Backer Marianne De insider trades: Vir Biotechnology (VIR) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Backer reports to the SEC
Open-market buys and sales
12 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 6, 2026 | VIR | ↓ Sell | 72,559 | $9.16 | $664K | Direct | Apr 7, 2026 (1d) |
| Feb 23, 2026 | VIR | ↓ Sell | 19,039 | $7.45 | $142K | Direct | Feb 24, 2026 (1d) |
| Apr 3, 2025 | VIR | ↓ Sell | 79,712 | $5.95 | $474K | Direct | Apr 4, 2025 (1d) |
| Feb 24, 2025 | VIR | ↓ Sell | 16,122 | $9.45 | $152K | Direct | Feb 25, 2025 (1d) |
| Apr 3, 2024 | VIR | ↓ Sell | 72,995 | $9.46 | $690K | Direct | Apr 4, 2024 (1d) |
| Jan 3, 2022 | ARWR | ↓ Sell | 4,500 | $64.71 | $291K | Direct | Jan 4, 2022 (1d) |
| Dec 1, 2021 | KRON | ↑ Buy | 1,150 | $11.57 | $13K | Direct | Dec 2, 2021 (1d) |
| Aug 20, 2021 | KRON | ↑ Buy | 1,000 | $19.57 | $20K | Direct | Aug 24, 2021 (4d) |
| Jun 24, 2021 | ARWR | ↓ Sell | 5,000 | $89.85 | $449K | Direct | Jun 25, 2021 (1d) |
| May 28, 2021 | KRON | ↑ Buy | 600 | $25.01 | $15K | Direct | Jun 1, 2021 (4d) |
| Oct 8, 2020 | ARWR | ↑ Buy | 1,000 | $50.47 | $50K | Direct | Oct 26, 2020 (18d) |
| Jun 15, 2020 | ARWR | ↑ Buy | 4,000 | $33.56 | $134K | Direct | Jun 24, 2020 (9d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other VIR insiders
Open-market trades in the last 12 months
About Backer Marianne De's insider trades
Backer Marianne De is President and CEO at Vir Biotechnology (VIR). Since Jun 15, 2020, Backer has reported 5 open-market purchases worth $233K and 7 sales worth $2.9M on SEC Form 4. In the last 12 months: 2 sales ($806K).
Their filings also include grants and awards (12 filings), other transactions (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every VIR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.