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
Bought Sold Totals per quarter; hover a bar for the names.

CoastalSouth Bancshares, Inc. (COSO) institutional activity · 17

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
Azora Capital LP · Exited
Change −309K Δ Own −100.0% Date Q1 2026
Azora Capital LP Exited· Q1 2026 −309K −100.0% Q1 2026
Endeavour Capital Advisors Inc · Reduced
Change −95K Date Q1 2026
Endeavour Capital Advisors Inc Reduced· Q1 2026 −95K Q1 2026
Citadel Advisors LLC Exited· Q1 2026 −42K −100.0% Q1 2026
Marshall Wace, LLP · Reduced
Change −28K Date Q1 2026
Marshall Wace, LLP Reduced· Q1 2026 −28K Q1 2026
Alliancebernstein L.P. · Reduced
Change −27K Date Q1 2026
Alliancebernstein L.P. Reduced· Q1 2026 −27K Q1 2026
UBS Group AG · Reduced
Change −22K Date Q1 2026
UBS Group AG Reduced· Q1 2026 −22K Q1 2026
Jane Street Group, LLC · Exited
Change −13K Δ Own −100.0% Date Q1 2026
Jane Street Group, LLC Exited· Q1 2026 −13K −100.0% Q1 2026
Quadrature Capital Ltd · Exited
Change −10K Δ Own −100.0% Date Q1 2026
Quadrature Capital Ltd Exited· Q1 2026 −10K −100.0% Q1 2026
Barclays PLC · Reduced
Change −6K Date Q1 2026
Barclays PLC Reduced· Q1 2026 −6K Q1 2026
Berkeley Capital Partners, LLC · Reduced
Change −5K Date Q1 2026
Berkeley Capital Partners, LLC Reduced· Q1 2026 −5K Q1 2026
Los Angeles Capital Management LLC · Exited
Change −5K Δ Own −100.0% Date Q1 2026
Los Angeles Capital Management LLC Exited· Q1 2026 −5K −100.0% Q1 2026
Wells Fargo & Company · Reduced
Change −3K Date Q1 2026
Wells Fargo & Company Reduced· Q1 2026 −3K Q1 2026
Royal Bank of Canada · Reduced
Change −369 Date Q1 2026
Royal Bank of Canada Reduced· Q1 2026 −369 Q1 2026
Amalgamated Bank · Exited
Change −172 Δ Own −100.0% Date Q1 2026
Amalgamated Bank Exited· Q1 2026 −172 −100.0% Q1 2026
Data through Q1 2026 · filed May 21, 2026
15 of 17

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

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

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.