Message Board
Effective July 1, 2025, Formulary Change Impacting Members Taking Humira or Stelara
Horizon Broker Brief
Some Horizon Members Impacted by Cybersecurity Incident
Horizon Broker Brief
Helping Members Get the Right Care in the Right Places - and Save Money
Horizon Broker Brief
Message Board
Horizon Small Group
2025 Conversion Cutoff Dates
Effective Date Submission Date
1/1/202512/20/2024
1/15/2025 1/8/2025
1/28/2025 1/21/2025
2/1/2025 1/27/2025
2/15/2025 2/10/2025
2/28/2025 2/21/2025
3/1/2025 2/24/2025
3/15/2025 3/10/2025
3/28/2025 3/21/2025
4/1/2025 3/25/2025
4/15/2025 4/8/2025
4/28/2025 4/21/2025
5/1/2025 4/24/2025
5/15/2025 5/8/2025
5/28/2025 5/20/2025
6/1/2025 5/23/2025
6/15/2025 6/9/2025
6/28/2025 6/23/2025
7/1/2025 6/24/2025
7/15/2025 7/8/2025
7/28/2025 7/21/2025
8/1/2025 7/25/2025
8/15/2025 8/8/2025
8/28/2025 8/21/2025
9/1/2025 8/25/2025
9/15/2025 9/8/2025
9/28/2025 9/22/2025
10/1/2025 9/24/2025
10/15/2025 10/8/2025
10/28/202510/21/2025
11/1/202510/24/2025
11/15/202511/7/2025
11/28/202511/20/2025
12/1/202511/20/2025
12/15/2025 12/8/2025
12/28/202512/18/2025