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 4 of 9
86 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2018-08-23 | REGN | Mixed | — | -$304.0K | EDGAR |
| 2018-01-03 | REGN | Grant (A) | — | $0 | EDGAR |
| 2017-10-05 | REGN | Mixed | — | -$445.8K | EDGAR |
| 2017-06-21 | REGN | Mixed | — | -$966.5K | EDGAR |
| 2017-06-14 | REGN | Mixed | — | -$593.3K | EDGAR |
| 2017-05-15 | REGN | Mixed | — | -$816.5K | EDGAR |
| 2017-03-30 | REGN | Mixed | — | -$222.2K | EDGAR |
| 2017-01-04 | REGN | Grant (A) | — | $0 | EDGAR |
| 2016-01-06 | REGN | Mixed | −1,000 | $0 | EDGAR |
| 2015-12-11 | REGN | Mixed | — | -$1.11M | 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.