X0206 3 2024-11-05 0 0001743907 Sun Country Airlines Holdings, Inc. SNCY 0000312069 BARCLAYS PLC 1 CHURCHILL PLACE CANARY WHARF LONDON X0 E14 5HP UNITED KINGDOM 0 0 1 0 Common Stock, par value $0.01 per share 320874 I Barclays Bank PLC Common Stock, par value $0.01 per share 5196782 I Barclays Capital Inc Common Stock, par value $0.01 per share 29380 I Barclays Capital Securities Ltd (a) Beneficially owned Class A ordinary shares par value $0.01 per share. (b) Name of Person Filing: (1) Barclays PLC (2) Barclays Bank PLC (controlled by Barclays PLC) (3) Barclays Capital Inc. (controlled by Barclays PLC) (4) Barclays Capital Securities Ltd. (controlled by Barclays PLC) (c) Address of Principal Business Office or, if non, Residence: (1) Barclays PLC 1 Churchill Place London, E14 5HP, England (2) Barclays Bank PLC 1 Churchill Place London, E14 5HP, England (3) Barclays Capital Inc. 745 Seventh Avenue New York, New York 10019 United States (4) Barclays Capital Securities Ltd. 1 Churchill Place London, E14 5HP, England Suejean Mott 2024-11-08