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COSO · Coastalsouth Bancshares, Inc.
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COSO CoastalSouth Bancshares (COSO) Insider Trading, Ownership & Congress Trades

Banks · State commercial banks · CIK 0001297107
Quote by TradingView
Form 144 · 5
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
67
13F, latest reported quarter

What the filings say about COSO

Insiders, 180 days
-$441.2K net sold
1 buyer · 2 sellers · 0% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$332.7K
5 notices

CoastalSouth Bancshares insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, CoastalSouth Bancshares, Inc. insiders sold a net $441.2K of stock across 22 Form 4 purchases and sales, with 1 insider buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
Bruderer Ernst W.
Director
SELL
2026-10-26 SECtraded 2026-10-23
6,000
$167.5K
n/a
Context
  • 5 earlier Form 4 trades (code P or S) here by this insider (1 buy, 4 sales), the last on Aug 31, 2026.
  • The trade is 17.1% of the 35,131 shares held after it.
  • No other insider sold within 30 days.
  • 67 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Bruderer Ernst W. sold about $167.5K of COSO on Oct 23, 2026, the largest insider sale at the company on our record; 67 funds added in the latest 13F quarter.
Bruderer Ernst W.
Director
SELL
2026-08-31 SEC
2,000
$54.9K
+1.4%
Context
  • 4 earlier Form 4 trades (code P or S) here by this insider (1 buy, 3 sales), the last on Aug 26, 2026.
  • The trade is 4.9% of the 41,131 shares held after it.
  • No other insider sold within 30 days.
  • 67 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Bruderer Ernst W. sold about $54.9K of COSO on Aug 31, 2026; 67 funds added in the latest 13F quarter.
Bruderer Ernst W.
Director
SELL
2026-08-26 SEC
2,000
$55.0K
+0.9%
Context
  • 3 earlier Form 4 trades (code P or S) here by this insider (1 buy, 2 sales), the last on Aug 18, 2026.
  • The trade is 4.6% of the 43,131 shares held after it.
  • No other insider sold within 30 days.
  • 67 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Bruderer Ernst W. sold about $55.0K of COSO on Aug 26, 2026; 67 funds added in the latest 13F quarter.
Bruderer Ernst W.
Director
SELL
2026-08-18 SEC
1,000
$27.9K
+2.1%
Context
  • 2 earlier Form 4 trades (code P or S) here by this insider (1 buy, 1 sale), the last on Aug 12, 2026.
  • The trade is 2.2% of the 45,131 shares held after it.
  • No other insider sold within 30 days.
  • 67 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Bruderer Ernst W. sold about $27.9K of COSO on Aug 18, 2026; 67 funds added in the latest 13F quarter.
Bruderer Ernst W.
Director
SELL
2026-08-13 SECtraded 2026-08-12
1,000
$27.6K
-0.8%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 buy), the last on Jul 2, 2025.
  • The trade is 2.2% of the 46,131 shares held after it.
  • No other insider sold within 30 days.
  • 67 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Bruderer Ernst W. sold about $27.6K of COSO on Aug 12, 2026; 67 funds added in the latest 13F quarter.
22 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
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Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$441.2K over 180 days
-$323.5K over 90 days
below 61% of Banks
Congress
no House purchase disclosed in the last 12 months
Funds
67 funds bought in last quarter
below 69% of Banks
Revenue
+6.4% year over year
more than 50% of Banks
Margin
1254.0% net margin
more than 96% of Banks
Buybacks
$1.2M repurchased, FY to 2026-06-30
below 72% of Banks
Short interest
1.8% of the float short (float per yahoo 2026-10-26) · 1.1 days to cover · settled 2026-09-30
below 68% of Banks
What changed in the last 30 days
Oct 26Director Bruderer Ernst W. sold $167.5K (Oct 23)
Oct 23Director Bruderer Ernst W. filed to sell $167.3K by Oct 23 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.

Watch COSO

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+29.7%12M
-1%+10%+21%+32%2025-102025-122026-022026-042026-062026-082026-10 2026-10-23 · Bruderer Ernst W. sold $167.5K2026-05-06 · Valduga Anthony P. sold $117.8K2026-08-26 · Bruderer Ernst W. sold $55.0K2026-08-31 · Bruderer Ernst W. sold $54.9K2026-02-10 · HIGH MICHAEL B bought $37.7K2026-08-18 · Bruderer Ernst W. sold $27.9K2026-08-12 · Bruderer Ernst W. sold $27.6K2026-08-07 · MACLEOD JAMES S bought $6.7K2026-03-09 · Stone Stephen R. bought $4.8K2026-08-06 · MACLEOD JAMES S bought $2.7K2026-10-23 · Bruderer Ernst W. filed to sell $167.3K2026-08-31 · Bruderer Ernst W. filed to sell $54.9K2026-08-26 · Bruderer Ernst W. filed to sell $55.0K2026-08-25 · Bruderer Ernst W. filed to sell $27.6K2026-08-24 · Bruderer Ernst W. filed to sell $27.9K
Insider buyInsider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns COSO: institutional holders (13F)

13F holdings, latest reported quarter
Patriot Financial Partners GP II, L.P.
691,367 sh
$18.6M
BlackRock, Inc.
584,198 sh
$15.7M
TWO SIGMA INVESTMENTS, LP
408,489 sh
$11.0M
VANGUARD CAPITAL MANAGEMENT LLC
395,093 sh
$10.6M
North Reef Capital Management LP
370,982 sh
$10.0M

Congress trades in COSO

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

COSO planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
Bruderer Ernst W.
Filed 2026-10-23
$167.3K
Bruderer Ernst W.
Filed 2026-08-31
$54.9K
Bruderer Ernst W.
Filed 2026-08-26
$55.0K
Bruderer Ernst W.
Filed 2026-08-25
$27.6K
Bruderer Ernst W.
Filed 2026-08-24
$27.9K

COSO mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
RMB Mendon Financial Services Fund
$6.7M position · as of 2026-06-30
2.6%
Ultra-Small Company Market Fund
$400.3K position · as of 2026-06-30
0.3%
State Street(R) SPDR(R) US Small Cap Low Volatility Index ETF
$428.8K position · as of 2026-06-30
0.2%
Goldman Sachs Small Cap Value Fund
$1.0M position · as of 2026-05-31
0.1%
Franklin Small Cap Enhanced ETF
$115.8K position · as of 2026-06-30
0.1%
Hartford Multifactor Small Cap ETF
$46.3K position · as of 2026-07-31
0.1%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $441.2K sold by insiders over 180 days, 67 funds added last quarter, $332.7K in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector by SEC SIC code
UMBFBWFGPBPEBOFMBMGABCNEWTPCBDCOMISBAWSBFJMSB

COSO financials

Revenue growth
+6.4%
XBRL, annual
Net margin
1254.0%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$2.0M
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
+1,357%
net income over revenue, 2025-07-01 to 2026-06-30
Free cash flow, TTM
$67.1M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
n/a
no debt line filed
Cash flow to debt
n/a
no debt line filed
Return on equity
+11.5%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
+1.2%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
n/a
fewer than four consecutive quarters of operating income
Return on capital employed
n/a
fewer than four consecutive quarters of operating income
P/E, trailing
12.42x
close 2026-10-26 over four quarters of diluted EPS, 2025-07-01 to 2026-06-30
Enterprise value
n/a
no debt line filed
FCF yield
+20.3%
TTM free cash flow over market value at close 2026-10-26
PEG, trailing
n/a
trailing EPS growth -5%, PEG needs growth
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-12
Revenue$2.0M$1.9M
Net income$24.9M$21.9M
EPS (diluted)2.162.09
Operating cash flow$63.1M-$12.7M
Buybacks$69.0Kn/a
SEC XBRL, fiscal years, as known on 2026-10-28

COSO Stock Sonar score 5/7 axes

Find similar shapesCompare

COSO ranks highest on risk and compliance (62nd percentile) and profitability (61st), and lowest on institutional and government (31st), among Banks peers.

ProfitGrowthInsidersInstitutionsRisk
Profitability
61
Inputs
  • Return on equity+11.5% · 63 pct, sector of 327
  • Return on assets+1.2% · 59 pct, sector of 334
  • Return on invested capitalfewer than four consecutive quarters of operating income
  • Return on capital employedfewer than four consecutive quarters of operating income
Growth
50
Inputs
  • Revenue growth, YoY+6.4% · 50 pct, sector of 151
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Insider conviction
43
Inputs
  • Net Form 4 buying (codes P and S), 180d-$441K · 39 pct, sector of 274
  • Insider buyers, 180d1 · 46 pct, sector of 274
Institutional and government
31
Inputs
  • Funds adding, latest quarter67 · 31 pct, sector of 257
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
62
Inputs
  • Short interest, % of float+1.8% · 62 pct, sector of 378
  • Recalls per $1B revenue, 3yrevenue under $50M or not filed, so a count cannot be scaled to size
  • EPA cases per $1B revenue, 5yrevenue under $50M or not filed, so a count cannot be scaled to size
  • New text in Risk Factors, latest 10-Kneeds two 10-Ks with a Risk Factors section (not 20-F filers or stubs)
2 not measured: Financial health, US patents
  • Financial health needs 1 of 2 inputs, 0 present: no debt line filed
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

COSO filings, in plain words

Are CoastalSouth Bancshares insiders buying or selling COSO?

In the 180 days to 2026-10-28, CoastalSouth Bancshares insiders were net sellers, a net $441.2K: $9.4K of purchases and $450.6K of sales reported on Form 4, by 1 buyer and 2 sellers.

Are there planned insider sales of COSO?

Yes. 5 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-28, covering $332.7K of stock; the latest, by Bruderer Ernst W., was filed 2026-10-23.

Read the full summary

In the 180 days to 2026-10-28, CoastalSouth Bancshares insiders were net sellers of COSO, a net $441.2K across purchases and sales reported on Form 4 by 1 buyer and 2 sellers. Sales outweighed purchases more than tenfold by value. None of the 6 insider sales was flagged as made under a Rule 10b5-1 plan. Insiders filed 5 Form 144 notices of intent to sell in the 90 days to 2026-10-28, covering $332.7K of stock. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

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