13 insiders reported 26 Form 4 transactions for CoastalSouth Bancshares, Inc. (COSO) over the past 18 months (most recent 2026-08-18). Recent activity: Bruderer Ernst W. (Director) Sell 1,000 shares, Bruderer Ernst W. (Director) Sell 1,000 shares, Valduga Anthony P. (CFO AND COO) Sell 4,558 shares, Valduga Anthony P. (CFO AND COO) Sell 2,000 shares, Hemby Lauren M. (CHIEF ACCOUNTING OFFICER) Buy 4,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | Bruderer Ernst W. | Director | Sell | 1,000 | $27,890 |
| 2026-08-13 | Bruderer Ernst W. | Director | Sell | 1,000 | $27,564 |
| 2026-05-06 | Valduga Anthony P. | CFO AND COO | Sell | 4,558 | $117,779 |
| 2026-05-06 | Valduga Anthony P. | CFO AND COO | Sell | 2,000 | $0 |
| 2026-04-29 | Hemby Lauren M. | CHIEF ACCOUNTING OFFICER | Buy | 4,000 | $0 |
| 2026-04-29 | Stone Stephen R. | PRESIDENT AND CEO | Buy | 17,000 | $0 |
| 2026-04-29 | Valduga Anthony P. | CFO AND COO | Buy | 13,000 | $0 |
| 2026-04-29 | Turner Cameron Bradley | CHIEF CREDIT OFFICER | Buy | 4,000 | $0 |
| 2026-04-29 | Stone Stephen R. | PRESIDENT AND CEO | Sell | 5,022 | $128,513 |
| 2026-04-29 | Hemby Lauren M. | CHIEF ACCOUNTING OFFICER | Sell | 1,181 | $30,222 |
| 2026-04-29 | Valduga Anthony P. | CFO AND COO | Sell | 3,841 | $98,291 |
| 2026-04-29 | Turner Cameron Bradley | CHIEF CREDIT OFFICER | Sell | 1,169 | $29,915 |
| 2026-03-09 | Stone Stephen R. | PRESIDENT AND CEO | Buy | 200 | $4,830 |
| 2026-02-12 | HIGH MICHAEL B | Director | Buy | 1,500 | $37,710 |
| 2025-07-07 | Gutin Boris | Director | Buy | 11,000 | $236,500 |
| 2025-07-07 | ALDRIDGE JOHN G JR | Director | Buy | 5,000 | $107,500 |
| 2025-07-07 | Bruderer Ernst W. | Director | Buy | 2,000 | $43,000 |
| 2025-07-07 | Topper Joseph V. Jr. | Director | Buy | 100,000 | $2.1M |
| 2025-07-07 | FRAWLEY PATRICK M | Director | Buy | 4,650 | $99,975 |
| 2025-07-07 | Turner Cameron Bradley | CHIEF CREDIT OFFICER | Buy | 1,000 | $21,500 |
| 2025-07-07 | MACLEOD JAMES S | Director | Buy | 10,000 | $215,000 |
| 2025-07-07 | Stone Stephen R. | PRESIDENT AND CEO | Buy | 2,200 | $47,300 |
| 2025-07-07 | Askins L. Scott | Director | Buy | 2,325 | $49,988 |
| 2025-07-07 | Valduga Anthony P. | CFO AND COO | Buy | 1,500 | $32,250 |
| 2025-07-07 | Richardson James N. Jr. | Director | Buy | 20,000 | $430,000 |
Source: SEC Form 4 filings · as of 2026-08-18