William C Fallon
CIK 1334233 · CEO & President · last filed 2026-03-05
"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
$17.44M
Companies
1
Total Filings
54
Lifetime Open-Market Net
$2.24M
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 |
|---|---|---|---|---|---|---|---|
| MBI | CEO & President | 2,826,660 | $6.17 | $17.44M | $2.24M | 54 | 2026-03-05 |
Recent Filings · Page 3 of 6
54 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-03-05 | MBI | Tax (F) | −14,505 | -$103.0K | EDGAR |
| 2020-11-19 | MBI | Buy (P) | +100,000 | $617.0K | EDGAR |
| 2020-03-10 | MBI | Tax (F) | −7,029 | -$57.1K | EDGAR |
| 2020-03-05 | MBI | Grant (A) | +242,162 | $0 | EDGAR |
| 2020-03-05 | MBI | Tax (F) | −14,505 | -$115.0K | EDGAR |
| 2020-03-02 | MBI | Disp (D) | −28,706 | $0 | EDGAR |
| 2020-01-03 | MBI | Disp (D) | −58,220 | $0 | EDGAR |
| 2019-03-07 | MBI | Grant (A) | +126,720 | $0 | EDGAR |
| 2019-03-05 | MBI | Tax (F) | −14,505 | -$153.9K | EDGAR |
| 2018-11-13 | MBI | Grant (A) | +1,000,000 | $0 | 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.