Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
435 institutional managers reported holding AMRZ for the quarter ended Mar 31, 2026. Together they hold about 43% of shares outstanding; the top 10 hold 21%. 103 opened new positions; 51 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 31.60M | 5.71% | $1.77B | trimmed -0.5% | 2025 Q2 |
| BlackRock | 15.43M | 2.79% | $864.3M | added +8.7% | 2025 Q2 |
| DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 12.01M | 2.17% | $672.6M | added +24.3% | 2025 Q2 |
| UBS | 11.94M | 2.16% | $668.7M | trimmed -16.9% | 2025 Q2 |
| Harris Associates (Oakmark) | 11.34M | 2.05% | $635.4M | unchanged | 2025 Q4 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 10.68M | 1.93% | $598.2M | added +10.4% | 2025 Q2 |
| First Manhattan CO. LLC. | 7.08M | 1.28% | $396.8M | trimmed -4.8% | 2025 Q2 |
| Wellington Management | 6.71M | 1.21% | $375.9M | trimmed -47.2% | 2025 Q2 |
| Geode Capital | 6.28M | 1.14% | $351.6M | added +3% | 2025 Q2 |
| Pictet Asset Management Holding SA | 5.22M | 0.94% | $292.2M | added +4.7% | 2025 Q2 |
| Allspring Global Investments Holdings, LLC | 4.77M | 0.86% | $267.3M | added +3.7% | 2025 Q2 |
| State Street | 4.61M | 0.83% | $258.1M | added +5.1% | 2025 Q3 |
| Mirae Asset Global Etfs Holdings LTD. | 4.07M | 0.73% | $227.7M | added +63112.1% | 2025 Q3 |
| Vontobel Holding LTD. | 4.06M | 0.73% | $227.5M | trimmed -11.7% | 2025 Q2 |
| Victory Capital Management INC | 3.89M | 0.70% | $217.7M | opened | 2026 Q1 |
| Slate Path Capital LP (focused) | 3.75M | 0.68% | $210.2M | trimmed -35.9% | 2025 Q3 |
| American Century Companies INC | 3.68M | 0.67% | $205.9M | added +69.2% | 2025 Q4 |
| FMR (Fidelity) | 3.58M | 0.65% | $200.3M | trimmed -28.7% | 2025 Q3 |
| Deutsche Bank AG\ | 3.04M | 0.55% | $170.3M | trimmed -3% | 2025 Q2 |
| Legal & General Group PLC | 2.67M | 0.48% | $149.4M | trimmed -0.5% | 2025 Q2 |
| Gates Capital Management, INC. (focused) | 2.41M | 0.44% | $135.1M | trimmed -1.3% | 2025 Q2 |
| River Road Asset Management, LLC | 2.24M | 0.41% | $125.6M | trimmed -22.2% | 2025 Q2 |
| Jane Street | 2.24M | 0.41% | $125.6M | added +1775.8% | 2025 Q2 |
| Citigroup INC | 2.22M | 0.40% | $124.6M | added +32.4% | 2025 Q2 |
| Barclays PLC | 2.16M | 0.39% | $120.8M | trimmed -53.3% | 2025 Q2 |
| Bank Julius Baer & CO. LTD, Zurich | 2.04M | 0.37% | $114.3M | trimmed -5.7% | 2025 Q2 |
| Two Sigma | 1.96M | 0.35% | $109.6M | added +49.6% | 2025 Q2 |
| Renaissance Technologies | 1.96M | 0.35% | $109.6M | added +10.4% | 2025 Q3 |
| Northern Trust | 1.79M | 0.32% | $100.1M | added +1.6% | 2025 Q3 |
| Bank OF America CORP /DE/ | 1.76M | 0.32% | $98.5M | trimmed -26.6% | 2025 Q2 |
| FIL LTD | 1.71M | 0.31% | $95.9M | added +4.4% | 2025 Q2 |
| Charles Schwab Investment Management | 1.69M | 0.30% | $94.5M | added +5% | 2025 Q2 |
| Amundi | 1.65M | 0.30% | $92.7M | added +30.9% | 2025 Q3 |
| Goldman Sachs | 1.60M | 0.29% | $89.4M | trimmed -25.2% | 2025 Q2 |
| Marshall Wace | 1.55M | 0.28% | $86.7M | trimmed -33.8% | 2025 Q2 |
| Swiss National Bank | 1.46M | 0.26% | $81.8M | added +7.1% | 2025 Q4 |
| 1832 Asset Management L.p. | 1.40M | 0.25% | $78.4M | unchanged | 2025 Q3 |
| National Pension Service | 1.39M | 0.25% | $77.8M | trimmed -14.4% | 2025 Q4 |
| SIH Partners, Lllp | 1.34M | 0.24% | $75.3M | trimmed -16.9% | 2025 Q2 |
| Vaughan Nelson Investment Management, L.p. | 1.27M | 0.23% | $71.3M | added +8.4% | 2025 Q3 |
| Millennium Management | 1.13M | 0.20% | $63.5M | added +115.1% | 2025 Q2 |
| DJE Kapital AG | 1.11M | 0.20% | $62.3M | added +45.9% | 2025 Q2 |
| Cambiar Investors LLC | 1.06M | 0.19% | $59.2M | trimmed -3% | 2025 Q3 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 1.04M | 0.19% | $58.2M | trimmed -7.2% | 2025 Q2 |
| Morgan Stanley | 981.1k | 0.18% | $54.9M | trimmed -38.5% | 2025 Q2 |
| Shapiro Capital Management LLC (focused) | 957.8k | 0.17% | $53.6M | added +12% | 2025 Q4 |
| Permian Investment Partners, LP (focused) | 950.0k | 0.17% | $53.2M | trimmed -3.4% | 2025 Q4 |
| Banque Cantonale Vaudoise | 941.5k | 0.17% | $52.7M | added +16.9% | 2025 Q3 |
| Cooperman Leon G (focused) | 880.0k | 0.16% | $49.3M | unchanged | 2025 Q3 |
| Artisan Partners | 815.9k | 0.15% | $45.7M | trimmed -6.8% | 2025 Q2 |
Largest 50 of 435 shown; the full ranked, searchable register is at boothcheck.com/holders/AMRZ. 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.