CoastalSouth Bancshares, Inc.

COSO

Exchange: NYSE
Industry: State Commercial Banks
SEC CIK: 0001297107

SEC filings (opens in a new tab)

In the last 90 days, CoastalSouth Bancshares, Inc. insiders filed 1 open-market purchase and 4 sales; 100 institutions reported holding it in 13F filings for Q2 2026, worth $184.6M in total; no superinvestor holds it.

Key figures

Market capClose on Nov 13, 2026: $336.1M
Insider buysLast 90 days, $9.35K in total: 1
Insider sellsLast 90 days, $305.2K in total: 4
13F holdersQ2 2026, +19 vs. previous quarter: 100
13F valueReported value at the end of Q2 2026: $184.6M
Superinvestors holdingAt the end of Q2 2026: 0

Price chart

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Financials

See financial statements

From SEC filings, in USD.

Revenue, FY2025: $1.99M; No comparable prior period
Net income, FY2025: $24.9M; No comparable prior period
Free cash flow, FY2025: $61.3M; No comparable prior period
Revenue, Q3 FY2026: $623.0K; +34.3% year over year

Short interest

See short data

From FINRA, settlement date Oct 30, 2026.

Short interest: 113.9K; Shares sold short
Change: −13.2K; −10.4% vs. previous
Days to cover: 1.57; At average daily volume

Superinvestors holding COSO, Q2 2026

Go to the superinvestors tab

No superinvestor reported holding COSO at the end of Q2 2026.

Latest insider trades

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Open-market purchases and sales by CoastalSouth Bancshares, Inc. insiders from Form 4, newest first.

Insider trades
Filed (ET)	Trade date	Filing delay	Insider	Transaction	Shares	Avg price	Value	Holding change	Flags
Oct 26, 2026 (view filing)9:16 AM ET	Oct 23	3 days	Bruderer Ernst W.Director	SSale	−6.00K	$27.92	−$167.5K	−14.6%35.1K after
Sep 14, 2026 (view filing)4:12 PM ET	Aug 6-7	39 daysLate	Macleod James SDirector	PPurchase	+334	$27.99	+$9.35K	+0.2%201.6K after	2 lots
Aug 31, 2026 (view filing)4:48 PM ET	Aug 31	Same day	Bruderer Ernst W.Director	SSale	−2.00K	$27.43	−$54.9K	−4.6%41.1K after
Aug 26, 2026 (view filing)4:54 PM ET	Aug 26	Same day	Bruderer Ernst W.Director	SSale	−2.00K	$27.50	−$55.0K	−4.4%43.1K after
Aug 18, 2026 (view filing)4:15 PM ET	Aug 18	Same day	Bruderer Ernst W.Director	SSale	−1.00K	$27.89	−$27.9K	−2.2%45.1K after
Aug 13, 2026 (view filing)5:00 PM ET	Aug 12	1 day	Bruderer Ernst W.Director	SSale	−1.00K	$27.56	−$27.6K	−2.1%46.1K after	10b5-1
May 6, 2026 (view filing)	May 6	Same day	Valduga Anthony P.CFO AND COO	SSale	−4.56K	$25.84	−$117.8K	−5.0%86.1K after
Mar 9, 2026 (view filing)	Mar 9	Same day	Stone Stephen R.PRESIDENT AND CEO	PPurchase	+200	$24.15	+$4.83K	+0.2%120.4K after
Feb 12, 2026 (view filing)	Feb 10	2 days	High Michael BDirector	PPurchase	+1.50K	$25.14	+$37.7K	New position1.50K after
Jul 7, 2025 (view filing)	Jul 2	5 days	Macleod James SDirector	PPurchase	+10.0K	$21.50	+$215.0K	New position10.0K after

Top 10 13F holders, Q2 2026

See all 100 holders

The largest institutional positions in CoastalSouth Bancshares, Inc. at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding COSO in Q2 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Patriot Financial Partners GP II, L.P.	691,367	$18.6M	4.74%	−467,844−40.4%	Reduced
BlackRock, Inc.	584,198	$15.7M	0.00%	+92,165+18.7%	Added
Two Sigma Investments, LP	408,489	$11.0M	0.01%	+308,434+308.3%	Added
Vanguard Capital Management LLC	395,093	$10.6M	0.00%	−11,334−2.8%	Reduced
North Reef Capital Management LP	370,982	$9.96M	0.38%	+50,000+15.6%	Added
Berkeley Capital Partners, LLC	356,390	$9.57M	1.97%	−4,172−1.2%	Reduced
Alliancebernstein L.P.	347,546	$8.55M	0.00%	−50,027−12.6%	Reduced
Mendon Capital Advisors Corp	267,232	$7.18M	2.54%	−62,511−19.0%	Reduced
RMB Capital Management, LLC	250,001	$6.71M	0.10%	−52,950−17.5%	Reduced
Fourthstone LLC	225,211	$6.09M	4.33%	−875,293−79.5%	Reduced