Security key
410867105
- Security type / class
- Equity / COM
- Total 13F shares
- 31,768,112
- Total 13F value
- $5,804,309,060
- Share change
- -113,560
- Put/Call ratio
- 44%
- SEC-reported price per share
- $182.77
- Number of holders
- 493
- Value change
- -$19,715,768
- Number of buys
- 238
- Number of sells
- 194
Show 1 more signal
Report period
Q4 2025
Institutions
493
Top holders
10
THG full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
HANOVER INSURANCE GROUP, INC. SEC filings
HANOVER INSURANCE GROUP, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 410867105
Recent filing periods:
Ownership snapshot
Top reported holders of THG - HANOVER INSURANCE GROUP, INC. - COM (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD GROUP INC
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
0/15
Latest evidence
30 Sep 2025
13F
Highest disclosed value: $672,481,806
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD GROUP INC has the largest disclosed position value at $672.48M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Disclosed position value
Top 5
VANGUARD GROUP INC
$672.48M
BlackRock, Inc.
$641.65M
PRICE T ROWE ASSOCIATES INC /MD/
$295.9M
MASSACHUSETTS FINANCIAL SERVICES ...
$229.87M
ALLIANCEBERNSTEIN L.P.
$229.35M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
Company
|
—
class O/S missing
|
$672,481,806
3,702,482 shares
|
— | 30 Sep 2025 |
| BlackRock, Inc. |
13F
Company
|
—
class O/S missing
|
$641,647,382
3,532,717 shares
|
— | 30 Sep 2025 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
Company
|
—
class O/S missing
|
$295,903,000
1,629,145 shares
|
— | 30 Sep 2025 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
Company
|
—
class O/S missing
|
$229,866,205
1,265,574 shares
|
— | 30 Sep 2025 |
| ALLIANCEBERNSTEIN L.P. |
13F
Company
|
—
class O/S missing
|
$229,347,652
1,262,719 shares
|
— | 30 Sep 2025 |
| STATE STREET CORP |
13F
Company
|
—
class O/S missing
|
$225,030,670
1,238,951 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
493
Shares
31,768,112
Rows available
493
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
457
Q4 2025 holders
493
Holder diff
36
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend