Fourthstone LLC and related entities reported passive ownership of CoastalSouth Bancshares, Inc. common stock. Fourthstone, a registered investment adviser, holds 225,211 shares of common stock on behalf of its advisory clients, representing 1.87% of the class based on 12,035,531 shares outstanding as of May 6, 2026.
The filing is made jointly by Fourthstone LLC, Fourthstone Master Opportunity Fund Ltd., Fourthstone QP Opportunity Fund LP, Fourthstone Small-Cap Financials Fund LP, Fourthstone GP LLC, and L. Phillip Stone IV. The Reporting Persons state that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of CoastalSouth Bancshares, Inc. Voting and dispositive power over the reported shares is shared among the Reporting Persons, with no sole voting or dispositive power reported.
Positive
None.
Negative
None.
Key Figures
Shares beneficially owned by Fourthstone LLC:225,211 sharesFourthstone LLC ownership percentage:1.87%Shares outstanding:12,035,531 shares+3 more
6 metrics
Shares beneficially owned by Fourthstone LLC225,211 sharesCommon stock of CoastalSouth Bancshares, Inc. held on behalf of advisory clients
Fourthstone LLC ownership percentage1.87%Percent of CoastalSouth Bancshares, Inc. common stock class
Shares outstanding12,035,531 sharesCoastalSouth Bancshares, Inc. common stock outstanding as of May 6, 2026
Fourthstone Master Opportunity Fund holding163,145 sharesShared voting and dispositive power over COSO common stock
Fourthstone QP Opportunity Fund holding46,963 sharesShared voting and dispositive power over COSO common stock
Fourthstone Small-Cap Financials Fund holding15,103 sharesShared voting and dispositive power over COSO common stock
"The percentages reported in Row 11 of each cover page are based on 12,035,531 shares... beneficially own"
Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.
shared voting powerfinancial
"Shared Voting Power 225,211.00"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
shared dispositive powerfinancial
"Shared Dispositive Power 225,211.00"
registered investment adviserfinancial
"acquired the Issuer's shares in the ordinary course of business as a registered investment adviser"
A registered investment adviser (RIA) is a firm or individual legally registered with regulators to give personalized investment advice and manage clients' money, with a duty to put clients’ interests ahead of their own. Think of an RIA as a licensed financial guide who must disclose fees, conflicts and how they are paid; that transparency and legal duty matter to investors because it reduces the risk of hidden costs or biased recommendations.
percent of classfinancial
"Percent of class: 1.87 %"
Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.
FAQ
How much of CoastalSouth Bancshares, Inc. (COSO) stock does Fourthstone LLC report owning?
Fourthstone LLC reports beneficial ownership of 225,211 shares of CoastalSouth Bancshares, Inc. common stock. This represents 1.87% of the issuer’s 12,035,531 shares outstanding as of May 6, 2026, held on behalf of advisory clients.
Is Fourthstone LLC seeking to influence control of CoastalSouth Bancshares, Inc. (COSO)?
The Reporting Persons state the shares were not acquired and are not held to change or influence control of CoastalSouth Bancshares, Inc. They indicate the position was acquired in the ordinary course of business as a registered investment adviser.
Which entities are included as Reporting Persons for COSO in this Schedule 13G/A?
Reporting Persons include Fourthstone LLC, Fourthstone Master Opportunity Fund Ltd., Fourthstone QP Opportunity Fund LP, Fourthstone Small-Cap Financials Fund LP, Fourthstone GP LLC, and L. Phillip Stone IV, who is managing member of Fourthstone and Fourthstone GP.
What percentage of CoastalSouth Bancshares, Inc. (COSO) does each Fourthstone-related entity report?
Fourthstone LLC and L. Phillip Stone IV each report 1.87%; Fourthstone Master Opportunity Fund Ltd. reports 1.36%; Fourthstone GP LLC 0.52%; Fourthstone QP Opportunity Fund 0.39%; and Fourthstone Small-Cap Financials Fund 0.13% of COSO common stock.
Does Fourthstone LLC report sole or shared voting power over COSO shares?
The Reporting Persons report 0 shares with sole voting or dispositive power and 225,211 shares with shared voting and dispositive power. This means authority over these shares is held jointly among the Reporting Persons rather than individually.
On what share count is Fourthstone’s COSO ownership percentage based?
The reported ownership percentages are based on 12,035,531 shares of CoastalSouth Bancshares, Inc. common stock outstanding as of May 6, 2026, as stated in the issuer’s Form 10-Q filed on May 8, 2026.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 2)
CoastalSouth Bancshares, Inc.
(Name of Issuer)
Common Stock, par value $1.00 per share
(Title of Class of Securities)
19058X207
(CUSIP Number)
06/30/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
19058X207
1
Names of Reporting Persons
Fourthstone LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
225,211.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
225,211.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
225,211.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.87 %
12
Type of Reporting Person (See Instructions)
IA
Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).
SCHEDULE 13G
CUSIP Number(s):
19058X207
1
Names of Reporting Persons
Fourthstone Master Opportunity Fund Ltd
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
CAYMAN ISLANDS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
163,145.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
163,145.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
163,145.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.36 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).
SCHEDULE 13G
CUSIP Number(s):
19058X207
1
Names of Reporting Persons
Fourthstone GP LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
62,066.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
62,066.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
62,066.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.52 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).
SCHEDULE 13G
CUSIP Number(s):
19058X207
1
Names of Reporting Persons
Fourthstone QP Opportunity Fund LP
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
46,963.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
46,963.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
46,963.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.39 %
12
Type of Reporting Person (See Instructions)
PN
Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).
SCHEDULE 13G
CUSIP Number(s):
19058X207
1
Names of Reporting Persons
Fourthstone Small-Cap Financials Fund LP
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
15,103.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
15,103.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
15,103.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.13 %
12
Type of Reporting Person (See Instructions)
PN
Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).
SCHEDULE 13G
CUSIP Number(s):
19058X207
1
Names of Reporting Persons
L. Phillip Stone, IV
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
225,211.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
225,211.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
225,211.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.87 %
12
Type of Reporting Person (See Instructions)
IN
Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
CoastalSouth Bancshares, Inc.
(b)
Address of issuer's principal executive offices:
400 Galleria Parkway Suite 1900 Atlanta, Georgia 30339
Item 2.
(a)
Name of person filing:
This Schedule 13G is being filed by Fourthstone LLC, a Delaware Limited Liability Company and Investment Adviser ("Fourthstone"). The persons reporting information on this Schedule 13G include, in addition to Fourthstone, a company incorporated in the Cayman Islands ("Fourthstone Master Opportunity Fund"), a Delaware Limited Partnership ("Fourthstone QP Opportunity"), a Delaware Limited Partnership ("Fourthstone Small-Cap Financials"), a Delaware Limited Liability Company ("Fourthstone GP, " General Partner of Fourthstone QP Opportunity and Fourthstone Small-Cap Financials), and L. Phillip Stone, IV, a citizen of the United States of America, who is the Managing Member of Fourthstone and Fourthstone GP (each, a "Reporting Person" and, together, the "Reporting Persons"). Fourthstone directly holds 225,211 shares of Common Stock on behalf of its advisory clients. Each of the Reporting Persons listed in this filing certify the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the Issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that effect.
(b)
Address or principal business office or, if none, residence:
The principal business address of each of the Reporting Persons is as follows: The registered office of Fourthstone LLC, Fourthstone Master Opportunity Fund Ltd., Fourthstone GP LLC, Fourthstone QP Opportunity Fund LP, Fourthstone Small-Cap Financials Fund LP is 575 Maryville Centre Drive, Suite 110, St. Louis, MO 63141.
(c)
Citizenship:
See response to Item 4 of each of the cover pages.
(d)
Title of class of securities:
Common Stock, par value $1.00 per share
(e)
CUSIP No.:
19058X207
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
Fourthstone LLC acquired the Issuer's shares in the ordinary course of business as a registered investment adviser and not with the purpose nor with the effect of influencing the control of the Issuer. Fourthstone GP LLC is the general partner of and may be deemed to beneficially own securities owned by Fourthstone QP Opportunity Fund LP and Fourthstone Small-Cap Financials Fund LP. L. Phillip Stone, IV, is the Managing Member of Fourthstone LLC and Fourthstone GP and may be deemed to beneficially own securities owned by Fourthstone. The percentages reported in Row 11 of each cover page are based on 12,035,531 shares of Common Stock (as defined below) of the Issuer (as defined below) outstanding as of May 6, 2026, based on the Issuer's Form 10-Q filed on May 8, 2026.
(b)
Percent of class:
1.87 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
See responses to Item 5 on each cover page.
(ii) Shared power to vote or to direct the vote:
See responses to Item 6 on each cover page.
(iii) Sole power to dispose or to direct the disposition of:
See responses to Item 7 on each cover page.
(iv) Shared power to dispose or to direct the disposition of:
See responses to Item 8 on each cover page.
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
