Magnite Stock: Insider Sale Sparks Curious Questions?

Robert F Spillane, a member of Magnite‘s board, sold 12,500 shares on November 21, 2025, according to a SEC Form 4 filing. It’s the kind of event that makes you wonder if a squirrel just dropped an acorn on the stock market’s roof-enough to make you glance up, but not quite a storm.

The total number of shares sold minus any shares bought during a specific period.

Open-market transaction:

A trade of securities conducted on a public exchange, not through private or pre-arranged deals.

SEC Form 4:

A required filing disclosing insider trades by company officers, directors, or large shareholders.

Weighted average purchase price:

The average price paid per share, adjusted for the number of shares in each transaction.

Direct ownership:

Shares held in an individual’s own name, not through trusts or indirect accounts.

Outstanding shares:

All shares of a company currently held by shareholders, excluding treasury shares.

Sell-side advertising platform:

Technology that helps publishers manage and sell their digital advertising inventory to buyers.

Publisher:

An entity that owns or operates digital media properties and sells advertising space.

Connected TV (CTV):

Television content streamed via internet-connected devices, such as smart TVs or streaming boxes.

App developer:

A person or company that creates software applications, often for mobile or digital platforms.

Insider:

A company executive, director, or major shareholder with access to non-public company information.

TTM:

The 12-month period ending with the most recent quarterly report.

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2025-11-23 07:44