The Hanover Insurance Group, Inc.

The Hanover Insurance Group, Inc.

THGยทNYSE

$186.35

+0.68%
Financial ServicesInsurance - Property & Casualty

The Hanover Insurance Group, Inc., through its subsidiaries, provides various property and casualty insurance products and services in the United States. The company operates through three segments: Commercial Lines, Personal Lines, and Other. The Commercial Lines segment offers commercial multiple peril, commercial automobile, and workers' compensation insurance products, as well as management and professional liability, marine, specialty industrial and commercial property, monoline general liability, surety, umbrella, fidelity, crime, and other commercial coverages. The Personal Lines segment provides personal automobile and homeowner's coverages, as well as other personal coverages, such as personal umbrella, inland marine, fire, personal watercraft, personal cyber, and other miscellaneous coverages. The Other segment markets investment management services to institutions, pension funds, and other organizations. The Hanover Insurance Group, Inc. markets its products and services through independent agents and brokers. The company was formerly known as Allmerica Financial Corp. and changed its name to The Hanover Insurance Group, Inc. in December 2005. The Hanover Insurance Group, Inc. was founded in 1852 and is headquartered in Worcester, Massachusetts.

At a Glance

Live Snapshot
Market Cap$6.52B
EPS18.5100
P/E Ratio10.07
Earnings Date07/29/2026

SEC Filings

THG - Filing history and reports

Filing TypeFiling DatePeriod EndingFiscal YearActions
8-K

8-K 2026

N/A

May 13, 2026
May 12, 2026
2026
10-Q

10-Q 2026 Q1

Q1

April 30, 2026
March 31, 2026
2026
8-K

8-K 2026

N/A

April 29, 2026
April 29, 2026
2026
DEF 14A

DEF 14A 2026

N/A

March 26, 2026
May 12, 2026
2026
10-K

10-K 2025 FY

FY

February 20, 2026
December 31, 2025
2025
8-K

8-K 2026

N/A

February 04, 2026
February 03, 2026
2026
8-K

8-K 2025

N/A

December 16, 2025
December 16, 2025
2025
10-Q

10-Q 2025 Q3

Q3

October 30, 2025
September 30, 2025
2025
8-K

8-K 2025

N/A

October 29, 2025
October 29, 2025
2025
8-K

8-K 2025

N/A

August 21, 2025
August 19, 2025
2025
Showing 1 to 10 of 449 filings

Understanding SEC Filings

Essential regulatory documents for investors

SEC filings are mandatory documents that publicly traded companies must submit to the Securities and Exchange Commission. These reports provide critical insights into a company's financial health, operations, risks, and strategic direction. For investors conducting due diligence, these filings are the most authoritative source of company information.

10-K

Annual Report

Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.

Filed annually
10-Q

Quarterly Report

Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.

Filed 3 times per year
8-K

Current Report

Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.

Filed as events occur
DEF 14A

Proxy Statement

Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.

Filed before shareholder meetings
S-1

Registration Statement

Initial registration for securities offerings, including IPOs. Provides detailed company history, business model, financial statements, risk factors, and use of proceeds. Essential for evaluating new investment opportunities and understanding company fundamentals.

Filed for new offerings
20-F

Foreign Annual Report

Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.

Foreign companies only

Why SEC Filings Matter

  • Regulatory Accuracy: Filings are subject to SEC review and legal penalties for misstatements, ensuring high data quality
  • Management Insights: MD&A sections reveal management's perspective on trends, challenges, and future outlook
  • Risk Assessment: Detailed risk factor disclosures help investors understand potential threats to business operations
  • Competitive Analysis: Business descriptions and segment data enable comparison with industry peers
  • Historical Context: Years of filings provide trend analysis and context for current performance