Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
355 institutional managers reported holding ASB for the quarter ended Mar 31, 2026. Together they hold about 87% of shares outstanding; the top 10 hold 51%. 64 opened new positions; 42 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| BlackRock | 22.42M | 13.46% | $580.0M | added +5.7% | ≤2013 |
| Vanguard Group | 19.36M | 11.62% | $500.9M | added +4.3% | ≤2013 |
| Dimensional Fund Advisors | 9.81M | 5.89% | $253.8M | added +1.8% | ≤2013 |
| State Street | 8.96M | 5.38% | $231.8M | added +2.9% | ≤2013 |
| First Trust Advisors LP | 5.97M | 3.58% | $154.5M | added +127.6% | ≤2013 |
| Geode Capital | 4.36M | 2.62% | $112.9M | added +6.8% | ≤2013 |
| LSV Asset Management | 3.82M | 2.29% | $98.8M | added +4.3% | ≤2013 |
| Nomura Asset Management International INC. | 3.34M | 2.00% | $86.3M | trimmed -11.4% | 2025 Q4 |
| American Century Companies INC | 3.27M | 1.96% | $84.5M | added +14.8% | 2019 Q4 |
| Citadel Advisors | 3.06M | 1.84% | $79.2M | added +1.1% | 2014 Q1 |
| Associated Banc-CORP | 2.59M | 1.55% | $66.9M | trimmed -1.7% | ≤2013 |
| Goldman Sachs | 2.37M | 1.42% | $61.2M | trimmed -16.7% | ≤2013 |
| Charles Schwab Investment Management | 2.26M | 1.36% | $58.6M | added +4.9% | ≤2013 |
| FMR (Fidelity) | 2.07M | 1.24% | $53.5M | trimmed -81.1% | ≤2013 |
| Northern Trust | 2.02M | 1.21% | $52.3M | added +3.5% | ≤2013 |
| Pzena Investment Management | 1.92M | 1.16% | $49.7M | added +10.2% | 2014 Q1 |
| Verition Fund Management | 1.83M | 1.10% | $47.4M | trimmed -36.1% | 2019 Q2 |
| BNY Mellon | 1.68M | 1.01% | $43.4M | unchanged | ≤2013 |
| Wellington Management | 1.63M | 0.98% | $42.2M | added +147.9% | ≤2013 |
| Balyasny Asset Management | 1.48M | 0.89% | $38.3M | added +4929.5% | 2024 Q3 |
| UBS | 1.47M | 0.88% | $37.9M | added +69.9% | ≤2013 |
| Morgan Stanley | 1.42M | 0.85% | $36.7M | trimmed -10.3% | ≤2013 |
| Allspring Global Investments Holdings, LLC | 1.41M | 0.85% | $36.5M | trimmed -4% | 2021 Q4 |
| AQR Capital | 1.39M | 0.84% | $36.0M | added +39.2% | ≤2013 |
| Invesco | 1.32M | 0.79% | $34.2M | added +22.5% | ≤2013 |
| Susquehanna International Group | 1.31M | 0.78% | $33.8M | added +1886.9% | 2018 Q3 |
| Hotchkis & Wiley Capital Management LLC | 1.25M | 0.75% | $32.2M | added +20% | ≤2013 |
| Point72 | 978.8k | 0.59% | $25.3M | added +78% | 2023 Q4 |
| Qube Research & Technologies LTD | 970.8k | 0.58% | $25.1M | opened | 2023 Q1 |
| Bank OF America CORP /DE/ | 969.4k | 0.58% | $25.1M | trimmed -6.9% | ≤2013 |
| Nuveen | 938.4k | 0.56% | $24.3M | unchanged | 2019 Q2 |
| Heartland Advisors INC | 875.9k | 0.53% | $22.7M | unchanged | 2016 Q3 |
| Interval Partners, LP | 874.1k | 0.53% | $22.6M | added +10.4% | 2022 Q1 |
| Voloridge Investment Management | 860.6k | 0.52% | $22.3M | added +6.5% | 2023 Q3 |
| Rhino Investment Partners, INC (focused) | 824.1k | 0.49% | $21.3M | added +35.8% | 2024 Q1 |
| SG Americas Securities, LLC | 767.7k | 0.46% | $19.9M | added +69.6% | ≤2013 |
| Tudor Investment | 765.3k | 0.46% | $19.8M | added +628.7% | 2024 Q1 |
| Leeward Investments, LLC - MA | 724.6k | 0.43% | $18.7M | trimmed -2.7% | 2025 Q1 |
| Victory Capital Management INC | 711.0k | 0.43% | $18.4M | added +58.8% | 2013 Q3 |
| Two Sigma | 551.3k | 0.33% | $14.3M | added +18% | 2025 Q2 |
| Rhumbline Advisers | 506.5k | 0.30% | $13.1M | added +0.8% | ≤2013 |
| Millennium Management | 502.6k | 0.30% | $13.0M | trimmed -47% | 2014 Q3 |
| Hancock Whitney CORP | 502.0k | 0.30% | $13.0M | added +7.3% | 2022 Q4 |
| Algert Global LLC | 483.4k | 0.29% | $12.5M | added +119% | 2024 Q2 |
| Fisher Investments | 465.2k | 0.28% | $12.0M | added +29.9% | 2020 Q2 |
| T. Rowe Price | 441.2k | 0.27% | $11.4M | added +196.2% | ≤2013 |
| SEI Investments CO | 433.4k | 0.26% | $11.2M | added +134.1% | 2019 Q1 |
| Bridgewater Associates | 415.7k | 0.25% | $10.8M | trimmed -50.8% | 2025 Q2 |
| Longaeva Partners L.p. | 405.3k | 0.24% | $10.5M | opened | 2026 Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 401.4k | 0.24% | $10.4M | trimmed -1.5% | 2024 Q4 |
Largest 50 of 355 shown; the full ranked, searchable register is at boothcheck.com/holders/ASB. 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.