Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
127 institutional managers reported holding ARDT for the quarter ended Mar 31, 2026. Together they hold about 75% of shares outstanding; the top 10 hold 69%. 25 opened new positions; 23 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Chai Trust CO LLC (focused) | 77.25M | 54.48% | $661.2M | unchanged | 2024 Q3 |
| Ventas, INC. (focused) | 9.34M | 6.59% | $80.0M | unchanged | 2025 Q3 |
| Goldentree Asset Management LP (focused) | 2.30M | 1.62% | $19.7M | unchanged | 2024 Q3 |
| Ameriprise Financial INC | 1.78M | 1.25% | $15.2M | added +58.4% | 2025 Q1 |
| BlackRock | 1.76M | 1.24% | $15.1M | added +3.1% | 2024 Q3 |
| Vanguard Group | 1.63M | 1.15% | $13.9M | added +8.3% | 2024 Q3 |
| CastleKnight Management LP | 1.08M | 0.76% | $9.2M | trimmed -7.8% | 2024 Q3 |
| AQR Capital | 942.4k | 0.67% | $8.1M | added +64.2% | 2025 Q2 |
| Bridgeway Capital Management, LLC | 930.7k | 0.66% | $8.0M | trimmed -1.7% | 2025 Q3 |
| ExodusPoint | 657.9k | 0.46% | $5.6M | opened | 2026 Q1 |
| State Street | 586.1k | 0.41% | $5.0M | added +9.1% | 2024 Q3 |
| Geode Capital | 561.4k | 0.40% | $4.8M | added +3.1% | 2024 Q3 |
| Empowered Funds, LLC | 535.8k | 0.38% | $4.6M | trimmed -2.9% | 2025 Q3 |
| First Trust Advisors LP | 478.8k | 0.34% | $4.1M | added +70.9% | 2025 Q2 |
| UBS | 476.5k | 0.34% | $4.1M | added +234.4% | 2024 Q3 |
| Hotchkis & Wiley Capital Management LLC | 442.6k | 0.31% | $3.8M | trimmed -7% | 2025 Q3 |
| Bank OF America CORP /DE/ | 361.0k | 0.26% | $3.1M | added +11.6% | 2024 Q3 |
| Morgan Stanley | 292.0k | 0.21% | $2.5M | trimmed -59.9% | 2024 Q3 |
| Denali Advisors LLC | 249.4k | 0.18% | $2.1M | unchanged | 2025 Q3 |
| Two Sigma | 246.3k | 0.17% | $2.1M | added +92.7% | 2024 Q3 |
| Northern Trust | 245.5k | 0.17% | $2.1M | added +2% | 2024 Q3 |
| BNY Mellon | 241.1k | 0.17% | $2.1M | added +4.2% | 2024 Q3 |
| Goldman Sachs | 219.0k | 0.15% | $1.9M | trimmed -12.5% | 2024 Q3 |
| Charles Schwab Investment Management | 195.6k | 0.14% | $1.7M | trimmed -3.4% | 2024 Q3 |
| Jane Street | 194.0k | 0.14% | $1.7M | added +199.4% | 2024 Q3 |
| LSV Asset Management | 186.4k | 0.13% | $1.6M | added +70.9% | 2025 Q4 |
| Citadel Advisors | 168.9k | 0.12% | $1.4M | trimmed -29.5% | 2024 Q3 |
| Moore Capital | 166.4k | 0.12% | $1.4M | trimmed -12.9% | 2025 Q4 |
| State OF Wisconsin Investment Board | 158.7k | 0.11% | $1.4M | added +15.7% | 2024 Q4 |
| Prescott Group Capital Management, L.l.c. | 121.9k | 0.09% | $1.0M | unchanged | 2025 Q4 |
| Arrowstreet Capital | 121.4k | 0.09% | $1.0M | added +159.9% | 2025 Q4 |
| Wedge Capital Management L L P/NC | 104.8k | 0.07% | $897k | trimmed -7% | 2025 Q2 |
| Acadian Asset Management | 104.0k | 0.07% | $890k | added +240.6% | 2024 Q4 |
| D. E. Shaw | 83.7k | 0.06% | $717k | added +11.6% | 2025 Q4 |
| Invesco | 73.8k | 0.05% | $632k | added +3.5% | 2025 Q1 |
| Trexquant Investment LP | 72.2k | 0.05% | $618k | opened | 2026 Q1 |
| NEW York State Common Retirement Fund | 71.9k | 0.05% | $615k | unchanged | 2024 Q4 |
| Lido Advisors, LLC | 70.0k | 0.05% | $599k | trimmed -23.1% | 2025 Q1 |
| Nuveen | 68.3k | 0.05% | $585k | added +122.6% | 2024 Q3 |
| Millennium Management | 66.3k | 0.05% | $568k | trimmed -89.4% | 2024 Q3 |
| Strs Ohio | 59.6k | 0.04% | $510k | trimmed -4.5% | 2024 Q3 |
| Citigroup INC | 58.9k | 0.04% | $505k | added +3.6% | 2024 Q3 |
| Swiss National Bank | 55.5k | 0.04% | $475k | unchanged | 2025 Q3 |
| American Century Companies INC | 55.2k | 0.04% | $472k | added +28.7% | 2025 Q2 |
| Voleon Capital Management LP | 49.1k | 0.04% | $420k | trimmed -21.8% | 2025 Q3 |
| Vestcor INC | 48.8k | 0.03% | $418k | added +69.3% | 2025 Q4 |
| Y-Intercept (Hong Kong) LTD | 46.9k | 0.03% | $401k | added +165.7% | 2025 Q1 |
| Voya Investment Management LLC | 46.5k | 0.03% | $398k | added +10.1% | 2024 Q3 |
| Balyasny Asset Management | 43.9k | 0.03% | $376k | added +4.9% | 2025 Q4 |
| Algert Global LLC | 43.4k | 0.03% | $372k | added +17.9% | 2025 Q3 |
Largest 50 of 127 shown; the full ranked, searchable register is at boothcheck.com/holders/ARDT. 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.