CoastalSouth Bancshares, Inc. (COSO) — Institutional Holders, Q2 2026
101 institutional investment managers reported a COSO position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $184.6M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
COSO in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- TWO SIGMA INVESTMENTSAdded · +308,434 sh+$8.3M
- Qube Research & Technologies LtdNew · +127,213 sh+$3.4M
- ACADIAN ASSET MANAGEMENTAdded · +101,107 sh+$2.7M
- BlackRockAdded · +92,165 sh+$2.5M
- CITADEL ADVISORSNew · +88,947 sh+$2.4M
Biggest sellers
- FourthstoneTrimmed · -875,293 sh-$23.5M
- Patriot Financial Partners GP II, L.P.Trimmed · -467,844 sh-$12.6M
- ENDEAVOUR CAPITAL ADVISORSSold out · -241,595 sh-$6.5M
- GOLDMAN SACHS GROUPTrimmed · -166,611 sh-$4.5M
- MENDON CAPITAL ADVISORSTrimmed · -62,511 sh-$1.7M
COSO 13F holders ranked 1–100 of 101
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Patriot Financial Partners GP II, L.P.#1 · 691,367 sh | 691,367 | $18.6M | 4.74% | -40.4% |
| 2 | BlackRock#2 · 584,198 sh | 584,198 | $15.7M | <0.01% | +18.7% |
| 3 | TWO SIGMA INVESTMENTS#3 · 408,489 sh | 408,489 | $11.0M | <0.01% | +308.3% |
| 4 | VANGUARD CAPITAL MANAGEMENT#4 · 395,093 sh | 395,093 | $10.6M | <0.01% | -2.8% |
| 5 | North Reef Capital Management#5 · 370,982 sh | 370,982 | $10.0M | 0.38% | +15.6% |
| 6 | Berkeley Capital Partners#6 · 356,390 sh | 356,390 | $9.6M | 1.97% | -1.2% |
| 7 | ALLIANCEBERNSTEIN L.P.#7 · 347,546 sh | 347,546 | $8.5M | <0.01% | -12.6% |
| 8 | MENDON CAPITAL ADVISORS#8 · 267,232 sh | 267,232 | $7.2M | 2.54% | -19.0% |
| 9 | RMB Capital Management#9 · 250,001 sh | 250,001 | $6.7M | 0.10% | -17.5% |
| 10 | Fourthstone#10 · 225,211 sh | 225,211 | $6.1M | 4.33% | -79.5% |
| 11 | GEODE CAPITAL MANAGEMENT#11 · 196,340 sh | 196,340 | $5.3M | <0.01% | +2.7% |
| 12 | EJF Capital#12 · 192,676 sh | 192,676 | $5.2M | 3.46% | 0.0% |
| 13 | STATE STREET#13 · 188,361 sh | 188,361 | $5.1M | <0.01% | +49.0% |
| 14 | ACADIAN ASSET MANAGEMENT#14 · 173,846 sh | 173,846 | $4.7M | <0.01% | +139.0% |
| 15 | Qube Research & Technologies Ltd#15 · 127,213 sh | 127,213 | $3.4M | <0.01% | New |
| 16 | RAFFLES ASSOCIATES#16 · 112,138 sh | 112,138 | $3.0M | 2.72% | -7.5% |
| 17 | MORGAN STANLEY#17 · 108,931 sh | 108,931 | $2.9M | <0.01% | +289.8% |
| 18 | KLCM Advisors#18 · 107,617 sh | 107,617 | $2.9M | 0.23% | 0.0% |
| 19 | GOLDMAN SACHS GROUP#19 · 91,528 sh | 91,528 | $2.5M | <0.01% | -64.5% |
| 20 | Bleakley Financial Group#20 · 90,307 sh | 90,307 | $2.4M | 0.03% | +2.5% |
| 21 | CITADEL ADVISORS#21 · 88,947 sh | 88,947 | $2.4M | <0.01% | New |
| 22 | BANC FUNDS#22 · 85,715 sh | 85,715 | $2.3M | 0.38% | 0.0% |
| 23 | FIRST MANHATTAN#23 · 77,638 sh | 77,638 | $2.1M | <0.01% | 0.0% |
| 24 | Elizabeth Park Capital Advisors, Ltd.#24 · 75,740 sh | 75,740 | $2.0M | 1.40% | 0.0% |
| 25 | AQR CAPITAL MANAGEMENT#25 · 70,177 sh | 70,177 | $1.9M | <0.01% | +56.1% |
| 26 | NORTHERN#26 · 65,971 sh | 65,971 | $1.8M | <0.01% | +2.4% |
| 27 | Point72 Asset Management, L.P.#27 · 63,549 sh | 63,549 | $1.7M | <0.01% | New |
| 28 | Trexquant Investment#28 · 63,324 sh | 63,324 | $1.7M | 0.01% | +110.6% |
| 29 | VANGUARD PORTFOLIO MANAGEMENT#29 · 59,973 sh | 59,973 | $1.6M | <0.01% | +12.2% |
| 30 | JPMORGAN CHASE#30 · 59,792 sh | 59,792 | $1.6M | <0.01% | +1502.1% |
| 31 | VANGUARD FIDUCIARY#31 · 53,047 sh | 53,047 | $1.4M | <0.01% | -0.3% |
| 32 | JANE STREET GROUP#32 · 50,345 sh | 50,345 | $1.4M | <0.01% | New |
| 33 | BNP PARIBAS FINANCIAL MARKETS#33 · 48,422 sh | 48,422 | $1.3M | <0.01% | +1910.9% |
| 34 | HRT FINANCIAL#34 · 43,819 sh | 43,819 | $1.2M | <0.01% | New |
| 35 | KENNEDY CAPITAL MANAGEMENT#35 · 42,732 sh | 42,732 | $1.1M | 0.02% | -3.9% |
| 36 | BANK OF AMERICA#36 · 39,688 sh | 39,688 | $1.1M | <0.01% | +147.8% |
| 37 | Nuveen#37 · 39,464 sh | 39,464 | $1.1M | <0.01% | 0.0% |
| 38 | XTX Topco Ltd#38 · 38,845 sh | 38,845 | $1.0M | 0.01% | New |
| 39 | HB Wealth Management#39 · 38,111 sh | 38,111 | $1.0M | — | -1.4% |
| 40 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#40 · 35,622 sh | 35,622 | $956.5K | <0.01% | New |
| 41 | SALZHAUER MICHAEL#41 · 33,046 sh | 33,046 | $887.3K | 0.30% | 0.0% |
| 42 | MILLENNIUM MANAGEMENT#42 · 32,027 sh | 32,027 | $859.9K | <0.01% | +50.3% |
| 43 | Quadrature Capital Ltd#43 · 29,969 sh | 29,969 | $804.7K | <0.01% | New |
| 44 | OCCUDO QUANTITATIVE STRATEGIES#44 · 29,110 sh | 29,110 | $781.6K | 0.04% | +179.2% |
| 45 | D. E. Shaw#45 · 26,090 sh | 26,090 | $700.5K | <0.01% | New |
| 46 | CHARLES SCHWAB INVESTMENT MANAGEMENT#46 · 24,189 sh | 24,189 | $649.5K | <0.01% | -0.1% |
| 47 | Bank of New York Mellon#47 · 21,375 sh | 21,375 | $573.9K | <0.01% | +3.8% |
| 48 | Russell Investments Group, Ltd.#48 · 17,405 sh | 17,405 | $466.9K | <0.01% | +3019.2% |
| 49 | Jump Financial#49 · 15,800 sh | 15,800 | $424.2K | <0.01% | New |
| 50 | BRIDGEWAY CAPITAL MANAGEMENT#50 · 14,909 sh | 14,909 | $400.3K | <0.01% | 0.0% |
| 51 | Man Group plc#51 · 14,767 sh | 14,767 | $396.5K | <0.01% | New |
| 52 | MARSHALL WACE, LLP#52 · 14,128 sh | 14,128 | $379.3K | <0.01% | -42.3% |
| 53 | Centiva Capital#53 · 12,868 sh | 12,868 | $345.5K | <0.01% | +54.4% |
| 54 | WINTON GROUP Ltd#54 · 11,681 sh | 11,681 | $313.6K | 0.01% | New |
| 55 | SEI INVESTMENTS#55 · 11,665 sh | 11,665 | $313.2K | <0.01% | -46.2% |
| 56 | Squarepoint Ops#56 · 10,941 sh | 10,941 | $293.8K | <0.01% | New |
| 57 | FRANKLIN RESOURCES#57 · 10,395 sh | 10,395 | $279.1K | <0.01% | -4.8% |
| 58 | Schonfeld Strategic Advisors#58 · 9,962 sh | 9,962 | $267.5K | <0.01% | New |
| 59 | Walleye Capital#59 · 9,735 sh | 9,735 | $261.4K | <0.01% | New |
| 60 | SUSQUEHANNA FUNDAMENTAL INVESTMENTS#60 · 9,441 sh | 9,441 | $253.5K | <0.01% | New |
| 61 | Virtu Financial#61 · 9,320 sh | 9,320 | $250.0K | <0.01% | New |
| 62 | ALGERT GLOBAL#62 · 8,303 sh | 8,303 | $222.9K | <0.01% | New |
| 63 | WELLS FARGO & COMPANY#63 · 8,281 sh | 8,281 | $222.3K | 0.00% | +32.4% |
| 64 | RHUMBLINE ADVISERS#64 · 8,018 sh | 8,018 | $215.3K | <0.01% | +49.8% |
| 65 | DEUTSCHE BANK AG\#65 · 8,012 sh | 8,012 | $215.1K | <0.01% | +135.4% |
| 66 | ELCO Management#66 · 7,935 sh | 7,935 | $213.1K | — | -34.0% |
| 67 | Y-Intercept (Hong Kong) Ltd#67 · 7,919 sh | 7,919 | $212.6K | — | New |
| 68 | BARCLAYS PLC#68 · 7,793 sh | 7,793 | $209.2K | 0.00% | +36.3% |
| 69 | OSAIC#69 · 7,780 sh | 7,780 | $208.9K | <0.01% | +0.2% |
| 70 | EP Wealth Advisors#70 · 7,564 sh | 7,564 | $203.1K | <0.01% | New |
| 71 | MetLife Investment Management#71 · 5,356 sh | 5,356 | $143.8K | <0.01% | 0.0% |
| 72 | Daytona Street Capital#72 · 5,000 sh | 5,000 | $133.1K | — | 0.0% |
| 73 | CITIGROUP#73 · 4,041 sh | 4,041 | $108.5K | 0.00% | +835.4% |
| 74 | MIRAE ASSET GLOBAL ETFS Ltd.#74 · 3,784 sh | 3,784 | $101.6K | <0.01% | -12.1% |
| 75 | UBS Group AG#75 · 3,639 sh | 3,639 | $97.7K | 0.00% | +15.6% |
| 76 | Vanguard Global Advisers#76 · 2,962 sh | 2,962 | $79.5K | 0.00% | 0.0% |
| 77 | Rockefeller Capital Management L.P.#77 · 2,353 sh | 2,353 | $63.2K | <0.01% | +46.9% |
| 78 | PNC FINANCIAL SERVICES GROUP#78 · 2,125 sh | 2,125 | $57.1K | 0.00% | New |
| 79 | NEW YORK STATE COMMON RETIREMENT FUND#79 · 1,900 sh | 1,900 | $51.0K | <0.01% | 0.0% |
| 80 | Police & Firemen's Retirement System of New Jersey#80 · 1,730 sh | 1,730 | $46.5K | <0.01% | 0.0% |
| 81 | Tower Research Capital (TRC)#81 · 1,053 sh | 1,053 | $28.3K | <0.01% | +86.4% |
| 82 | Legal & General Group Plc#82 · 789 sh | 789 | $21.2K | 0.00% | 0.0% |
| 83 | Ameritas Investment Partners#83 · 752 sh | 752 | $20.2K | <0.01% | 0.0% |
| 84 | ROYAL BANK OF CANADA#84 · 733 sh | 733 | $20.0K | 0.00% | +165.6% |
| 85 | SRS Capital Advisors#85 · 221 sh | 221 | $5.9K | 0.00% | +689.3% |
| 86 | Sterling Capital Management#86 · 166 sh | 166 | $4.5K | — | -39.0% |
| 87 | IFP Advisors#87 · 157 sh | 157 | $4.2K | — | +685.0% |
| 88 | GAMMA Investing#88 · 152 sh | 152 | $4.1K | — | +27.7% |
| 89 | Integrated Wealth Concepts#89 · 99 sh | 99 | $2.7K | 0.00% | New |
| 90 | Allworth Financial#90 · 90 sh | 90 | $2.4K | 0.00% | +309.1% |
| 91 | ROTHSCHILD INVESTMENT#91 · 64 sh | 64 | $1.7K | <0.01% | +100.0% |
| 92 | EverSource Wealth Advisors#92 · 32 sh | 32 | $860.00 | 0.00% | -99.5% |
| 93 | Essential Partners#93 · 24 sh | 24 | $644.00 | — | +118.2% |
| 94 | FMR#94 · 23 sh | 23 | $618.00 | 0.00% | +1050.0% |
| 95 | Basecamp Wealth Advisors#95 · 18 sh | 18 | $483.00 | <0.01% | +28.6% |
| 96 | True Wealth Design#96 · 10 sh | 10 | $269.00 | — | +400.0% |
| 97 | Caitong International Asset Management , Ltd#97 · 10 sh | 10 | $268.00 | 0.00% | New |
| 98 | Farther Finance Advisors#98 · 4 sh | 4 | $107.00 | — | +33.3% |
| 99 | SJS Investment Consulting#99 · 1 sh | 1 | $27.00 | — | New |
| 100 | Covestor Ltd#100 · 16 sh | 16 | $0.00 | 0.00% | -23.8% |
Funds that sold out of COSO in Q2 2026 (4)
Held COSO at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| ENDEAVOUR CAPITAL ADVISORS241,595 sh | 241,595 | $5.9M |
| Ghisallo Capital Management20,000 sh | 20,000 | $491.8K |
| MAI Capital Management80 sh | 80 | $2.0K |
| Root Financial Partners17 sh | 17 | $418.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.