---
schema_version: "secwatch.filing_event.v1"
accession: "0000822818-21-000045"
form_type: "8-K"
ticker: "CLH"
cik: "0000822818"
company_name: "CLEAN HARBORS INC"
filed_at: "2021-09-10T23:59:59+00:00"
generated_at: "2026-06-29T04:40:42.599768+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Clean Harbors appoints Marcy Reed to Board of Directors; expands board to 10

## Summary
- Marcy Reed, former National Grid Massachusetts President and EVP, appointed to Clean Harbors Board effective Sept 8, 2021.
- Board expanded from 9 to 10 members; Reed will serve as Class II director until 2024 annual meeting.
- Reed will join Audit and Environmental, Health and Safety Committees; she is a CPA and qualified financial expert.
- Reed brings expertise in finance, strategy, operations, and sustainability aligned with Clean Harbors growth strategy.

## SEC filing metadata
- accession: 0000822818-21-000045
- form_type: 8-K
- ticker: CLH
- cik: 0000822818
- company_name: CLEAN HARBORS INC
- filed_at: 2021-09-10T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/822818/000082281821000045/0000822818-21-000045-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/822818/000082281821000045/clh-20210908.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000822818-21-000045
- JSON: https://secwatch.observer/filing/0000822818-21-000045.json
- Plain text: https://secwatch.observer/filing/0000822818-21-000045.txt

## Key facts
- Executive change
  Marcy Reed was appointed as Director at CLEAN HARBORS INC.
  - Action: appointed
  - Role: Director
  source text: On September 8, 2021, Clean Harbors, Inc. (the “Company”) announced the expansion of the Company’s Board of Directors (the "Board") from nine to ten, and the appointment of Marcy Reed to the Board, each effective as of September 8, 2021.
  evidence_url: https://www.sec.gov/Archives/edgar/data/822818/000082281821000045/0000822818-21-000045-index.htm

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