Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MAGNITE, INC.MGNI · Entity 2049 | See Remarks | September 11, 2026 | September 11, 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 September 11, 2026 · Filed September 11, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 441,800 |
Reported balance
After 2026-09-11 transaction · row 1
1 source rowRow 1 · 2026-09-11 · Sale · Disposed 13,997 · Balance 441,800 F1: The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 8, 2026. |
Filing footnotes · ownership attribution and instrument terms
F1: The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 8, 2026.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Telaria, Inc.
Report date April 01, 2020 · Filed April 03, 2020
Section 16 reporting ended · disclosed 2020-04-03. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 1
1 source rowRow 1 · 2020-04-01 · Disposition to issuer · Disposed 215,407 · Balance 0 F1: On April 1, 2020, the effective date (the "Effective Date") of the merger between the Issuer and The Rubicon Project, Inc. ("Rubicon"), each share of Issuer common stock was exchanged for 1.082 shares of Rubicon common stock. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.11 · Expires 2020-06-24 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2020-04-01 · Disposition to issuer · Disposed 488 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $4.28 · Expires 2021-02-03 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2020-04-01 · Disposition to issuer · Disposed 1,333 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $4.28 · Expires 2021-06-08 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · 2020-04-01 · Disposition to issuer · Disposed 1,333 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $5.01 · Expires 2022-07-26 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 5
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 5 · 2020-04-01 · Disposition to issuer · Disposed 2,666 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $5.90 · Expires 2023-03-05 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 7
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 7 · 2020-04-01 · Disposition to issuer · Disposed 6,666 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $8.37 · Expires 2023-07-31 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 8
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 8 · 2020-04-01 · Disposition to issuer · Disposed 5,000 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $4.27 · Expires 2023-12-05 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 9
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 9 · 2020-04-01 · Disposition to issuer · Disposed 21,231 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $3.90 · Expires 2028-02-27 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 10
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 10 · 2020-04-01 · Disposition to issuer · Disposed 51,883 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $5.58 · Expires 2029-02-28 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 11
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 11 · 2020-04-01 · Disposition to issuer · Disposed 31,004 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Stock Opton (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $5.01 · Expires 2022-07-19 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 6
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 6 · 2020-04-01 · Disposition to issuer · Disposed 2,666 · Balance 0 F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent. |
| Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 12
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 12 · 2020-04-01 · Disposition to issuer · Disposed 12,500 · Balance 0 F3: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. F4: On the Effective Date, pursuant to the merger agreement, restricted stock units were assumed by Rubicon, with the same vesting and other terms, at an exchange ratio of 1.082 Rubicon restricted stock units for each Issuer restricted stock unit reported herein, rounded down to the nearest whole share. |
| Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 13
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 13 · 2020-04-01 · Disposition to issuer · Disposed 31,250 · Balance 0 F3: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. F4: On the Effective Date, pursuant to the merger agreement, restricted stock units were assumed by Rubicon, with the same vesting and other terms, at an exchange ratio of 1.082 Rubicon restricted stock units for each Issuer restricted stock unit reported herein, rounded down to the nearest whole share. |
| Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 14
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 14 · 2020-04-01 · Disposition to issuer · Disposed 12,820 · Balance 0 F3: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. F4: On the Effective Date, pursuant to the merger agreement, restricted stock units were assumed by Rubicon, with the same vesting and other terms, at an exchange ratio of 1.082 Rubicon restricted stock units for each Issuer restricted stock unit reported herein, rounded down to the nearest whole share. |
| Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 | Direct | 0 |
Reported balance
After 2020-04-01 transaction · row 15
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 15 · 2020-04-01 · Disposition to issuer · Disposed 34,722 · Balance 0 F3: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. F4: On the Effective Date, pursuant to the merger agreement, restricted stock units were assumed by Rubicon, with the same vesting and other terms, at an exchange ratio of 1.082 Rubicon restricted stock units for each Issuer restricted stock unit reported herein, rounded down to the nearest whole share. |
Filing footnotes · ownership attribution and instrument terms
F1: On April 1, 2020, the effective date (the "Effective Date") of the merger between the Issuer and The Rubicon Project, Inc. ("Rubicon"), each share of Issuer common stock was exchanged for 1.082 shares of Rubicon common stock.
F2: These options were assumed by Rubicon pursuant to the merger agreement on the Effective Date with the same vesting and other terms at the rate of 1.082 Rubicon options for each Issuer option, rounded down to the nearest whole share, and with an exercise price per share of each Rubicon option equal to the exercise price herein divided by 1.082, rounded up to the nearest cent.
F3: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
F4: On the Effective Date, pursuant to the merger agreement, restricted stock units were assumed by Rubicon, with the same vesting and other terms, at an exchange ratio of 1.082 Rubicon restricted stock units for each Issuer restricted stock unit reported herein, rounded down to the nearest whole share.
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 |
|---|---|---|---|---|---|---|
| April 29, 2017 Filed May 15, 2017 17:34 UTC | Telaria, Inc. TRMR · Entity 150026 | Exercise / conversionRestricted Stock Unit · Derivative | 12,500 | Not disclosed Strike: $0.00 | Not disclosed |
DisclosureSEC source: 0001209191-17-032396 · doc4.xml · derivative · entry 3 Evans Katie Seitz · CIK 0001700262 · Chief Operating Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 37,500 Underlying: Common Stock · 12,500 shares Expires not disclosed 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 · security: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. F1 · price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. F2 · derivative.exercise_date: Grant to the reporting person of a restricted stock unit under the 2013 Plan. 25% of the total shares underlying the restricted stock unit grant vested on April 29, 2017; the remaining shares shall vest on each of April 29, 2018, April 29, 2019 and April 29, 2020, subject to continued service to the issuer through each vesting date. This restricted stock unit grant is subject to accelerated vesting in the event that the recipient is subject to a qualified termination within a specified period of time prior to or following the closing of a change in control transaction. F2 · derivative.expiration_date: Grant to the reporting person of a restricted stock unit under the 2013 Plan. 25% of the total shares underlying the restricted stock unit grant vested on April 29, 2017; the remaining shares shall vest on each of April 29, 2018, April 29, 2019 and April 29, 2020, subject to continued service to the issuer through each vesting date. This restricted stock unit grant is subject to accelerated vesting in the event that the recipient is subject to a qualified termination within a specified period of time prior to or following the closing of a change in control transaction. Read SEC document |
| April 29, 2017 Filed May 15, 2017 17:34 UTC | Telaria, Inc. TRMR · Entity 150026 | Tax withholdingCommon Stock | 4,621 | $2.26 | $10,443.46 |
DisclosureSEC source: 0001209191-17-032396 · doc4.xml · nonDerivative · entry 2 Evans Katie Seitz · CIK 0001700262 · Chief Operating Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 45,331 Read SEC document |
| April 29, 2017 Filed May 15, 2017 17:34 UTC | Telaria, Inc. TRMR · Entity 150026 | Exercise / conversionCommon Stock | 12,500 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001209191-17-032396 · doc4.xml · nonDerivative · entry 1 Evans Katie Seitz · CIK 0001700262 · Chief Operating Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 49,952 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 · price: Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. 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.