Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MAGNITE, INC.MGNI · Entity 2049 | CHIEF PRODUCT OFFICER | February 15, 2026 | February 18, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
MAGNITE, INC.
Report date February 15, 2026 · Filed February 18, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 388,425 |
Ending reported balance
After 2026-02-18 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2026-02-15 · Tax withholding · Disposed 18,933 · Balance 409,954 F1: Represents the non-discretionary forfeiture of shares on behalf of the Reporting Person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. Row 2 · 2026-02-18 · Sale · Disposed 21,529 · Balance 388,425 F2: These sales were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2025. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents the non-discretionary forfeiture of shares on behalf of the Reporting Person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units.
F2: These sales were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 18, 2025.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 01, 2020 Filed Sep 3, 2020 20:29 UTC | MAGNITE, INC. MGNI · Entity 2049 | Exercise / conversionCommon Stock | 439 | $1.97 | $864.83 |
DisclosureSEC source: 0001209191-20-049409 · doc4.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 417,764 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: These exercises and sales were made pursuant to a Rule 10b5-1 Trading Plan adopted by the Reporting Person. Read SEC document |
| May 20, 2020 Filed May 20, 2020 23:31 UTC | MAGNITE, INC. RUBI · Entity 2049 | SaleCommon Stock | 9,676 | $5.13 | $49,637.88 |
DisclosureSEC source: 0001595974-20-000066 · wf-form4_159001745099964.xml · nonDerivative · entry 3 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 418,549 F1 · kind: Represents the non-discretionary sale of shares on behalf of the reporting person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.08 to $5.24, inclusive. The reporting person undertakes to provide The Rubicon Project, Inc., any security holder of The Rubicon Project, Inc., 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 ranges set forth in this footnote. Read SEC document |
| May 20, 2020 Filed Jun 5, 2020 20:43 UTC Amendment | MAGNITE, INC. RUBI · Entity 2049 | SaleCommon Stock | 10,900 | $5.13 | $55,917.00 |
DisclosureSEC source: 0001595974-20-000079 · wf-form4a_159138980160064.xml · nonDerivative · entry 3 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 417,325 F1 · kind: Represents the non-discretionary sale of shares on behalf of the reporting person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. F4 · shares: Amended to reflect the correct number of shares sold on behalf of the reporting person pursuant to an arrangement mandated by the Issuer to cover tax withholding obligations associated with the vesting ofrestricted stock units F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.08 to $5.24, inclusive. The reporting person undertakes to provide The Rubicon Project, Inc., any security holder of The Rubicon Project, Inc., 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 ranges set forth in this footnote. Read SEC document |
| May 19, 2020 Filed May 20, 2020 23:31 UTC | MAGNITE, INC. RUBI · Entity 2049 | SaleCommon Stock | 7,758 | $5.23 | $40,574.34 |
DisclosureSEC source: 0001595974-20-000066 · wf-form4_159001745099964.xml · nonDerivative · entry 2 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 428,225 F1 · kind: Represents the non-discretionary sale of shares on behalf of the reporting person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.08 to $5.39, inclusive. The reporting person undertakes to provide The Rubicon Project, Inc., any security holder of The Rubicon Project, Inc., 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 ranges set forth in this footnote. Read SEC document |
| May 19, 2020 Filed Jun 5, 2020 20:43 UTC Amendment | MAGNITE, INC. RUBI · Entity 2049 | SaleCommon Stock | 7,758 | $5.23 | $40,574.34 |
DisclosureSEC source: 0001595974-20-000079 · wf-form4a_159138980160064.xml · nonDerivative · entry 2 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 428,225 F1 · kind: Represents the non-discretionary sale of shares on behalf of the reporting person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.08 to $5.39, inclusive. The reporting person undertakes to provide The Rubicon Project, Inc., any security holder of The Rubicon Project, Inc., 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 ranges set forth in this footnote. Read SEC document |
| May 18, 2020 Filed May 20, 2020 23:31 UTC | MAGNITE, INC. RUBI · Entity 2049 | SaleCommon Stock | 8,317 | $5.43 | $45,161.31 |
DisclosureSEC source: 0001595974-20-000066 · wf-form4_159001745099964.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 435,983 F1 · kind: Represents the non-discretionary sale of shares on behalf of the reporting person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.31 to $5.63, inclusive. The reporting person undertakes to provide The Rubicon Project, Inc., any security holder of The Rubicon Project, Inc., 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 ranges set forth in this footnote. Read SEC document |
| May 18, 2020 Filed Jun 5, 2020 20:43 UTC Amendment | MAGNITE, INC. RUBI · Entity 2049 | SaleCommon Stock | 8,317 | $5.43 | $45,161.31 |
DisclosureSEC source: 0001595974-20-000079 · wf-form4a_159138980160064.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 435,983 F1 · kind: Represents the non-discretionary sale of shares on behalf of the reporting person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.31 to $5.63, inclusive. The reporting person undertakes to provide The Rubicon Project, Inc., any security holder of The Rubicon Project, Inc., 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 ranges set forth in this footnote. Read SEC document |
| April 01, 2020 Filed Apr 3, 2020 21:02 UTC | MAGNITE, INC. RUBI · Entity 2049 | GrantStock Option (right to buy) · Derivative | 84,908 | $0.00 Strike: $5.28 | $0.00 |
DisclosureSEC source: 0001595974-20-000046 · wf-form4_158594772974306.xml · derivative · entry 2 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 84,908 Underlying: Common Stock · 84,908 shares Expires 2030-04-01 F2 · price: Granted as compensation for services. F3 · derivative.exercise_date: 25% of the stock options will vest on April 1, 2021 and the remaining option shares will become exercisable in 36 equal installments each calendar month thereafter. Read SEC document |
| April 01, 2020 Filed Apr 3, 2020 21:02 UTC | MAGNITE, INC. RUBI · Entity 2049 | GrantCommon Stock | 112,928 | $0.00 | $0.00 |
DisclosureSEC source: 0001595974-20-000046 · wf-form4_158594772974306.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 444,300 F1 · shares: Represents restricted stock units that vest as follows: 30,585 on May 15, 2021, 7,058 on each August 15, November 15, February 15, and May 15 thereafter until February 15, 2024 and 4,705 on May 15, 2024. F2 · price: Granted as compensation for services. Read SEC document |
| January 16, 2020 Filed Jan 22, 2020 00:14 UTC | MAGNITE, INC. RUBI · Entity 2049 | Tax withholdingCommon Stock | 44,968 | $10.45 | $469,915.60 |
DisclosureSEC source: 0001595974-20-000017 · wf-form4_157965206348244.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 331,372 F1 · kind: Shares withheld by the issuer to cover the reporting person's tax liability incurred upon the vesting of the reporting person's restricted stock units. Read SEC document |
| November 18, 2019 Filed Nov 20, 2019 01:46 UTC | MAGNITE, INC. RUBI · Entity 2049 | SaleCommon Stock | 5,037 | $7.57 | $38,130.09 |
DisclosureSEC source: 0001595974-19-000148 · wf-form4_157421434672960.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 376,340 F1 · kind: Represents the non-discretionary sale of shares on behalf of the reporting person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.52 to $7.57, inclusive. The reporting person undertakes to provide The Rubicon Project, Inc., any security holder of The Rubicon Project, Inc., 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 ranges set forth in this footnote. Read SEC document |
| May 16, 2019 Filed May 17, 2019 22:05 UTC | MAGNITE, INC. RUBI · Entity 2049 | SaleCommon Stock | 9,101 | $6.19 | $56,335.19 |
DisclosureSEC source: 0001595974-19-000089 · wf-form4_155813069639344.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 381,377 F1 · kind: Represents the non-discretionary sale of shares on behalf of the reporting person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.06 to $6.34, inclusive. The reporting person undertakes to provide The Rubicon Project, Inc., any security holder of The Rubicon Project, Inc., 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 ranges set forth in this footnote. Read SEC document |
| February 20, 2019 Filed Feb 23, 2019 00:57 UTC | MAGNITE, INC. RUBI · Entity 2049 | GrantEmployee Stock Option (Right to Buy) · Derivative | 134,000 | $0.00 Strike: $4.92 | $0.00 |
DisclosureSEC source: 0001595974-19-000035 · wf-form4_155088340849237.xml · derivative · entry 2 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 134,000 Underlying: Common Stock · 134,000 shares Expires 2029-02-20 F2 · price: Granted as compensation for services. F3 · derivative.exercise_date: 25% of the stock options will vest on February 1, 2020 and the remaining option shares will become exercisable in 36 equal installments each calendar month thereafter. Read SEC document |
| February 20, 2019 Filed Feb 23, 2019 00:57 UTC | MAGNITE, INC. RUBI · Entity 2049 | GrantCommon Stock | 157,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001595974-19-000035 · wf-form4_155088340849237.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 390,478 F1 · shares: Represents restricted stock units that vest as follows: 49,062 on May 15, 2020, 19,625 on each November 15 and May 15 thereafter until November 15, 2022, and 9,813 on May 15, 2023. F2 · price: Granted as compensation for services. Read SEC document |
| January 15, 2019 Filed Jan 18, 2019 01:31 UTC | MAGNITE, INC. RUBI · Entity 2049 | Tax withholdingCommon Stock | 45,813 | $4.02 | $184,168.26 |
DisclosureSEC source: 0001595974-19-000013 · wf-form4_154777507997416.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 233,478 F1 · kind: Shares withheld by the issuer to cover the reporting person's tax liability incurred upon the vesting of the reporting person's restricted stock units. Read SEC document |
| November 15, 2018 Filed Nov 17, 2018 00:30 UTC | MAGNITE, INC. RUBI · Entity 2049 | Tax withholdingCommon Stock | 4,861 | $4.62 | $22,457.82 |
DisclosureSEC source: 0001595974-18-000124 · wf-form4_154241464183048.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 279,291 F1 · kind: Shares withheld by the issuer to cover the reporting person's tax liability incurred upon the vesting of the reporting person's restricted stock units. Read SEC document |
| March 15, 2018 Filed Mar 17, 2018 01:37 UTC | MAGNITE, INC. RUBI · Entity 2049 | GrantEmployee Stock Option (Right to Buy) · Derivative | 42,130 | $0.00 Strike: $1.97 | $0.00 |
DisclosureSEC source: 0001595974-18-000033 · wf-form4_152125061087539.xml · derivative · entry 2 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 42,130 Underlying: Common Stock · 42,130 shares Expires 2028-03-15 F2 · price: Granted as compensation for services. F3 · derivative.exercise_date: 25% of the stock options will vest on February 1, 2019 and the remaining option shares will become exercisable in 36 equal installments each calendar month thereafter. Read SEC document |
| March 15, 2018 Filed Mar 17, 2018 01:37 UTC | MAGNITE, INC. RUBI · Entity 2049 | GrantCommon Stock | 49,152 | $0.00 | $0.00 |
DisclosureSEC source: 0001595974-18-000033 · wf-form4_152125061087539.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 284,152 F1 · shares: Represents restricted stock units that vest as follows: 15,360 on May 15, 2019, 6,144 on each November 15 and May 15 thereafter until November 15, 2021, and 3,072 on May 15, 2022. F2 · price: Granted as compensation for services. Read SEC document |
| January 15, 2018 Filed Jan 17, 2018 23:09 UTC | MAGNITE, INC. RUBI · Entity 2049 | GrantCommon Stock | 200,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001595974-18-000010 · wf-form4_151623056052583.xml · nonDerivative · entry 1 Soroca Adam Lee · CIK 0001725125 · Head of Global Buyer Team 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 235,000 F1 · shares: Represents restricted stock units that vest as follows: 100,000 on January 15, 2019 and 100,000 on January 15, 2020. F2 · price: Granted as compensation for services. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.