Laurent Fischer is CEO & Director at Adverum Biotechnologies, Inc. (ADVM). They have made 11 open-market trades across 2 companies since 2019, most recently 2026-05-29.
CIK 0001379344
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
8 open-market purchases totalling $1.6M since 2019, against 3 sales. Across 7 scored buys the stock is down 2.4% at ninety days, and 5.5 points behind the S&P over the same stretch.
7 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| ADVM | 522,666 | $2.3M |
| MIRM | 10,727 | $859K |
| Total | $3.1M |
Shares reported on the most recent Form 4, priced at the 2026-06-02 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 29% | 0% | 29% |
| Avg Move | -2.8% | -11.2% | -2.4% |
| Alpha | -3.6% | -11.0% | -5.5% |
| Scored | 7 | 7 | 7 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ADVM | BUY | 2025-12-05 | 2025-12-08 | $4.31 | $1.1M | N/A | N/A | N/A |
| ADVM | SELL | 2025-05-15 | 2025-05-16 | $2.00 | $18K | +9.7% | +19.9% | +34.5% |
| ADVM | SELL | 2023-03-15 | 2023-03-17 | $0.78 | $32K | -2.7% | +14.1% | +89.4% |
| ADVM | SELL | 2022-09-19 | 2022-09-21 | $1.07 | $44K | -3.8% | -15.4% | -44.9% |
| ADVM | BUY | 2022-04-20 | 2022-04-22 | $1.11 | $28K | -0.9% | -28.8% | +48.3% |
| ADVM | BUY | 2021-12-08 | 2021-12-10 | $1.82 | $46K | -0.5% | -11.8% | -28.5% |
| ADVM | BUY | 2021-03-24 | 2021-03-24 | $9.88 | $198K | +1.7% | -2.3% | -62.8% |
| ADVM | BUY | 2021-01-15 | 2021-01-19 | $11.53 | $99K | -7.0% | -3.2% | -32.4% |
| ADVM | BUY | 2020-08-17 | 2020-08-19 | $13.00 | $100K | -9.2% | -7.9% | -9.7% |
| MIRM | BUY | 2019-09-16 | 2019-09-18 | $9.39 | $20K | +7.1% | -15.1% | +75.6% |
| MIRM | BUY | 2019-09-06 | 2019-09-10 | $10.60 | $49K | -11.0% | -9.2% | -7.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.