COSO Insider Trading Activity and SEC Form 4 Filings
COSO insider trading summary
Over the past 12 months, insiders at CoastalSouth Bancshares, Inc. (COSO) reported 5 sales worth $423K by 2 insiders and 4 open-market purchases worth $52K by 3 insiders on SEC Form 4. Net insider selling was $371K.
Latest COSO insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Oct 23, 2026 | Ernst W. Bruderer | Insider | Sell | $167K (6,000 @ $27.92) |
| Aug 31, 2026 | Ernst W. Bruderer | Insider | Sell | $55K (2,000 @ $27.43) |
| Aug 26, 2026 | Ernst W. Bruderer | Insider | Sell | $55K (2,000 @ $27.50) |
| Aug 12, 2026 | Ernst W. Bruderer | Insider | Sell | $28K (1,000 @ $27.56) |
| Aug 7, 2026 | James S Macleod | Insider | Buy | $7K (238 @ $28.15) |
| Aug 6, 2026 | James S Macleod | Insider | Buy | $3K (96 @ $27.61) |
| May 6, 2026 | Anthony P. Valduga | CFO and COO | Sell | $118K (4,558 @ $25.84) |
| Mar 9, 2026 | Stephen R. Stone | President and CEO | Buy | $5K (200 @ $24.15) |
| Feb 10, 2026 | Michael B High | Insider | Buy | $38K (1,500 @ $25.14) |
| Jul 2, 2025 | Ernst W. Bruderer | Insider | Buy | $43K (2,000 @ $21.50) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.