SLS insider buying
1 cluster buySELLAS Life Sciences Group, Inc. · Healthcare
When two or more insiders at SELLAS Life Sciences Group, Inc. buy SLS in a qualifying detection window, the grouped purchases provide a starting point for further research. Below is every cluster we've detected in SLS 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
- May 22 – Jun 12, 2025Detected Jun 12, 20253 insidersTotal bought$84.6KMarket cap$2.6B
All notable open-market buys in SLS
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 |
|---|---|---|---|---|---|
| Nov 19, 2025 | Director | 63,400 | $1.59 | $100.8K | SEC ↗ |
| Jun 12, 2025 | VAN NOSTRAND ROBERT Lcluster Director | 10,000 | $1.48 | $14.8K | SEC ↗ |
| May 30, 2025 | Wasman Janecluster Director | 20,000 | $1.69 | $33.8K | SEC ↗ |
| May 22, 2025 | Kalin Katherine Bachcluster Director | 20,000 | $1.80 | $36.0K | SEC ↗ |
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SLS insider buying — FAQ
- Are insiders buying SLS stock?
- Yes — 4 distinct insiders have bought SLS (SELLAS Life Sciences Group, Inc.) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Nov 21, 2025.
- How much SLS stock have insiders bought?
- Insiders have bought a combined $185.4K of SLS across 4 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in SLS?
- A cluster buy is two or more distinct SELLAS Life Sciences Group, Inc. insiders — officers, directors, or 10% owners — each buying SLS on the open market within a rolling window. SLS has 1 detected cluster buy to date.
- Where does this SLS 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 SLS
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 SLS within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Transactions link to official filings; prices and market capitalizations may be cached market data. Read our methodology and data limits before interpreting the figures. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding SLS.