David Day insider trades: Magnite (MGNI) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where David reports to the SEC
Open-market buys and sales
43 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 18, 2025 | MGNI | ↓ Sell | 13,366 | $23.85 | $319K | Direct | Aug 20, 2025 (2d) |
| Jun 30, 2025 | MGNI | ↓ Sell | 21,682 | $22.00 | $477K | Direct | Jul 2, 2025 (2d) |
| Jun 26, 2025 | MGNI | ↓ Sell | 71,000 | $20.46 | $1.5M | Direct | Jun 26, 2025 (0d) |
| Jun 18, 2025 | MGNI | ↓ Sell | 38,146 | $18.95 | $723K | Direct | Jun 20, 2025 (2d) |
| Feb 7, 2025 | MGNI | ↓ Sell | 52,245 | $19.58 | $1.0M | Direct | Feb 7, 2025 (0d) |
| Jan 3, 2025 | MGNI | ↓ Sell | 13,345 | $17.00 | $227K | Direct | Jan 7, 2025 (4d) |
| Dec 17, 2024 | MGNI | ↓ Sell | 25,144 | $16.38 | $412K | Direct | Dec 18, 2024 (1d) |
| Jul 15, 2024 | MGNI | ↓ Sell | 19,077 | $15.00 | $286K | Direct | Jul 17, 2024 (2d) |
| Jun 12, 2024 | MGNI | ↓ Sell | 21,299 | $14.01 | $298K | Direct | Jun 14, 2024 (2d) |
| Jun 3, 2024 | MGNI | ↓ Sell | 20,732 | $13.00 | $270K | Direct | Jun 5, 2024 (2d) |
| May 16, 2024 | MGNI | ↓ Sell | 19,370 | $12.00 | $232K | Direct | May 17, 2024 (1d) |
| Aug 16, 2023 | MGNI | ↓ Sell | 9,078 | $8.31 | $75K | Direct | Aug 18, 2023 (2d) |
| Jul 11, 2023 | MGNI | ↓ Sell | 9,584 | $15.00 | $144K | Direct | Jul 13, 2023 (2d) |
| Jun 29, 2023 | MGNI | ↓ Sell | 21,564 | $14.00 | $302K | Direct | Jun 30, 2023 (1d) |
| Jun 13, 2023 | MGNI | ↓ Sell | 16,517 | $13.41 | $222K | Direct | Jun 14, 2023 (1d) |
| May 16, 2023 | MGNI | ↓ Sell | 16,066 | $10.88 | $175K | Direct | May 18, 2023 (2d) |
| Aug 16, 2021 | MGNI | ↓ Sell | 5,177 | $26.82 | $139K | Direct | Aug 18, 2021 (2d) |
| May 17, 2021 | MGNI | ↓ Sell | 35,569 | $25.98 | $924K | Direct | May 19, 2021 (2d) |
| Mar 25, 2021 | MGNI | ↓ Sell | 10,454 | $39.74 | $415K | Direct | Mar 26, 2021 (1d) |
| Mar 10, 2021 | MGNI | ↓ Sell | 20,125 | $46.99 | $946K | Direct | Mar 12, 2021 (2d) |
| Feb 16, 2021 | MGNI | ↓ Sell | 7,372 | $60.69 | $447K | Direct | Feb 18, 2021 (2d) |
| Nov 30, 2020 | MGNI | ↓ Sell | 18,033 | $19.44 | $350K | Direct | Dec 2, 2020 (2d) |
| Nov 23, 2020 | MGNI | ↓ Sell10b5-1 | 159,125 | $13.55 | $2.2M | Direct | Nov 23, 2020 (0d) |
| Nov 16, 2020 | MGNI | ↓ Sell | 16,256 | $11.06 | $180K | Direct | Nov 18, 2020 (2d) |
| Nov 9, 2020 | MGNI | ↓ Sell10b5-1 | 69,399 | $11.82 | $820K | Direct | Nov 9, 2020 (0d) |
| Oct 14, 2020 | MGNI | ↓ Sell10b5-1 | 24,853 | $9.18 | $228K | Direct | Oct 15, 2020 (1d) |
| Jun 8, 2020 | RUBI | ↓ Sell10b5-1 | 10,000 | $8.69 | $87K | Direct | Jun 10, 2020 (2d) |
| Jun 5, 2020 | RUBI | ↓ Sell10b5-1 | 29,018 | $7.90 | $229K | Direct | Jun 5, 2020 (0d) |
| May 20, 2020 | RUBI | ↓ Sell | 34,508 | $5.26 | $181K | Direct | May 20, 2020 (0d) |
| Jan 16, 2020 | RUBI | ↓ Sell | 24,547 | $10.41 | $256K | Direct | Jan 21, 2020 (5d) |
| Nov 18, 2019 | RUBI | ↓ Sell | 7,711 | $7.57 | $58K | Direct | Nov 19, 2019 (1d) |
| May 17, 2019 | RUBI | ↓ Sell | 25,256 | $6.22 | $157K | Direct | May 17, 2019 (0d) |
| Mar 18, 2019 | RUBI | ↓ Sell | 55,837 | $6.86 | $383K | Direct | Mar 19, 2019 (1d) |
| Nov 15, 2018 | RUBI | ↓ Sell | 53,798 | $4.70 | $253K | Direct | Nov 15, 2018 (0d) |
| Nov 15, 2016 | RUBI | ↓ Sell | 1,202 | $7.84 | $9K | Direct | Nov 17, 2016 (2d) |
| May 16, 2016 | RUBI | ↓ Sell | 10,819 | $14.22 | $154K | Direct | May 17, 2016 (1d) |
| Apr 20, 2016 | RUBI | ↓ Sell | 1,000 | $19.90 | $20K | Direct | Apr 22, 2016 (2d) |
| Apr 14, 2016 | RUBI | ↓ Sell | 19,000 | $19.90 | $378K | Direct | Apr 18, 2016 (4d) |
| Mar 15, 2016 | RUBI | ↓ Sell | 11,135 | $16.54 | $184K | Direct | Mar 15, 2016 (0d) |
| Nov 16, 2015 | RUBI | ↓ Sell | 2,400 | $14.74 | $35K | Direct | Nov 17, 2015 (1d) |
| May 15, 2015 | RUBI | ↓ Sell | 5,200 | $17.24 | $90K | Direct | May 19, 2015 (4d) |
| Feb 25, 2015 | RUBI | ↓ Sell | 15,000 | $19.90 | $299K | Direct | Feb 27, 2015 (2d) |
| Feb 19, 2013 | RLOC | ↓ Sell | 229 | $12.74 | $3K | Direct | Feb 20, 2013 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MGNI insiders
Open-market trades in the last 12 months
About David Day's insider trades
David Day is Chief Financial Officer at Magnite (MGNI). Since Feb 19, 2013, David has reported no open-market purchases and 43 sales worth $16.0M on SEC Form 4. There have been no open-market trades in the last 12 months.
5 sales (22% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include shares withheld for taxes (25 filings), grants and awards (19 filings), option exercises (15 filings), gifts (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MGNI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.