Skip to content

Insider · CIK 0002067397

Ernst W. Bruderer

director

Files at COSO (CoastalSouth Bancshares, Inc.). First filing Jul 7, 2025, latest Aug 31, 2026.

Ernst W. Bruderer files SEC Form 4 as director at COSO (CoastalSouth Bancshares, Inc.). Since Jul 7, 2025, Ernst W. Bruderer has reported 1 open-market buy worth $43k and 4 open-market sells worth $165k, the latest filed on Aug 31, 2026.

A track record needs three past buys with six months of prices behind them; Ernst W. Bruderer has 1, so none is measured yet.

The newest scored trade: sold $55k of COSO on Aug 31, 2026, filed Aug 31, 2026, scored 22 (weak). In the last 12 months: 0 buys worth $0 and 4 sells worth $165k.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 1
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
1 / 4
$43k bought, $165k sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

COSO: CoastalSouth Bancshares, Inc.

COSOOct 9, 2026 · close 26.67

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
22Weak
COSOsell
CoastalSouth Bancshares, Inc.
$55k
2,000 shares
-5%+31% from low-2% from high
22Weak
COSOsell
CoastalSouth Bancshares, Inc.
$55k
2,000 shares
-4%+30% from low-2% from high
20Weak
COSOsell
CoastalSouth Bancshares, Inc.
$28k
1,000 shares
-2%+33% from low-1% from high
0Weak
COSOsell10b5-1
CoastalSouth Bancshares, Inc.
$28k
1,000 shares
-2%+39% from low-1% from high
36Weak
COSObuy 12
CoastalSouth Bancshares, Inc.
$43k
2,000 shares
+4%+11% from low-2% from high

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Aug 31, 2026 COSO
CoastalSouth Bancshares, Inc.
2,000
0.02% of outstanding
$55kAug 31, 2026$110k
Aug 26, 2026 COSO
CoastalSouth Bancshares, Inc.
2,000
0.02% of outstanding
$55kAug 26, 2026$55k
Aug 25, 2026 COSO
CoastalSouth Bancshares, Inc.
1,000
0.01% of outstanding
$28kAug 10, 2026none
Aug 24, 2026 COSO
CoastalSouth Bancshares, Inc.
1,000
0.01% of outstanding
$28kAug 18, 2026$28k

Transactions

Every row this insider has filed, 6 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Aug 31, 2026COSO
CoastalSouth Bancshares, Inc.
SOpen-market sale
Common Stock
-2,000$27.43$55k41,13143 d ago
Aug 26, 2026COSO
CoastalSouth Bancshares, Inc.
SOpen-market sale
Common Stock
-2,000$27.50$55k43,131Aug 26, 2026
Aug 18, 2026COSO
CoastalSouth Bancshares, Inc.
SOpen-market sale
Common Stock
-1,000$27.89$28k45,131Aug 18, 2026
Aug 12, 2026COSO
CoastalSouth Bancshares, Inc.
SOpen-market sale
Common Stock10b5-1
-1,000$27.56$28k46,131Aug 13, 2026
Feb 11, 2026COSO
CoastalSouth Bancshares, Inc.
AGrant or award
Restricted Stock Unitsderivative
+868--868Feb 13, 2026
Jul 2, 2025COSO
CoastalSouth Bancshares, Inc.
POpen-market purchase
Common Stock
+2,000$21.50$43k47,131Jul 7, 2025

Questions about Ernst W. Bruderer

Answered from the filings on this page, as of the latest one.

Is Ernst W. Bruderer buying or selling?

In the last 12 months Ernst W. Bruderer reported 0 open-market buys worth $0 and 4 open-market sells worth $165k on SEC Form 4; the latest was sold $55k of COSO on Aug 31, 2026. Grants, option exercises and tax withholding are not counted.

How did Ernst W. Bruderer's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Ernst W. Bruderer has 1.

Where does Ernst W. Bruderer file Form 4?

Ernst W. Bruderer has filed Form 4 at COSO (CoastalSouth Bancshares, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.