Magnite director sells 37,337 shares under 10b5-1 plan
MAGNITE, INC. director Douglas S. Knopper reported an open-market sale of 37,337 shares of common stock on June 16, 2026 at a weighted average price of $18.10 per share, with individual trade prices ranging from $18.00 to $18.25.
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Form Type
4
Rhea-AI Filing Summary
MAGNITE, INC. director Douglas S. Knopper reported an open-market sale of 37,337 shares of common stock on June 16, 2026 at a weighted average price of $18.10 per share, with individual trade prices ranging from $18.00 to $18.25.
The transaction was executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 12, 2025. Following this sale, Knopper directly holds 125,810 shares of Magnite common stock.
Insider Trade Summary 10b5-1
Net Seller: 37,337 shares
Net Sell
1 txn
Insider
Knopper Douglas S
Role
Director
Sold
37,337 shs ($676K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock | 37,337 | $18.10 | $676K |
Holdings After Transaction:
Common Stock — 125,810 shares (Direct)
Footnotes (2)
- F1. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 12, 2025.
- F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.00 to 18.25, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4.
Key Figures
Shares sold: 37,337 shares
Weighted average sale price: $18.10 per share
Sale price range: $18.00–$18.25 per share
+2 more
5 metrics
Shares sold
37,337 shares
Open-market sale of Magnite common stock on June 16, 2026
Weighted average sale price
$18.10 per share
Average price for the 37,337 shares sold
Sale price range
$18.00–$18.25 per share
Price range across multiple sale transactions
Shares owned after sale
125,810 shares
Douglas S. Knopper’s direct Magnite holdings post-transaction
Trading plan adoption date
December 12, 2025
Date Knopper adopted the Rule 10b5-1 trading plan
Key Terms
Rule 10b5-1 trading plan, weighted average price, open-market sale, Common Stock
4 terms
Rule 10b5-1 trading plan regulatory
"The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 12, 2025."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
open-market sale financial
"transaction_action: "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Common Stock financial
"security_title: "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transaction did Magnite (MGNI) director Douglas S. Knopper report?
Douglas S. Knopper reported selling 37,337 shares of Magnite common stock in an open-market transaction. The sale occurred on June 16, 2026, as part of a pre-arranged Rule 10b5-1 trading plan and was disclosed in a Form 4 filing.
Was the Magnite (MGNI) insider sale made under a Rule 10b5-1 plan?
Yes. The filing states the sale was executed under a Rule 10b5-1 trading plan adopted by Douglas S. Knopper on December 12, 2025. Such plans pre-schedule trades, which can indicate routine portfolio management rather than discretionary timing.
What type of transaction is reported for Magnite (MGNI) in this Form 4?
The Form 4 reports an open-market sale of common stock, coded as “S” for sale. It involves 37,337 Magnite shares sold at a weighted average price of $18.10 per share, with prices spanning from $18.00 to $18.25 during the transaction.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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