Sun Country Airlines Holdings, Inc. Schedule 13G/A (Amendment No. 3) reports beneficial ownership information for Ameriprise Financial, Inc. (AFI) and Columbia Management Investment Advisers, LLC (CMIA). The filing lists Shared Voting Power 84,781 and Shared Dispositive Power 92,082 and states a 0.2% ownership of the class. AFI, as CMIA's parent, includes the shares reported by CMIA and both entities disclaim beneficial ownership of the shares reported on this Schedule. The cover references CUSIP 866683105 and shows signature dates of 05/15/2026.
The filing documents passive beneficial ownership by a registered investment manager and its parent, with 92,082 shares listed under shared dispositive power and 0.2% of the class. The report follows Schedule 13G/A format for passive investors rather than an active Section 13D disclosure.
Key dependencies include the parent/subsidiary attribution in the filing and the explicit disclaimer of beneficial ownership by AFI and CMIA. Subsequent filings would disclose any material changes in stake size or voting arrangements.
Key Figures
Shared Voting Power:84,781 sharesShared Dispositive Power:92,082 sharesPercent of Class:0.2%
3 metrics
Shared Voting Power84,781 sharesreported on the cover rows for AFI/CMIA
Shared Dispositive Power92,082 sharesreported on the cover rows for AFI/CMIA
Percent of Class0.2%Item 4 and cover rows for the reporting persons
"Item 1. Name of issuer: Sun Country Airlines Holdings, Inc."
A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.
Shared Dispositive Powerfinancial
"6 | Shared Voting Power 84,781.00 8 | Shared Dispositive Power 92,082.00"
Disclaims beneficial ownershipregulatory
"Each of AFI and CMIA disclaims beneficial ownership of any shares reported on this Schedule."
What stake does Ameriprise report in Sun Country (SNCY)?
Ameriprise (AFI) and CMIA report Shared Dispositive Power of 92,082 shares, representing 0.2% of the class. The filing states AFI includes CMIA’s reported shares and both entities disclaim beneficial ownership.
Does this Schedule 13G/A indicate active control of SNCY?
No. The filing is a Schedule 13G/A reporting passive ownership; it shows shared voting/dispositive power but does not assert active control. AFI and CMIA explicitly disclaim beneficial ownership in the Schedule.
Which reporting entities signed the amendment for SNCY?
The amendment lists Ameriprise Financial, Inc. (AFI) and Columbia Management Investment Advisers, LLC (CMIA) as reporting persons, with signatures executed by Michael G. Clarke on 05/15/2026.
What identifiers and dates appear on this filing for Sun Country?
The filing references CUSIP 866683105, an apparent date line 03/31/2026 on the cover, and signature dates of 05/15/2026 for the amendment execution.
Does the filing show sole voting or dispositive power by the filers?
No. The cover rows shown list Sole Voting Power 0.00 and Sole Dispositive Power 0.00, with shared powers reported instead (84,781 voting; 92,082 dispositive).
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 3)
Sun Country Airlines Holdings, Inc.
(Name of Issuer)
Common Stock
(Title of Class of Securities)
866683105
(CUSIP Number)
03/31/2026
(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):
866683105
1
Names of Reporting Persons
Ameriprise Financial, Inc.
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
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
84,781.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
92,082.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
92,082.00
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)
0.2 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
CUSIP Number(s):
866683105
1
Names of Reporting Persons
Columbia Management Investment Advisers, 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
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
84,781.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
90,788.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
90,788.00
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)
0.2 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Sun Country Airlines Holdings, Inc.
(b)
Address of issuer's principal executive offices:
2005 Cargo Road, Minneapolis, MN 55450
Item 2.
(a)
Name of person filing:
(a) Ameriprise Financial, Inc. ("AFI")
(b) Columbia Management Investment Advisers, LLC ("CMIA")
(b)
Address or principal business office or, if none, residence:
(a) 145 Ameriprise Financial Center, Minneapolis, MN 55474
(b) 290 Congress Street, Boston, MA 02210
(c)
Citizenship:
(a) Delaware
(b) Minnesota
(d)
Title of class of securities:
Common Stock
(e)
CUSIP No.:
866683105
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:
Incorporated by reference to Items (5)-(9) and (11) of the cover page pertaining to each reporting person.
AFI, as the parent company of CMIA, may be deemed to beneficially own the shares reported herein by CMIA. Accordingly, the shares reported herein by AFI include those shares separately reported herein by CMIA.
Each of AFI and CMIA disclaims beneficial ownership of any shares reported on this Schedule.
(b)
Percent of class:
The information required by Item 4(b) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
The information required by Item 4(c) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
(ii) Shared power to vote or to direct the vote:
The information required by Item 4(c) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
(iii) Sole power to dispose or to direct the disposition of:
The information required by Item 4(c) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
(iv) Shared power to dispose or to direct the disposition of:
The information required by Item 4(c) is set forth in Rows (5)-(9) and (11) of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
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.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
AFI: See Exhibit I
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.
Ameriprise Financial, Inc.
Signature:
/s/ Michael G. Clarke
Name/Title:
Michael G. Clarke, Senior Vice President, North America Head of Operations & Investor Services
Date:
05/15/2026
Columbia Management Investment Advisers, LLC
Signature:
/s/ Michael G. Clarke
Name/Title:
Michael G. Clarke, Senior Vice President, North America Head of Operations & Investor Services
Date:
05/15/2026
Comments accompanying signature:
Contact Information
Charles Chiesa
VP Fund Treasurer Global Operations and Investor Services
Telephone: 617-385-9593
Exhibit Information
Exhibit Index
Exhibit I Identification and Classification of the Subsidiaries which Acquired the Security Being Reported on by the Parent Holding Company.
Exhibit II Joint Filing Agreement
