Affiliated Managers Group Ownership | Who Owns Affiliated Managers Group?
Affiliated Managers Group Ownership Summary
Affiliated Managers Group is owned by 90.62% institutional investors, 3.71% insiders, and 5.67% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 9.76% of AMG shares. Eaton Vance Atlanta Capital SMID-Cap I is the top mutual fund, with 4.49% of its assets in Affiliated Managers Group shares.
AMG Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Affiliated Managers Group | 90.62% | 3.71% | 5.67% |
| Sector | Financial Services Stocks | 36.95% | 15.48% | 47.58% |
| Industry | Asset Management Stocks | 33.74% | 8.99% | 57.26% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 2.82M | 9.76% | $672.81M |
| Vanguard group | 2.77M | 9.59% | $660.99M |
| Blackrock | 3.08M | 9.39% | $480.97M |
| Morgan stanley | 1.94M | 6.72% | $462.92M |
| Ariel investments | 1.26M | 4.37% | $301.33M |
| Clarkston capital partners | 1.23M | 4.26% | $293.83M |
| Boston partners | 1.16M | 4.00% | $275.96M |
| State street | 963.71K | 3.33% | $229.78M |
| Dimensional fund advisors lp | 684.12K | 2.37% | $163.11M |
| Lyrical asset management lp | 579.84K | 2.01% | $138.25M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Kiltearn partners llp | 283.81K | 13.56% | $67.67M |
| Paragon associates & paragon associates ii joint venture | 22.47K | 9.55% | $5.36M |
| Clarkston capital partners | 1.23M | 6.33% | $293.83M |
| Bruni j v & co /co | 254.99K | 6.14% | $60.80M |
| Goodman financial | 80.26K | 3.73% | $19.14M |
| Ariel investments | 1.26M | 3.22% | $301.33M |
| Channing capital management | 425.04K | 2.67% | $101.34M |
| Wallace capital management | 66.90K | 1.98% | $15.95M |
| Lyrical asset management lp | 579.84K | 1.95% | $138.25M |
| Cwc advisors, llc. | 16.31K | 1.90% | $3.89M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Norges bank | 371.42K | 0.01% | 371.42K |
| Balyasny asset management | 311.38K | 0.09% | 303.42K |
| Alyeska investment group | 295.08K | 0.21% | 295.08K |
| Ubs group | 350.21K | 0.01% | 172.77K |
| Jbf capital | 166.90K | 0.00% | 166.90K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Spyglass capital management | - | - | -328.75K |
| Clarkston capital partners | 1.23M | 6.33% | -203.02K |
| Empirical asset management | - | - | -190.36K |
| Blackrock | 3.08M | 0.01% | -155.93K |
| Great lakes advisors | - | - | -106.27K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 371.42K | 0.01% | 371.42K | $68.68M |
| Alyeska investment group | 295.08K | 0.21% | 295.08K | $70.36M |
| Jbf capital | 166.90K | 0.00% | 166.90K | $700.00 |
| Concentric capital strategies, lp | 60.17K | 0.64% | 60.17K | $14.35M |
| Paragon associates & paragon associates ii joint venture | 22.47K | 9.55% | 22.47K | $5.36M |
Sold Out
| Holder | Change |
|---|---|
| Harbor investment advisory | -1.00 |
| Hexagon capital partners | -1.00 |
| Stephens consulting | -1.00 |
| Tfo-tdc | -2.00 |
| Activest wealth management | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 426 | -2.07% | 26,189,766 | -2.35% | 90 | 1.05% | 191 | -2.05% | 155 | -11.43% |
| Jun 30, 2025 | 430 | 7.23% | 26,778,892 | -1.88% | 92 | 1.06% | 192 | 23.87% | 174 | 3.57% |
| Mar 31, 2025 | 399 | -2.68% | 27,274,363 | -3.85% | 93 | 1.12% | 153 | -10.53% | 168 | 1.20% |
| Dec 31, 2024 | 399 | -6.12% | 28,150,218 | 1.48% | 90 | 1.07% | 163 | -21.26% | 163 | 13.99% |
| Sep 30, 2024 | 422 | 4.20% | 27,639,723 | -5.44% | 91 | 1.07% | 207 | 11.89% | 141 | -9.62% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Eaton Vance Atlanta Capital SMID-Cap I | 1.28M | 4.49% | - |
| Clarkston Capital SMID Composite | 975.92K | 3.43% | -115.45K |
| iShares Core S&P Mid-Cap ETF | 925.37K | 3.26% | - |
| Vanguard US Total Market Shares ETF | 896.64K | 3.12% | -99.37K |
| JHancock Disciplined Value Mid Cap I | 815.91K | 2.87% | - |
| Vanguard Total Stock Mkt Idx Inv | 847.59K | 2.86% | -17.94K |
| Vanguard Small Cap Index | 655.66K | 2.22% | -4.27K |
| FullerThaler Behavioral Sm-Cp Eq R6 | 543.70K | 1.91% | 16.10K |
| FullerThaler Behavioral Small-Cap Equity | 543.70K | 1.91% | 16.10K |
| Ariel Fund Investor | 466.97K | 1.64% | -48.71K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Sep 09, 2025 | Wojcik Thomas M | President and COO | Sell | $3.70M |
| Aug 19, 2024 | Horgen Jay C. | President and CEO | Sell | $1.55M |
| Aug 20, 2024 | Horgen Jay C. | President and CEO | Sell | $1.58M |
| Aug 16, 2024 | Wojcik Thomas M | Chief Operating Officer | Sell | $826.59K |
| Aug 16, 2024 | Jamal Rizwan M | Head of Affiliate Investments | Sell | $1.49M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | - | - |
| 2025 Q3 | - | 1 |
| 2025 Q2 | - | - |
| 2025 Q1 | - | - |
| 2024 Q4 | - | - |
AMG Ownership FAQ
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