MICHAEL G. BARRETT
CIK 1100612 · CEO · last filed 2026-06-04
"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.
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Disclosed Exposure
$7.33M
Companies
5
Total Filings
66
Lifetime Open-Market Net
-$34.70M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| OUT | Director | — | $31.34 | — | $0 | 2 | 2026-06-04 |
| MGNI | CEO | 403,074 | $16.25 | $6.55M | -$32.48M | 45 | 2026-05-19 |
| RUBI | CEO | 1,662,302 | $0.47 | $777.3K | -$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 · Page 3 of 7
66 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-07-17 | MGNI | Sell (S) | −100,000 | -$1.50M | EDGAR |
| 2024-05-17 | MGNI | Mixed | −85,441 | -$778.8K | EDGAR |
| 2024-03-18 | MGNI | Sell (S) | −75,000 | -$840.8K | EDGAR |
| 2024-02-16 | MGNI | Tax (F) | −20,400 | -$198.7K | EDGAR |
| 2024-01-04 | MGNI | Grant (A) | +121,951 | $0 | EDGAR |
| 2023-11-17 | MGNI | Mixed | −86,362 | -$674.6K | EDGAR |
| 2023-08-18 | MGNI | Sell (S) | −35,869 | -$298.1K | EDGAR |
| 2023-08-17 | MGNI | Sell (S) | −75,000 | -$639.0K | EDGAR |
| 2023-07-13 | MGNI | Sell (S) | −25,000 | -$375.5K | EDGAR |
| 2023-06-02 | MGNI | Sell (S) | −75,000 | -$876.8K | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.