{"transactions":[{"id":4627634,"issuer":{"id":3652,"kind":"organization","name":"HANOVER INSURANCE GROUP, INC.","symbol":"THG"},"owners":[{"id":34600,"kind":"person","name":"Ward Elizabeth A","position":1,"cik":"0001934557","reported_name":"Ward Elizabeth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-09-28T20:28:01.000Z","date":"2026-09-25","kind":"grant","planned":false,"acquired":true,"shares":3.7,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Grant of restricted stock units (\"RSUs\") under the Issuer's 2022 Long-Term Incentive Plan (\"2022 LTIP\") in connection with the accrual of dividend equivalent rights associated with RSUs previously granted under the Issuer's 2022 LTIP. Such units vest on the earlier of the one-year anniversary of the date of grant of the original underlying RSUs or the date of the next annual meeting."}],"balance_after":5886.467,"source":{"system":"sec-edgar","filing":"0001193125-26-405389","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1934557/000119312526405389/ownership.xml","form_type":"4"}},{"id":723207,"issuer":{"id":3652,"kind":"organization","name":"HANOVER INSURANCE GROUP, INC.","symbol":"THG"},"owners":[{"id":34600,"kind":"person","name":"Ward Elizabeth A","position":1,"cik":"0001934557","reported_name":"Ward Elizabeth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-30T20:12:31.000Z","date":"2026-06-26","kind":"grant","planned":false,"acquired":true,"shares":3.767,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Grant of restricted stock units (\"RSUs\") under the Issuer's 2022 Long-Term Incentive Plan (\"2022 LTIP\") in connection with the accrual of dividend equivalent rights associated with RSUs previously granted under the Issuer's 2022 LTIP. Such units vest on the earlier of the one-year anniversary of the date of grant of the original underlying RSUs or the date of the next annual meeting."}],"balance_after":5882.767,"source":{"system":"sec-edgar","filing":"0001193125-26-290522","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/944695/000119312526290522/ownership.xml","form_type":"4"}},{"id":781474,"issuer":{"id":3652,"kind":"organization","name":"HANOVER INSURANCE GROUP, INC.","symbol":"THG"},"owners":[{"id":34600,"kind":"person","name":"Ward Elizabeth A","position":1,"cik":"0001934557","reported_name":"Ward Elizabeth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-13T20:16:00.000Z","date":"2026-05-12","kind":"grant","planned":false,"acquired":true,"shares":843,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Grant of restricted stock units under the Issuer's 2022 Long-Term Incentive Plan. Such units vest on the earlier of the one-year anniversary of the date of grant or the date of the next annual meeting."}],"balance_after":5879,"source":{"system":"sec-edgar","filing":"0001934557-26-000002","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/944695/000193455726000002/ownership.xml","form_type":"4"}},{"id":1148097,"issuer":{"id":3652,"kind":"organization","name":"HANOVER INSURANCE GROUP, INC.","symbol":"THG"},"owners":[{"id":34600,"kind":"person","name":"Ward Elizabeth A","position":1,"cik":"0001934557","reported_name":"Ward Elizabeth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-05-15T20:29:39.000Z","date":"2025-05-14","kind":"grant","planned":false,"acquired":true,"shares":977,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares granted pursuant to the Issuer's 2022 Long-Term Incentive Plan."}],"balance_after":5036,"source":{"system":"sec-edgar","filing":"0001062993-25-009556","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/944695/000106299325009556/form4.xml","form_type":"4"}},{"id":1514946,"issuer":{"id":3652,"kind":"organization","name":"HANOVER INSURANCE GROUP, INC.","symbol":"THG"},"owners":[{"id":34600,"kind":"person","name":"Ward Elizabeth A","position":1,"cik":"0001934557","reported_name":"Ward Elizabeth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-05-16T20:10:02.000Z","date":"2024-05-15","kind":"grant","planned":false,"acquired":true,"shares":2015,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares granted pursuant to the Issuer's 2022 Long-Term Incentive Plan. Amount granted includes the annual cash retainer converted into common stock at the election of the Reporting Person."}],"balance_after":4059,"source":{"system":"sec-edgar","filing":"0001062993-24-010428","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/944695/000106299324010428/form4.xml","form_type":"4"}},{"id":1898578,"issuer":{"id":3652,"kind":"organization","name":"HANOVER INSURANCE GROUP, INC.","symbol":"THG"},"owners":[{"id":34600,"kind":"person","name":"Ward Elizabeth A","position":1,"cik":"0001934557","reported_name":"Ward Elizabeth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-05-10T19:35:29.000Z","date":"2023-05-09","kind":"grant","planned":false,"acquired":true,"shares":1246,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares granted pursuant to the Issuer's 2022 Long-Term Incentive Plan."}],"balance_after":2044,"source":{"system":"sec-edgar","filing":"0001062993-23-010651","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/944695/000106299323010651/form4.xml","form_type":"4"}},{"id":2204707,"issuer":{"id":3652,"kind":"organization","name":"HANOVER INSURANCE GROUP, INC.","symbol":"THG"},"owners":[{"id":34600,"kind":"person","name":"Ward Elizabeth A","position":1,"cik":"0001934557","reported_name":"Ward Elizabeth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-07-20T21:45:07.000Z","date":"2022-07-19","kind":"grant","acquired":true,"shares":798,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares granted pursuant to the Issuer's 2022 Long-Term Incentive Plan."}],"balance_after":798,"source":{"system":"sec-edgar","filing":"0001062993-22-016569","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/944695/000106299322016569/form4.xml","form_type":"4"}}]}