Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
662 institutional managers reported holding ALGN for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 47%. 107 opened new positions; 99 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 8.15M | 11.38% | $1.40B | unchanged | ≤2013 |
| BlackRock | 4.29M | 5.99% | $735.3M | trimmed -1.6% | ≤2013 |
| Capital Group (American Funds) | 4.07M | 5.69% | $698.0M | added +173.2% | 2020 Q4 |
| Capital International Investors | 3.81M | 5.32% | $652.9M | trimmed -18% | 2025 Q2 |
| FMR (Fidelity) | 2.70M | 3.77% | $462.9M | added +35% | ≤2013 |
| State Street | 2.52M | 3.51% | $431.3M | unchanged | ≤2013 |
| Ninety One UK LTD | 2.23M | 3.11% | $381.9M | unchanged | 2020 Q1 |
| UBS | 2.03M | 2.84% | $348.1M | added +186% | ≤2013 |
| Kayne Anderson Rudnick Investment Management LLC | 1.90M | 2.66% | $326.2M | added +150.1% | 2022 Q4 |
| Goldman Sachs | 1.80M | 2.51% | $307.9M | added +133.4% | ≤2013 |
| Geode Capital | 1.79M | 2.50% | $306.9M | added +1.8% | ≤2013 |
| Invesco | 1.31M | 1.83% | $225.0M | added +3.7% | ≤2013 |
| Ruane Cunniff (Sequoia) (focused) | 1.21M | 1.69% | $206.8M | trimmed -1.3% | 2025 Q4 |
| Arrowstreet Capital | 1.05M | 1.47% | $180.8M | added +4.9% | 2025 Q1 |
| Jacobs Levy Equity Management, INC | 1.03M | 1.44% | $176.8M | added +2.5% | 2022 Q1 |
| Morgan Stanley | 1.01M | 1.42% | $173.7M | added +7.2% | ≤2013 |
| Assenagon Asset Management S.a. | 989.4k | 1.38% | $169.6M | added +413% | 2020 Q1 |
| Dimensional Fund Advisors | 972.5k | 1.36% | $166.7M | added +21.3% | ≤2013 |
| AQR Capital | 893.2k | 1.25% | $153.1M | trimmed -25.3% | ≤2013 |
| Disciplined Growth Investors INC /MN | 775.8k | 1.08% | $133.0M | trimmed -5.5% | ≤2013 |
| Senvest Management, LLC (focused) | 754.8k | 1.05% | $129.4M | added +8.6% | 2024 Q1 |
| Citadel Advisors | 730.0k | 1.02% | $125.1M | added +40.3% | ≤2013 |
| Barclays PLC | 702.5k | 0.98% | $120.4M | added +209.5% | ≤2013 |
| Swedbank Robur | 690.2k | 0.96% | $118.3M | added +8.5% | 2021 Q1 |
| Charles Schwab Investment Management | 643.5k | 0.90% | $110.3M | added +2.7% | ≤2013 |
| Mackenzie Financial CORP | 580.7k | 0.81% | $99.5M | trimmed -12.2% | 2019 Q4 |
| Northern Trust | 569.4k | 0.80% | $97.6M | unchanged | ≤2013 |
| LSV Asset Management | 565.2k | 0.79% | $96.9M | added +6.8% | 2025 Q4 |
| Pacer Advisors, INC. | 519.1k | 0.72% | $89.0M | added +7.9% | 2016 Q1 |
| Federated Hermes, INC. | 493.3k | 0.69% | $84.6M | trimmed -5.2% | 2013 Q3 |
| Bank OF America CORP /DE/ | 482.4k | 0.67% | $82.7M | trimmed -47.7% | ≤2013 |
| Jennison Associates LLC | 453.2k | 0.63% | $77.7M | added +203% | 2025 Q4 |
| Brown Advisory INC | 434.1k | 0.61% | $74.4M | unchanged | ≤2013 |
| Nomura Asset Management International INC. | 421.5k | 0.59% | $72.3M | trimmed -12.8% | 2023 Q4 |
| BNY Mellon | 399.5k | 0.56% | $68.5M | added +2.6% | ≤2013 |
| Davenport & CO LLC | 396.9k | 0.55% | $68.0M | added +6.2% | 2019 Q4 |
| Nordea Investment Management AB | 385.7k | 0.54% | $66.1M | trimmed -17.5% | 2016 Q2 |
| Amundi | 358.7k | 0.50% | $61.5M | trimmed -36% | ≤2013 |
| Wells Fargo & COMPANY/MN | 328.1k | 0.46% | $56.2M | added +151.8% | ≤2013 |
| Voya Investment Management LLC | 308.1k | 0.43% | $52.8M | added +58.4% | ≤2013 |
| Resona Asset Management CO.,LTD. | 294.5k | 0.41% | $50.5M | trimmed -15.6% | 2024 Q1 |
| Keybank National ASSOCIATION/OH | 281.4k | 0.39% | $48.2M | unchanged | 2017 Q2 |
| Manufacturers Life Insurance Company, THE | 273.9k | 0.38% | $47.0M | trimmed -2.9% | ≤2013 |
| AllianceBernstein | 232.5k | 0.33% | $39.8M | added +28.2% | ≤2013 |
| SG Americas Securities, LLC | 232.4k | 0.33% | $39.8M | added +67.8% | 2013 Q3 |
| Factory Mutual Insurance CO | 228.7k | 0.32% | $39.2M | added +56% | 2021 Q4 |
| Deutsche Bank AG\ | 226.2k | 0.32% | $38.8M | added +2.2% | ≤2013 |
| Russell Investments Group, LTD. | 219.7k | 0.31% | $37.7M | added +22.1% | 2016 Q4 |
| Artisan Partners | 217.2k | 0.30% | $37.2M | trimmed -6.2% | 2025 Q2 |
| VAN Lanschot Kempen Investment Management N.v. | 211.9k | 0.30% | $36.3M | trimmed -6.5% | 2023 Q1 |
Largest 50 of 662 shown; the full ranked, searchable register is at boothcheck.com/holders/ALGN. 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.