De Backer Marianne
- SEC CIK
- 0001797819
In the past year, 3 open-market sale filings worth $947.2K and no purchases.
Current role at each company
- VIR Vir Biotechnology, Inc.President and CEOas of Apr 30, 2026
- KRON Kronos Bio, Inc.Directoras of Jun 26, 2023
- ARWR Arrowhead Pharmaceuticals, Inc.Directoras of Jan 11, 2023
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $947.2K
- 3 filings
- Net
- −$947.2K
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists De Backer Marianne as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
VIR Vir Biotechnology, Inc.
President and CEO6 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Apr 7, 2026 (view filing) | Apr 6 | 1 day | De Backer MariannePresident and CEO | SSale | −72.6K | $9.16 | −$664.6K | −7.1%948.1K after | 10b5-1 |
| Feb 26, 2026 (view filing) | Feb 24 | 2 days | De Backer MarianneChief Executive Officer | SSale | −14.8K | $9.53 | −$140.7K | −1.4%1.02M after | 10b5-1 |
| Feb 24, 2026 (view filing) | Feb 23 | 1 day | De Backer MarianneChief Executive Officer | SSale | −19.0K | $7.45 | −$141.8K | −1.8%1.04M after | 10b5-1 |
| Apr 4, 2025 (view filing) | Apr 3 | 1 day | De Backer MarianneChief Executive Officer | SSale | −79.7K | $5.95 | −$474.3K | −9.4%769.5K after | 10b5-1 |
| Feb 25, 2025 (view filing) | Feb 24 | 1 day | De Backer MarianneChief Executive Officer | SSale | −16.1K | $9.45 | −$152.4K | −1.9%849.2K after | 10b5-1 |
| Apr 4, 2024 (view filing) | Apr 3 | 1 day | De Backer MarianneChief Executive Officer | SSale | −73.0K | $9.46 | −$690.5K | −9.7%678.5K after | 10b5-1 |
ARWR Arrowhead Pharmaceuticals, Inc.
Director1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jan 4, 2022 (view filing) | Jan 3 | 1 day | De Backer MarianneDirector | SSale | −4.50K | $64.71 | −$291.2K | −20.9%17.0K after | 3 lots |
KRON Kronos Bio, Inc.
Director2 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Dec 2, 2021 (view filing) | Dec 1 | 1 day | De Backer MarianneDirector | PPurchase | +1.15K | $11.57 | +$13.3K | +71.9%2.75K after | |
| Aug 24, 2021 (view filing) | Aug 20 | 4 days | De Backer MarianneDirector | PPurchase | +1.00K | $19.57 | +$19.6K | +166.7%1.60K after | 2 lots |