THG — HANOVER INSURANCE GROUP, INC.Today's name, from the SEC's present-day ticker list — a present-day mapping, not the name as of each filing.

Congress trades
6
all time
Members · 12m
0
0 buys · 0 sells · by trade date
Latest filing
06-22
2025-06-22
Rows filed past the STOCK Act's 45-day window, stated on the row, never editorialised; both dates and the receipt stay on every row.
0
every row filed inside 45 days
13F holders
417
all listed · 2026-03-31
Congress: statutory ranges, filed up to 45 days after the trade · 13F: quarter-end snapshots, filed up to 45 days lateras of 2026-10-29
Congress 6Institutional 417

Congress · disclosure timeline

By trade date · 24 months · 1 row ▲ buy, ▼ sell; height = lower bound (log scale). Trade date, not filing date — the filing lag is in the table below.

1 dated disclosure in the window, placed by trade date; magnitudes are the disclosed lower bounds, against gridlines at $15K, $250K, $5M.

Members active in THG

12 months · most active first Rows = number of disclosures, not dollars. Net = lower bound of the net range. Committees as of each member's latest trade in the window (roster snapshot 2026-10-29).

No member disclosed THG in the trailing 12 months.

Congressional disclosures

Newest filed firstAll 6 rows ↗
Latest congressional filings mentioning THG
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2025-06-22Jefferson Shreve R–IN-6SELLTraded 05-12 +41d$15K–$50K
2019-03-04Susie Lee D–NV-3SELL JT (jointly owned)Traded 01-24 +39d$1K–$15K
2016-03-03Thomas MacArthur R–NJ-3SELL JT (jointly owned)Traded 02-01 +31d$15K–$50K
2015-12-06Thomas MacArthur R–NJ-3SELL JT (jointly owned)Traded 11-10 +26d$1K–$15K
2015-10-08Thomas MacArthur R–NJ-3SELL JT (jointly owned)Traded 09-24 +14d$1K–$15K
2015-06-07Thomas MacArthur R–NJ-3SELL JT (jointly owned)Traded 05-04 +34d$1K–$15K

13F holders · Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt. · longs only

Top institutional holders of THG for quarter 2026-03-31, 1–25 of 417 holders
#FilerValueSecuritiesFlagsderived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date, which this table does not show, but no document links — the EDGAR link opens the filer's 13F list·§
1BlackRock, Inc.$638M1
derived ·§ EDGAR ↗
2VANGUARD PORTFOLIO MANAGEMENT LLC$335M1
derived ·§ EDGAR ↗
3STATE STREET CORP$283M1
derived ·§ EDGAR ↗
4VANGUARD CAPITAL MANAGEMENT LLC$252M1
derived ·§ EDGAR ↗
5AQR CAPITAL MANAGEMENT LLC$175M1
derived ·§ EDGAR ↗
6AMERICAN CENTURY COMPANIES INC$174M1
derived ·§ EDGAR ↗
7FULLER & THALER ASSET MANAGEMENT, INC.$172M1
derived ·§ EDGAR ↗
8DIMENSIONAL FUND ADVISORS LP$168M1
derived ·§ EDGAR ↗
9ALLIANCEBERNSTEIN L.P.$152M1
derived ·§ EDGAR ↗
10FIRST TRUST ADVISORS LP$143M1
derived ·§ EDGAR ↗
11MASSACHUSETTS FINANCIAL SERVICES CO /MA/$104M1
derived ·§ EDGAR ↗
12Qube Research & Technologies Ltd$85.4M1
derived ·§ EDGAR ↗
13CHARLES SCHWAB INVESTMENT MANAGEMENT INC$81.6M1
derived ·§ EDGAR ↗
14MORGAN STANLEY$80.2M1
derived ·§ EDGAR ↗
15Invesco Ltd.$78.5M1
derived ·§ EDGAR ↗
16Woodline Partners LP$72.6M1
derived ·§ EDGAR ↗
17Allspring Global Investments Holdings, LLC$69.2M1
derived ·§ EDGAR ↗
18LONDON CO OF VIRGINIA$66.2M1
derived ·§ EDGAR ↗
19NORTHERN TRUST CORP$59.3M1
derived ·§ EDGAR ↗
20MARKEL GROUP INC.$48.7M1
derived ·§ EDGAR ↗
21NOMURA ASSET MANAGEMENT INTERNATIONAL INC.$48.0M1
derived ·§ EDGAR ↗
22BANK OF AMERICA CORP /DE/$43.5M1
derived ·§ EDGAR ↗
23UBS Group AG$41.2M1
derived ·§ EDGAR ↗
24VANGUARD FIDUCIARY TRUST CO$37.5M1
derived ·§ EDGAR ↗
25ADAGE CAPITAL PARTNERS GP, L.L.C.$37.3M1
derived ·§ EDGAR ↗
Show all 417 holders
Truncated by Public Filings. All 367 13F filers reporting this share class are listed. Method ↗

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Congress ↔ notable managers · THG

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Notable managers · quarter ended 2026-03-31

Adding
1 Gotham Asset Management $26.3M held
Trimming
1 Bridgewater Associates $2.8M held

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · HANOVER INS GROUP INC

Merged timeline of congressional filings and notable-manager moves on THG
DateWhoChangeSize
2026-05-15Gotham Asset Management 13FADD+18,323 sh
2026-05-15Bridgewater Associates 13FTRIM−10,071 sh

2 newest, by filing date · 13F rows are quarter-end snapshots, not trades

Congress vs filers

12 months
Congress net (rows)no rows
Congress net ($ bound)$0
Filersnot computedThe filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.