---
schema_version: "secwatch.filing_event.v1"
accession: "0000022356-25-000091"
form_type: "8-K"
ticker: "CBSH"
cik: "0000022356"
company_name: "COMMERCE BANCSHARES INC /MO/"
filed_at: "2025-11-04T23:59:59+00:00"
generated_at: "2026-05-17T00:45:02.168191+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Commerce Bancshares authorizes up to 5M share buyback; appoints new director

## Summary
- Board appointed Alaina G. Maciá as independent director effective Oct 31, 2025, filling vacancy from Jonathan M. Kemper's retirement.
- Maciá is CEO of MTM Health, which grew revenue from $30M to nearly $2B under her leadership.
- Board authorized repurchase of up to 5,000,000 shares of common stock (combined with prior authorization from April 17, 2024).
- Repurchases may occur through open market or private transactions at management's discretion based on market conditions.

## SEC filing metadata
- accession: 0000022356-25-000091
- form_type: 8-K
- ticker: CBSH
- cik: 0000022356
- company_name: COMMERCE BANCSHARES INC /MO/
- filed_at: 2025-11-04T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/22356/000002235625000091/0000022356-25-000091-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/22356/000002235625000091/cbsh-20251031.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000022356-25-000091
- JSON: https://secwatch.observer/filing/0000022356-25-000091.json
- Plain text: https://secwatch.observer/filing/0000022356-25-000091.txt

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