Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
447 institutional managers reported holding AMH for the quarter ended Mar 31, 2026. Together they hold about 82% of shares outstanding; the top 10 hold 46%. 74 opened new positions; 95 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 46.11M | 12.65% | $1.29B | added +3% | 2013 Q3 |
| BlackRock | 44.48M | 12.20% | $1.24B | added +0.9% | 2013 Q3 |
| Principal Financial Group INC | 18.94M | 5.20% | $528.4M | added +19.8% | 2015 Q4 |
| State Street | 16.22M | 4.45% | $452.5M | trimmed -12.1% | 2013 Q3 |
| FMR (Fidelity) | 9.29M | 2.55% | $259.2M | added +1.8% | 2014 Q1 |
| Geode Capital | 7.55M | 2.07% | $210.7M | added +2.7% | 2013 Q3 |
| UBS | 7.19M | 1.97% | $200.5M | added +78.7% | 2013 Q3 |
| Centersquare Investment Management LLC | 5.97M | 1.64% | $166.5M | trimmed -2.7% | 2018 Q1 |
| T. Rowe Price | 5.67M | 1.56% | $158.2M | trimmed -1.4% | 2014 Q3 |
| Charles Schwab Investment Management | 5.09M | 1.40% | $142.0M | added +6.4% | 2013 Q3 |
| Dimensional Fund Advisors | 4.91M | 1.35% | $137.0M | unchanged | 2015 Q2 |
| AQR Capital | 4.81M | 1.32% | $134.1M | added +54.5% | 2015 Q3 |
| Duff & Phelps Investment Management CO | 4.58M | 1.26% | $127.7M | unchanged | 2015 Q2 |
| Goldman Sachs | 4.13M | 1.13% | $115.1M | added +25.3% | 2013 Q3 |
| Bank OF Montreal /CAN/ | 4.01M | 1.10% | $111.9M | trimmed -12.8% | 2014 Q2 |
| Invesco | 3.94M | 1.08% | $110.0M | trimmed -36% | 2014 Q1 |
| Nuveen | 3.77M | 1.03% | $105.3M | added +11.3% | 2014 Q1 |
| Lasalle Investment Management Securities LLC (focused) | 3.63M | 1.00% | $101.4M | added +18.9% | 2025 Q1 |
| Arrowstreet Capital | 3.54M | 0.97% | $98.9M | added +83.1% | 2024 Q3 |
| Northern Trust | 3.39M | 0.93% | $94.6M | trimmed -10.3% | 2013 Q3 |
| Cbre Investment Management Listed Real Assets LLC | 3.25M | 0.89% | $90.7M | trimmed -33% | 2019 Q4 |
| CI Investments INC. | 2.96M | 0.81% | $82.6M | added +20.1% | 2017 Q2 |
| BNY Mellon | 2.79M | 0.76% | $77.7M | trimmed -6.6% | 2013 Q3 |
| Millennium Management | 2.74M | 0.75% | $76.5M | added +27.8% | 2014 Q1 |
| MFS Investment Management | 2.61M | 0.72% | $72.8M | trimmed -6.9% | 2016 Q4 |
| Qube Research & Technologies LTD | 2.42M | 0.66% | $67.4M | opened | 2023 Q4 |
| Sumitomo Mitsui Trust Group, INC. | 2.23M | 0.61% | $62.2M | trimmed -12.1% | 2013 Q3 |
| Deutsche Bank AG\ | 1.95M | 0.54% | $54.5M | trimmed -22.6% | 2013 Q3 |
| Legal & General Group PLC | 1.95M | 0.54% | $54.5M | trimmed -21% | 2013 Q3 |
| BNP Paribas Financial Markets | 1.90M | 0.52% | $52.9M | added +44.5% | 2014 Q4 |
| Russell Investments Group, LTD. | 1.78M | 0.49% | $49.8M | trimmed -9.2% | 2016 Q4 |
| Morgan Stanley | 1.74M | 0.48% | $48.6M | trimmed -28.3% | 2013 Q3 |
| Pggm Investments | 1.68M | 0.46% | $46.9M | opened | 2026 Q1 |
| AEW Capital Management L P (focused) | 1.66M | 0.46% | $46.3M | trimmed -11.4% | 2013 Q3 |
| Bank OF America CORP /DE/ | 1.61M | 0.44% | $44.9M | added +69% | 2013 Q3 |
| Clearbridge Investments, LLC | 1.58M | 0.43% | $44.0M | trimmed -36.6% | 2015 Q2 |
| D. E. Shaw | 1.46M | 0.40% | $40.7M | opened | 2023 Q2 |
| Quantinno Capital Management LP | 1.36M | 0.37% | $37.9M | added +76.1% | 2024 Q1 |
| Holocene Advisors | 1.36M | 0.37% | $37.9M | added +135.7% | 2024 Q4 |
| First Trust Advisors LP | 1.31M | 0.36% | $36.7M | added +11.1% | 2013 Q3 |
| Balyasny Asset Management | 1.11M | 0.31% | $31.1M | opened | 2026 Q1 |
| Long Pond Capital, LP (focused) | 1.11M | 0.30% | $31.0M | opened | 2025 Q3 |
| Prana Capital Management, LP | 1.05M | 0.29% | $29.4M | opened | 2026 Q1 |
| Tudor Investment | 1.01M | 0.28% | $28.1M | added +470.3% | 2025 Q2 |
| Woodline Partners LP | 1.00M | 0.28% | $27.9M | opened | 2026 Q1 |
| Voloridge Investment Management | 985.3k | 0.27% | $27.5M | added +20.3% | 2024 Q3 |
| Rhumbline Advisers | 947.4k | 0.26% | $26.4M | trimmed -3% | 2013 Q4 |
| Schroder Investment Management Group | 930.4k | 0.26% | $26.0M | trimmed -31.6% | 2016 Q4 |
| Apollo Management | 924.1k | 0.25% | $25.8M | added +69% | 2025 Q4 |
| Retirement Systems of Alabama | 916.1k | 0.25% | $25.6M | added +0.9% | 2024 Q1 |
Largest 50 of 447 shown; the full ranked, searchable register is at boothcheck.com/holders/AMH. 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.