GOSS insider buying
1 cluster buyGossamer Bio, Inc. · Healthcare
When two or more insiders at Gossamer Bio, Inc. buy GOSS in a qualifying detection window, the grouped purchases provide a starting point for further research. Below is every cluster we've detected in GOSS 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
- Jun 17 – Jun 21, 2024Detected Jun 21, 2024Executive buyer3 insidersTotal bought$323.2KMarket cap$95.3M
All notable open-market buys in GOSS
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 |
|---|---|---|---|---|---|
| Aug 19, 2025 | Director | 26,050 | $1.92 | $50.0K | SEC ↗ |
| Jun 21, 2024 | Hasnain Faheemcluster Director, President & CEO | 372,000 | $0.67 | $249.2K | SEC ↗ |
| Jun 18, 2024 | Giraudo Bryancluster COO/CFO | 100,000 | $0.59 | $59.0K | SEC ↗ |
| Jun 17, 2024 | Smith Robert Paul JRcluster Chief Commercial Officer | 25,000 | $0.60 | $15.0K | SEC ↗ |
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GOSS insider buying — FAQ
- Are insiders buying GOSS stock?
- Yes — 4 distinct insiders have bought GOSS (Gossamer Bio, 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 Aug 20, 2025.
- How much GOSS stock have insiders bought?
- Insiders have bought a combined $373.3K of GOSS across 4 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in GOSS?
- A cluster buy is two or more distinct Gossamer Bio, Inc. insiders — officers, directors, or 10% owners — each buying GOSS on the open market within a rolling window. GOSS has 1 detected cluster buy to date.
- Where does this GOSS 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 GOSS
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 GOSS 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 GOSS.