MAGNITE, INC.
MGNI US55955D1000
Magnite is one of the largest supply-side platform providers, or SSP, in online advertising. The firm was previously named The Rubicon Project (an online ad exchange) and became Magnite after merging with Telaria (an SSP focused mainly on streaming video providers) in 2020. The firm also purchased another of the leading SSPs within the CTV market, SpotX, in 2021 for $1.2 billion, cementing its long-term focus on grabbing market share in this area. The firm generates nearly 45% of its revenue from the programmatic sale of CTV ad inventory, 35% from mobile online sites and apps, and the remaining from websites accessed via computer.
Annual Performance 1
| 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| -37% | -41% | -6% | 73% | 0% |
Annual Insiders Turnover, USD 2
1 annual and historical performance metrics are recalculated on a daily basis;
2 represents the total value of insider transactions (both buying and selling);
Insider Activity
| Person | Price | Shares | Total | Published | Completed |
|---|---|---|---|---|---|
| Saltz Aaron CLO |
24.50 USD |
8,522 Sold |
208,789 USD |
19/09/2025 | 19/09/2025 |
| Caine Paul O |
25.00 USD |
7,500 Sold |
187,500 USD |
19/09/2025 | 19/09/2025 |
| Saltz Aaron CLO |
23.94 USD |
6,180 Sold |
147,949 USD |
15/09/2025 | 15/09/2025 |
| Caine Paul O |
23.50 USD |
3,811 Sold |
89,559 USD |
10/09/2025 | 10/09/2025 |
| Caine Paul O |
23.91 USD |
1,189 Sold |
28,429 USD |
10/09/2025 | 10/09/2025 |
| Buckley Sean Patrick PR |
24.61 USD |
20,000 Sold |
492,200 USD |
08/09/2025 | 09/09/2025 |
| Buckley Sean Patrick PR |
25.56 USD |
20,000 Sold |
511,200 USD |
08/09/2025 | 08/09/2025 |
| Gephart Brian CCO |
24.71 USD |
27,671 Sold |
683,750 USD |
04/09/2025 | 04/09/2025 |
| Buonasera David CTO |
25.37 USD |
2,950 Sold |
74,842 USD |
03/09/2025 | 03/09/2025 |
| Soroca Adam Lee SR OFF |
24.97 USD |
15,717 Sold |
392,453 USD |
02/09/2025 | 02/09/2025 |