secwatch.observer — SEC 8-K summary
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Issuer:     HANOVER INSURANCE GROUP, INC. (THG)
CIK:        0000944695
Form:       8-K
Filed at:   2026-07-15T21:13:55+00:00
Accession:  0001193125-26-304948
Event type: leadership
Sentiment:  neutral
Materiality: 0.60
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Hanover Insurance CEO John C. Roche to retire Dec 31, 2026; COO Richard W. Lavey named CEO-Elect
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- John C. Roche, 62, will retire as President and CEO and from the Board effective Dec 31, 2026, after a 40-year career.
- Richard W. Lavey, 59, appointed CEO-Elect; expected to become CEO on Jan 1, 2027 and join the Board.
- Lavey has been COO since March 2025 and previously led Hanover Agency Markets, which represents 75% of $7B gross premiums.
- Roche will remain an employee in an advisory capacity through Jan 8, 2027; retirement not related to any disagreement.
- Company plans to discuss strategy at investor day on Sep 17, 2026 and next earnings call on Jul 29, 2026.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/944695/000119312526304948/0001193125-26-304948-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/944695/000119312526304948/d160982d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-304948

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