MICHAEL G. BARRETT
CIK 1100612 · CEO · last filed 2026-07-17
MICHAEL G. BARRETT is a CEO who has filed 89 SEC Form 4 insider transactions across 5 companies since 2013. The most recent filing, for MGNI, was dated Jul 17, 2026. Across all open-market trades the lifetime net is −$41.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $7.9M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$7.94M
5
89
-$41.66M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MGNI | CEO | 403,074 | $19.70 | $7.94M | -$39.44M | 48 | 2026-07-17 |
| OUT | Director | — | $32.48 | — | $0 | 2 | 2026-06-04 |
| RUBI | CEO | 28 | $2.16 | $60 | -$2.22M | 13 | 2020-06-05 |
| Millennial Media Inc. (MM) Delisted | President and CEO | 0 | — | — | $0 | 4 | 2015-10-23 |
| Telaria, Inc. (TRMR) Delisted | Director | — | $5.02 | — | $0 | 1 | 2013-10-01 |
Recent Filings
89 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-17 | MGNI | Mixed | — | -$561.6K | EDGAR |
| 2026-07-15 | MGNI | Notice (144) | −38,596 | -$785.5K | EDGAR |
| 2026-07-01 | MGNI | Mixed | — | -$1.03M | EDGAR |
| 2026-06-29 | MGNI | Notice (144) | −75,000 | -$1.46M | EDGAR |
| 2026-06-17 | MGNI | Mixed | — | -$3.10M | EDGAR |
| 2026-06-16 | MGNI | Notice (144) | −100,000 | -$1.75M | EDGAR |
| 2026-06-15 | MGNI | Notice (144) | −178,596 | -$2.96M | EDGAR |
| 2026-06-04 | OUT | Grant (A) | — | $0 | EDGAR |
| 2026-05-19 | MGNI | Tax (F) | −10,404 | -$133.4K | EDGAR |
| 2026-02-18 | MGNI | Tax (F) | −23,549 | -$275.5K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.