CRBU insider buying
1 cluster buyCaribou Biosciences, Inc. · Healthcare
When two or more insiders at Caribou Biosciences, Inc. buy CRBU 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 CRBU 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
- Jan 29 – Mar 14, 2025Detected Mar 14, 2025High conviction2 insidersTotal bought$45.1KMarket cap$181.5M
All notable open-market buys in CRBU
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 |
|---|---|---|---|---|---|
| Mar 14, 2025 | Haurwitz Rachel E.cluster Director, President and CEO | 20,000 | $1.02 | $20.4K | SEC ↗ |
| Jan 29, 2025 | Ryali Sriramcluster Chief Financial Officer | 17,360 | $1.42 | $24.7K | SEC ↗ |
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CRBU insider buying — FAQ
- Are insiders buying CRBU stock?
- Yes — 2 distinct insiders have bought CRBU (Caribou Biosciences, 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 Mar 17, 2025.
- How much CRBU stock have insiders bought?
- Insiders have bought a combined $45.1K of CRBU across 2 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in CRBU?
- A cluster buy is two or more distinct Caribou Biosciences, Inc. insiders — officers, directors, or 10% owners — each buying CRBU on the open market within a rolling window. CRBU has 1 detected cluster buy to date.
- Where does this CRBU 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 CRBU
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 CRBU 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 CRBU.