COSO

CoastalSouth Bancshares, Inc.$27.40-0.09 (-0.33%)

Prev Close$27.49·MCap$288.9M·P/E12.45·Vol57.9K·Yield0.00%

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Buys (12M)

$42.5K

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Sells (12M)

$283.1K

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Net Activity

Net Seller

$240.6K

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at CoastalSouth Bancshares, Inc. (COSO) has been dominated by selling, with 2 insider purchases totaling $42.5K and 5 insider sales totaling $283.1K. The most recent insider transaction was by Bruderer Ernst W. (director), who sold $54.9K worth of shares on Aug 31, 2026. CoastalSouth Bancshares, Inc. operates in the Financial Services sector, within the Banks - Regional industry, with a market cap of $288.9M.

COSO Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 31, 2026	Bruderer Ernst W.	director	Sell	2,000	$27.43	$54.9K	41,131
Aug 26, 2026	Bruderer Ernst W.	director	Sell	2,000	$27.50	$55.0K	43,131
Aug 18, 2026	Bruderer Ernst W.	director	Sell	1,000	$27.89	$27.9K	45,131
Aug 13, 2026	Bruderer Ernst W.	director	Sell	1,000	$27.56	$27.6K	46,131
May 6, 2026	Valduga Anthony P.	officer: CFO AND COO	Sell	4,558	$25.84	$117.8K	86,115
Mar 9, 2026	Stone Stephen R.	director, officer: PRESIDENT AND CEO	Buy	200	$24.15	$4.8K	120,385
Feb 10, 2026	HIGH MICHAEL B	Director	Buy	1,500	$25.14	$37.7K	0
Jul 2, 2025	ALDRIDGE JOHN G JR	Director	Buy	5,000	$21.50	$107.5K	0
Jul 2, 2025	Askins L. Scott	Director	Buy	2,325	$21.50	$50.0K	0
Jul 2, 2025	Bruderer Ernst W.	Director	Buy	2,000	$21.50	$43.0K	0
Jul 2, 2025	FRAWLEY PATRICK M	Director	Buy	4,650	$21.50	$100.0K	0
Jul 2, 2025	Gutin Boris	Director	Buy	11,000	$21.50	$236.5K	0
Jul 2, 2025	Hemby Lauren M.	CHIEF ACCOUNTING OFFICER	Buy	4,500	$21.50	$96.8K	0
Jul 2, 2025	MACLEOD JAMES S	Director	Buy	10,000	$21.50	$215.0K	0
Jul 2, 2025	Richardson James N. Jr.	Director	Buy	20,000	$21.50	$430.0K	0
Jul 2, 2025	Stone Stephen R.	PRESIDENT AND CEO	Buy	2,200	$21.50	$47.3K	0
Jul 2, 2025	Topper Joseph V. Jr.	Director	Buy	100,000	$21.50	$2.15M0.8% OS	0
Jul 2, 2025	Turner Cameron Bradley	CHIEF CREDIT OFFICER	Buy	1,000	$21.50	$21.5K	0
Jul 2, 2025	Valduga Anthony P.	CFO AND COO	Buy	1,500	$21.50	$32.3K	0

COSO Insider Buying Activity

The following table shows recent insider purchases of CoastalSouth Bancshares, Inc. (COSO) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Mar 9, 2026	Stone Stephen R.	director, officer: PRESIDENT AND CEO	Buy	200	$24.15	$4.8K	120,385
Feb 10, 2026	HIGH MICHAEL B	Director	Buy	1,500	$25.14	$37.7K	0
Jul 2, 2025	ALDRIDGE JOHN G JR	Director	Buy	5,000	$21.50	$107.5K	0
Jul 2, 2025	Askins L. Scott	Director	Buy	2,325	$21.50	$50.0K	0
Jul 2, 2025	Bruderer Ernst W.	Director	Buy	2,000	$21.50	$43.0K	0
Jul 2, 2025	FRAWLEY PATRICK M	Director	Buy	4,650	$21.50	$100.0K	0
Jul 2, 2025	Gutin Boris	Director	Buy	11,000	$21.50	$236.5K	0
Jul 2, 2025	Hemby Lauren M.	CHIEF ACCOUNTING OFFICER	Buy	4,500	$21.50	$96.8K	0
Jul 2, 2025	MACLEOD JAMES S	Director	Buy	10,000	$21.50	$215.0K	0
Jul 2, 2025	Richardson James N. Jr.	Director	Buy	20,000	$21.50	$430.0K	0
Jul 2, 2025	Stone Stephen R.	PRESIDENT AND CEO	Buy	2,200	$21.50	$47.3K	0
Jul 2, 2025	Topper Joseph V. Jr.	Director	Buy	100,000	$21.50	$2.15M0.8% OS	0
Jul 2, 2025	Turner Cameron Bradley	CHIEF CREDIT OFFICER	Buy	1,000	$21.50	$21.5K	0
Jul 2, 2025	Valduga Anthony P.	CFO AND COO	Buy	1,500	$21.50	$32.3K	0

COSO Insider Selling Activity

The following table shows recent insider sales of CoastalSouth Bancshares, Inc. (COSO) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 31, 2026	Bruderer Ernst W.	director	Sell	2,000	$27.43	$54.9K	41,131
Aug 26, 2026	Bruderer Ernst W.	director	Sell	2,000	$27.50	$55.0K	43,131
Aug 18, 2026	Bruderer Ernst W.	director	Sell	1,000	$27.89	$27.9K	45,131
Aug 13, 2026	Bruderer Ernst W.	director	Sell	1,000	$27.56	$27.6K	46,131
May 6, 2026	Valduga Anthony P.	officer: CFO AND COO	Sell	4,558	$25.84	$117.8K	86,115