Quick Takeaways
- WELLINGTON MANAGEMENT GROUP LLP filed SCHEDULE 13G for First Interstate BancSystem, Inc. Common Stock (FIBK).
- Disclosed ownership: 5.6%.
- Date of event: 30 Sep 2025.
WELLINGTON MANAGEMENT GROUP LLP - 30 Sep 2025 SCHEDULE 13G Report for First Interstate BancSystem, Inc. Common Stock (FIBK)
- Filing Manager
- WELLINGTON MANAGEMENT GROUP LLP
- Reporting Manager
- Wellington Management Group LLP
- Symbol
- FIBK
- Shares outstanding
- 105,632,589 shares
- Disclosed Ownership
- 5,915,425 shares
- Ownership
- 5.6%
- Form type
- SCHEDULE 13G
- Filing time
- 12 Nov 2025, 09:33:33 UTC
- Date of event
- 30 Sep 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"WELLINGTON MANAGEMENT GROUP LLP disclosed 5.6% ownership in First Interstate BancSystem, Inc. Common Stock (FIBK) on 30 Sep 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 12 Nov 2025, 09:33.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (4)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Wellington Management Group LLP | 5.6% | 5,915,425 | 0 | 5,358,835 | Taisia Lowe | Regulatory Analyst | |
| Wellington Group Holdings LLP | 5.6% | 5,915,425 | 0 | 5,358,835 | Taisia Lowe | Regulatory Analyst | |
| Wellington Investment Advisors Holdings LLP | 5.6% | 5,915,425 | 0 | 5,358,835 | Taisia Lowe | Regulatory Analyst | |
| Wellington Management Company LLP | 5.4% | 5,915,425 | 0 | 5,319,204 | Taisia Lowe | Regulatory Analyst |