buyNotable cluster of 2
Laurent Fischer bought $554k of ADVM
CEO, PRESIDENT AND DIRECTOR at Adverum Biotechnologies, Inc.. 128,699 shares at an average of $4.30, traded Dec 5, 2025, filed Dec 8, 2025.
Conviction score
62Value
$554k
128,699 shares
Holdings after
201,513
+177% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet
Score components
- +25RoleCEO
- +19Trade size$554k at market
- +10Relative to holdingsHoldings up 177%
- 0Price contextNo price history yet
- +8Cluster2 insiders buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Rows in this filing
Every transaction in Form 4 0001379344-25-000004, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Dec 5, 2025 | POpen-market purchase Common Stock | +11,085 | $4.24 | $47k | 83,899 | Dec 8, 2025 |
| Dec 8, 2025 | POpen-market purchase Common Stock | +117,614 | $4.31 | $507k | 201,513 | Dec 8, 2025 |
Related signals
Other insiders at Adverum Biotechnologies, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 50Moderate | Adverum Biotechnologies, Inc. | Peter Soparkar CHIEF OPERATING OFFICER | $211k 50,000 shares | +166% | |
| 42Moderate | ADVMsell Adverum Biotechnologies, Inc. | Braden Michael Leonard owner | $2.2M 524,560 shares | -21% | |
| 42Moderate | ADVMsell Adverum Biotechnologies, Inc. | Braden Michael Leonard owner | $2.4M 574,886 shares | -19% | |
| 40Moderate | Adverum Biotechnologies, Inc. | Laurent Fischer CEO, PRESIDENT AND DIRECTOR | $18k 9,126 shares | -9% | |
| 30Weak | Adverum Biotechnologies, Inc. | Setareh Seyedkazemi CHIEF DEVELOPMENT OFFICER | $1,848 924 shares | -6% | |
| 35Weak | Adverum Biotechnologies, Inc. | Peter Soparkar CHIEF OPERATING OFFICER | $5,920 2,960 shares | -7% | |
| 30Weak | ADVMbuy Adverum Biotechnologies, Inc. | Braden Michael Leonard owner | $189k 37,000 shares | +35% | |
| 30Weak | ADVMbuy Adverum Biotechnologies, Inc. | Braden Michael Leonard owner | $189k 37,000 shares | +35% | |
| 40Moderate | ADVMbuy Adverum Biotechnologies, Inc. | Braden Michael Leonard owner | $1.0M 350,000 shares | +13% | |
| 23Weak | ADVMbuy Adverum Biotechnologies, Inc. | Braden Michael Leonard owner | $147k 34,775 shares | +1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.