Charles Greg Guyer
CIK 1811096 · EVP, Chief Technical Officer · last filed 2026-03-19
"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
$5.37M
Companies
1
Total Filings
26
Lifetime Open-Market Net
-$2.95M
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 |
|---|---|---|---|---|---|---|---|
| BMRN | EVP, Chief Technical Officer | 84,140 | $63.81 | $5.37M | -$2.95M | 22 | 2026-03-19 |
Recent Filings · Page 2 of 3
26 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-11-14 | BMRN | Mixed | −5,223 | -$347.2K | EDGAR |
| 2024-11-12 | BMRN | Notice (144) | −5,278 | -$350.3K | EDGAR |
| 2024-05-07 | BMRN | Mixed | −4,195 | -$349.2K | EDGAR |
| 2024-03-19 | BMRN | Mixed | −9,874 | -$1.71M | EDGAR |
| 2024-02-29 | BMRN | Grant (A) | +36,187 | $0 | EDGAR |
| 2023-12-05 | BMRN | Grant (A) | +11,973 | $9.2K | EDGAR |
| 2023-08-10 | BMRN | Sell (S) | −5,360 | -$500.1K | EDGAR |
| 2023-08-09 | BMRN | Notice (144) | −5,360 | -$500.1K | EDGAR |
| 2023-05-08 | BMRN | Mixed | −4,063 | -$394.6K | EDGAR |
| 2023-03-17 | BMRN | Mixed | +7,044 | -$162.8K | EDGAR |
Form 4 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.
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.
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.