---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-25-011546"
form_type: "8-K"
ticker: "SMBC"
cik: "0000916907"
company_name: "SOUTHERN MISSOURI BANCORP, INC."
filed_at: "2025-08-14T23:59:59+00:00"
generated_at: "2026-05-17T13:48:09.583682+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# SMBC 401(k) plan migration triggers blackout period for directors and officers from Sep 8 to mid-Oct 2025

## Summary
- Plan moving from American Funds to Fidelity effective Sep 16, 2025; blackout begins Sep 8 at 4:00 p.m. ET.
- Blackout expected to end week of Oct 12, 2025; participants cannot trade or change allocations during this period.
- Directors and Section 16 officers prohibited from trading SMBC stock acquired in connection with service during blackout.
- Exemptions for gifts and automatic transactions; violations may require disgorgement of profits.

## SEC filing metadata
- accession: 0001558370-25-011546
- form_type: 8-K
- ticker: SMBC
- cik: 0000916907
- company_name: SOUTHERN MISSOURI BANCORP, INC.
- filed_at: 2025-08-14T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.04, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/916907/000155837025011546/0001558370-25-011546-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916907/000155837025011546/smbc-20250814x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-25-011546
- JSON: https://secwatch.observer/filing/0001558370-25-011546.json
- Plain text: https://secwatch.observer/filing/0001558370-25-011546.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.