Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000902219-25-000402
Filing Date
2025-11-12
Accepted
2025-11-12 09:33:33
Documents
2

Document Format Files

Seq Description Document Type Size
1 primary_doc.html SCHEDULE 13G  
1 primary_doc.xml SCHEDULE 13G 10671
2 JOINT FILING AGREEMENT Rule13D_JointFilingAgreement.htm EX-99 4413
  Complete submission text file 0000902219-25-000402.txt   17185
Mailing Address 401 NO 31ST STREET BILLINGS MT 59101
Business Address 401 NO 31ST STREET BILLINGS MT 59101 4062555311
FIRST INTERSTATE BANCSYSTEM INC (Subject) CIK: 0000860413 (see all company filings)

EIN.: 810331430 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G | Act: 34 | File No.: 005-78756 | Film No.: 251469844
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)

Mailing Address C/O WELLINGTON MANAGEMENT COMPANY LLP 280 CONGRESS STREET BOSTON MA 02210
Business Address C/O WELLINGTON MANAGEMENT COMPANY LLP 280 CONGRESS STREET BOSTON MA 02210 6179515000
WELLINGTON MANAGEMENT GROUP LLP (Filed by) CIK: 0000902219 (see all company filings)

EIN.: 042683227 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SCHEDULE 13G
SIC: 0000