Form4.ai tracks every SEC insider trade in real time. See every COSO insider filing with a free account — no card.
See every COSO insider filing — free account, no card.
Free accountCoastalSouth Bancshares, Inc. (COSO) has 5 SEC Form 4 insider filings on record in the last 90 days. That includes 1 insider purchase totalling $9K, and 4 sales totalling $305K. Most recent filing: Oct. 26, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 26, 2026 SEC filing | Bruderer Ernst W. Director | Sold | $167,495 | — |
| Sep 14, 2026 SEC filing | MACLEOD JAMES S Director | Bought | $9,350 | -0.8% 30D |
| Aug 31, 2026 SEC filing | Bruderer Ernst W. Director | Sold | $54,856 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.