Sean Buckley Sells 19,233 Shares of Magnite
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Jun 22 2026
0mins
Source: NASDAQ.COM
- Share Sale Details: On June 17, 2026, Sean Buckley sold 19,233 shares of Magnite for approximately $365,000, representing 4.90% of his direct holdings, reducing his stake from 392,747 to 373,514 shares, indicating a partial divestment from the company.
- Transaction Context: The sale was executed under a pre-arranged Rule 10b5-1 trading plan established in September 2025, aimed at avoiding legal issues related to insider trading, which suggests that Buckley's divestment was non-discretionary and did not raise investor concerns.
- Company Performance Recovery: Magnite reported first-quarter sales of $164.4 million in 2026, a 6% year-over-year increase, successfully reversing a net loss of $9.6 million in Q1 2025 to a net income of $4.4 million, demonstrating effective revenue growth and cost management.
- Increased Market Confidence: The company's partnerships with key digital advertising players like Walmart and a steady reduction in debt have bolstered investor confidence, leading to a rebound in stock prices, despite Buckley's sale not negatively impacting the market.
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Analyst Views on MGNI
Wall Street analysts forecast MGNI stock price to rise
10 Analyst Rating
10 Buy
0 Hold
0 Sell
Strong Buy
Current: 20.840
Low
24.00
Averages
28.11
High
39.00
Current: 20.840
Low
24.00
Averages
28.11
High
39.00
About MGNI
Magnite, Inc. is an independent sell-side advertising company. The Company provides technology solutions to automate the purchase and sale of digital advertising inventory. The Company's technology is used by publishers to monetize their content across all screens and formats including CTV, online video, display, and audio. Its platform features applications and services for sellers of digital advertising inventory, or publishers, that own and operate CTV channels, applications, websites and other digital media properties, to manage and monetize their inventory; applications and services for buyers, including advertisers, agencies, agency trading desks, and demand side platforms (DSPs), to buy digital advertising inventory; and a transparent, independent marketplace that brings buyers and sellers together and facilitates intelligent decision making and automated transaction execution at scale. Its SpringServe CTV platform offers CTV sellers a holistic solution.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
Investment Analysis: Magnite vs. Sea Limited
- Magnite Financial Performance: In FY 2025, Magnite's revenue reached nearly $714 million, reflecting a growth of approximately 6.9%, with a net income of about $144.6 million, indicating stable growth in the digital advertising sector despite a high customer concentration risk of 44%.
- Sea's Market Dominance: Sea achieved approximately $22.9 billion in revenue for FY 2025, a substantial increase of around 36.4%, with a net income close to $1.6 billion, showcasing its strong market position in e-commerce and digital entertainment across Southeast Asia and Latin America.
- Risk Profile Comparison: Magnite faces intense competition from Alphabet and Amazon, with high customer concentration and evolving global privacy regulations increasing compliance costs, while Sea must contend with competitive pressures from Alibaba and ByteDance, alongside its gaming division's reliance on hit titles.
- Valuation Discrepancy: Magnite's forward P/E ratio stands at 16.9x, lower than Sea's 26.0x, reflecting a lower valuation relative to sales for Magnite, while Sea commands a higher market premium due to its aggressive revenue growth trajectory.
See More
Investment Choices: Magnite vs. Sea
- Magnite's Market Position: Magnite holds a leading position in the sell-side advertising market with a focus on connected TV, achieving nearly $714 million in revenue for FY 2025, reflecting a growth of approximately 6.9%, which underscores its competitive edge in the rapidly expanding digital advertising sector.
- Sea's Ecosystem: Sea operates a massive ecosystem through its Shopee e-commerce platform and Garena digital entertainment division, generating about $22.9 billion in revenue for FY 2025, a substantial increase of roughly 36.4%, indicating its dominant market position and strong growth potential in Southeast Asia and Latin America.
- Financial Health: As of December 2025, Magnite's debt-to-equity ratio was close to 0.5 with a current ratio of approximately 1.0, demonstrating its short-term debt repayment capability; in contrast, Sea's debt-to-equity ratio stood at 0.3 with a current ratio of 1.6, indicating a more robust financial position.
- Competition and Risks: Magnite faces intense competition from Alphabet and Amazon, with a customer concentration risk of 44% of its revenue, heightening business risks; meanwhile, Sea must compete with Alibaba and ByteDance in the e-commerce space, while its gaming division's reliance on a few hit titles exposes it to shifts in player preferences.
See More
Magnite Executive Sells Shares Amid Market Recovery, No Investor Concern
- Transaction Overview: Sean Buckley, President of Revenue and Market Strategy at Magnite, sold 19,233 shares on June 17, 2026, for a total of $365,000, reducing his direct holdings to 373,514 shares valued at $6.8 million, indicating confidence in the company's future despite the sale.
- Historical Sale Comparison: The 19,233 shares sold are moderately above Buckley's historical average of 15,847 shares per transaction, yet remain within his established range, suggesting that this sale aligns with his long-term trading pattern without indicating a strategic shift.
- Non-Discretionary Trading Plan: This transaction was executed under a pre-arranged Rule 10b5-1 trading plan established in September 2025, aimed at avoiding insider trading allegations, which indicates that the sale was planned and does not affect his indirect holdings.
- Company Financial Performance: Magnite reported $164.4 million in revenue for Q1 2026, a 6% year-over-year increase, and transitioned from a net loss of $9.6 million in Q1 2025 to a net income of $4.4 million, reflecting positive progress in debt reduction and enhanced investor confidence.
See More
Sean Buckley Sells 19,233 Shares of Magnite
- Share Sale Details: On June 17, 2026, Sean Buckley sold 19,233 shares of Magnite for approximately $365,000, representing 4.90% of his direct holdings, reducing his stake from 392,747 to 373,514 shares, indicating a partial divestment from the company.
- Transaction Context: The sale was executed under a pre-arranged Rule 10b5-1 trading plan established in September 2025, aimed at avoiding legal issues related to insider trading, which suggests that Buckley's divestment was non-discretionary and did not raise investor concerns.
- Company Performance Recovery: Magnite reported first-quarter sales of $164.4 million in 2026, a 6% year-over-year increase, successfully reversing a net loss of $9.6 million in Q1 2025 to a net income of $4.4 million, demonstrating effective revenue growth and cost management.
- Increased Market Confidence: The company's partnerships with key digital advertising players like Walmart and a steady reduction in debt have bolstered investor confidence, leading to a rebound in stock prices, despite Buckley's sale not negatively impacting the market.
See More
Magnite Partners with Viasat to Launch In-Flight Advertising
- Partnership Announcement: Magnite has partnered with Viasat Aviation to introduce programmatic advertising in in-flight Wi-Fi and entertainment, leveraging the Viasat Ads platform to provide brands access to highly engaged audiences, significantly expanding the advertising market.
- Market Potential: Viasat's technology is utilized by over 60 airlines on more than 4,000 aircraft globally, and Magnite's programmatic infrastructure will enable advertisers to seamlessly reach millions of flying travelers, enhancing ad coverage and effectiveness.
- Advertising Innovation: By enabling real-time ad delivery, brands can instantly connect with flying travelers, breaking the long planning cycles traditionally associated with ad integration, and utilizing the high-attention environment of in-flight screens and personal devices to create new advertising opportunities.
- Strategic Implications: This collaboration not only enhances brand visibility in in-flight advertising but also provides airlines with new revenue streams, further solidifying Magnite's leadership position in the global advertising market.
See More
Magnite Executives Plan Stock Sales Amid Optimism
- Executive Stock Sale Plans: Magnite's CEO Michael Barrett plans to sell 100,000 shares valued at approximately $1.75 million following a stock option exercise, indicating executive confidence in the company's future.
- Insider Trading Dynamics: Barrett sold 178,596 shares on Monday for about $2.96 million, while director Douglas Knopper and CTO David Buonasera plan to sell 37,337 and 11,233 shares respectively, revealing the liquidity actions of executives.
- Market Sentiment Shift: Despite the planned insider sales, retail sentiment around Magnite shifted from 'bullish' to 'extremely bullish', reflecting confidence in the company's potential within the rapidly growing connected TV advertising market.
- Analyst Rating Support: BTIG initiated coverage of Magnite with a 'Buy' rating last week, highlighting its technology platform and partnerships with dentsu and JioHotstar as key growth drivers, further bolstering investor confidence.
See More
Investment Analysis: Magnite vs. Sea Limited
- Magnite Financial Performance: In FY 2025, Magnite's revenue reached nearly $714 million, reflecting a growth of approximately 6.9%, with a net income of about $144.6 million, indicating stable growth in the digital advertising sector despite a high customer concentration risk of 44%.
- Sea's Market Dominance: Sea achieved approximately $22.9 billion in revenue for FY 2025, a substantial increase of around 36.4%, with a net income close to $1.6 billion, showcasing its strong market position in e-commerce and digital entertainment across Southeast Asia and Latin America.
- Risk Profile Comparison: Magnite faces intense competition from Alphabet and Amazon, with high customer concentration and evolving global privacy regulations increasing compliance costs, while Sea must contend with competitive pressures from Alibaba and ByteDance, alongside its gaming division's reliance on hit titles.
- Valuation Discrepancy: Magnite's forward P/E ratio stands at 16.9x, lower than Sea's 26.0x, reflecting a lower valuation relative to sales for Magnite, while Sea commands a higher market premium due to its aggressive revenue growth trajectory.
See More
Investment Choices: Magnite vs. Sea
- Magnite's Market Position: Magnite holds a leading position in the sell-side advertising market with a focus on connected TV, achieving nearly $714 million in revenue for FY 2025, reflecting a growth of approximately 6.9%, which underscores its competitive edge in the rapidly expanding digital advertising sector.
- Sea's Ecosystem: Sea operates a massive ecosystem through its Shopee e-commerce platform and Garena digital entertainment division, generating about $22.9 billion in revenue for FY 2025, a substantial increase of roughly 36.4%, indicating its dominant market position and strong growth potential in Southeast Asia and Latin America.
- Financial Health: As of December 2025, Magnite's debt-to-equity ratio was close to 0.5 with a current ratio of approximately 1.0, demonstrating its short-term debt repayment capability; in contrast, Sea's debt-to-equity ratio stood at 0.3 with a current ratio of 1.6, indicating a more robust financial position.
- Competition and Risks: Magnite faces intense competition from Alphabet and Amazon, with a customer concentration risk of 44% of its revenue, heightening business risks; meanwhile, Sea must compete with Alibaba and ByteDance in the e-commerce space, while its gaming division's reliance on a few hit titles exposes it to shifts in player preferences.
See More
Magnite Executive Sells Shares Amid Market Recovery, No Investor Concern
- Transaction Overview: Sean Buckley, President of Revenue and Market Strategy at Magnite, sold 19,233 shares on June 17, 2026, for a total of $365,000, reducing his direct holdings to 373,514 shares valued at $6.8 million, indicating confidence in the company's future despite the sale.
- Historical Sale Comparison: The 19,233 shares sold are moderately above Buckley's historical average of 15,847 shares per transaction, yet remain within his established range, suggesting that this sale aligns with his long-term trading pattern without indicating a strategic shift.
- Non-Discretionary Trading Plan: This transaction was executed under a pre-arranged Rule 10b5-1 trading plan established in September 2025, aimed at avoiding insider trading allegations, which indicates that the sale was planned and does not affect his indirect holdings.
- Company Financial Performance: Magnite reported $164.4 million in revenue for Q1 2026, a 6% year-over-year increase, and transitioned from a net loss of $9.6 million in Q1 2025 to a net income of $4.4 million, reflecting positive progress in debt reduction and enhanced investor confidence.
See More
Sean Buckley Sells 19,233 Shares of Magnite
- Share Sale Details: On June 17, 2026, Sean Buckley sold 19,233 shares of Magnite for approximately $365,000, representing 4.90% of his direct holdings, reducing his stake from 392,747 to 373,514 shares, indicating a partial divestment from the company.
- Transaction Context: The sale was executed under a pre-arranged Rule 10b5-1 trading plan established in September 2025, aimed at avoiding legal issues related to insider trading, which suggests that Buckley's divestment was non-discretionary and did not raise investor concerns.
- Company Performance Recovery: Magnite reported first-quarter sales of $164.4 million in 2026, a 6% year-over-year increase, successfully reversing a net loss of $9.6 million in Q1 2025 to a net income of $4.4 million, demonstrating effective revenue growth and cost management.
- Increased Market Confidence: The company's partnerships with key digital advertising players like Walmart and a steady reduction in debt have bolstered investor confidence, leading to a rebound in stock prices, despite Buckley's sale not negatively impacting the market.
See More
Magnite Partners with Viasat to Launch In-Flight Advertising
- Partnership Announcement: Magnite has partnered with Viasat Aviation to introduce programmatic advertising in in-flight Wi-Fi and entertainment, leveraging the Viasat Ads platform to provide brands access to highly engaged audiences, significantly expanding the advertising market.
- Market Potential: Viasat's technology is utilized by over 60 airlines on more than 4,000 aircraft globally, and Magnite's programmatic infrastructure will enable advertisers to seamlessly reach millions of flying travelers, enhancing ad coverage and effectiveness.
- Advertising Innovation: By enabling real-time ad delivery, brands can instantly connect with flying travelers, breaking the long planning cycles traditionally associated with ad integration, and utilizing the high-attention environment of in-flight screens and personal devices to create new advertising opportunities.
- Strategic Implications: This collaboration not only enhances brand visibility in in-flight advertising but also provides airlines with new revenue streams, further solidifying Magnite's leadership position in the global advertising market.
See More
Magnite Executives Plan Stock Sales Amid Optimism
- Executive Stock Sale Plans: Magnite's CEO Michael Barrett plans to sell 100,000 shares valued at approximately $1.75 million following a stock option exercise, indicating executive confidence in the company's future.
- Insider Trading Dynamics: Barrett sold 178,596 shares on Monday for about $2.96 million, while director Douglas Knopper and CTO David Buonasera plan to sell 37,337 and 11,233 shares respectively, revealing the liquidity actions of executives.
- Market Sentiment Shift: Despite the planned insider sales, retail sentiment around Magnite shifted from 'bullish' to 'extremely bullish', reflecting confidence in the company's potential within the rapidly growing connected TV advertising market.
- Analyst Rating Support: BTIG initiated coverage of Magnite with a 'Buy' rating last week, highlighting its technology platform and partnerships with dentsu and JioHotstar as key growth drivers, further bolstering investor confidence.
See More
