BERKSHIRE HATHAWAY INC vs HANOVER INSURANCE GROUP, INC., risk disclosures compared

3topics both disclose

1only BERKSHIRE HATHAWAY INC

5only HANOVER INSURANCE GROUP, INC.

What both disclose

Topics appearing in filings from both companies, and how many filings each.

Topic	BERKSHIRE HATHAWAY INC	HANOVER INSURANCE GROUP, INC.
Internal Control	20	2
Business Continuity	2	8
Restatement	4	3

Only BERKSHIRE HATHAWAY INC

Topic	Filings
Records Retention	8

Only HANOVER INSURANCE GROUP, INC.

Topic	Filings
Artificial Intelligence	9
Privacy Compliance	4
Third Party Risk Management	4
Enforcement Action	2
Ransomware	2

What this compares

Which of the topics we track appear in each company's SEC filings, and how often. A topic appearing for one company and not the other means one wrote the phrase down and the other did not, in the filings we hold. It does not mean one faces a risk the other does not, and it is not a comparison of how well either manages anything.

Counts reflect the filings we have collected, which is a growing subset rather than a company's complete history.

BERKSHIRE HATHAWAY INC · HANOVER INSURANCE GROUP, INC. · All companies