HANOVER INSURANCE GROUP, INC. — 424B2 Filings
12 424B2 filings on record
This page lists all 424B2 filings submitted to the SEC by HANOVER INSURANCE GROUP, INC. (THG), sorted by most recent first. Each row links to the full filing on EdgarLookup. HANOVER INSURANCE GROUP, INC. has filed 12 424B2 documents with the SEC since 2016. To view all SEC filings by HANOVER INSURANCE GROUP, INC., see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
11-K
13F-HR
13F-HR/A
13F-NT
144
15-12B
25-NSE
3
3/A
305B2
4
4/A
424B2
5
5/A
8-A12B
8-A12B/A
8-K
8-K/A
ARS
CERTNYS
CORRESP
DEF 14A
DEF13E3/A
DEFA14A
FWP
IRANNOTICE
PRE 14A
PRE13E3
PRE13E3/A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13E3
SC 13E3/A
SC 13G
SC 13G/A
SC 14D1
SC 14D1/A
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 424B2 | 424B2 | 0001193125-25-184169 | Aug 20, 2025 | — |
| 424B2 | 424B2 | 0001193125-25-183091 | Aug 19, 2025 | — |
| 424B2 | 424B2 | 0001193125-20-225688 | Aug 20, 2020 | — |
| 424B2 | 424B2 | 0001193125-20-224255 | Aug 19, 2020 | — |
| 424B2 | 424B2 | 0001193125-16-532332 | Apr 6, 2016 | — |
| 424B2 | 424B2 | 0001193125-16-530169 | Apr 5, 2016 | — |
| 424B2 | FORM 424(B)(2) | 0001193125-13-119626 | Mar 21, 2013 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0001193125-13-116342 | Mar 20, 2013 | — |
| 424B2 | 424B2 | 0001193125-11-165801 | Jun 15, 2011 | — |
| 424B2 | 424B2 | 0001193125-11-164359 | Jun 14, 2011 | — |
| 424B2 | 424B2 | 0001193125-10-035195 | Feb 19, 2010 | — |
| 424B2 | 424B2 | 0001193125-10-033965 | Feb 18, 2010 | — |