Save your place

Sign in to WhoBought

Please try again later.

CoastalSouth Bancshares, Inc. (COSO) institutional ownership

Latest close $26.70 Jul 20, 2026
Market cap$245M 52-week range SectorFinancial Services
Funds holding · Q1 2026
72
reported COSO position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
55 buyers · 17 sellers

CoastalSouth Bancshares, Inc. (COSO) price and institutional activity

Dates

Q1 2026

$0 bought by 55 investors
Patriot Financial Partners Gp Ii, L.P.Vanguard +53 more
$0 sold by 17 investors
Ejf Capital LPAzora Capital LP +15 more
Sign in to see who bought
Bought Sold Totals per quarter; hover a bar for the names.

CoastalSouth Bancshares, Inc. (COSO) institutional activity · 72

Investor Type Est. change Change Δ Own Date
Ejf Capital LP · Reduced
Change −737K Date Q1 2026
Ejf Capital LP Reduced· Q1 2026 −737K Q1 2026
Patriot Financial Partners Gp Ii, L.P. · Added
Change +440K Date Q1 2026
Patriot Financial Partners Gp Ii, L.P. Added· Q1 2026 +440K Q1 2026
Azora Capital LP · Exited
Change −309K Δ Own −100.0% Date Q1 2026
Azora Capital LP Exited· Q1 2026 −309K −100.0% Q1 2026
Vanguard · Added
Change +282K Date Q1 2026
Vanguard Added· Q1 2026 +282K Q1 2026
BlackRock · Added
Change +168K Date Q1 2026
BlackRock Added· Q1 2026 +168K Q1 2026
Fourthstone LLC · Added
Change +141K Date Q1 2026
Fourthstone LLC Added· Q1 2026 +141K Q1 2026
Two Sigma Investments, LP · New
Change +100K Date Q1 2026
Two Sigma Investments, LP New· Q1 2026 +100K Q1 2026
Endeavour Capital Advisors Inc · Reduced
Change −95K Date Q1 2026
Endeavour Capital Advisors Inc Reduced· Q1 2026 −95K Q1 2026
State Street · Added
Change +87K Date Q1 2026
State Street Added· Q1 2026 +87K Q1 2026
Mendon Capital Advisors Corp · Added
Change +64K Date Q1 2026
Mendon Capital Advisors Corp Added· Q1 2026 +64K Q1 2026
Acadian Asset Management LLC · Added
Change +60K Date Q1 2026
Acadian Asset Management LLC Added· Q1 2026 +60K Q1 2026
Curi Capital, LLC · Added
Change +59K Date Q1 2026
Curi Capital, LLC Added· Q1 2026 +59K Q1 2026
North Reef Capital Management LP · Added
Change +57K Date Q1 2026
North Reef Capital Management LP Added· Q1 2026 +57K Q1 2026
AQR Capital Management LLC · New
Change +45K Date Q1 2026
AQR Capital Management LLC New· Q1 2026 +45K Q1 2026
Geode · Added
Change +44K Date Q1 2026
Geode Added· Q1 2026 +44K Q1 2026
Data through Q1 2026 · filed May 21, 2026
15 of 72

Famous investor activity in CoastalSouth Bancshares, Inc. (COSO)

CoastalSouth Bancshares, Inc. (COSO) activist and large shareholders

What are Schedules 13D and 13G?

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Fourthstone LLC 1.1M
% of shares outstanding 9.2% Filing date May 15, 2026
Fourthstone LLC 1.1M 9.2% May 15, 2026
Patriot Financial Partners Ii, L.P. 612K
% of shares outstanding 5.1% Filing date May 6, 2026
Patriot Financial Partners Ii, L.P. 612K 5.1% May 6, 2026
Ejf Capital LP 193K
% of shares outstanding 1.6% Filing date May 28, 2026
Ejf Capital LP 193K 1.6% May 28, 2026
3 of 3

CoastalSouth Bancshares, Inc. (COSO) ownership FAQ

Who owns COSO?

72 reporting institutions disclosed COSO position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.