VANGUARD GROUP INC - 31 Dec 2025 SCHEDULE 13G/A Report for First Interstate BancSystem Inc Common Stock (FIBK)

Filing Manager: VANGUARD GROUP INC
Reporting Manager: The Vanguard Group
Security: First Interstate BancSystem Inc Common Stock
Symbol: FIBK
Shares outstanding: 102,955,113 shares
Disclosed Ownership: 10,048,419 shares
Ownership: 9.8%
Form type: SCHEDULE 13G/A
Filing time: 30 Jan 2026, 14:20:12 UTC
Date of event: 31 Dec 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
The Vanguard Group	9.8%	10,048,419	0	706,628	Ashley Grim	Head of Global Fund Administration