Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
305 institutional managers reported holding AI for the quarter ended Mar 31, 2026. Together they hold about 59% of shares outstanding; the top 10 hold 38%. 47 opened new positions; 78 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 15.47M | 10.90% | $130.2M | added +6.9% | ≤2013 |
| BlackRock | 12.21M | 8.60% | $102.8M | added +7.1% | ≤2013 |
| Morgan Stanley | 5.73M | 4.03% | $48.2M | added +18.7% | ≤2013 |
| Goldman Sachs | 3.84M | 2.71% | $32.3M | added +15.4% | 2014 Q4 |
| Bank OF America CORP /DE/ | 3.28M | 2.31% | $27.6M | added +55.1% | ≤2013 |
| State Street | 3.15M | 2.22% | $26.5M | added +5.9% | 2015 Q4 |
| Geode Capital | 2.93M | 2.06% | $24.6M | added +2% | ≤2013 |
| Millennium Management | 2.85M | 2.01% | $24.0M | added +178.9% | 2019 Q4 |
| Mirae Asset Global Etfs Holdings LTD. | 2.37M | 1.67% | $19.9M | trimmed -8.7% | 2021 Q2 |
| Marshall Wace | 2.25M | 1.58% | $18.9M | added +121.5% | 2024 Q3 |
| UBS | 2.00M | 1.41% | $16.9M | added +124.3% | ≤2013 |
| BNP Paribas Financial Markets | 1.77M | 1.24% | $14.9M | added +109.4% | 2024 Q4 |
| Two Sigma | 1.32M | 0.93% | $11.1M | added +25.7% | 2025 Q3 |
| First Trust Advisors LP | 1.22M | 0.86% | $10.2M | added +67.3% | 2022 Q1 |
| Dimensional Fund Advisors | 1.04M | 0.74% | $8.8M | trimmed -33.5% | 2023 Q1 |
| Northern Trust | 1.04M | 0.73% | $8.8M | added +2.6% | ≤2013 |
| Charles Schwab Investment Management | 1.04M | 0.73% | $8.8M | added +15.6% | ≤2013 |
| Susquehanna International Group | 821.7k | 0.58% | $6.9M | trimmed -40.8% | 2014 Q2 |
| Federated Hermes, INC. | 759.2k | 0.54% | $6.4M | added +12.4% | 2025 Q1 |
| Jane Street | 749.2k | 0.53% | $6.3M | trimmed -28.3% | 2019 Q4 |
| Citadel Advisors | 720.2k | 0.51% | $6.1M | trimmed -30.1% | 2020 Q4 |
| Capital Fund Management S.a. | 694.1k | 0.49% | $5.8M | added +14.2% | 2024 Q1 |
| BNY Mellon | 690.7k | 0.49% | $5.8M | added +0.8% | ≤2013 |
| Edgestream Partners, L.p. | 658.6k | 0.46% | $5.5M | added +247.5% | 2024 Q4 |
| HRT Financial LP | 556.0k | 0.39% | $4.7M | added +199.4% | 2024 Q4 |
| Voloridge Investment Management | 545.4k | 0.38% | $4.6M | trimmed -19.9% | 2025 Q4 |
| Defiance ETFs, LLC | 505.0k | 0.36% | $4.3M | added +1758.3% | 2025 Q4 |
| Penserra Capital Management LLC | 505.0k | 0.36% | $4.3M | added +1758.3% | 2025 Q3 |
| Algert Global LLC | 474.2k | 0.33% | $4.0M | opened | 2026 Q1 |
| Quantbot Technologies LP | 457.3k | 0.32% | $3.9M | added +51% | 2025 Q1 |
| SG Americas Securities, LLC | 407.6k | 0.29% | $3.4M | added +6% | 2020 Q2 |
| Nuveen | 340.9k | 0.24% | $2.9M | added +0.5% | 2019 Q2 |
| Citigroup INC | 331.2k | 0.23% | $2.8M | added +72.1% | ≤2013 |
| Barclays PLC | 330.3k | 0.23% | $2.8M | trimmed -38.9% | 2022 Q1 |
| Zweig-DiMenna Associates LLC | 318.9k | 0.23% | $2.7M | opened | 2026 Q1 |
| Invesco | 296.4k | 0.21% | $2.5M | trimmed -34.5% | ≤2013 |
| Jacobs Levy Equity Management, INC | 281.8k | 0.20% | $2.4M | added +18.8% | 2025 Q4 |
| Swiss National Bank | 258.0k | 0.18% | $2.2M | added +2.5% | 2021 Q2 |
| D. E. Shaw | 253.8k | 0.18% | $2.1M | trimmed -20.1% | 2024 Q4 |
| Point72 | 223.9k | 0.16% | $1.9M | trimmed -61.8% | 2025 Q2 |
| DOW Chemical CO /DE/ (focused) | 222.1k | 0.16% | $1.9M | unchanged | 2021 Q1 |
| Tiller Private Wealth, INC. | 222.1k | 0.16% | $1.9M | unchanged | 2025 Q2 |
| Cerity Partners LLC | 206.3k | 0.14% | $1.7M | trimmed -56.7% | 2023 Q4 |
| Philadelphia Trust CO | 197.5k | 0.14% | $1.7M | trimmed -43.2% | 2025 Q3 |
| Tidal Investments LLC | 196.5k | 0.14% | $1.7M | trimmed -12.3% | 2023 Q2 |
| Numerai GP LLC | 192.3k | 0.14% | $1.6M | added +336.7% | 2025 Q3 |
| Wells Fargo & COMPANY/MN | 184.3k | 0.13% | $1.6M | trimmed -26.7% | ≤2013 |
| Perigon Wealth Management, LLC | 183.8k | 0.13% | $1.5M | unchanged | 2021 Q1 |
| Atom Investors LP | 181.2k | 0.13% | $1.5M | trimmed -51.6% | 2025 Q2 |
| Royal Bank OF Canada | 177.5k | 0.13% | $1.5M | added +418.7% | ≤2013 |
Largest 50 of 305 shown; the full ranked, searchable register is at boothcheck.com/holders/AI. 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.