Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
650 institutional managers reported holding AER for the quarter ended Mar 31, 2026. Together they hold about 80% of shares outstanding; the top 10 hold 29%. 96 opened new positions; 68 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 12.94M | 7.35% | $1.78B | added +3% | ≤2013 |
| Eagle Capital Management LLC | 7.32M | 4.15% | $1.00B | trimmed -28.1% | 2017 Q4 |
| Harris Associates (Oakmark) | 5.90M | 3.35% | $809.7M | added +1% | 2025 Q4 |
| State Street | 5.09M | 2.89% | $698.9M | unchanged | ≤2013 |
| T. Rowe Price | 4.10M | 2.33% | $562.3M | trimmed -2% | 2017 Q3 |
| Franklin Resources | 3.79M | 2.15% | $519.9M | added +10.9% | 2020 Q4 |
| Two Sigma | 3.54M | 2.01% | $485.1M | added +129.7% | 2023 Q1 |
| Donald Smith & CO., INC. | 3.15M | 1.79% | $432.3M | added +2.2% | ≤2013 |
| 59 North Capital Management, LP (focused) | 3.12M | 1.77% | $428.5M | trimmed -5.7% | 2023 Q1 |
| Ninety One UK LTD | 2.81M | 1.60% | $385.6M | unchanged | 2020 Q1 |
| Mawer Investment Management LTD. | 2.68M | 1.52% | $367.7M | trimmed -18.1% | 2025 Q2 |
| Lyrical Asset Management LP (focused) | 2.60M | 1.48% | $357.0M | trimmed -6.5% | ≤2013 |
| London CO OF Virginia | 2.54M | 1.45% | $349.0M | trimmed -7.9% | 2021 Q3 |
| WGI DM, LLC (focused) | 2.47M | 1.40% | $338.5M | trimmed -4.6% | 2025 Q4 |
| Allspring Global Investments Holdings, LLC | 2.41M | 1.37% | $330.7M | trimmed -12.5% | 2021 Q4 |
| UBS | 2.39M | 1.36% | $328.4M | trimmed -23.4% | ≤2013 |
| Amundi | 2.09M | 1.19% | $286.5M | trimmed -9.3% | 2017 Q4 |
| Wellington Management | 1.86M | 1.06% | $255.8M | trimmed -9.2% | ≤2013 |
| Morgan Stanley | 1.84M | 1.04% | $252.5M | added +5.4% | ≤2013 |
| Lord, Abbett & CO. LLC | 1.77M | 1.00% | $242.2M | trimmed -1.6% | 2021 Q1 |
| Ameriprise Financial INC | 1.66M | 0.94% | $228.0M | trimmed -13% | ≤2013 |
| Geode Capital | 1.57M | 0.89% | $214.8M | trimmed -3.2% | 2015 Q2 |
| Bank OF America CORP /DE/ | 1.54M | 0.88% | $211.9M | trimmed -5% | ≤2013 |
| AustralianSuper Pty LTD | 1.45M | 0.82% | $198.8M | added +4.2% | 2024 Q2 |
| Toms Capital Investment Management LP (focused) | 1.39M | 0.79% | $191.3M | opened | 2026 Q1 |
| L1 Capital International Pty LTD (focused) | 1.34M | 0.76% | $184.5M | trimmed -11.9% | 2024 Q1 |
| Deutsche Bank AG\ | 1.23M | 0.70% | $168.8M | added +9.8% | 2013 Q3 |
| High Ground Investment Management LLP (focused) | 1.21M | 0.69% | $166.2M | added +3% | 2025 Q3 |
| Northern Trust | 1.21M | 0.69% | $166.1M | trimmed -3.1% | ≤2013 |
| Legal & General Group PLC | 1.17M | 0.66% | $159.9M | added +0.8% | 2016 Q4 |
| Qube Research & Technologies LTD | 1.14M | 0.65% | $156.7M | trimmed -6.2% | 2023 Q1 |
| MBB Public Markets I LLC (focused) | 1.13M | 0.64% | $155.5M | unchanged | 2025 Q1 |
| Dorsey Asset Management, LLC (focused) | 1.12M | 0.64% | $154.1M | trimmed -7.5% | 2025 Q1 |
| Neuberger Berman Group LLC | 1.07M | 0.61% | $147.2M | trimmed -17% | 2014 Q2 |
| Avantyr Capital Partners, LP (focused) | 1.06M | 0.60% | $145.4M | added +45.8% | 2025 Q4 |
| Thompson Siegel & Walmsley LLC | 1.01M | 0.57% | $139.0M | trimmed -4.1% | 2017 Q1 |
| Empyrean Capital Partners, LP | 1.00M | 0.57% | $137.2M | trimmed -9.1% | 2020 Q4 |
| KBC Group NV | 982.0k | 0.56% | $134.7M | added +1.2% | 2022 Q1 |
| Slate Path Capital LP (focused) | 974.5k | 0.55% | $133.7M | added +3.9% | 2023 Q3 |
| Cooke & Bieler LP | 936.3k | 0.53% | $128.5M | trimmed -10.3% | ≤2013 |
| Russell Investments Group, LTD. | 931.5k | 0.53% | $127.8M | trimmed -8.3% | 2016 Q4 |
| Tidal Investments LLC | 909.3k | 0.52% | $124.8M | added +785.2% | 2024 Q2 |
| CapitalatWork S.a. | 839.1k | 0.48% | $115.1M | opened | 2026 Q1 |
| Rockefeller Capital Management L.p. | 838.4k | 0.48% | $115.0M | trimmed -1.2% | 2019 Q1 |
| Assenagon Asset Management S.a. | 835.7k | 0.47% | $114.7M | trimmed -38.6% | 2020 Q3 |
| Check Capital Management INC/CA (focused) | 817.7k | 0.46% | $112.2M | trimmed -1.2% | 2021 Q1 |
| Goldman Sachs | 771.3k | 0.44% | $105.8M | trimmed -38.2% | 2013 Q4 |
| SEI Investments CO | 769.6k | 0.44% | $105.6M | added +23.2% | ≤2013 |
| FMR (Fidelity) | 747.7k | 0.42% | $102.6M | added +23.1% | ≤2013 |
| Invesco | 727.3k | 0.41% | $99.8M | added +36.2% | ≤2013 |
Largest 50 of 650 shown; the full ranked, searchable register is at boothcheck.com/holders/AER. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.