Affiliated Managers Group (AMG)
INVESTMENT ADVICE
Affiliated Managers Group (AMG) is listed on the New York Stock Exchange, where it has traded since November 21, 1997.
- Listed On
- the New York Stock Exchange
- Listed Since
- November 21, 1997
- Employees
- 5,600
- Market Cap
- $9.9B
About Affiliated Managers Group
Affiliated Managers Group offers investment strategies to investors through its network of affiliates. The firm typically buys a majority interest in small to mid-size boutique asset managers, receiving a fixed percentage of revenue from these firms in return. Affiliates operate independently, with AMG providing strategic, operational, and technology support, as well as global distribution. At the end of June 2026, AMG's affiliate network—which includes firms like Abacus Capital and Pantheon dedicated to private markets (which accounted for 16% of AUM), AQR Capital and Capula Investment Management in liquid alternatives (31%), and Harding Loevner, Tweedy Browne, Parnassus, and Yacktman in equities, multi-asset, and bond strategies (53%)—had $942.4 billion in managed assets.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 553 institutions reported holding AMG, with 25.2 million shares worth $8.5 billion in aggregate. The largest reported holder was BlackRock, with 2.8 million shares worth $938.3 million. Of the 5 largest holders listed below, 2 added shares and 3 reduced their positions during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| BlackRock | 2,772,736 | $938M | Reduced 3.31% |
| Vanguard | 2,766,131 | $936M | Added 0.05% |
| Morgan Stanley | 1,487,219 | $503M | Reduced 14.16% |
| Boston Partners | 1,001,967 | $339M | Added 3.16% |
| Ariel Investments | 999,676 | $338M | Reduced 6.05% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is AMG?
Affiliated Managers Group (AMG) is listed on the New York Stock Exchange, where it has traded since November 21, 1997.
Who are the largest institutional holders of AMG?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of AMG were BlackRock, Vanguard and Morgan Stanley.
How many institutions own AMG?
553 institutions reported a position in AMG for the quarter ended June 30, 2026, worth $8.5 billion in total.
Did institutions buy or sell AMG last quarter?
Of the 5 largest reported holders, 2 added shares and 3 reduced their positions during the quarter. Every reported holder and its change is on the SentiSense ownership page for AMG.
Every reported institutional holder, plus insider and congressional trades in AMG, on SentiSense.