Affiliated Managers Group, Inc. SEC filings AMG
Affiliated Managers Group, Inc. has 1,000 filings in SEC EDGAR's recent list, going back to May 7, 2013. Its latest annual report, Form ARS, was filed on Apr 17, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 7, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Jul 30, 2026 (results of operations, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B5 | Prospectus supplement | Dec 10, 2025 | — |
| FWP | Free writing prospectus | Dec 8, 2025 | — |
| 424B5 | Prospectus supplement | Dec 8, 2025 | — |
| 424B5 | Prospectus supplement | Mar 7, 2025 | — |
| S-3ASR | Automatic shelf registration | Feb 28, 2025 | — |
| 424B5 | Prospectus supplement | Aug 16, 2024 | — |
| FWP | Free writing prospectus | Aug 16, 2024 | — |
| 424B5 | Prospectus supplement | Aug 15, 2024 | — |
| 424B5 | Prospectus supplement | Mar 15, 2024 | — |
| FWP | Free writing prospectus | Mar 15, 2024 | — |
| 424B3 | Prospectus | Mar 14, 2024 | — |
| 424B5 | Prospectus supplement | May 27, 2022 | — |
| S-3ASR | Automatic shelf registration | Mar 1, 2022 | — |
| 424B5 | Prospectus supplement | Jul 9, 2021 | — |
| FWP | Free writing prospectus | Jul 8, 2021 | — |
| 424B5 | Prospectus supplement | Jul 8, 2021 | — |
| 424B5 | Prospectus supplement | Sep 18, 2020 | — |
| FWP | Free writing prospectus | Sep 18, 2020 | — |
| 424B5 | Prospectus supplement | Sep 17, 2020 | — |
| S-8 | Employee stock plan registration | Jul 24, 2020 | — |
| 424B5 | Prospectus supplement | Jun 3, 2020 | — |
| FWP | Free writing prospectus | Jun 3, 2020 | — |
| 424B5 | Prospectus supplement | Jun 2, 2020 | — |
| 424B5 | Prospectus supplement | Mar 27, 2019 | — |
| 424B5 | Prospectus supplement | Mar 22, 2019 | — |
| FWP | Free writing prospectus | Mar 22, 2019 | — |
| 424B5 | Prospectus supplement | Mar 21, 2019 | — |
| S-3ASR | Automatic shelf registration | Mar 21, 2019 | — |
| 424B5 | Prospectus supplement | Aug 17, 2016 | — |
| 424B5 | Prospectus supplement | Jun 8, 2016 | — |
| 424B5 | Prospectus supplement | Jun 7, 2016 | — |
| 424B5 | Prospectus supplement | Jun 6, 2016 | — |
| S-3ASR | Automatic shelf registration | Apr 19, 2016 | — |
| 424B2 | Prospectus | Feb 11, 2015 | — |
| FWP | Free writing prospectus | Feb 11, 2015 | — |
| 424B2 | Prospectus | Feb 10, 2015 | — |
| 424B2 | Prospectus | Feb 7, 2014 | — |
| FWP | Free writing prospectus | Feb 7, 2014 | — |
| 424B2 | Prospectus | Feb 6, 2014 | — |
| S-8 | Employee stock plan registration | Aug 6, 2013 | — |
| 424B5 | Prospectus supplement | Aug 6, 2013 | — |
| S-3ASR | Automatic shelf registration | Aug 6, 2013 | — |
Showing 42 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Investment Advice (SIC 6282)
- Listed as
- AMG (NYSE), MGR (NYSE), MGRB (NYSE), MGRD (NYSE), MGRE (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Jupiter, FL
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1004434
- Former names
- AFFILIATED MANAGERS GROUP INC (until Sep 20, 2013)
Other Investment Advice companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.