Jeffrey M. Farber - 29 Jul 2026 Form 4 Insider Report for HANOVER INSURANCE GROUP, INC. (THG)

Reporting relationship: Executive Vice President
Issuer ticker: THG
Reported as of: 29 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 31 Jul 2026, 16:19:15 UTC
Prior SEC filing: 30 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Lindsay L. Katz pursuant to Confirming Statement

Key filing fact

Jeffrey M. Farber filed Form 4 for HANOVER INSURANCE GROUP, INC. (THG) on 31 Jul 2026.

Key facts

This page summarizes Jeffrey M. Farber's Form 4 filing for HANOVER INSURANCE GROUP, INC. (THG).
7 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 31 Jul 2026, 16:19.

Change

Previous filing in this sequence was filed on 30 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001275634 Primary reporting owner

FARBER JEFFREY M

Relationship: Executive Vice President
Address: C/O THE HANOVER INSURANCE GROUP, INC., 440 LINCOLN STREET, WORCESTER
Signature: /s/ Lindsay L. Katz pursuant to Confirming Statement
Signature date: 31 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

THG transaction

Common Stock

Options Exercise

Transaction value
Shares: +20,379
Change %: +39%
Price: $117.22^*
Shares after: 72,191
Date: 29 Jul 2026
Ownership: Direct
Footnotes: F1

THG transaction

Common Stock

Options Exercise

Transaction value
Shares: +26,832
Change %: +37%
Price: $118.54^*
Shares after: 99,023
Date: 29 Jul 2026
Ownership: Direct
Footnotes: F1

THG transaction

Common Stock

Options Exercise

Transaction value
Shares: +19,084
Change %: +19%
Price: $115.35^*
Shares after: 118,107
Date: 29 Jul 2026
Ownership: Direct
Footnotes: F1

THG transaction

Common Stock

Tax liability

Transaction value
Shares: -49,330
Change %: -42%
Price: $232.34^*
Shares after: 68,777
Date: 29 Jul 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

THG transaction Derivative

Common Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -20,379
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 20,379
Exercise price: $117.22
Footnotes: F2

THG transaction Derivative

Common Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -26,832
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 26,832
Exercise price: $118.54
Footnotes: F3

THG transaction Derivative

Common Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -19,084
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 29 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 19,084
Exercise price: $115.35
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

The Reporting Person's options were "net exercised". Accordingly, a total of 49,330 shares were withheld by the Company to satisfy the exercise price and taxes associated with the exercise, resulting in a net issuance of 16,965 shares.

Footnote F2

The option, representing the right to purchase a total of 20,379 shares, vested 1/3 on each of 3/5/2020, 3/5/2021 and 3/5/2022.

Footnote F3

The option, representing the right to purchase a total of 26,832 shares, vested 1/3 on each of 2/28/2021, 2/28/2022 and 2/28/2023.

Footnote F4

The option, representing the right to purchase a total of 19,084 shares, vested 1/3 on each of 2/26/2022, 2/26/2023 and 2/26/2024.