. With a demonstrated ability to generate substantial net income of $166.9 million TTM, Magnite is positioned as a critical infrastructure provider in the programmatic advertising landscape.
