As of the latest Form 4 filed Jun 4, 2026.
What Biomarin Pharmaceutical Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 39 most recent filings for BMRN.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-04 | 2026-06-02 | Countouriotis Athena Director | AAward | +7.49K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-02 | Walbert Timothy P Director | AAward | +7.49K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-02 | Ho Maykin Director | AAward | +7.49K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-02 | HOMBACH ROBERT J. Director | AAward | +7.49K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-02 | Enyedy Mark J Director | AAward | +7.49K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-02 | Dere Willard H Director | AAward | +7.49K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-02 | CLARK IAN T Director | AAward | +7.49K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-02 | Bodem Barbara W. Director | AAward | +7.49K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-02 | ANDERSON ELIZABETH M Director | AAward | +7.49K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-21 | 2026-05-20 | Hubbard Cristin EVP, Chief Commercial Officer | FTax | −2.32K | $50.20 | $116K | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | Friberg Gregory R EVP, Chief R&D Officer | SSale | −3.28K | $53.85 | $177K | No | Form 4 ↗ |
| 2026-03-19 | 2026-03-18 | Davis George Eric EVP, Chief Legal Officer | FTax | −1.27K | $56.05 | $71.4K | No | Form 4 ↗ |
| 2026-03-19 | 2026-03-17 | Guyer Charles Greg EVP, Chief Technical Officer | FTax | −1.69K | $56.05 | $94.9K | No | Form 4 ↗ |
| 2026-03-19 | 2026-03-17 | Mueller Brian EVP, Chief Financial Officer | FTax | −2.12K | $56.05 | $119K | No | Form 4 ↗ |
| 2026-03-19 | 2026-03-17 | Hardy Alexander Chief Executive Officer | FTax | −4.25K | $56.05 | $238K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-17 | Hubbard Cristin EVP, Chief Commercial Officer | FTax | −1.25K | $56.05 | $69.8K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-17 | Friberg Gregory R EVP, Chief R&D Officer | FTax | −1.63K | $56.05 | $91.3K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Hubbard Cristin EVP, Chief Commercial Officer | AAward | +15.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Friberg Gregory R EVP, Chief R&D Officer | AAward | +19.1K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-16 | Guyer Charles Greg EVP, Chief Technical Officer | AAward | +15.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-16 | Davis George Eric EVP, Chief Legal Officer | AAward | +14.6K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-16 | Davis George Eric, EVP, Chief Legal Officer | FTax | −7.18K | $58.51 | $420K | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-16 | Mueller Brian EVP, Chief Financial Officer | AAward | +18.7K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-16 | Hardy Alexander Chief Executive Officer | AAward | +62.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Guyer Charles Greg EVP, Chief Technical Officer | FTax | −9.11K | $58.51 | $533K | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Mueller Brian EVP, Chief Financial Officer | FTax | −9.95K | $58.51 | $582K | No | Form 4 ↗ |
| 2026-03-17 | 2026-03-13 | Hardy Alexander Chief Executive Officer | FTax | −2.94K | $58.51 | $172K | No | Form 4 ↗ |
| 2026-03-12 | 2026-03-11 | Guyer Charles Greg EVP, Chief Technical Officer | SSale | −16.5K | $60.46 | $997K | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-26 | Friberg Gregory R EVP, Chief R&D Officer | SSale | −6.33K | $60.38 | $382K | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-26 | Davis George Eric EVP, Chief Legal Officer | SSale | −26.1K | $61.36 | $1.60M | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Guyer Charles Greg EVP, Chief Technical Officer | AAward | +2.37K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Guyer Charles Greg, EVP, Chief Technical Officer | AAward | +6.67K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Guyer Charles Greg, EVP, Chief Technical Officer | AAward | +6.18K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Davis George Eric EVP, Chief Legal Officer | AAward | +2.37K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Davis George Eric, EVP, Chief Legal Officer | AAward | +6.67K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Davis George Eric, EVP, Chief Legal Officer | AAward | +6.18K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Mueller Brian EVP, Chief Financial Officer | AAward | +2.57K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Mueller Brian, EVP, Chief Financial Officer | AAward | +7.23K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Mueller Brian, EVP, Chief Financial Officer | AAward | +6.68K | $0.00 | $0.00 | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also BMRN’s full analysis or the market-wide insider trading feed. The tabs above jump to BMRN’s other SEC data.
Source: SEC Form 4 filings for BMRN, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.