secwatch.observer — SEC 8-K summary
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Issuer:     CLEAN HARBORS INC (CLH)
CIK:        0000822818
Form:       8-K
Filed at:   2023-03-16T23:59:59+00:00
Accession:  0000822818-23-000018
Event type: leadership
Sentiment:  neutral
Materiality: 0.35
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Clean Harbors appoints former MA Lt. Gov. Karyn Polito to Board; two directors to retire
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- Karyn Polito appointed to Board effective March 16, 2023, expanding Board to 13 members.
- Polito served as MA Lt. Governor (2015-2023); will serve on Audit and Governance Committees.
- Edward Galante to be named Lead Independent Director.
- Dr. Eugene Banucci and Thomas Shields plan to retire and not stand for re-election at May 2023 annual meeting.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/822818/000082281823000018/0000822818-23-000018-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/822818/000082281823000018/clh-20230316.htm
  HTML page:      https://secwatch.observer/filing/0000822818-23-000018

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer