AMG
Affiliated Managers Group, Inc. has filed 1,777 documents with the SEC between 1997 and 2026. The most frequent type is insider trade (861 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Passive ownership stake (update) | SC 13G/A | 2003-02-13 | - |
| Passive ownership stake (update) | SC 13G/A | 2003-02-13 | - |
| Passive ownership stake (update) | SC 13G/A | 2003-02-10 | - |
| Major company event | 8-K | 2003-01-30 | 2003-01-29 |
| Quarterly report | 10-Q | 2002-11-14 | 2002-09-30 |
| Major company event | 8-K | 2002-11-14 | 2002-11-14 |
| 13F-NT | - | 2002-11-12 | 2002-09-30 |
| Major company event | 8-K | 2002-10-24 | 2002-10-23 |
| Employee stock plan | S-8 | 2002-10-18 | - |
| Major company event | 8-K | 2002-08-28 | 2002-08-08 |
| 13F-NT | - | 2002-08-14 | 2002-06-30 |
| Major company event | 8-K | 2002-08-14 | 2002-08-13 |
| Quarterly report | 10-Q | 2002-08-14 | 2002-06-30 |
| Major company event | 8-K | 2002-07-30 | 2002-07-24 |
| Major company event | 8-K | 2002-07-12 | 2002-04-24 |
| Quarterly report | 10-Q | 2002-05-15 | 2002-03-31 |
| 13F-NT | - | 2002-05-15 | 2002-03-31 |
| 424B3 | - | 2002-05-07 | - |
| Proxy statement | DEF 14A | 2002-04-30 | 2002-06-04 |
| Annual report | 10-K | 2002-04-01 | 2001-12-31 |
| Major company event | 8-K | 2002-02-22 | 2002-01-23 |
| Passive ownership stake | SC 13G | 2002-02-14 | - |
| 13F-NT | - | 2002-02-14 | 2001-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2002-02-14 | - |
| Passive ownership stake | SC 13G | 2002-02-08 | - |
| Major company event (amended) | 8-K/A | 2002-01-14 | 2001-10-31 |
| Major company event | 8-K | 2001-12-31 | 2001-12-21 |
| 8-A12B | - | 2001-12-21 | - |
| Prospectus supplement | 424B5 | 2001-12-20 | - |
| 424B3 | - | 2001-12-19 | - |
| 305B2 | - | 2001-12-18 | - |
| Securities registration | S-3 | 2001-12-05 | - |
| Major company event | 8-K | 2001-11-15 | 2001-10-31 |
| Major company event | 8-K | 2001-11-15 | 2001-10-24 |
| Quarterly report | 10-Q | 2001-11-14 | 2001-09-30 |
| 13F-NT | - | 2001-11-14 | 2001-09-30 |
| 424B3 | - | 2001-10-15 | - |
| Major company event | 8-K | 2001-09-20 | 2001-08-29 |
| 424B3 | - | 2001-08-31 | - |
| Major company event | 8-K | 2001-08-20 | 2001-07-25 |
| Major company event | 8-K | 2001-08-20 | 2001-07-31 |
| 13F-NT | - | 2001-08-17 | 2001-06-30 |
| Quarterly report | 10-Q | 2001-08-14 | 2001-06-30 |
| 424B3 | - | 2001-08-03 | - |
| 424B3 | - | 2001-07-23 | - |
| 424B3 | - | 2001-07-12 | - |
| 424B3 | - | 2001-06-28 | - |
| S-3/A | - | 2001-06-15 | - |
| Securities registration | S-3 | 2001-06-01 | - |
| Quarterly report | 10-Q | 2001-05-15 | 2001-03-31 |