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CoastalSouth Bancshares, Inc. (COSO)
NYSE: COSO · Real-Time Price · USD
27.66-0.26 (-0.95%)
Insider Score
/ 100
COSO Insider Score
CoastalSouth Bancshares, Inc. has a live Insider Score.
Scored on 2 qualifying trades from 1 insider in the last 90 days.
COSO Stock Insider Trading Activity
COSO stock’s insider trading shows 2 purchases for an estimated $9.35K and 5 sales on the open market for an estimated $283.09K by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days2 qualifying buys1 insider$9.35K bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Bruderer Ernst W. Director | Sell | 2,000 | $27.43 | $54.86K | 4.6% | 41,131 | Aug 31, 2026 | — | Form 4 |
| Bruderer Ernst W. Director | Sell | 2,000 | $27.50 | $55.00K | 4.4% | 43,131 | Aug 26, 2026 | — | Form 4 |
| Bruderer Ernst W. Director | Sell | 1,000 | $27.89 | $27.89K | 2.2% | 45,131 | Aug 18, 2026 | — | Form 4 |
| Bruderer Ernst W. Director | Sell | 1,000 | $27.56 | $27.56K | 2.1% | 46,131 | Aug 12, 2026 | — | Form 4 |
| MACLEOD JAMES S Director | Buy | 238 | $28.15 | $6.70K | 0.1% | 201,585 | Aug 7, 2026 | D | Form 4 |
| MACLEOD JAMES S Director | Buy | 96 | $27.61 | $2.65K | 0.0% | 201,347 | Aug 6, 2026 | DFirst Buy | Form 4 |
| Valduga Anthony P. CFO | Gift | 2,000 | — | — | 2.3% | 84,115 | May 6, 2026 | — | Form 4 |
| Valduga Anthony P. CFO | Sell | 4,558 | $25.84 | $117.78K | 5.0% | 86,115 | May 6, 2026 | — | Form 4 |
| Hemby Lauren M. Other | Option exercise | 4,000 | — | — | 39.0% | 14,250 | Apr 27, 2026 | — | Form 4 |
| Stone Stephen R. CEO | Option exercise | 17,000 | — | — | 14.1% | 137,385 | Apr 27, 2026 | — | Form 4 |
| Stone Stephen R. CEO | Tax withheld | 5,022 | $25.59 | $128.51K | 3.7% | 132,363 | Apr 27, 2026 | — | Form 4 |
| Hemby Lauren M. Other | Tax withheld | 1,181 | $25.59 | $30.22K | 8.3% | 13,069 | Apr 27, 2026 | — | Form 4 |
| Valduga Anthony P. CFO | Option exercise | 13,000 | — | — | 15.9% | 94,514 | Apr 27, 2026 | — | Form 4 |
| Valduga Anthony P. CFO | Tax withheld | 3,841 | $25.59 | $98.29K | 4.1% | 90,673 | Apr 27, 2026 | — | Form 4 |
| Turner Cameron Bradley Other | Option exercise | 4,000 | — | — | 66.7% | 10,000 | Apr 27, 2026 | — | Form 4 |
| Turner Cameron Bradley Other | Tax withheld | 1,169 | $25.59 | $29.91K | 11.7% | 8,831 | Apr 27, 2026 | — | Form 4 |
| Stone Stephen R. CEO | Buy | 200 | $24.15 | $4.83K | 0.2% | 120,385 | Mar 9, 2026 | CFirst BuyCEO Buy | Form 4 |
| HIGH MICHAEL B Director | Buy | 1,500 | $25.14 | $37.71K | New | 1,500 | Feb 10, 2026 | BFirst Buy | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Buy (P) — Open-market or private purchase
- Sell (S) — Open-market or private sale
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Option exercise (M) — Exercise or conversion of an exempt derivative
- Gift (G) — Bona fide gift
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.