BB BIOTECH AG
CIK 924223 · last filed 2025-03-20
BB BIOTECH AG is a corporate insider who has filed 121 SEC Form 4 insider transactions across 7 companies since 2013. The most recent filing shows the insider sold $24.0M of BDTX on Mar 20, 2025. Across all open-market trades the lifetime net is +$513.7M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $56.4M across reported positions. The firm reports its address in Schaffhausen. 78 SEC filings were submitted jointly with GROWTH N V BIOTECH.
"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.
$56.36M
7
121
$513.75M
Filer Profile
SCHAFFHAUSEN 8200
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BDTX | 10%+ Owner | 7,517,839 | $2.08 | $15.60M | $13.50M | 10 | 2025-03-20 |
| ESSA Pharma Inc. (EPIX) Delisted | 10%+ Owner | 3,879,583 | $0.20 | $780.6K | $1.89M | 6 | 2024-11-05 |
| Molecular Templates, Inc. (MTEM) Delisted | 10%+ Owner | 1,279,820 | $0.00 | $128 | $95.56M | 18 | 2024-04-04 |
| MGNX | 10%+ Owner | 9,929,963 | $4.11 | $40.76M | $66.52M | 10 | 2023-10-04 |
| Radius Health, Inc. (RDUS) Delisted | 10%+ Owner | 8,733,538 | $30.00 | $262.01M | $250.58M | 58 | 2022-05-20 |
| Esperion Therapeutics, Inc. (ESPR) Delisted | 10%+ Owner | 4,477,964 | $3.18 | $14.24M | $84.78M | 16 | 2021-05-26 |
| Cidara Therapeutics, Inc. (CDTX) Delisted | 10%+ Owner | 114,764 | $221.38 | $25.41M | $907.9K | 1 | 2017-11-16 |
Recent Filings
121 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-03-20 | BDTX | Sell (S) | −11,568,584 | -$24.00M | EDGAR |
| 2024-11-05 | ESSA Pharma Inc. (EPIX) Delisted | Sell (S) | −15,759,166 | -$24.04M | EDGAR |
| 2024-04-04 | Molecular Templates, Inc. (MTEM) Delisted | Buy (P) | +500,000 | $1.18M | EDGAR |
| 2023-10-04 | MGNX | Buy (P) | +300,000 | $1.34M | EDGAR |
| 2023-09-11 | MGNX | Buy (P) | +400,000 | $2.11M | EDGAR |
| 2023-07-03 | BDTX | Buy (P) | +2,000,000 | $10.00M | EDGAR |
| 2023-06-29 | BDTX | Buy (P) | +3,480,000 | $19.11M | EDGAR |
| 2023-02-16 | MGNX | Buy (P) | +1,000,000 | $5.07M | EDGAR |
| 2022-11-25 | MGNX | Buy (P) | +600,000 | $3.58M | EDGAR |
| 2022-11-02 | BDTX | Buy (P) | +199,602 | $449.8K | EDGAR |
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.