Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
563 institutional managers reported holding AIT for the quarter ended Mar 31, 2026. Together they hold about 92% of shares outstanding; the top 10 hold 39%. 75 opened new positions; 66 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 4.09M | 10.85% | $1.08B | unchanged | ≤2013 |
| BlackRock | 3.84M | 10.19% | $1.02B | added +2.3% | ≤2013 |
| State Street | 1.21M | 3.20% | $320.1M | added +1.5% | ≤2013 |
| First Trust Advisors LP | 978.8k | 2.60% | $259.6M | added +34.3% | 2017 Q2 |
| AQR Capital | 919.6k | 2.44% | $243.9M | added +113.4% | ≤2013 |
| Geode Capital | 900.6k | 2.39% | $238.8M | added +31.1% | ≤2013 |
| Wellington Management | 754.6k | 2.00% | $200.1M | trimmed -2.8% | ≤2013 |
| Dimensional Fund Advisors | 721.2k | 1.91% | $191.3M | unchanged | ≤2013 |
| UBS | 634.6k | 1.68% | $168.3M | added +142.4% | ≤2013 |
| Alyeska Investment Group | 602.8k | 1.60% | $159.8M | added +16% | 2024 Q1 |
| Fuller & Thaler Asset Management, INC. | 562.7k | 1.49% | $149.2M | trimmed -1.7% | 2015 Q3 |
| FMR (Fidelity) | 506.5k | 1.34% | $134.3M | trimmed -8.5% | 2015 Q4 |
| Capital Research Global Investors | 492.8k | 1.31% | $130.7M | added +52.8% | 2023 Q3 |
| Two Sigma | 490.2k | 1.30% | $130.0M | added +70.9% | 2022 Q2 |
| Charles Schwab Investment Management | 470.4k | 1.25% | $124.7M | added +4.1% | ≤2013 |
| Boston Trust Walden CORP | 439.4k | 1.17% | $116.5M | trimmed -9.2% | 2015 Q1 |
| T. Rowe Price | 379.8k | 1.01% | $100.7M | added +47.2% | ≤2013 |
| Invesco | 374.9k | 0.99% | $99.4M | trimmed -31.3% | ≤2013 |
| Capital Group (American Funds) | 373.8k | 0.99% | $99.1M | added +7.4% | 2023 Q3 |
| Morgan Stanley | 356.8k | 0.95% | $94.6M | added +4% | ≤2013 |
| Capital International Investors | 316.9k | 0.84% | $84.0M | trimmed -67.1% | 2025 Q3 |
| Federated Hermes, INC. | 301.8k | 0.80% | $80.0M | added +40.5% | 2015 Q4 |
| Northern Trust | 301.3k | 0.80% | $79.9M | added +1.4% | ≤2013 |
| MFS Investment Management | 299.6k | 0.80% | $79.4M | opened | 2026 Q1 |
| Durable Capital Partners LP (focused) | 296.6k | 0.79% | $78.7M | opened | 2026 Q1 |
| BNY Mellon | 290.3k | 0.77% | $77.0M | trimmed -2.1% | ≤2013 |
| Westfield Capital Management CO LP | 289.2k | 0.77% | $76.7M | added +1.4% | 2024 Q3 |
| Goldman Sachs | 285.6k | 0.76% | $75.7M | added +95.7% | ≤2013 |
| Qube Research & Technologies LTD | 276.7k | 0.73% | $73.4M | trimmed -36.3% | 2023 Q4 |
| Franklin Resources | 273.1k | 0.72% | $72.4M | unchanged | 2023 Q1 |
| Gw&k Investment Management, LLC | 271.5k | 0.72% | $72.0M | added +25.4% | 2023 Q3 |
| AllianceBernstein | 266.0k | 0.71% | $70.5M | trimmed -8.3% | ≤2013 |
| Allspring Global Investments Holdings, LLC | 259.8k | 0.69% | $68.9M | added +12.3% | 2021 Q4 |
| Bank OF America CORP /DE/ | 250.3k | 0.66% | $66.4M | trimmed -27.5% | ≤2013 |
| Fiera Capital CORP | 247.6k | 0.66% | $65.7M | added +3.3% | 2021 Q3 |
| Brown Advisory INC | 235.0k | 0.62% | $62.3M | trimmed -17.2% | 2020 Q4 |
| Thrivent Financial for Lutherans | 235.0k | 0.62% | $62.3M | added +19.3% | ≤2013 |
| Millennium Management | 221.4k | 0.59% | $58.7M | trimmed -46.6% | 2016 Q2 |
| Nomura Asset Management International INC. | 212.2k | 0.56% | $56.3M | added +0.6% | 2025 Q3 |
| Fiduciary Management INC /WI/ | 205.9k | 0.55% | $54.6M | trimmed -4.7% | 2020 Q1 |
| American Century Companies INC | 202.1k | 0.54% | $53.6M | trimmed -4.2% | 2016 Q4 |
| Palisade Capital Management, LP | 185.1k | 0.49% | $49.1M | trimmed -7.4% | ≤2013 |
| NEW York State Common Retirement Fund | 180.0k | 0.48% | $47.7M | trimmed -13.2% | ≤2013 |
| Adage Capital Partners GP, L.l.c. | 177.0k | 0.47% | $46.9M | trimmed -33.1% | 2025 Q3 |
| Artisan Partners | 176.2k | 0.47% | $46.7M | trimmed -37.4% | 2024 Q3 |
| Amundi | 174.9k | 0.46% | $46.4M | added +157.8% | 2022 Q4 |
| Ameriprise Financial INC | 164.0k | 0.43% | $43.5M | trimmed -37.8% | ≤2013 |
| Pacer Advisors, INC. | 162.5k | 0.43% | $43.1M | added +2947.3% | 2023 Q4 |
| Robeco Institutional Asset Management B.v. | 158.4k | 0.42% | $42.0M | added +3.3% | 2020 Q2 |
| Nordea Investment Management AB | 156.0k | 0.41% | $41.4M | trimmed -9.7% | 2024 Q1 |
Largest 50 of 563 shown; the full ranked, searchable register is at boothcheck.com/holders/AIT. 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.