Greedy Insider
MAGNITE, INC. (MGNI) Insider Trades and Scores
MAGNITE, INC. (MGNI) insider trades: since Dec 17, 2025, Greedy Insider recorded 0 open-market buys and 76 sales on Form 4 from 14 insiders. The strongest recent filing scored 94 (Strong).
Who bought and who sold
Across the last 76 scoreable Form 4 transactions in MGNI, 0 were open-market purchases and 76 were sales. The table lists the most recent filings with each one's Greediness Score, so the structurally unusual trades are easy to spot first.
| Insider | Role | Type | Shares | Date | Score | ||
|---|---|---|---|---|---|---|---|
| Caine Paul | Director | Sell | 12500.0 | 316125.0 | 2026-10-12 | 71 | View |
| Caine Paul | Director | Sell | 7500.0 | 198750.0 | 2026-09-17 | 81 | View |
| Knopper Douglas S | Director | Sell | 37337.0 | 981216.4 | 2026-09-17 | 82 | View |
| Buonasera David | CHIEF TECHNOLOGY OFFICER | Sell | 1165.0 | 27960.0 | 2026-09-14 | 75 | View |
| Spillane Robert F | Director | Sell | 10363.0 | 246224.88 | 2026-09-14 | 81 | View |
| Evans Katie Seitz | See Remarks | Sell | 13997.0 | 335928.0 | 2026-09-11 | 72 | View |
| Caine Paul | Director | Sell | 5000.0 | 117650.0 | 2026-09-10 | 77 | View |
| Saltz Aaron | CHIEF LEGAL OFFICER | Sell | 40000.0 | 936400.0 | 2026-09-10 | 93 | View |
| Evans Katie Seitz | See Remarks | Sell | 11100.0 | 260406.0 | 2026-09-09 | 67 | View |
| Evans Katie Seitz | See Remarks | Sell | 32285.0 | 762894.56 | 2026-09-08 | 74 | View |
The strongest recent filing
BARRETT MICHAEL G. (CEO) sold 293,968 shares of MAGNITE, INC. on Aug 6, 2026, a filing that scored 94 (Strong). It scored Strong because a senior insider was trading and several insiders moved the same way within a week. The score describes the filing, not future returns. This is not investment advice.
Cluster activity
A cluster buy is present: 8 insiders (Lam Rachel, Gephart Brian, Caine Paul, Buckley Sean Patrick) traded MGNI the same direction within a 7-day window. Shared conviction is a stronger structural signal than a lone trade.
How this compares with MAGNITE, INC.'s own history
Open-market buys make up 0% of the 76 scoreable MGNI transactions on record between Dec 17, 2025 and Oct 12, 2026. Comparing a filing with the company's own buy/sell mix is how you tell a routine disposal from an unusual accumulation.
Methodology and sources
Scores come from six published, user-adjustable factors (insider role, cluster activity, trade size versus the insider's own history, position impact, filing urgency, and direct versus indirect ownership). The score describes the filing, not future returns. This is not investment advice.
Key facts
- Scoreable Form 4 transactions on record: 76
- Open-market buys: 0
- Sales: 76
- Distinct insiders: 14
- Strongest recent Greediness Score: 94 (Strong)
Primary sources
Related
- Strongest filing
- MGNI in the live feed
- How the Greediness Score works
- What is a cluster buy?
- Form 4 transaction codes
The score describes the filing, not future returns. This is not investment advice.