Paul Caine insider trades: Magnite (MGNI) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Paul reports to the SEC





Open-market buys and sales
19 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 12, 2026 | MGNI | ↓ Sell | 12,500 | $25.29 | $316K | Direct | Oct 14, 2026 (2d) |
| Sep 17, 2026 | MGNI | ↓ Sell | 7,500 | $26.50 | $199K | Direct | Sep 18, 2026 (1d) |
| Sep 10, 2026 | MGNI | ↓ Sell | 5,000 | $23.53 | $118K | Direct | Sep 11, 2026 (1d) |
| Aug 10, 2026 | MGNI | ↓ Sell | 5,000 | $24.35 | $122K | Direct | Aug 12, 2026 (2d) |
| Jul 10, 2026 | MGNI | ↓ Sell | 5,000 | $20.64 | $103K | Direct | Jul 14, 2026 (4d) |
| Oct 24, 2025 | MGNI | ↓ Sell | 5,000 | $20.00 | $100K | Direct | Oct 28, 2025 (4d) |
| Sep 19, 2025 | MGNI | ↓ Sell | 7,500 | $25.00 | $188K | Direct | Sep 19, 2025 (0d) |
| Sep 10, 2025 | MGNI | ↓ Sell | 5,000 | $23.60 | $118K | Direct | Sep 12, 2025 (2d) |
| Aug 25, 2025 | MGNI | ↓ Sell | 7,500 | $25.00 | $188K | Direct | Aug 26, 2025 (1d) |
| Aug 11, 2025 | MGNI | ↓ Sell | 5,000 | $22.29 | $111K | Direct | Aug 13, 2025 (2d) |
| Jul 10, 2025 | MGNI | ↓ Sell | 5,000 | $23.53 | $118K | Direct | Jul 11, 2025 (1d) |
| Jun 24, 2025 | MGNI | ↓ Sell | 5,000 | $20.00 | $100K | Direct | Jun 26, 2025 (2d) |
| Feb 10, 2025 | MGNI | ↓ Sell | 5,000 | $20.35 | $102K | Direct | Feb 12, 2025 (2d) |
| Jul 12, 2021 | MGNI | ↓ Sell | 15,000 | $31.45 | $472K | Direct | Jul 13, 2021 (1d) |
| Jun 10, 2021 | MGNI | ↓ Sell | 15,000 | $32.75 | $491K | Direct | Jun 11, 2021 (1d) |
| May 10, 2021 | MGNI | ↓ Sell | 15,000 | $30.81 | $462K | Direct | May 12, 2021 (2d) |
| Apr 5, 2021 | MGNI | ↓ Sell | 20,000 | $40.12 | $802K | Direct | Apr 7, 2021 (2d) |
| Oct 23, 2018 | TLRA | ↑ Buy | 4,000 | $2.77 | $11K | Direct | Oct 23, 2018 (0d) |
| Oct 16, 2018 | TLRA | ↑ Buy | 5,000 | $2.77 | $14K | Direct | Oct 16, 2018 (0d) |
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 Paul Caine's insider trades
Paul Caine is a director at Magnite (MGNI). Since Oct 16, 2018, Paul has reported 2 open-market purchases worth $25K and 17 sales worth $4.1M on SEC Form 4. In the last 12 months: 5 sales ($857K).
Their filings also include grants and awards (16 filings), option exercises (6 filings), shares withheld for taxes (2 filings), shares returned to the company (1 filing). 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.