---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-062329"
form_type: "8-K"
ticker: "TNC"
cik: "0000097134"
company_name: "TENNANT CO"
filed_at: "2024-05-16T23:59:59+00:00"
generated_at: "2026-06-01T22:27:09.796552+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Tennant Company appoints Graco CEO Mark W. Sheahan to board, effective May 15, 2024

## Summary
- Mark W. Sheahan, President & CEO of Graco Inc. (NYSE: GGG), elected to Tennant board.
- Sheahan will serve on Audit and Executive Committees; term expires at 2027 annual meeting.
- He receives standard non-employee director compensation on a pro-rata basis.
- Sheahan brings expertise in global manufacturing, strategic growth, and financial strategy.

## SEC filing metadata
- accession: 0001104659-24-062329
- form_type: 8-K
- ticker: TNC
- cik: 0000097134
- company_name: TENNANT CO
- filed_at: 2024-05-16T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/97134/000110465924062329/0001104659-24-062329-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/97134/000110465924062329/tm2414514d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-062329
- JSON: https://secwatch.observer/filing/0001104659-24-062329.json
- Plain text: https://secwatch.observer/filing/0001104659-24-062329.txt

## Key facts
- Executive change
  Mark W. Sheahan was elected as Director at TENNANT CO.
  - Action: elected
  - Role: Director
  source text: On May 13, 2024, the Board of Directors (the “Board”) of Tennant Company (the “Company”) elected Mark W. Sheahan as a member of the Board effective May 15, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/97134/000110465924062329/0001104659-24-062329-index.htm

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