AFFILIATED MANAGERS GROUP, INC. — All Filings
1,002 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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 |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-000481 | Mar 26, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000035 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000033 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000031 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000029 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000027 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000025 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000023 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000021 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000019 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000017 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-26-000015 | Mar 9, 2026 | Mar 5, 2026 |
| 144 | — | 0001950047-26-002349 | Mar 9, 2026 | — |
| 144 | — | 0001959173-26-002074 | Mar 9, 2026 | — |
| 144 | — | 0001950047-26-002306 | Mar 6, 2026 | — |
| SCHEDULE 13G/A | — | 0000102909-26-000333 | Mar 5, 2026 | — |
| 8-K | 8-K | 0001193125-26-076911 | Feb 26, 2026 | Feb 22, 2026 |
| 10-K | 10-K | 0001628280-26-008665 | Feb 17, 2026 | Dec 31, 2025 |
| 13F-NT | — | 0001193125-26-051539 | Feb 13, 2026 | Dec 31, 2025 |
| SCHEDULE 13G/A | — | 0000905729-26-000041 | Feb 13, 2026 | — |
| 8-K | 8-K | 0001628280-26-007464 | Feb 12, 2026 | — |
| 8-K | 8-K | 0001193125-26-047590 | Feb 12, 2026 | Feb 10, 2026 |
| 4 | PRIMARY DOCUMENT | 0001004434-25-000067 | Dec 23, 2025 | — |
| 8-K | 8-K | 0001193125-25-316053 | Dec 11, 2025 | Dec 8, 2025 |
| 424B5 | 424B5 | 0001193125-25-314311 | Dec 10, 2025 | — |
| FWP | FWP | 0001193125-25-311451 | Dec 8, 2025 | — |
| 8-K | 8-K | 0001193125-25-311380 | Dec 8, 2025 | — |
| 424B5 | 424B5 | 0001193125-25-310663 | Dec 8, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001004434-25-000064 | Nov 28, 2025 | Nov 25, 2025 |
| 13F-NT | — | 0001193125-25-280265 | Nov 13, 2025 | Sep 30, 2025 |
| 4 | PRIMARY DOCUMENT | 0001004434-25-000057 | Nov 12, 2025 | Nov 7, 2025 |
| 10-Q | 10-Q | 0001628280-25-050206 | Nov 6, 2025 | Sep 30, 2025 |
| 4 | PRIMARY DOCUMENT | 0001004434-25-000053 | Nov 5, 2025 | Nov 3, 2025 |
| 8-K | 8-K | 0001628280-25-047923 | Nov 3, 2025 | — |
| SCHEDULE 13G/A | — | 0001104659-25-104395 | Oct 30, 2025 | — |
| SCHEDULE 13G/A | — | 0000102909-25-000065 | Oct 30, 2025 | — |
| 3 | PRIMARY DOCUMENT | 0001004434-25-000050 | Oct 3, 2025 | Sep 30, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-021240 | Sep 9, 2025 | Sep 8, 2025 |
| 144 | — | 0001950047-25-006871 | Sep 9, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001127602-25-021195 | Sep 4, 2025 | Sep 2, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-021194 | Sep 4, 2025 | Sep 2, 2025 |
| N-PX | — | 0001021408-25-004683 | Aug 29, 2025 | Jun 30, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-020604 | Aug 18, 2025 | Aug 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-020602 | Aug 18, 2025 | Aug 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-020601 | Aug 18, 2025 | Aug 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-020600 | Aug 18, 2025 | Aug 14, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-020599 | Aug 18, 2025 | Aug 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-020598 | Aug 18, 2025 | Aug 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-020597 | Aug 18, 2025 | Aug 15, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-020463 | Aug 14, 2025 | Aug 12, 2025 |