Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
404 institutional managers reported holding ST for the quarter ended Mar 31, 2026. Reported positions total over 95% of shares outstanding; the top 10 hold 56%. 58 opened new positions; 40 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 15.48M | 10.56% | $545.5M | added +3.2% | ≤2013 |
| BlackRock | 13.45M | 9.18% | $474.1M | added +2.4% | ≤2013 |
| Janus Henderson | 10.40M | 7.10% | $366.6M | added +1.1% | ≤2013 |
| T. Rowe Price | 8.64M | 5.89% | $304.5M | added +11% | ≤2013 |
| Artisan Partners | 7.43M | 5.07% | $261.8M | trimmed -44.1% | 2022 Q1 |
| Dimensional Fund Advisors | 7.39M | 5.04% | $260.5M | added +1.7% | ≤2013 |
| Fuller & Thaler Asset Management, INC. | 6.86M | 4.68% | $241.8M | added +14% | 2024 Q3 |
| State Street | 4.75M | 3.24% | $167.6M | added +1.7% | ≤2013 |
| Barrow Hanley Mewhinney & Strauss LLC | 4.15M | 2.83% | $146.2M | trimmed -3.8% | 2025 Q2 |
| Woodline Partners LP | 3.89M | 2.65% | $137.1M | trimmed -22.8% | 2022 Q3 |
| Pzena Investment Management | 3.48M | 2.38% | $122.7M | trimmed -0.8% | 2025 Q3 |
| American Century Companies INC | 3.34M | 2.28% | $117.7M | added +10.6% | 2019 Q4 |
| Geode Capital | 2.79M | 1.90% | $98.2M | added +3.4% | ≤2013 |
| Boston Partners | 2.58M | 1.76% | $91.0M | trimmed -5.1% | 2021 Q1 |
| Quantinno Capital Management LP | 2.40M | 1.64% | $84.6M | added +45.5% | 2022 Q4 |
| UBS | 2.30M | 1.57% | $81.1M | added +45.6% | ≤2013 |
| Allianz Asset Management GmbH | 1.89M | 1.29% | $66.6M | added +30% | ≤2013 |
| Merewether Investment Management, LP | 1.80M | 1.23% | $63.3M | added +98.6% | 2025 Q4 |
| Bank OF America CORP /DE/ | 1.77M | 1.21% | $62.2M | added +5.7% | ≤2013 |
| Victory Capital Management INC | 1.69M | 1.16% | $59.7M | trimmed -1.4% | 2015 Q2 |
| Charles Schwab Investment Management | 1.64M | 1.12% | $57.9M | added +2.4% | ≤2013 |
| Northern Trust | 1.63M | 1.11% | $57.4M | trimmed -3.4% | ≤2013 |
| Mackenzie Financial CORP | 1.52M | 1.04% | $53.6M | added +23.2% | 2021 Q3 |
| FIL LTD | 1.51M | 1.03% | $53.3M | added +71.5% | 2022 Q3 |
| Earnest Partners LLC | 1.47M | 1.00% | $51.9M | trimmed -1.9% | 2017 Q4 |
| Analog Century Management LP (focused) | 1.47M | 1.00% | $51.8M | added +14.3% | 2023 Q4 |
| SEI Investments CO | 1.39M | 0.95% | $49.0M | trimmed -14.8% | 2014 Q4 |
| BNY Mellon | 1.36M | 0.93% | $47.8M | added +29.8% | ≤2013 |
| Brown Advisory INC | 1.30M | 0.89% | $46.0M | added +13.2% | 2024 Q2 |
| ArrowMark Colorado Holdings LLC | 1.15M | 0.78% | $40.5M | trimmed -5.6% | 2013 Q3 |
| Morgan Stanley | 1.07M | 0.73% | $37.8M | added +4% | ≤2013 |
| AQR Capital | 1.05M | 0.72% | $37.1M | added +23.1% | 2019 Q2 |
| Gotham Asset Management | 977.7k | 0.67% | $34.5M | added +15.5% | 2024 Q3 |
| FMR (Fidelity) | 970.5k | 0.66% | $34.2M | trimmed -5.3% | 2016 Q4 |
| CPP Investment Board | 951.1k | 0.65% | $33.5M | added +15240.3% | 2024 Q2 |
| Invenomic Capital Management LP | 950.3k | 0.65% | $33.5M | trimmed -21.9% | 2022 Q2 |
| Wellington Management | 916.0k | 0.63% | $32.3M | added +94.1% | 2025 Q4 |
| Millennium Management | 727.8k | 0.50% | $25.6M | added +7.7% | 2016 Q1 |
| Robeco Institutional Asset Management B.v. | 672.1k | 0.46% | $23.7M | added +58.3% | 2015 Q1 |
| Qube Research & Technologies LTD | 636.2k | 0.43% | $22.4M | added +472% | 2025 Q4 |
| Medina Value Partners, LLC (focused) | 594.2k | 0.41% | $20.9M | added +427.1% | 2025 Q4 |
| Schwerin Boyle Capital Management INC (focused) | 587.6k | 0.40% | $20.7M | trimmed -12.7% | 2024 Q2 |
| Congruence Capital, LLC (focused) | 585.6k | 0.40% | $20.6M | opened | 2026 Q1 |
| Capital Management CORP /VA | 487.2k | 0.33% | $17.2M | trimmed -16.6% | 2023 Q2 |
| Envestnet Asset Management INC | 465.7k | 0.32% | $16.4M | added +13.2% | ≤2013 |
| Point72 | 434.3k | 0.30% | $15.3M | trimmed -63.5% | 2025 Q2 |
| Easterly Investment Partners LLC | 427.6k | 0.29% | $15.1M | added +565.8% | 2024 Q1 |
| Tocqueville Asset Management L.p. | 406.3k | 0.28% | $14.3M | added +1.5% | 2025 Q2 |
| Glenmede Trust CO NA | 390.3k | 0.27% | $13.8M | trimmed -7.9% | 2025 Q1 |
| Hotchkis & Wiley Capital Management LLC | 385.1k | 0.26% | $13.6M | trimmed -5.8% | 2025 Q1 |
Largest 50 of 404 shown; the full ranked, searchable register is at boothcheck.com/holders/ST. 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.