COSO · CoastalSouth Bancshares, Inc.

$27.35 -0.19 (-0.69%) At close · Aug 26

Market Cap

$329.23M

11.95M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Quarter:

Holders: 99

Total Value: $185,162,474

Total Shares: 6,896,184

Institutional Ownership Trend

23 quarters

Holder Concentration

Across 99 13F filers · Δ vs Mar 31, 2026

Top Holder

10.0%

−5.8 pts

Top 5

35.5%

−13.1 pts

Top 10

56.5%

−13.7 pts

HHI

421

Broadly held−302

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +16

Institutional value: +3.0%

Shares held: -5.7%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega TWO SIGMA INVESTMENTS, LP	+308,434	408,489
Large ACADIAN ASSET MANAGEMENT LLC	+101,107	173,846
Mega BlackRock, Inc.	+92,165	584,198
Mega MORGAN STANLEY	+80,983	108,931
Mega STATE STREET CORP	+61,921	188,361

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small Fourthstone LLC	−875,293	225,211
Small Patriot Financial Partners GP II, L.P.	−467,844	691,367
Mega GOLDMAN SACHS GROUP INC	−166,611	91,528
Small MENDON CAPITAL ADVISORS CORP	−62,511	267,232
Mid Curi Capital, LLC	−52,950	250,001

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega Qube Research & Technologies Ltd	127,213	$3,415,669
Mega CITADEL ADVISORS LLC	88,947	$2,388,226
Large Point72 Asset Management, L.P.	63,549	$1,706,290
Mega JANE STREET GROUP, LLC	50,345	$1,351,763
Large HRT FINANCIAL LP	43,819	$1,176,540

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small ENDEAVOUR CAPITAL ADVISORS INC	241,595	$5,940,821
Mid Ghisallo Capital Management LLC	20,000	$491,800
Micro ELCO Management Co., LLC	12,031	$295,842
Large CWM, LLC	618	$15,196
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	506	$12,442

Filter: New 24 Increased 41 Reduced 19 Sold out 8 Unchanged 15

Showing 99 of 99

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Patriot Financial Partners GP II, L.P.

$18,563,203

10.03%

691,367

BlackRock, Inc.

$15,685,714

8.47%

584,198

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	1,917	$51,471	0.3%	Sole
BlackRock Investment Management, LLC	25,769	$691,897	4.4%	Sole
BLACKROCK ADVISORS LLC	18,065	$485,045	3.1%	Sole
BlackRock Fund Advisors	330,313	$8,868,904	56.5%	Sole
BlackRock Institutional Trust Company, N.A.	208,132	$5,588,344	35.6%	Sole
Aperio Group, LLC	2	$53	0.0%	Sole

TWO SIGMA INVESTMENTS, LP

$10,967,929

5.92%

408,489

VANGUARD CAPITAL MANAGEMENT LLC

$10,608,247

5.73%

395,093

North Reef Capital Management LP

$9,960,866

5.38%

370,982

Berkeley Capital Partners, LLC

$9,569,071

5.17%

356,390

ALLIANCEBERNSTEIN L.P.

$9,331,610

5.04%

347,546

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	347,546	$9,331,610	100.0%	Defined

MENDON CAPITAL ADVISORS CORP

$7,175,178

3.88%

267,232

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ELCO Management Co., LLC	7,935	$213,054	3.0%	Sole
Hurricane Capital Partners Ltd	9,297	$249,624	3.5%	Sole
Held directly	250,000	$6,712,500	93.6%	Sole

Curi Capital, LLC

$6,712,526

3.63%

250,001

Fourthstone LLC

$6,046,915

3.27%

225,211

GEODE CAPITAL MANAGEMENT, LLC

$5,271,728

2.85%

196,340

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	29,070	$780,529	14.8%	Defined
Held directly	167,270	$4,491,199	85.2%	Defined

EJF Capital LP

$5,173,350

2.79%

192,676

STATE STREET CORP

$5,057,492

2.73%

188,361

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	188,361	$5,057,492	100.0%	Defined

ACADIAN ASSET MANAGEMENT LLC

$4,667,765

2.52%

173,846

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	173,846	$4,667,765	100.0%	Defined

Qube Research & Technologies Ltd

$3,415,669

1.84%

127,213

RAFFLES ASSOCIATES LP

$3,010,905

1.63%

112,138

MORGAN STANLEY

$2,924,795

1.58%

108,931

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	1,215	$32,622	1.1%	Defined
MORGAN STANLEY & CO. LLC	2,499	$67,098	2.3%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	98,094	$2,633,823	90.1%	Defined
MORGAN STANLEY SMITH BARNEY LLC	5,260	$141,231	4.8%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	1,863	$50,021	1.7%	Defined

KLCM Advisors, Inc.

$2,889,516

1.56%

107,617

GOLDMAN SACHS GROUP INC

$2,457,526

1.33%

91,528

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	36,925	$991,436	40.3%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	54,603	$1,466,090	59.7%	Defined

Bleakley Financial Group, LLC

$2,424,742

1.31%

90,307

CITADEL ADVISORS LLC

$2,388,226

1.29%

88,947

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	30,780	$826,443	34.6%	Defined
Held directly	58,167	$1,561,783	65.4%	Defined

BANC FUNDS CO LLC

$2,301,447

1.24%

85,715

FIRST MANHATTAN CO. LLC.

$2,084,580

1.13%

77,638

Elizabeth Park Capital Advisors, Ltd.

$2,033,619

1.10%

75,740

AQR CAPITAL MANAGEMENT LLC

$1,884,250

1.02%

70,177

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Prism Planning Partners LLC	31	$832	0.0%	Other
Arax Advisory Partners	233	$6,256	0.3%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	208	$5,584	0.3%	Other
Stokes Family Office, LLC	4	$107	0.0%	Other
Held directly	69,701	$1,871,471	99.3%	Defined

NORTHERN TRUST CORP

$1,771,320

0.96%

65,971

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	64,684	$1,736,765	98.0%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	1,287	$34,555	2.0%	Other

Point72 Asset Management, L.P.

$1,706,290

0.92%

63,549

Trexquant Investment LP

$1,700,249

0.92%

63,324

VANGUARD PORTFOLIO MANAGEMENT LLC

$1,610,275

0.87%

59,973

JPMORGAN CHASE & CO

$1,605,414

0.87%

59,792

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	3,406	$91,451	5.7%	Defined
J.P. Morgan Investment Management Inc.	3	$80	0.0%	Defined
J.P. Morgan Securities LLC	56,383	$1,513,883	94.3%	Defined

VANGUARD FIDUCIARY TRUST CO

$1,424,311

0.77%

53,047

JANE STREET GROUP, LLC

$1,351,763

0.73%

50,345

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	30,779	$826,416	61.1%	Defined
Jane Street Global Trading, LLC	19,566	$525,347	38.9%	Defined

BNP PARIBAS ARBITRAGE, SA

$1,300,130

0.70%

48,422

HRT FINANCIAL LP

$1,176,540

0.64%

43,819

KENNEDY CAPITAL MANAGEMENT LLC

$1,147,354

0.62%

42,732

BANK OF AMERICA CORP /DE/

$1,065,622

0.58%

39,688

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	39,688	$1,065,622	100.0%	Defined

Nuveen, LLC

$1,059,607

0.57%

39,464

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	4,176	$112,125	10.6%	Defined
TIAA CREF INVESTMENT MANAGEMENT LLC joint	25,372	$681,238	64.3%	Defined
TEACHERS ADVISORS, LLC joint	9,916	$266,244	25.1%	Defined

XTX Topco Ltd

$1,042,988

0.56%

38,845

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	38,845	$1,042,988	100.0%	Defined

HB Wealth Management, LLC

$1,023,280

0.55%

38,111

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

$956,450

0.52%

35,622

SALZHAUER MICHAEL

$887,285

0.48%

33,046

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Salzhauer Henry	33,046	$887,285	100.0%	Other

MILLENNIUM MANAGEMENT LLC

$859,924

0.46%

32,027

Quadrature Capital Ltd

$804,667

0.43%

29,969

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	29,969	$804,667	100.0%	Other

OCCUDO QUANTITATIVE STRATEGIES LP

$781,603

0.42%

29,110

D. E. Shaw & Co., Inc.

$700,516

0.38%

26,090

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	26,090	$700,516	100.0%	Defined

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$649,474

0.35%

24,189

Bank of New York Mellon Corp

$573,917

0.31%

21,375

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	7,662	$205,724	35.8%	Defined
The Bank of New York Mellon	13,712	$368,167	64.1%	Defined
Held directly	1	$26	0.0%	Defined

Russell Investments Group, Ltd.

$467,322

0.25%

17,405

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	4,944	$132,745	28.4%	Defined
Russell Investments Limited joint	12,461	$334,577	71.6%	Other

Jump Financial, LLC

$424,230

0.23%

15,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Leap GP LLC joint	15,800	$424,230	100.0%	Defined

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$400,306

0.22%

14,909

Man Group plc

$396,493

0.21%

14,767

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	14,767	$396,493	100.0%	Defined

MARSHALL WACE, LLP

$379,336

0.20%

14,128

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	14,128	$379,336	100.0%	Other

Centiva Capital, LP

$345,505

0.19%

12,868

WINTON GROUP Ltd

$313,634

0.17%

11,681

SEI INVESTMENTS CO

$313,205

0.17%

11,665

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI TRUST CO	11,665	$313,205	100.0%	Sole

Squarepoint Ops LLC

$293,765

0.16%

10,941

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	10,941	$293,765	100.0%	Defined

FRANKLIN RESOURCES INC

$279,105

0.15%

10,395

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fiduciary Trust International of the South	6,083	$163,328	58.5%	Defined
FRANKLIN ADVISERS INC	4,312	$115,777	41.5%	Defined

Schonfeld Strategic Advisors LLC

$267,479

0.14%

9,962

Walleye Capital LLC

$261,384

0.14%

9,735

SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC

$253,490

0.14%

9,441

Virtu Financial LLC

$250,242

0.14%

9,320

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	9,320	$250,242	100.0%	Defined

ALGERT GLOBAL LLC

$222,935

0.12%

8,303

WELLS FARGO & COMPANY/MN

$222,344

0.12%

8,281

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	6,881	$184,754	83.1%	Defined
WELLS FARGO CLEARING SERVICES, LLC	1,400	$37,590	16.9%	Defined

RHUMBLINE ADVISERS

$215,283

0.12%

8,018

DEUTSCHE BANK AG\

$215,122

0.12%

8,012

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS Investments UK Ltd	8,012	$215,122	100.0%	Defined

Y-Intercept (Hong Kong) Ltd

$212,625

0.11%

7,919

BARCLAYS PLC

$209,241

0.11%

7,793

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	7,758	$208,302	99.6%	Defined
BARCLAYS CAPITAL INC.	35	$939	0.4%	Defined

OSAIC HOLDINGS, INC.

$208,893

0.11%

7,780

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	7,780	$208,893	100.0%	Defined

EP Wealth Advisors, LLC

$203,093

0.11%

7,564

MetLife Investment Management, LLC

$143,808

0.08%

5,356

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	5,356	$143,808	100.0%	Defined

Daytona Street Capital LLC

$134,250

0.07%

5,000

CITIGROUP INC

$108,499

0.06%

4,041

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	4,041	$108,499	100.0%	Defined

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$101,600

0.05%

3,784

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	3,784	$101,600	100.0%	Defined

UBS Group AG

$97,706

0.05%

3,639

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	32	$859	0.9%	Defined
UBS AG	3,607	$96,847	99.1%	Defined

Vanguard Global Advisers, LLC

$79,529

0.04%

2,962

Rockefeller Capital Management L.P.

$63,178

0.03%

2,353

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	2,353	$63,178	100.0%	Defined

PNC FINANCIAL SERVICES GROUP, INC.

$57,056

0.03%

2,125

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	2,125	$57,056	100.0%	Defined

NEW YORK STATE COMMON RETIREMENT FUND

$51,015

0.03%

1,900

Police & Firemen's Retirement System of New Jersey

$46,450

0.03%

1,730

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Capital	1,730	$46,450	100.0%	Defined

Tower Research Capital LLC (TRC)

$28,273

0.02%

1,053

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	1,053	$28,273	100.0%	Defined

Legal & General Group Plc

$21,184

0.01%

789

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	789	$21,184	100.0%	Defined

Ameritas Investment Partners, Inc.

$20,191

0.01%

752

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
EATON VANCE MANAGEMENT	752	$20,191	100.0%	Other

ROYAL BANK OF CANADA

$19,679

0.01%

733

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	243	$6,524	33.2%	Defined
RBC Capital Markets, LLC	489	$13,129	66.7%	Defined
Held directly	1	$26	0.1%	Sole

Arax Advisory Partners

$5,933

0.00%

221

Sterling Capital Management LLC

$4,457

0.00%

166

IFP Advisors, Inc

$4,215

0.00%

157

GAMMA Investing LLC

$4,081

0.00%

152

Integrated Wealth Concepts LLC

$2,658

0.00%

Allworth Financial LP

$2,416

0.00%

ROTHSCHILD INVESTMENT LLC

$1,718

0.00%

EverSource Wealth Advisors, LLC

$856

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BMSS Wesson Wealth Solutions, LLC	6	$160	18.7%	Sole
Held directly	26	$696	81.3%	Sole

Essential Partners LLC

$644

0.00%

FMR LLC

$617

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	23	$617	100.0%	Defined

Basecamp Wealth Advisors LLC

$483

0.00%

Covestor Ltd

$429

0.00%

Caitong International Asset Management Co., Ltd

$268

0.00%

True Wealth Design, LLC

$268

0.00%

Farther Finance Advisors, LLC

$107

0.00%

SJS Investment Consulting Inc.

$26

0.00%

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