AFFILIATED MANAGERS GROUP, INC. — 8-K Filings
240 8-K filings on record
This page lists all 8-K filings submitted to the SEC by AFFILIATED MANAGERS GROUP, INC. (MGRE), sorted by most recent first. Each row links to the full filing on EdgarLookup. AFFILIATED MANAGERS GROUP, INC. has filed 240 8-K documents with the SEC since 2012. To view all SEC filings by AFFILIATED MANAGERS GROUP, INC., see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
13F-NT
13F-NT/A
144
25
25-NSE
3
305B2
4
424B2
424B3
424B4
424B5
424B7
425
5
8-A12B
8-K
8-K/A
ARS
CERT
CERTNYS
CORRESP
DEF 14A
DEFA14A
EFFECT
FWP
N-PX
POSASR
PRE 14A
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-3ASR
S-4
S-4/A
S-8
SC 13D
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | 8-K | 0001193125-26-076911 | Feb 26, 2026 | Feb 22, 2026 |
| 8-K | 8-K | 0001193125-26-047590 | Feb 12, 2026 | Feb 10, 2026 |
| 8-K | 8-K | 0001628280-26-007464 | Feb 12, 2026 | — |
| 8-K | 8-K | 0001193125-25-316053 | Dec 11, 2025 | Dec 8, 2025 |
| 8-K | 8-K | 0001193125-25-311380 | Dec 8, 2025 | — |
| 8-K | 8-K | 0001628280-25-047923 | Nov 3, 2025 | — |
| 8-K | 8-K | 0001193125-25-180826 | Aug 14, 2025 | Aug 11, 2025 |
| 8-K | 8-K | 0001004434-25-000042 | Jul 31, 2025 | — |
| 8-K | 8-K | 0001193125-25-137112 | Jun 6, 2025 | Jun 3, 2025 |
| 8-K | 8-K | 0001193125-25-125095 | May 22, 2025 | — |
| 8-K | 8-K | 0001004434-25-000036 | May 8, 2025 | — |
| 8-K | 8-K | 0001193125-25-049936 | Mar 7, 2025 | — |
| 8-K | 8-K | 0001004434-25-000004 | Feb 6, 2025 | — |
| 8-K | 8-K | 0001193125-25-019350 | Feb 3, 2025 | Jan 30, 2025 |
| 8-K | 8-K | 0001193125-24-259866 | Nov 15, 2024 | — |
| 8-K | 8-K | 0001004434-24-000045 | Nov 4, 2024 | — |
| 8-K | 8-K | 0001193125-24-203661 | Aug 20, 2024 | Aug 15, 2024 |
| 8-K | 8-K | 0001193125-24-192855 | Aug 2, 2024 | — |
| 8-K | 8-K | 0001004434-24-000035 | Jul 29, 2024 | — |
| 8-K | 8-K | 0001193125-24-147104 | May 24, 2024 | May 22, 2024 |
| 8-K | 8-K | 0001004434-24-000026 | May 6, 2024 | — |
| 8-K | 8-K | 0001193125-24-076041 | Mar 25, 2024 | Mar 22, 2024 |
| 8-K | 8-K | 0001193125-24-072712 | Mar 20, 2024 | Mar 14, 2024 |
| 8-K | 8-K | 0001004434-24-000005 | Feb 5, 2024 | — |
| 8-K | 8-K | 0001004434-23-000031 | Nov 6, 2023 | — |
| 8-K | 8-K | 0001193125-23-240937 | Sep 25, 2023 | — |
| 8-K | 8-K | 0001004434-23-000021 | Jul 26, 2023 | — |
| 8-K | 8-K | 0001193125-23-156631 | May 30, 2023 | May 25, 2023 |
| 8-K | 8-K | 0001004434-23-000015 | May 1, 2023 | — |
| 8-K | 8-K | 0001004434-23-000004 | Feb 6, 2023 | — |
| 8-K | 8-K | 0001193125-22-315487 | Dec 30, 2022 | Dec 29, 2022 |
| 8-K | 8-K | 0001193125-22-289485 | Nov 21, 2022 | Nov 18, 2022 |
| 8-K | 8-K | 0001004434-22-000051 | Nov 7, 2022 | — |
| 8-K | 8-K | 0001004434-22-000044 | Oct 18, 2022 | — |
| 8-K | 8-K | 0001004434-22-000035 | Aug 1, 2022 | — |
| 8-K | 8-K | 0001193125-22-163993 | May 31, 2022 | May 27, 2022 |
| 8-K | 8-K | 0001193125-22-162415 | May 27, 2022 | — |
| 8-K | 8-K | 0001004434-22-000023 | May 2, 2022 | — |
| 8-K | 8-K | 0001193125-22-076708 | Mar 16, 2022 | — |
| 8-K | 8-K | 0001004434-22-000010 | Feb 7, 2022 | — |
| 8-K | 8-K | 0001004434-21-000037 | Nov 1, 2021 | — |
| 8-K | 8-K | 0001193125-21-308088 | Oct 26, 2021 | Oct 25, 2021 |
| 8-K | 8-K | 0001004434-21-000028 | Jul 28, 2021 | — |
| 8-K | 8-K | 0001193125-21-220682 | Jul 21, 2021 | Jul 19, 2021 |
| 8-K | 8-K | 0001193125-21-214114 | Jul 13, 2021 | Jul 8, 2021 |
| 8-K | 8-K | 0001193125-21-188978 | Jun 11, 2021 | Jun 9, 2021 |
| 8-K | 8-K | 0001004434-21-000019 | May 3, 2021 | — |
| 8-K | 8-K | 0001004434-21-000010 | Feb 8, 2021 | — |
| 8-K | 8-K | 0001193125-21-005236 | Jan 8, 2021 | — |
| 8-K | 8-K | 0001193125-21-005324 | Jan 8, 2021 | — |