ADVM insider buying
2 cluster buysAdverum Biotechnologies, Inc. · Healthcare
When two or more insiders at Adverum Biotechnologies, Inc. buy ADVM on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in ADVM plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Dec 5 – Dec 8, 2025Detected Dec 8, 2025High conviction2 insidersTotal bought$717.9KMarket cap$96.3M
- Feb 26 – Apr 23, 2025Detected Apr 23, 20252 insidersTotal bought$3.3MMarket cap$96.3M
All notable open-market buys in ADVM
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Dec 8, 2025 | Fischer Laurentcluster Director, CEO, PRESIDENT AND DIRECTOR | 117,614 | $4.31 | $506.9K | SEC ↗ |
| Dec 5, 2025 | Soparkar Petercluster CHIEF OPERATING OFFICER | 50,000 | $4.22 | $211.0K | SEC ↗ |
| Apr 23, 2025 | Leonard Braden Michaelcluster 10% Owner | 50,000 | $2.98 | $149.0K | SEC ↗ |
| Apr 22, 2025 | Leonard Braden Michaelcluster 10% Owner | 300,000 | $3.00 | $900.0K | SEC ↗ |
| Apr 2, 2025 | Leonard Braden Michaelcluster 10% Owner | 15,209 | $4.04 | $61.4K | SEC ↗ |
| Mar 31, 2025 | Leonard Braden Michaelcluster 10% Owner | 19,566 | $4.38 | $85.7K | SEC ↗ |
| Mar 26, 2025 | Leonard Braden Michaelcluster 10% Owner | 20,407 | $5.04 | $102.9K | SEC ↗ |
| Mar 26, 2025 | Leonard Braden Michaelcluster 10% Owner | 20,407 | $5.04 | $102.9K | SEC ↗ |
| Mar 20, 2025 | Leonard Braden Michaelcluster 10% Owner | 30,600 | $5.61 | $171.7K | SEC ↗ |
| Mar 19, 2025 | Leonard Braden Michaelcluster 10% Owner | 25,000 | $4.94 | $123.5K | SEC ↗ |
| Mar 18, 2025 | Leonard Braden Michaelcluster 10% Owner | 44,341 | $4.73 | $209.7K | SEC ↗ |
| Feb 28, 2025 | Leonard Braden Michaelcluster 10% Owner | 85,068 | $4.60 | $391.3K | SEC ↗ |
| Feb 27, 2025 | Leonard Braden Michaelcluster 10% Owner | 86,802 | $4.46 | $387.1K | SEC ↗ |
| Feb 26, 2025 | Leonard Braden Michaelcluster 10% Owner | 164,886 | $4.01 | $661.2K | SEC ↗ |
| Jul 30, 2024 | 10% Owner | 85,800 | $7.15 | $613.5K | SEC ↗ |
| Jul 18, 2024 | 10% Owner | 80,718 | $9.11 | $735.3K | SEC ↗ |
| Jul 17, 2024 | 10% Owner | 135,546 | $7.75 | $1.1M | SEC ↗ |
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ADVM insider buying — FAQ
- Are insiders buying ADVM stock?
- Yes — 4 distinct insiders have bought ADVM (Adverum Biotechnologies, Inc.) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Dec 8, 2025.
- How much ADVM stock have insiders bought?
- Insiders have bought a combined $6.5M of ADVM across 17 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in ADVM?
- A cluster buy is two or more distinct Adverum Biotechnologies, Inc. insiders — officers, directors, or 10% owners — each buying ADVM on the open market within a rolling window. ADVM has 2 detected cluster buys to date.
- Where does this ADVM insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in ADVM
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy ADVM within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding ADVM.