Fischer Laurent, CEO, President, and Director of Adverum Biotechnologies ($ADVM), made two open market purchases totaling 554 thousand dollars over the last year, with the latest on December 8, 2025. These rank 762nd among nearly 5,000 insiders, below the average of 1.5 million dollars across 3.3 transactions. He sold shares once for 18 thousand dollars on May 15, 2025, ranking 11,078th out of over 11,600 insiders, well under the typical 8.6 million dollars across 6.4 trades.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 58497 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.25% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 31500 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.13% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 63000 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.27% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 45499 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.19% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 68000 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.29% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 120000 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.51% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | M | Stock Option (Right to Buy) | 150000 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.64% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 200000 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.85% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 93000 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.40% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | U | Common Stock - Performance Stock Units | 522666 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 2.23% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 110420 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.47% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 67502 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.29% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | M | Common Stock | 150000 | $4.20 | 351,513.0000 | 23,487,000 | 74.44% | 0.64% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | U | Common Stock | 351513 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 1.50% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | U | Common Stock - Restricted Stock Units | 25000 | $0.00 | 0.0000 | 23,487,000 | 100.00% | 0.11% |
| Dec. 9, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Common Stock - Performance Stock Units | 500000 | $0.00 | 522,666.0000 | 23,487,000 | 2205.95% | 2.13% |
| Dec. 5, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | P | Common Stock | 11085 | $4.24 | 83,899.0000 | 23,487,000 | 15.22% | 0.05% |
| Dec. 8, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | P | Common Stock | 117614 | $4.31 | 201,513.0000 | 23,487,000 | 140.19% | 0.50% |
| June 26, 2025 | Atai Beckley N.V. | $ATAI | Fischer Laurent | Not found | A | Stock Option | 103000 | $0.00 | 103,000.0000 | 198,306,455 | 9999.99% | 0.05% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 31500 | $0.00 | 0.0000 | 19,782,000 | 100.00% | 0.16% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 120000 | $0.00 | 0.0000 | 19,782,000 | 100.00% | 0.61% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 120000 | $0.00 | 120,000.0000 | 19,782,000 | 9999.99% | 0.61% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 68000 | $0.00 | 0.0000 | 19,782,000 | 100.00% | 0.34% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 68000 | $0.00 | 68,000.0000 | 19,782,000 | 9999.99% | 0.34% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 45499 | $0.00 | 0.0000 | 19,782,000 | 100.00% | 0.23% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 45499 | $0.00 | 45,499.0000 | 19,782,000 | 9999.99% | 0.23% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 63000 | $0.00 | 0.0000 | 19,782,000 | 100.00% | 0.32% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 63000 | $0.00 | 63,000.0000 | 19,782,000 | 9999.99% | 0.32% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 31500 | $0.00 | 31,500.0000 | 19,782,000 | 9999.99% | 0.16% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 58497 | $0.00 | 0.0000 | 19,782,000 | 100.00% | 0.30% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 58497 | $0.00 | 58,497.0000 | 19,782,000 | 9999.99% | 0.30% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 67502 | $0.00 | 0.0000 | 19,782,000 | 100.00% | 0.34% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 67502 | $0.00 | 67,502.0000 | 19,782,000 | 9999.99% | 0.34% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | D | Stock Option (Right to Buy) | 110420 | $0.00 | 0.0000 | 19,782,000 | 100.00% | 0.56% |
| June 17, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 110420 | $0.00 | 110,420.0000 | 19,782,000 | 9999.99% | 0.56% |
| May 29, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Fischer Laurent | Not found | A | Stock Option (right to buy) | 6268 | $0.00 | 6,268.0000 | 47,522,594 | 9999.99% | 0.01% |
| May 29, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Fischer Laurent | Not found | A | Restricted Stock Units | 3977 | $0.00 | 3,977.0000 | 47,522,594 | 9999.99% | 0.01% |
| May 15, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | S | Common Stock | 9126 | $2.00 | 87,488.0000 | 19,782,000 | 9.45% | 0.05% |
| Feb. 25, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 150000 | $0.00 | 150,000.0000 | 19,782,000 | 9999.99% | 0.76% |
| Feb. 25, 2025 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Common Stock | 25000 | $0.00 | 96,614.0000 | 19,782,000 | 34.91% | 0.13% |
| Aug. 2, 2024 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 200000 | $0.00 | 200,000.0000 | 20,852,000 | 9999.99% | 0.96% |
| June 13, 2024 | Atai Beckley N.V. | $ATAI | Fischer Laurent | Not found | A | Stock Option | 206000 | $0.00 | 206,000.0000 | 0 | 9999.99% | 0.00% |
| June 5, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Fischer Laurent | Not found | A | Deferred Stock Units | 5703 | $0.00 | 5,703.0000 | 40,885,124 | 9999.99% | 0.01% |
| June 5, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Fischer Laurent | Not found | A | Stock Option (right to buy) | 8779 | $0.00 | 8,779.0000 | 40,885,124 | 9999.99% | 0.02% |
| Oct. 3, 2023 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 315000 | $0.00 | 315,000.0000 | 10,099,000 | 9999.99% | 3.12% |
| Feb. 12, 2024 | Adverum Biotechnologies, Inc. | $ADVM | Fischer Laurent | CEO, PRESIDENT AND DIRECTOR | A | Stock Option (Right to Buy) | 1104200 | $0.00 | 1,104,200.0000 | 10,082,000 | 9999.99% | 10.95% |