Insider Profile · SEC Form 4 Activity · Trailing 90 Days
Barrett Michael G.
Over the trailing 90 days, Barrett Michael G. (Other at MAGNITE, INC.) traded $9.4M of stock (net selling $4.8M) across 2 companies, per 14 SEC Form 4 transactions.
- Role
- Other
- Window
- Trailing 90 days · 14 transactions · CIK 1100612
- Net activity
- −$4.8M ($2.3M bought · $7.1M sold)
By Company (Trailing 90 Days)
Transactions (14)
| Date | Symbol | Type | Shares | Value | Description |
|---|---|---|---|---|---|
| 2026-07-15 | MGNI | Sell | 38.6K | $0 | Exercise or conversion of derivative security |
| 2026-07-15 | MGNI | Buy | 38.6K | $224K | Exercise or conversion of derivative security |
| 2026-07-15 | MGNI | Sell | 38.6K | $785K | Open market or private sale |
| 2026-06-29 | MGNI | Sell | 75.0K | $1.5M | Open market or private sale |
| 2026-06-29 | MGNI | Buy | 75.0K | $435K | Exercise or conversion of derivative security |
| 2026-06-29 | MGNI | Sell | 75.0K | $0 | Exercise or conversion of derivative security |
| 2026-06-16 | MGNI | Sell | 100.0K | $0 | Exercise or conversion of derivative security |
| 2026-06-16 | MGNI | Sell | 100.0K | $1.8M | Open market or private sale |
| 2026-06-16 | MGNI | Buy | 100.0K | $580K | Exercise or conversion of derivative security |
| 2026-06-15 | MGNI | Sell | 178.6K | $0 | Exercise or conversion of derivative security |
| 2026-06-15 | MGNI | Buy | 178.6K | $1.0M | Exercise or conversion of derivative security |
| 2026-06-15 | MGNI | Sell | 178.6K | $3.0M | Open market or private sale |
| 2026-06-03 | OUT | Buy | 5.9K | $0 | Grant, award or other acquisition |
| 2026-05-15 | MGNI | Sell | 10.4K | $133K | Payment of exercise price or tax liability by delivering securities |
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
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