AMG
Affiliated Managers Group, Inc. · Financial Services · Asset Management
Momentum inputs (comparable managers):
holder breadth -12.5% ·
share flow +28.3% ·
net new positions -14.3%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 129 | +3 | 17.10M | $5.77B | +7 | −3 |
| Q1 2026 | 128 | +1 | 16.42M | $4.54B | +8 | −8 |
| Q4 2025 | 127 | -3 | 18.54M | $5.34B | +1 | −3 |
| Q3 2025 | 21 | +1 | 11.85M | $2.83B | +1 | −1 |
| Q2 2025 | 18 | +1 | 10.55M | $2.08B | +2 | −1 |
| Q1 2025 | 14 | -2 | 4.13M | $694.77M | — | −2 |
| Q4 2024 | 16 | +2 | 3.22M | $596.17M | +2 | — |
| Q3 2024 | 13 | -1 | 2.02M | $359.10M | — | −1 |
| Q2 2024 | 14 | — | 2.26M | $353.66M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Millennium Management ✦ | 1.27M | +314.3% | $212.67M | 0.2% | ▲ Add | 4 | SEC ↗ |
| 2 | State Street Global Advisors ✦ (passive) | 997.93K | -2.4% | $167.68M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 542.69K | +4.1% | $91.22M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 542.69K | +4.1% | $91.22M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | Citadel Advisors ✦ | 354.83K | +1.1% | $59.62M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 6 | Norges Bank ✦ (passive) | 352.68K | -5.0% | $59.26M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | T. Rowe Price ✦ | 232.98K | +2.5% | $39.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | T. Rowe Price ✦ | 232.98K | +2.5% | $39.15M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 9 | Fisher Asset Management ✦ | 168.78K | +8.1% | $28.36M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | Bridgewater Associates ✦ | 81.11K | +16.1% | $13.63M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 11 | D. E. Shaw & Co. ✦ | 53.24K | -24.1% | $8.95M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | Renaissance Technologies ✦ | 47.00K | +3.5% | $7.90M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | Arrowstreet Capital ✦ | 24.86K | 0.0% | $4.18M | 0.0% | Held | 4 | SEC ↗ |
| 14 | Wellington Management ✦ | 7.24K | -5.4% | $1.22M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 15 | Dodge & Cox ✦ | 3.00K | -53.9% | $504,090 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | GAMCO Investors ✦ | 2.61K | +0.5% | $439,230 | 0.0% | ▲ Add | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Two Sigma Investments | $3.99M | was 0.0% |
| Marshall Wace | $3.63M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 2 holders, 327 shares, $6,410 reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.