LYTIR

Company · COSO

CoastalSouth Bancshares, Inc.

Nasdaq's symbol directory lists COSO on the New York Stock Exchange as “CoastalSouth Bancshares, Inc. Common Stock”.

In the 12 months to Nov 8, 2026: insiders bought on 2 occasions ($9K); insiders sold on 5 occasions ($333K); 1 planned-sale notice; 2 filings by holders of 5% or more; 1 company report (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $9K in total; Insider sales: $333K in total.Aug: Insider purchases $9KAug: Insider sales $165KOct: Insider sales $167KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $9KInsider sales below: $333K
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Bruderer Ernst W. sold on 5 days 1 of them under a 10b5-1 plan latest Oct 23, 2026 sold $333K
  2. MACLEOD JAMES S bought on 2 days latest Aug 7, 2026 bought $9K
Every trade (7)
  1. SELLBruderer Ernst W. sold Oct 23, 2026 6,000 shares filing $167K
  2. SELLBruderer Ernst W. sold Aug 31, 2026 2,000 shares filing $55K
  3. SELLBruderer Ernst W. sold Aug 26, 2026 2,000 shares filing $55K
  4. SELLBruderer Ernst W. sold Aug 18, 2026 1,000 shares filing $28K
  5. SELLBruderer Ernst W. sold Aug 12, 2026 1,000 shares 10b5-1 plan (scheduled) filing $28K
  6. BUYMACLEOD JAMES S bought Aug 7, 2026 238 shares filing $7K
  7. BUYMACLEOD JAMES S bought Aug 6, 2026 96 shares filing $3K

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. Bruderer Ernst W. filed Oct 23, 2026 Director 6,000 shares planned sale date 10/23/2026 filing $167K

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. Patriot Financial Partners II, L.P. filed Aug 18, 2026 Schedule 13G/A passive filing 4.2%
  2. Fourthstone LLC filed Aug 14, 2026 Schedule 13G/A passive filing 1.87%

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Results of operations and financial condition; Regulation FD disclosure filing Oct 19, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.