Every Form 4 that Magnite Inc (MGNI) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow MGNI and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full MGNI filings page.
MAGNITE, INC. Chief Financial Officer David Day reported a tax-related share disposition. On February 15, 2026, 30,617 shares of common stock were forfeited at $11.70 per share to cover withholding taxes on vesting restricted stock units, a non-discretionary transaction, leaving him with 507,459 shares directly owned.
MAGNITE, INC. President, Operations Katie Seitz Evans reported a non-discretionary forfeiture of 27,428 shares of common stock at $11.70 per share. The shares were withheld by the company to cover tax obligations arising from the vesting of restricted stock units. After this tax-withholding disposition, she holds 508,044 shares directly.
MAGNITE, INC. chief legal officer Aaron Salt reported a tax-withholding disposition of 12,761 shares of common stock. These shares were non-discretionarily forfeited to the company at $11.70 per share to cover tax obligations arising from the vesting of restricted stock units, rather than being sold on the open market. After this withholding event, Salt directly holds 275,643 shares of Magnite common stock.
MAGNITE, INC. President, Revenue Sean Patrick Buckley reported a disposition of 26,942 shares of common stock at $11.70 per share. The shares were non-discretionarily forfeited to cover tax withholding obligations tied to vested restricted stock units. After this tax-withholding disposition, Buckley directly held 402,999 common shares.
Magnite, Inc.'s chief financial officer David Day reported the vesting of performance-based stock units and related tax withholding. On January 9, 2026, he acquired 72,675 shares of common stock at $0 per share upon the vesting of performance stock units granted under Magnite's Amended and Restated 2014 Equity Incentive Plan. The number of units that vested was based on the company achieving 126.35% of its performance goal over a three-year total stockholder return period relative to the Russell 2000 index.
To cover tax withholding obligations from this vesting, 35,169 shares of common stock were automatically forfeited at a price of $16.17 per share pursuant to an arrangement mandated by the company, rather than an open-market sale decision by the executive. After these transactions, Day directly beneficially owned 538,076 shares of Magnite common stock.
Magnite, Inc. chief product officer Adam Lee Soroca reported the vesting and settlement of performance stock units into common shares. On January 9, 2026, 51,300 performance stock units converted into an equal number of common shares at $0 exercise price under the company’s Amended and Restated 2014 Equity Incentive Plan, following achievement of 126.35% of the target based on a three-year total stockholder return test versus Russell 2000 companies. To cover tax withholding on this vesting, 25,330 common shares were automatically forfeited at a price of $16.17 per share. After these transactions, Soroca directly owned 428,887 shares of Magnite common stock.
Magnite, Inc. reported an equity vesting event for its Chief Technology Officer, David Buonasera. On January 9, 2026, 22,935 performance stock units (PSUs) granted under the company’s Amended and Restated 2014 Equity Incentive Plan converted into the same number of common shares at an exercise price of $0.
The PSUs vested based on Magnite’s total stockholder return over a three-year period starting January 1, 2023, compared with companies in the Russell 2000 index. The award could vest from 0% to 150% of the target amount, and the compensation committee determined achievement of 126.35%, resulting in 22,935 shares vesting.
To cover tax withholding obligations tied to this vesting, 12,330 shares of common stock were automatically forfeited at a price of $16.17 per share. After these transactions, Buonasera directly held 319,232 shares of Magnite common stock.
Magnite, Inc. chief legal officer Aaron Saltz reported the vesting of performance stock units and related share withholding for taxes. On January 9, 2026, 28,215 performance stock units converted into 28,215 shares of Magnite common stock at an exercise price of $0 under the company’s Amended and Restated 2014 Equity Incentive Plan. The award’s vesting was based on Magnite’s total stockholder return over a three-year period relative to companies in the Russell 2000 index, with performance certified at 126.35% of target. To satisfy tax withholding obligations tied to this vesting, 15,026 shares of common stock were forfeited at a price of $16.17 per share under an issuer‑mandated arrangement. Following these transactions, Saltz directly held 288,404 shares of Magnite common stock.
Magnite, Inc. executive Sean Patrick Buckley, President, Revenue, reported the vesting of performance-based equity and related tax share withholding. On January 9, 2026, 64,125 performance stock units were converted into an equal number of shares of Magnite common stock at an exercise price of $0 under the company’s Amended and Restated 2014 Equity Incentive Plan. The award’s vesting was based on Magnite’s total stockholder return over a three-year period starting January 1, 2023, relative to Russell 2000 companies, with achievement determined at 126.35%, resulting in the 64,125 vested shares. To cover tax withholding tied to this vesting, 30,369 shares of common stock were forfeited at a price of $16.17 per share. Following these transactions, Buckley directly holds 429,941 shares of Magnite common stock.
Magnite, Inc. President, Operations Katie Seitz Evans reported performance-based stock vesting and related tax share withholding. On January 9, 2026, 51,300 performance stock units converted into 51,300 shares of common stock at $0 under the company’s Amended and Restated 2014 Equity Incentive Plan, based on 126.35% total shareholder return achievement over a three-year period versus the Russell 2000 index. To cover tax withholding on this vesting, 26,836 shares of common stock were automatically forfeited at $16.17 per share under an issuer-mandated arrangement. After these transactions, Evans directly held 535,472 shares of Magnite common stock.
Magnite, Inc. reported insider equity activity by CEO and director Michael G. Barrett. On January 9, 2026, 213,750 performance stock units vested and were converted into an equal number of shares of Magnite common stock at an exercise price of $0 under the company’s Amended and Restated 2014 Equity Incentive Plan. On the same date, 109,742 shares of common stock were automatically forfeited at $16.17 per share to satisfy tax withholding obligations tied to this vesting. After these transactions, Barrett directly held 435,711 shares of Magnite common stock.
Magnite, Inc. (MGNI) reported an insider stock sale by a senior executive. The company’s President, Revenue filed a Form 4 disclosing that on 11/24/2025, they sold 2,213 shares of Magnite common stock at a price of $14.50 per share in an open-market transaction.
After this sale, the executive beneficially owns 268,912 shares of Magnite common stock in direct ownership. The filing notes that the transaction was executed under a pre-arranged Rule 10b5-1 trading plan adopted on 11/24/2023, which is designed to allow insiders to trade shares according to a preset schedule.
Magnite, Inc. director reports stock sale
A director of Magnite, Inc. (MGNI) reported selling 12,500 shares of common stock on 11/21/2025. The sale is coded as an open-market or private sale, with a weighted average price of $14.22 per share, based on multiple trades executed between $14.22 and $14.23. After this transaction, the director beneficially owns 53,917 shares of Magnite common stock in direct ownership form.
The filing notes that detailed trade-by-trade pricing information within the reported range is available upon request from the company, any security holder, or the SEC staff.
Magnite, Inc. insider transaction: A company officer, identified as President, Revenue, reported two transactions in Magnite, Inc. common stock. On 11/15/2025, 11,642 shares were forfeited at $14.15 per share to cover tax withholding obligations tied to the vesting of restricted stock units, as required by the company. On 11/18/2025, 4,426 shares were sold at a weighted average price of $13.36 per share under a pre‑arranged Rule 10b5‑1 trading plan adopted on November 24, 2023. After these transactions, the officer beneficially owned 271,125 shares of Magnite common stock directly.
Magnite, Inc. reported insider transactions by its Chief Product Officer. On 11/15/2025, 9,422 shares of common stock were forfeited at $14.15 per share to cover tax withholding tied to the vesting of restricted stock units, under an arrangement mandated by the company. After this, the officer held 336,971 shares.
On 11/18/2025, the officer sold 10,857 shares of Magnite common stock at a weighted average price of $13.23 per share, with individual sale prices ranging from $13.13 to $13.30. This sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on May 28, 2025. Following the reported sale, the officer directly owned 326,114 shares of Magnite common stock.
Magnite, Inc. (MGNI) reported a routine insider share transaction by its President, Operations. On 11/15/2025, the executive had 10,354 shares of common stock forfeited at a reported price of $14.15 per share. This was a non-discretionary forfeiture required by the company to cover tax withholding obligations tied to the vesting of restricted stock units, meaning the shares were withheld rather than sold on the open market. Following this tax-related forfeiture, the officer beneficially owned 383,735 shares of Magnite common stock in direct form.
Magnite, Inc. (MGNI) reported an insider equity transaction involving its chief technology officer. On 11/15/2025, 7,129 shares of common stock were forfeited in a non-discretionary transaction to cover tax withholding obligations tied to the vesting of restricted stock units. After this tax-related forfeiture, the reporting person beneficially owned 231,824 shares of Magnite common stock. This total includes 324 shares acquired on November 15, 2025 under the company’s Employee Stock Purchase Plan.
Magnite, Inc. (MGNI) reported an insider equity transaction by its Chief Accounting Officer on 11/15/2025. The filing shows a disposition of 3,549 shares of common stock at $14.15 per share, coded as transaction type "F," which indicates shares were withheld by the company to cover tax obligations. These shares were forfeited in connection with the vesting of restricted stock units under a non-discretionary, issuer-mandated arrangement. Following this tax withholding transaction, the reporting officer beneficially owns 89,349 shares of Magnite common stock directly.
Magnite, Inc. insider Aaron Saltz, Chief Legal Officer, reported an administrative share transaction related to equity compensation. On 11/15/2025, 5,695 shares of Magnite common stock were forfeited at a price of $14.15 per share to cover tax withholding obligations arising from the vesting of restricted stock units. After this tax-related forfeiture, Saltz beneficially owned 209,384 shares of Magnite common stock directly. The transaction was characterized as a non-discretionary forfeiture mandated by the company’s arrangement for handling tax obligations on vesting awards.
Magnite, Inc. reported an insider equity transaction by its CEO and director. On 11/15/2025, the reporting person disposed of 12,198 shares of Magnite common stock at a price of $14.15 per share. This disposition is identified with transaction code "F," which indicates that the shares were withheld by the company to satisfy tax withholding obligations.
After this tax-related forfeiture tied to the vesting of restricted stock units, the reporting person beneficially owns 237,659 shares of Magnite common stock in direct ownership. The filing notes that the forfeiture was non-discretionary and mandated by Magnite under an arrangement designed to cover the reporting person’s tax liabilities arising from equity compensation.
Magnite, Inc. reported an insider share transaction by its Chief Financial Officer. On 11/15/2025, the CFO disposed of 13,197 shares of common stock at a price of $14.15 per share. The company states this was a non-discretionary forfeiture of shares mandated by Magnite to cover tax withholding obligations related to the vesting of restricted stock units, rather than an open-market sale initiated by the executive. After this tax-related transaction, the reporting person beneficially owns 368,909 shares of Magnite common stock directly.
Magnite (MGNI) insider transaction: A company director reported selling 5,000 shares of common stock on 10/24/2025 at $20 per share, according to a Form 4 filing. Following the sale, the reporting person beneficially owns 153,603 shares, held directly.
The filing notes the sale was executed under a Rule 10b5-1 trading plan adopted on August 15, 2024, which allows pre-scheduled trades. The reporting person filed individually, and the role is disclosed as Director.
Paul Caine, a director of Magnite, Inc. (MGNI), reported a sale of common stock under a pre-established Rule 10b5-1 plan. On 09/19/2025 the reporting person sold 7,500 shares at $25 per share, reducing his beneficial ownership to 158,603 shares. The filing indicates the trades were executed pursuant to a 10b5-1 trading plan adopted on August 15, 2024, and the Form 4 was signed by an attorney-in-fact on behalf of the reporting person.
A MagNite insider, Chief Legal Officer Aaron Saltz, sold 8,522 shares of MAGNITE, INC. (MGNI) on 09/19/2025 at $24.50 per share, reducing his direct holdings to 215,079 shares. The filing states the sale was executed under a Rule 10b5-1 trading plan adopted by the reporting person on March 14, 2025, indicating the transactions were preplanned. No additional derivative transactions or amendments are reported.
Insider sale disclosed: Aaron Saltz, Chief Legal Officer of Magnite, Inc. (MGNI), reported a sale of 6,180 shares of common stock on 09/15/2025 at a price of $23.94 per share. After the sale, Mr. Saltz beneficially owned 223,601 shares, held directly. The filing states the sale was executed under a Rule 10b5-1 trading plan adopted March 14, 2025.