Affiliated Managers Group, Inc. (AMG) SEC filings and CIK.
AMG’s SEC Central Index Key (CIK) is 0001004434, or 1004434 without leading zeros. The SEC’s ticker file lists it as AFFILIATED MANAGERS GROUP, INC.. The same CIK also trades as MGRE, MGRD, MGR, MGRB.
- Ticker
- AMG
- CIK
- 0001004434
- Other tickers
- MGRE, MGRD, MGR, MGRB
- Insider transactions, Q3 2026
- 5
Insider trading
In Q3 2026, insiders at Affiliated Managers Group, Inc. reported 5 non-derivative transactions on 11 Forms 3, 4 and 5, including 0 open-market purchases and 0 sales. See every AMG insider transaction →
Recent filings we observed
| Filed | Form | Accession |
|---|---|---|
| 2026-11-09 | 10-Q | 0001628280-26-072209 |
| 2026-11-09 | 8-K | 0001628280-26-071872 |
Get AMG SEC data through the API
curl "https://sec-api.dev/api/v1/filings?cik=1004434&limit=10" \
-H "Authorization: Bearer $SEC_API_KEY"curl "https://sec-api.dev/api/v1/companies/1004434" \
-H "Authorization: Bearer $SEC_API_KEY"curl "https://sec-api.dev/api/v1/facts/1004434?taxonomy=us-gaap&concept=Revenues&limit=10" \
-H "Authorization: Bearer $SEC_API_KEY"Ticker to CIK API · SEC filings API · Affiliated Managers Group, Inc. on SEC.gov
Questions
What is AMG’s CIK number?
AMG’s SEC Central Index Key (CIK) is 0001004434, or 1004434 without leading zeros. The SEC’s ticker file lists it as AFFILIATED MANAGERS GROUP, INC.. The same CIK also trades as MGRE, MGRD, MGR, MGRB.
How do I find Affiliated Managers Group, Inc.’s 10-K?
Request /api/v1/filings?cik=1004434&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.
Plain-text version for agents and LLMs: /companies/amg.md
Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.