Welcome to our dedicated page for Magnite SEC filings (Ticker: MGNI), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Programmatic advertising can feel like alphabet soup, and Magnite’s filings are no exception. Revenue splits across CTV, online video, display, and audio, while acquisitions and traffic-acquisition costs add layers of jargon that stretch a single 10-K past 300 pages. If you have ever asked, “How do I find Magnite insider trading Form 4 transactions?� or “Where is the Magnite quarterly earnings report 10-Q filing?�, you already know the challenge.
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All SEC materials are covered: 10-Q quarterly updates, 8-K event notices, definitive proxy statements on executive compensation, and even niche exhibits. Need the story behind a sudden CTV partnership? Click the Magnite 8-K material events explained tile. Curious about option grants? The Magnite executive stock transactions Form 4 table is already filtered. From “Magnite proxy statement executive compensation� to “Magnite SEC filings explained simply,� every document is searchable, summarized, and linked—so analysts can monitor competitive positioning, track insider sentiment, and act on data without sifting through PDFs.
Dillard’s, Inc. (DDS) Form 4 filing dated 07/02/2025 discloses a modest open-market purchase by long-time insider Drue Matheny, Executive Vice President and Director. On 06/30/2025 Matheny acquired 19 Class A common shares at $413.32 each, increasing her direct holding to 403,904 shares. She also continues to hold 36,648 shares through the company retirement plan and 9,821 shares indirectly (7,300 as trustee of the GST Trust and 2,521 held by her spouse). No derivative transactions were reported.
The purchase represents less than 0.005% of her direct ownership and is immaterial to DDS’s 17 million share float, yet any insider buying—particularly by a senior executive—may be interpreted as a confidence signal. There were no sales, option exercises, or 10b5-1 plan indications, and the filing confirms her continuing status as both officer and director.
Magnite, Inc. (MGNI) filed a Form 144 indicating a planned sale of 9,289 common shares worth approximately $204,358 at prevailing market prices. The shares were originally acquired on 02/15/2024 as restricted stock directly from the issuer and will be executed through Morgan Stanley Smith Barney LLC on or about 06/30/2025. Total shares outstanding are reported at 141,110,559, so the proposed sale represents less than 0.01 % of the float.
The filing lists David Buonasera as the selling shareholder, who has already disposed of 12,395 shares over the past three months for gross proceeds of $194,776.59. While the dollar amounts are modest relative to Magnite’s market capitalization, consecutive insider sales can raise sentiment concerns for some investors. The form contains no operational or financial performance data and makes no assertions about Magnite’s fundamentals; it solely discloses the insider’s intent to sell under Rule 144.
Guidewire Software, Inc. (GWRE) � Form 144 filing dated 30 June 2025 discloses a proposed sale of 1,400 common shares by insider Mike Rosenbaum through Morgan Stanley Smith Barney. The planned transaction is valued at � US$0.33 million, based on the stated aggregate market value of US$331,646. With 84.2 million shares outstanding, the new sale represents roughly 0.002% of total shares.
The filing also details a consistent pattern of insider disposals during the prior three-month window. Between 31 March 2025 and 23 June 2025, Rosenbaum executed 21 separate trades totaling 24,125 shares, generating � US$5.33 million in gross proceeds. Adding the proposed sale raises cumulative disposals to 25,525 shares—still well below the 1% Rule 144 threshold and unlikely to create mechanical selling pressure in the secondary market.
While the dollar amounts are modest relative to Guidewire’s market capitalisation, the steady cadence of transactions may attract investor scrutiny over management’s near-term sentiment. The filing does not reference a Rule 10b5-1 trading plan; however, the signature page reiterates the standard representation that the insider is not in possession of undisclosed material adverse information.
No operational metrics, earnings data or corporate events are included in this filing. Consequently, the immediate financial impact on GWRE appears neutral; nevertheless, persistent insider selling can influence perception and warrants monitoring alongside forthcoming earnings releases and guidance.
Classover Holdings, Inc. (KIDZW) has called a virtual special meeting for July 18, 2025 to seek stockholder approval for two pivotal capital-structure actions.
Proposal 1 � “Nasdaq Proposal�: authorizes the issuance of Class B common stock above the 19.99% threshold required by Nasdaq rules in connection with (i) a $400 million Equity Purchase Facility Agreement (EPFA) with Solana Strategic Holdings LLC and (ii) up to $500 million of senior secured convertible notes under a May 30, 2025 Securities Purchase Agreement. Both agreements allow issuance below the Nasdaq “Minimum Price� and could trigger a change of control, hence the need for shareholder consent.
Proposal 2 � “Authorized Share Proposal�: amends the certificate of incorporation to raise authorized Class B shares from 450 million to 2 billion. The board says the additional capacity will (1) cover all shares issuable under the EPFA and note conversions and (2) support future financing, equity compensation and strategic M&A.
Voting dynamics: CEO & Chair Hui Luo owns all 6.54 million Class A shares (25 votes each) plus 522.8 k Class B shares, giving management roughly 91% of total voting power. A Voting Agreement obligates Luo to vote “FOR� both items, effectively guaranteeing passage.
Capital & structural implications:
- The EPFA allows discounted share sales at 95% of the lowest VWAP over the prior three trading days, incentivising rapid resale by the investor.
- The notes are senior, secured by all company assets (including crypto holdings) and prohibit cash dividends while outstanding.
- If approved, common shareholders face potentially massive dilution and a decline in per-share voting and economic interests.
Strategic rationale & risks: Proceeds back a “Solana-centric� digital-asset treasury strategy that includes buying, staking and validator operations. The proxy enumerates extensive risks: crypto price volatility, potential classification of SOL as a security, 1940 Act “investment company� issues, custody & cyber-security exposure, restrictive debt covenants and dilution. Failure to obtain approval would cap issuances at 19.99%, limit access to capital, and force repeated shareholder meetings.
Board recommendation: vote FOR both proposals.
Magnite (NASDAQ: MGNI) filed a Form 4 detailing transactions by Chief Product Officer Adam Soroca on 24 Jun 2025.
Soroca exercised 8,329 options at $1.97 and sold 44,519 common shares at $20.00, generating roughly $0.89 million and reducing his direct stake by about 10% to 400,927 shares.
The trades were executed under a Rule 10b5-1 plan adopted 7 Mar 2025. The options were fully vested and remain exercisable until 15 Mar 2028.
Magnite (NASDAQ:MGNI) filed a Form 4 reporting that director Paul Caine sold 5,000 common shares on 06/24/2025 at $20.00 per share, generating proceeds of roughly $100,000. The transaction was executed under a previously adopted Rule 10b5-1 trading plan dated 08/15/2024. After the sale, Caine’s direct beneficial ownership stands at 188,603 shares. No other securities or derivative positions were disclosed.
Magnite (NASDAQ: MGNI) filed a Form 4 showing CEO Michael G. Barrett sold 300,000 shares of common stock on 06/24/2025 at a weighted-average price of $20.01, realizing roughly $6.0 million.
The sale was executed under a Rule 10b5-1 plan adopted 03/12/2025. Barrett’s direct holdings fell from 656,708 to 356,708 shares, a reduction of about 46%.
No derivative trades were reported. While pre-scheduled, the magnitude of the disposition is material and could affect perceptions of insider confidence.
Magnite (NASDAQ:MGNI) filed a Form 4 disclosing that CFO David Day exercised 71,000 stock options at $5.28 and immediately sold the same number of common shares.
The trades, executed on 24 & 26 June 2025 under a pre-arranged Rule 10b5-1 plan, generated gross proceeds of roughly $1.45 million (35k @ $19.95, 36k @ $20.95). Following these transactions, Day’s direct ownership fell to 443,528 shares, a reduction of about 14% of his prior holdings.
The options stem from an April 2021 grant that vests monthly through April 2030. No additional derivatives were sold, and Day retains 44,784 unexercised options from the award. The sizeable sale may influence investor sentiment given the executive’s senior role.
Magnite, Inc. (MGNI) � Form 144 filing dated 06/26/2025
Officer David Day has filed a Form 144 indicating his intention to sell up to 36,000 common shares through Morgan Stanley Smith Barney on or about 06/26/2025. At the recent market price used in the filing, the shares are valued at $754,200. The company has 141,110,559 shares outstanding, so the proposed sale represents roughly 0.026 % of shares outstanding and poses no dilution risk to current shareholders.
Day adopted a Rule 10b5-1 trading plan on 03/13/2025, which pre-authorises trades and reduces the likelihood of trades being based on undisclosed information.
Form 144 also discloses that during the past three months Day sold:
- 38,146 shares on 06/18/2025 for $722,866.70
- 35,000 shares on 06/24/2025 for $698,250.00
Together with the new notice, the officer has sold or plans to sell 109,146 shares worth approximately $2.18 million, equal to about 0.077 % of shares outstanding.
Key Take-aways for investors
- The filing signals continued insider selling but under a 10b5-1 plan, indicating procedural compliance.
- The size of the sale is immaterial to the company’s capital structure but may be monitored as a sentiment indicator.
Magnite, Inc. (MGNI) � Form 144 filing dated June 24, 2025 discloses a planned insider sale under Rule 144 of the Securities Act.
- Seller & quantity: Michael Barrett intends to sell 300,000 common shares.
- Estimated proceeds: Aggregate market value stated at $6.0 million, implying a reference price of roughly $20 per share.
- Broker: Raymond James & Associates, 880 Carillon Parkway, St. Petersburg, FL 33716.
- Timing: Shares are expected to be sold on or about 06/24/2025 on the NASDAQ.
- Issuer share base: 135,574,532 shares outstanding; proposed sale equals about 0.22 % of total shares.
- Prior insider activity: The same seller disposed of 75,000 shares during 06/16�06/18/2025 for gross proceeds of $1.369 million.
- Acquisition history: All shares stem from restricted-stock grants received between 05/15/2019 and 02/01/2025.
The filing contains no additional remarks, relationships, or adverse information statements beyond the standard Rule 144 affirmations. Investors often monitor Form 144 notices as sentiment indicators; however, the transaction represents a small fraction of shares outstanding and does not create dilution.