🕵️ Biontech SE ($BNTX)
SEC insider & ownership activity, last 12 months · CIK 1776985 · every row links its SEC filing
Over the last 12 months insiders sold $5.5M with no open-market buying against it. Poetting Sierk sold $5.5M through a 10b5-1 trading plan in 1 lots (Apr). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 1 seller, $5.5M (1 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Poetting Sierk | 0 | – | 1 | $5.5M | Apr 22, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Athos Kg | 40.2% | 13G | May 14, 2026 | filing ↗ | |
| At Impf Gmbh | 40.2% | 13G | May 14, 2026 | filing ↗ | |
| Thomas Maier | 40.2% | 13G | May 14, 2026 | filing ↗ | |
| PROF. UGUR Sahin, M.D. | 17.6% | 13G | May 13, 2025 | filing ↗ | |
| Ugur Sahin | 15.8% | 13G | May 15, 2026 | filing ↗ | |
| Medine Gmbh | 15.5% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Medine Gmbh | $80.4M | May 13, 2026 | filing ↗ |
| Poetting Sierk | $12.6M | Mar 11, 2026 | filing ↗ |
| Medine Gmbh | $93.9M | Feb 12, 2026 | filing ↗ |
| Tureci Ozlem | $12.7M | Nov 28, 2025 | filing ↗ |
| Medine Gmbh | $124.4M | Nov 13, 2025 | filing ↗ |
| Jeggle Helmut Wolfgang | $15.5M | Nov 5, 2025 | filing ↗ |
| Athos Kg | $56.2M | Sep 5, 2025 | filing ↗ |
| Medine Gmbh | $200.0M | Aug 15, 2025 | filing ↗ |
| Tureci Ozlem | $20.8M | Aug 15, 2025 | filing ↗ |
Material events (8-K)
No 8-K filings in the last 12 months.