David Day Net Worth
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David Day has an estimated net worth of at least $17.3 million*, as of Sept. 9, 2026. They own 467,031 shares of MGNI stock. They have sold 371,710 shares of MGNI stock since 2021, for an estimated $6.3 million.
David Day $MGNI SEC Form 4 Insider Trading
David Day has filed a total of 20 insider trades in $MGNI since 2021. Their most recent trade was a sale of 13,366 shares, made on Aug 18, 2025. Their largest trade was a sale of 39,000 shares, made on Feb 07, 2025. We estimate that they now own 467,031 shares of $MGNI, worth an estimated $11.0 million.
Insider Trading at $MGNI
There have been a total of 217 insider trades reported at $MGNI since 2021, with 7,500 shares purchased and 4.7 million shares sold. The most active insider traders in $MGNI stock have been Michael G. Barrett, David Buonasera, and Adam Lee Soroca. The most recent trade was a sale of 40,000 shares reported by Aaron Saltz (CHIEF LEGAL OFFICER), made on Sep 10, 2026.
History of Insider Stock Trades by David Day
| Company Ticker | Purchase / Sale | Shares | Date | Disclosed (EST) |
|---|---|---|---|---|
MGNI
|
Sale | 13,366 | Aug 18, 2025 | Aug. 20, 2025, 4:30 p.m. |
|
MGNI
|
Sale | 36,000 | Jun 26, 2025 | June 26, 2025, 5:21 p.m. |
|
MGNI
|
Sale | 35,000 | Jun 24, 2025 | June 26, 2025, 5:21 p.m. |
|
MGNI
|
Sale | 38,146 | Jun 18, 2025 | June 20, 2025, 4:26 p.m. |
|
MGNI
|
Sale | 39,000 | Feb 07, 2025 | Feb. 7, 2025, 7:43 p.m. |
|
MGNI
|
Sale | 13,245 | Feb 06, 2025 | Feb. 7, 2025, 7:43 p.m. |
|
MGNI
|
Sale | 13,345 | Jan 03, 2025 | Jan. 7, 2025, 6:27 p.m. |
|
MGNI
|
Sale | 13,500 | Dec 17, 2024 | Dec. 18, 2024, 6:15 p.m. |
|
MGNI
|
Sale | 11,644 | Dec 16, 2024 | Dec. 18, 2024, 6:15 p.m. |
|
MGNI
|
Sale | 19,077 | Jul 15, 2024 | July 17, 2024, 4:25 p.m. |
|
MGNI
|
Sale | 21,299 | Jun 12, 2024 | June 14, 2024, 4:30 p.m. |
|
MGNI
|
Sale | 20,732 | Jun 03, 2024 | June 5, 2024, 4:53 p.m. |
|
MGNI
|
Sale | 19,370 | May 16, 2024 | May 17, 2024, 5 p.m. |
|
MGNI
|
Sale | 9,078 | Aug 16, 2023 | Aug. 18, 2023, 4:22 p.m. |
|
MGNI
|
Sale | 9,584 | Jul 11, 2023 | July 13, 2023, 4:53 p.m. |
|
MGNI
|
Sale | 21,564 | Jun 29, 2023 | June 30, 2023, 5:03 p.m. |
|
MGNI
|
Sale | 1,213 | Jun 12, 2023 | June 14, 2023, 4:30 p.m. |
|
MGNI
|
Sale | 15,304 | Jun 13, 2023 | June 14, 2023, 4:30 p.m. |
|
MGNI
|
Sale | 16,066 | May 16, 2023 | May 18, 2023, 7:58 p.m. |
|
MGNI
|
Sale | 5,177 | Aug 16, 2021 | Aug. 17, 2021, 8 p.m. |
$MGNI Executives and Stock Owners with Insider Trades
-
Michael G. Barrett, CEO
-
David Buonasera, CHIEF TECHNOLOGY OFFICER
-
Adam Lee Soroca, CHIEF PRODUCT OFFICER
-
David Day, CHIEF FINANCIAL OFFICER
-
Aaron Saltz, CHIEF LEGAL OFFICER
-
Katie Seitz Evans, Chief Operating Officer
-
Sean Patrick Buckley, President, Revenue
-
Brian Gephart, CHIEF ACCOUNTING OFFICER
-
Sean Patrick Buckley, CHIEF REVENUE OFFICER
-
David Day, Chief Financial Officer
-
Adam Lee Soroca, Chief Product Officer
-
Katie Seitz Evans, President, Operations
-
Aaron Saltz, General Counsel
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Sean Patrick Buckley, See Remarks
-
David Buonasera, Chief Technology Officer
-
Katie Seitz Evans, See Remarks
-
Sean Patrick Buckley, Chief Revenue Officer
-
Aaron Saltz, Chief Legal Officer
-
Brian Gephart, Chief Accounting Officer
-
Joseph R Prusz, Chief Revenue Officer, DV+
-
Katie Seitz Evans, CHIEF OPERATING OFFICER
*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.