COSO
CoastalSouth Bancshares, Inc.Company with tickers: COSO
CIK
1297107
CUSIP
19058X207
Shares Outstanding
12,035,531
Price History
Institutional Holders
Short Volume
Short Interest
Fails to Deliver
Financials
SEC Filings
Earnings Calls
Insider Trades
Congressional Trades
Holders: 30
Total Value: $58,696,927
Total Shares: 2,387,025
Institutional Ownership Trend
Holder Concentration
Across 30 13F filers · Δ vs Dec 31, 2025Top Holder
48.6%
−51.4 pts
Top 5
88.9%
−11.1 pts
Top 10
98.0%
−2.0 pts
HHI
2,929
Highly concentrated
−7,071
Quarterly Activity
vs Dec 31, 2025
New
29
Increased
1
Decreased
0
Sold Out
1
Unchanged
0
Holder count:
+28
Institutional value:
+954.0%
Shares held:
+896.5%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds |
|---|---|---|
| Small Essential Partners LLC | +3 | 11 |
Top Sellers
vs Dec 31, 2025No qualifying movers this quarter.
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) |
|---|---|---|
| Small Patriot Financial Partners GP II, L.P. | 1,159,211 | $28,504,998 |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 406,427 | $9,994,039 |
| Small Berkeley Capital Partners, LLC | 360,562 | $8,866,219 |
| Mid KLCM Advisors, Inc. | 107,617 | $2,646,302 |
| Mid Bleakley Financial Group, LLC | 88,136 | $2,167,264 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) |
|---|---|---|
| Mega GOLDMAN SACHS GROUP INC | 239,526 | $5,568,979 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Action | |
|---|---|---|---|---|---|---|---|---|
| Small Patriot Financial Partners GP II, L.P. | $28,504,998 | 48.56% | 1,159,211 | Shares | Sole | 2026-05-06 | View | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $9,994,039 | 17.03% | 406,427 | Shares | Defined | 2026-05-08 | View | |
| Small Berkeley Capital Partners, LLC | $8,866,219 | 15.11% | 360,562 | Shares | Sole | 2026-05-07 | View | |
| Mid KLCM Advisors, Inc. | $2,646,302 | 4.51% | 107,617 | Shares | Sole | 2026-04-30 | View | |
| Mid Bleakley Financial Group, LLC | $2,167,264 | 3.69% | 88,136 | Shares | Sole | 2026-05-04 | View | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC | $1,313,819 | 2.24% | 53,429 | Shares | Defined | 2026-05-08 | View | |
| Mega VANGUARD FIDUCIARY TRUST CO | $1,308,778 | 2.23% | 53,224 | Shares | Defined | 2026-05-08 | View | |
| Mega Nuveen, LLC | $970,418 | 1.65% | 39,464 | Shares | Defined | 2026-04-30 | View | |
| Mid HB Wealth Management, LLC | $950,231 | 1.62% | 38,643 | Shares | Sole | 2026-04-27 | View | |
| Small SALZHAUER MICHAEL | $812,601 | 1.38% | 33,046 | Shares | Other | 2026-05-05 | View | |
| Mega Bank of New York Mellon Corp | $506,330 | 0.86% | 20,591 | Shares | Defined | 2026-05-05 | View | |
| Mega WELLS FARGO & COMPANY/MN | $153,810 | 0.26% | 6,255 | Shares | Defined | 2026-05-11 | View | |
| Small Daytona Street Capital LLC | $122,950 | 0.21% | 5,000 | Shares | Sole | 2026-04-10 | View | |
| Mega DEUTSCHE BANK AG\ | $83,679 | 0.14% | 3,403 | Shares | Defined | 2026-05-06 | View | |
| Mega UBS Group AG | $77,433 | 0.13% | 3,149 | Shares | Defined | 2026-05-05 | View | |
| Mega Vanguard Global Advisers, LLC | $72,835 | 0.12% | 2,962 | Shares | Defined | 2026-05-08 | View | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $46,721 | 0.08% | 1,900 | Shares | Sole | 2026-05-06 | View | |
| Large Police & Firemen's Retirement System of New Jersey | $42,540 | 0.07% | 1,730 | Shares | Defined | 2026-04-29 | View | |
| Mega Legal & General Group Plc | $19,401 | 0.03% | 789 | Shares | Defined | 2026-05-08 | View | |
| Large Russell Investments Group, Ltd. | $13,720 | 0.02% | 558 | Shares | Defined | 2026-05-08 | View | |
| Mega CITIGROUP INC | $10,622 | 0.02% | 432 | Shares | Defined | 2026-05-11 | View | |
| Mid Sterling Capital Management LLC | $6,688 | 0.01% | 272 | Shares | Sole | 2026-04-22 | View | |
| Mid GAMMA Investing LLC | $2,926 | 0.00% | 119 | Shares | Defined | 2026-04-06 | View | |
| Mid ROTHSCHILD INVESTMENT LLC | $786 | 0.00% | 32 | Shares | Sole | 2026-05-07 | View | |
| Small Covestor Ltd | $516 | 0.00% | 21 | Shares | Sole | 2026-05-05 | View | |
| Mid IFP Advisors, Inc | $491 | 0.00% | 20 | Shares | Sole | 2026-04-13 | View | |
| Small Root Financial Partners, LLC | $418 | 0.00% | 17 | Shares | Sole | 2026-04-24 | View | |
| Small Essential Partners LLC | $270 | 0.00% | 11 | Shares | Sole | 2026-05-21 | View | |
| Mid Farther Finance Advisors, LLC | $73 | 0.00% | 3 | Shares | Sole | 2026-04-07 | View | |
| Micro True Wealth Design, LLC | $49 | 0.00% | 2 | Shares | Sole | 2026-04-13 | View | |
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