Hanover Insurance Group, Inc.

THG·NYSE·$195.87Share Price as of 11/2·$7BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/29/26 10-QQ2 ended 06/30/2607/29/26 10-QQ1 ended 03/31/2604/30/26 10-KFY 202502/20/26 10-QQ3 ended 09/30/2510/30/25

Disclosures

8-KCurrent report10/28/26 8-KCurrent report07/28/26 8-KCurrent report07/15/26 8-KCurrent report05/13/26 8-KCurrent report04/29/26

Prospectuses and Registrations

424B2Prospectus for primary offering08/20/25 424B2Prospectus for primary offering08/19/25 FWPFree writing prospectus08/19/25 S-3ASRAutomatic shelf registration08/18/25 S-8 POSPost-effective amendment (S-8)08/06/24

Proxies

DEF 14ADefinitive proxy03/26/26 DEFA14AAdditional proxy materials03/26/26 DEF 14ADefinitive proxy03/27/25 DEFA14AAdditional proxy materials03/27/25 DEF 14ADefinitive proxy03/28/24

Ownership

Form 4Insider transaction09/28/26 Form 4Insider transaction09/28/26 Form 4Insider transaction09/28/26 Form 4Insider transaction09/28/26 Form 4Insider transaction09/28/26

Other

ARSAnnual report to shareholders03/26/26 25-NSERemoval from listing10/15/25 ARSAnnual report to shareholders03/27/25 ARSAnnual report to shareholders03/28/24 ARSAnnual report to shareholders03/24/23