United States Banking Services

CoastalSouth Bancshares Inc (COSO)

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CoastalSouth Bancshares Inc. experienced significant insider trading activity recently, characterized by net selling totaling approximately $155,963. Officer Ernst W. Bruderer executed multiple sales throughout August 2026. These divestments occurred following the July earnings report, which showed a slight miss in expectations. The stock currently trades near its annual peak.
Ticker: COSO Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for CoastalSouth Bancshares Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
2.6
Bruderer Ernst W. Non-Executive Director
Transaction date
Sale
Price
478.93
Quantity 62,971 -35.0%
Value US$4,676,879
2.6
Bruderer Ernst W. Officer Officer
Transaction date
Proposed sale
Price
217.10
Quantity 73,784
Value US$142,317
2.6
Bruderer Ernst W. Non-Executive Director
Transaction date
Sale
Price
28.99
Quantity 41,061 +44.4%
Value US$1,011,960
2.6
Bruderer Ernst W. Officer Officer
Transaction date
Proposed sale
Price
27.50
Quantity 2,000
Value US$55,002
2.6
Bruderer Ernst W. Officer Officer
Transaction date
Proposed sale
Price
27.89
Quantity 1,000
Value US$27,888
2.6
Bruderer Ernst W. Non-Executive Director
Transaction date
Sale
Price
27.89
Quantity 1,000 -2.2%
Value US$27,890
2.6
Bruderer Ernst W. Non-Executive Director
Transaction date
Sale
Price
27.56
Quantity 1,000 -2.1%
Value US$27,564
2.6
Bruderer Ernst W. Officer Officer
Transaction date
Proposed sale
Price
27.56
Quantity 1,000
Value US$27,564
2.6
MACLEOD JAMES S Non-Executive Director
Transaction date
Purchase
Price
28.15
Quantity 1,000 +0.1%
Value US$100,000
2.6
MACLEOD JAMES S Non-Executive Director
Transaction date
Purchase
Price
27.61
Quantity 1,000 +0.0%
Value US$100,000
2.0
Valduga Anthony P. CFO AND COO Officer
Transaction date
Sale
Price
25.84
Quantity 4,558 -5.0%
Value US$117,779
2.3
Stone Stephen R. PRESIDENT AND CEO Executive Director
Transaction date
Purchase
Price
24.15
Quantity 200 +0.2%
Value US$4,830
2.0
HIGH MICHAEL B Non-Executive Director
Transaction date
Purchase
Price
25.14
Quantity 1,500 +inf%
Value US$37,710
2.6
Bruderer Ernst W. Non-Executive Director
Transaction date
Purchase
Price
21.50
Quantity 2,000 +4.4%
Value US$43,000
1.5
Hemby Lauren M. CHIEF ACCOUNTING OFFICER Officer
Transaction date
Purchase
Price
21.50
Quantity 4,500 +78.3%
Value US$96,750
2.0
Valduga Anthony P. CFO AND COO Officer
Transaction date
Purchase
Price
21.50
Quantity 1,500 +1.9%
Value US$32,250
2.3
Stone Stephen R. PRESIDENT AND CEO Executive Director
Transaction date
Purchase
Price
21.50
Quantity 2,200 +1.9%
Value US$47,300
1.5
Gutin Boris Non-Executive Director
Transaction date
Purchase
Price
21.50
Quantity 11,000 +151.0%
Value US$236,500
2.6
MACLEOD JAMES S Non-Executive Director
Transaction date
Purchase
Price
21.50
Quantity 10,000 +inf%
Value US$215,000
1.5
Turner Cameron Bradley CHIEF CREDIT OFFICER Officer
Transaction date
Purchase
Price
21.50
Quantity 1,000 +20.0%
Value US$21,500
3.2
Topper Joseph V. Jr. Non-Executive Director
Transaction date
Purchase
Price
21.50
Quantity 100,000 +1265.8%
Value US$2,150,000
1.5
FRAWLEY PATRICK M Non-Executive Director
Transaction date
Purchase
Price
21.50
Quantity 4,650 +5.9%
Value US$99,975
1.5
Richardson James N. Jr. Non-Executive Director
Transaction date
Purchase
Price
21.50
Quantity 20,000 +18.4%
Value US$430,000
1.5
Askins L. Scott Non-Executive Director
Transaction date
Purchase
Price
21.50
Quantity 2,325 +19.9%
Value US$49,988
2.0
ALDRIDGE JOHN G JR Non-Executive Director
Transaction date
Purchase
Price
21.50
Quantity 5,000 +38.1%
Value US$107,500
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-31 2026-08-31 S Sale
2.6
Bruderer Ernst W.
Non-Executive Director
62,971 -35.0%
478.93
US$4,676,879 		62,971 -35.0% 478.93 US$4,676,879
2026-08-31 2026-08-31 PrS Proposed sale
2.6
Bruderer Ernst W.

Officer

Officer
73,784
217.10
US$142,317 		73,784 217.10 US$142,317
2026-08-26 2026-08-26 S Sale
2.6
Bruderer Ernst W.
Non-Executive Director
41,061 +44.4%
28.99
US$1,011,960 		41,061 +44.4% 28.99 US$1,011,960
2026-08-26 2026-08-26 PrS Proposed sale
2.6
Bruderer Ernst W.

Officer

Officer
2,000
27.50
US$55,002 		2,000 27.50 US$55,002
2026-08-24 2026-08-18 PrS Proposed sale
2.6
Bruderer Ernst W.

Officer

Officer
1,000
27.89
US$27,888 		1,000 27.89 US$27,888
2026-08-18 2026-08-18 S Sale
2.6
Bruderer Ernst W.
Non-Executive Director
1,000 -2.2%
27.89
US$27,890 		1,000 -2.2% 27.89 US$27,890
2026-08-13 2026-08-12 S Sale
2.6
Bruderer Ernst W.
Non-Executive Director
1,000 -2.1%
27.56
US$27,564 		1,000 -2.1% 27.56 US$27,564
2026-08-25 2026-08-10 PrS Proposed sale
2.6
Bruderer Ernst W.

Officer

Officer
1,000
27.56
US$27,564 		1,000 27.56 US$27,564
2026-09-14 2026-08-07 B Purchase
2.6
MACLEOD JAMES S
Non-Executive Director
1,000 +0.1%
28.15
US$100,000 		1,000 +0.1% 28.15 US$100,000
2026-09-14 2026-08-06 B Purchase
2.6
MACLEOD JAMES S
Non-Executive Director
1,000 +0.0%
27.61
US$100,000 		1,000 +0.0% 27.61 US$100,000
2026-05-06 2026-05-06 S Sale
2.0
Valduga Anthony P.

CFO AND COO

Officer
4,558 -5.0%
25.84
US$117,779 		4,558 -5.0% 25.84 US$117,779
2026-03-09 2026-03-09 B Purchase
2.3
Stone Stephen R.

PRESIDENT AND CEO

Executive Director
200 +0.2%
24.15
US$4,830 		200 +0.2% 24.15 US$4,830
2026-02-12 2026-02-10 B Purchase
2.0
HIGH MICHAEL B
Non-Executive Director
1,500 +inf%
25.14
US$37,710 		1,500 +inf% 25.14 US$37,710
2025-07-07 2025-07-02 B Purchase
2.6
Bruderer Ernst W.
Non-Executive Director
2,000 +4.4%
21.50
US$43,000 		2,000 +4.4% 21.50 US$43,000
2025-07-07 2025-07-02 B Purchase
1.5
Hemby Lauren M.

CHIEF ACCOUNTING OFFICER

Officer
4,500 +78.3%
21.50
US$96,750 		4,500 +78.3% 21.50 US$96,750
2025-07-07 2025-07-02 B Purchase
2.0
Valduga Anthony P.

CFO AND COO

Officer
1,500 +1.9%
21.50
US$32,250 		1,500 +1.9% 21.50 US$32,250
2025-07-07 2025-07-02 B Purchase
2.3
Stone Stephen R.

PRESIDENT AND CEO

Executive Director
2,200 +1.9%
21.50
US$47,300 		2,200 +1.9% 21.50 US$47,300
2025-07-07 2025-07-02 B Purchase
1.5
Gutin Boris
Non-Executive Director
11,000 +151.0%
21.50
US$236,500 		11,000 +151.0% 21.50 US$236,500
2025-07-07 2025-07-02 B Purchase
2.6
MACLEOD JAMES S
Non-Executive Director
10,000 +inf%
21.50
US$215,000 		10,000 +inf% 21.50 US$215,000
2025-07-07 2025-07-02 B Purchase
1.5
Turner Cameron Bradley

CHIEF CREDIT OFFICER

Officer
1,000 +20.0%
21.50
US$21,500 		1,000 +20.0% 21.50 US$21,500
2025-07-07 2025-07-02 B Purchase
3.2
Topper Joseph V. Jr.
Non-Executive Director
100,000 +1265.8%
21.50
US$2,150,000 		100,000 +1265.8% 21.50 US$2,150,000
2025-07-07 2025-07-02 B Purchase
1.5
FRAWLEY PATRICK M
Non-Executive Director
4,650 +5.9%
21.50
US$99,975 		4,650 +5.9% 21.50 US$99,975
2025-07-07 2025-07-02 B Purchase
1.5
Richardson James N. Jr.
Non-Executive Director
20,000 +18.4%
21.50
US$430,000 		20,000 +18.4% 21.50 US$430,000
2025-07-07 2025-07-02 B Purchase
1.5
Askins L. Scott
Non-Executive Director
2,325 +19.9%
21.50
US$49,988 		2,325 +19.9% 21.50 US$49,988
2025-07-07 2025-07-02 B Purchase
2.0
ALDRIDGE JOHN G JR
Non-Executive Director
5,000 +38.1%
21.50
US$107,500 		5,000 +38.1% 21.50 US$107,500
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