CBU insider buying
2 cluster buysCOMMUNITY FINANCIAL SYSTEM, INC.
When two or more insiders at COMMUNITY FINANCIAL SYSTEM, INC. buy CBU 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 CBU 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
- Aug 24 – Sep 9, 2026Detected Sep 10, 20263 insidersTotal bought$75.3KMarket capUnknown
- Aug 24 – Aug 27, 2026Detected Aug 28, 20262 insidersTotal bought$50.3KMarket capUnknown
All notable open-market buys in CBU
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 |
|---|---|---|---|---|---|
| Sep 9, 2026 | Singh Savneetcluster Director | 400 | $62.47 | $25.0K | SEC ↗ |
| Aug 27, 2026 | Vaccaro John Acluster Director | 317 | $63.11 | $20.0K | SEC ↗ |
| Aug 24, 2026 | Hall Brenda Mcluster Director | 476 | $63.59 | $30.3K | SEC ↗ |
| Nov 5, 2024 | Director | 320 | $62.20 | $19.9K | SEC ↗ |
| Jun 13, 2024 | Director, President & CEO | 1,000 | $43.52 | $43.5K | SEC ↗ |
CBU insider buying — FAQ
- Are insiders buying CBU stock?
- Yes — 5 distinct insiders have bought CBU (COMMUNITY FINANCIAL SYSTEM, 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 Sep 10, 2026.
- How much CBU stock have insiders bought?
- Insiders have bought a combined $138.7K of CBU across 5 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in CBU?
- A cluster buy is two or more distinct COMMUNITY FINANCIAL SYSTEM, INC. insiders — officers, directors, or 10% owners — each buying CBU on the open market within a rolling window. CBU has 2 detected cluster buys to date.
- Where does this CBU 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 CBU
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 CBU 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 CBU.