Greenman William Mariner, President and CEO of Cerus Corp ($CERS), sold shares on the open market twice in the last year, totaling about $335,000. His most recent sale occurred on March 6, 2026. These sales rank 7,335th among nearly 12,000 individual insiders, well below the average of 8.6 million per seller and 6.4 transactions. He made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 12, 2026 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 447757 | $1.66 | 4,998,493.0000 | 192,087,501 | 8.22% | 0.23% |
| March 6, 2026 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 78187 | $2.01 | 5,446,250.0000 | 192,087,501 | 1.42% | 0.04% |
| March 5, 2026 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | A | Common Stock | 193270 | $0.00 | 5,524,437.0000 | 192,087,501 | 3.63% | 0.10% |
| March 2, 2026 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | A | Common Stock | 1200000 | $0.00 | 5,331,167.0000 | 192,087,501 | 29.05% | 0.62% |
| March 14, 2025 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 122827 | $1.45 | 4,115,845.0000 | 185,789,815 | 2.90% | 0.07% |
| March 13, 2025 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 71086 | $1.45 | 4,238,672.0000 | 185,789,815 | 1.65% | 0.04% |
| March 6, 2025 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | A | Common Stock | 975000 | $0.00 | 4,205,000.0000 | 185,789,815 | 30.19% | 0.52% |
| March 6, 2025 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | A | Common Stock | 165742 | $0.00 | 4,370,742.0000 | 185,789,815 | 3.94% | 0.09% |
| March 7, 2025 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 60984 | $1.50 | 4,309,758.0000 | 185,789,815 | 1.40% | 0.03% |
| March 3, 2025 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | M | Restricted Stock Unit | 57637 | $0.00 | 0.0000 | 185,789,815 | 100.00% | 0.03% |
| March 3, 2025 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | M | Common Stock | 57637 | $0.00 | 3,253,023.0000 | 185,789,815 | 1.80% | 0.03% |
| March 4, 2025 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 23023 | $1.55 | 3,230,000.0000 | 185,789,815 | 0.71% | 0.01% |
| Feb. 26, 2025 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | A | Restricted Stock Unit | 57637 | $0.00 | 57,637.0000 | 185,789,815 | 9999.99% | 0.03% |
| March 12, 2024 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | M | Restricted Stock Unit | 64666 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| March 14, 2024 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 63611 | $2.02 | 3,181,281.0000 | 0 | 1.96% | 0.00% |
| March 13, 2024 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 62315 | $2.06 | 3,244,892.0000 | 0 | 1.88% | 0.00% |
| March 12, 2024 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | M | Common Stock | 64666 | $0.00 | 3,307,207.0000 | 0 | 1.99% | 0.00% |
| March 1, 2024 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | A | Restricted Stock Unit | 575000 | $0.00 | 3,242,541.0000 | 0 | 21.56% | 0.00% |
| March 13, 2023 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 22732 | $2.80 | 2,658,346.0000 | 0 | 0.85% | 0.00% |
| March 12, 2023 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | M | Restricted Stock Unit | 107525 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| March 12, 2023 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | M | Restricted Stock Unit | 64667 | $0.00 | 64,666.0000 | 0 | 50.00% | 0.00% |
| March 12, 2023 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | M | Common Stock | 64667 | $0.00 | 2,681,078.0000 | 0 | 2.47% | 0.00% |
| March 13, 2023 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | S | Common Stock | 37748 | $2.80 | 2,616,411.0000 | 0 | 1.42% | 0.00% |
| March 12, 2023 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | M | Common Stock | 107525 | $0.00 | 2,654,159.0000 | 0 | 4.22% | 0.00% |
| March 1, 2023 | CERUS CORP | $CERS | Greenman William Mariner | President and CEO | A | Restricted Stock Unit | 575000 | $0.00 | 2,546,634.0000 | 0 | 29.16% | 0.00% |