MICHAEL S BROWN
CIK 1174475 · last filed 2026-01-06
"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
$4.81M
Companies
2
Total Filings
86
Lifetime Open-Market Net
-$73.07M
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.
Recent Filings · Page 8 of 9
86 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2010-10-08 | REGN | Mixed | — | -$49.4K | EDGAR |
| 2010-05-20 | REGN | Mixed | — | -$14.5K | EDGAR |
| 2010-04-26 | PFE | Grant (A) | — | $0 | EDGAR |
| 2010-04-12 | REGN | Conv (C) | +29,662 | $0 | EDGAR |
| 2010-01-06 | REGN | Mixed | −12,000 | $0 | EDGAR |
| 2009-04-24 | PFE | Grant (A) | — | $0 | EDGAR |
| 2009-02-24 | REGN | Exer (M) | +5,000 | $38.3K | EDGAR |
| 2009-01-05 | REGN | Grant (A) | — | $0 | EDGAR |
| 2008-09-10 | REGN | Exer (M) | +5,000 | $38.3K | EDGAR |
| 2008-04-25 | PFE | Grant (A) | — | $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.