COSO insider buying
2 cluster buysCoastalSouth Bancshares, Inc. · Financials
When two or more insiders at CoastalSouth Bancshares, Inc. buy COSO 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 COSO 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
- Feb 10 – Mar 9, 2026Detected Mar 9, 2026High conviction2 insidersTotal bought$42.5KMarket cap$320.4M
- Jul 2 – Jul 2, 2025Detected Jul 2, 20255 insidersTotal bought$3.1MMarket cap$331.7M
All notable open-market buys in COSO
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 9, 2026 | Stone Stephen R.cluster Director, PRESIDENT AND CEO | 200 | $24.15 | $4.8K | SEC ↗ |
| Feb 10, 2026 | HIGH MICHAEL Bcluster Director | 1,500 | $25.14 | $37.7K | SEC ↗ |
| Jul 2, 2025 | Topper Joseph V. Jr.cluster Director | 100,000 | $21.50 | $2.2M | SEC ↗ |
| Jul 2, 2025 | Richardson James N. Jr.cluster Director | 20,000 | $21.50 | $430.0K | SEC ↗ |
| Jul 2, 2025 | Gutin Boriscluster Director | 11,000 | $21.50 | $236.5K | SEC ↗ |
| Jul 2, 2025 | MACLEOD JAMES Scluster Director | 10,000 | $21.50 | $215.0K | SEC ↗ |
| Jul 2, 2025 | ALDRIDGE JOHN G JRcluster Director | 5,000 | $21.50 | $107.5K | SEC ↗ |
| Jul 2, 2025 | Director | 4,650 | $21.50 | $100.0K | SEC ↗ |
| Jul 2, 2025 | CHIEF ACCOUNTING OFFICER | 4,500 | $21.50 | $96.8K | SEC ↗ |
| Jul 2, 2025 | Director | 2,325 | $21.50 | $50.0K | SEC ↗ |
| Jul 2, 2025 | Director, PRESIDENT AND CEO | 2,200 | $21.50 | $47.3K | SEC ↗ |
| Jul 2, 2025 | Director | 2,000 | $21.50 | $43.0K | SEC ↗ |
| Jul 2, 2025 | CFO AND COO | 1,500 | $21.50 | $32.3K | SEC ↗ |
| Jul 2, 2025 | CHIEF CREDIT OFFICER | 1,000 | $21.50 | $21.5K | SEC ↗ |
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COSO insider buying — FAQ
- Are insiders buying COSO stock?
- Yes — 13 distinct insiders have bought COSO (CoastalSouth Bancshares, 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 Mar 9, 2026.
- How much COSO stock have insiders bought?
- Insiders have bought a combined $3.6M of COSO across 14 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in COSO?
- A cluster buy is two or more distinct CoastalSouth Bancshares, Inc. insiders — officers, directors, or 10% owners — each buying COSO on the open market within a rolling window. COSO has 2 detected cluster buys to date.
- Where does this COSO 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 COSO
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 COSO 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 COSO.