Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
775 institutional managers reported holding CMS for the quarter ended Mar 31, 2026. Together they hold about 92% of shares outstanding; the top 10 hold 48%. 94 opened new positions; 103 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 41.99M | 13.67% | $3.26B | added +3.1% | ≤2013 |
| BlackRock | 33.56M | 10.93% | $2.60B | added +2.9% | ≤2013 |
| State Street | 18.10M | 5.89% | $1.40B | added +1.8% | ≤2013 |
| Geode Capital | 8.53M | 2.78% | $661.7M | added +2.5% | ≤2013 |
| DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 8.14M | 2.65% | $631.2M | added +17% | 2016 Q4 |
| Deutsche Bank AG\ | 7.75M | 2.52% | $600.9M | added +6.8% | ≤2013 |
| Invesco | 7.65M | 2.49% | $593.2M | added +2.2% | ≤2013 |
| MFS Investment Management | 7.63M | 2.48% | $592.0M | trimmed -7.8% | ≤2013 |
| Victory Capital Management INC | 6.84M | 2.23% | $530.6M | trimmed -7.4% | 2014 Q4 |
| Wellington Management | 6.66M | 2.17% | $516.4M | added +13011.5% | 2023 Q4 |
| Wells Fargo & COMPANY/MN | 5.42M | 1.77% | $420.7M | trimmed -3.6% | ≤2013 |
| UBS | 4.99M | 1.63% | $387.5M | added +16.1% | ≤2013 |
| Ameriprise Financial INC | 4.93M | 1.61% | $382.5M | added +0.7% | ≤2013 |
| Goldman Sachs | 4.78M | 1.56% | $370.7M | added +16.8% | ≤2013 |
| Morgan Stanley | 4.71M | 1.53% | $365.7M | added +2.2% | ≤2013 |
| GQG Partners | 4.41M | 1.44% | $342.3M | trimmed -2.4% | 2024 Q2 |
| Pictet Asset Management Holding SA | 4.17M | 1.36% | $323.3M | added +16.7% | ≤2013 |
| Bank OF America CORP /DE/ | 3.67M | 1.20% | $284.6M | added +7.8% | ≤2013 |
| Lord, Abbett & CO. LLC | 3.31M | 1.08% | $256.7M | trimmed -0.8% | ≤2013 |
| FIL LTD | 3.04M | 0.99% | $235.6M | added +0.8% | 2013 Q3 |
| Barclays PLC | 3.00M | 0.97% | $232.4M | added +368.8% | ≤2013 |
| Northern Trust | 2.73M | 0.89% | $211.4M | trimmed -3.2% | ≤2013 |
| T. Rowe Price | 2.60M | 0.84% | $201.4M | trimmed -27.6% | ≤2013 |
| Legal & General Group PLC | 2.58M | 0.84% | $200.5M | trimmed -2.6% | ≤2013 |
| BNY Mellon | 2.53M | 0.82% | $196.7M | trimmed -4.9% | ≤2013 |
| Reaves W H & CO INC | 2.11M | 0.69% | $164.0M | added +1.3% | 2014 Q1 |
| Charles Schwab Investment Management | 2.06M | 0.67% | $159.5M | added +3.4% | ≤2013 |
| Magellan Asset Management | 2.02M | 0.66% | $156.7M | added +698.7% | ≤2013 |
| Parnassus Investments | 1.95M | 0.64% | $151.5M | added +32.6% | 2025 Q4 |
| Franklin Resources | 1.76M | 0.57% | $136.5M | trimmed -6.2% | ≤2013 |
| Jennison Associates LLC | 1.59M | 0.52% | $123.2M | trimmed -2% | ≤2013 |
| Dimensional Fund Advisors | 1.58M | 0.52% | $122.7M | added +3.3% | ≤2013 |
| Amundi | 1.58M | 0.51% | $122.4M | trimmed -4% | 2017 Q4 |
| Nomura Asset Management International INC. | 1.57M | 0.51% | $122.1M | trimmed -31.8% | 2023 Q1 |
| Duff & Phelps Investment Management CO | 1.45M | 0.47% | $112.8M | unchanged | ≤2013 |
| DekaBank Deutsche Girozentrale | 1.33M | 0.43% | $103.5M | unchanged | ≤2013 |
| Cbre Investment Management Listed Real Assets LLC | 1.33M | 0.43% | $103.4M | trimmed -10% | 2018 Q1 |
| iA Global Asset Management INC. | 1.32M | 0.43% | $102.7M | unchanged | 2023 Q2 |
| FMR (Fidelity) | 1.15M | 0.38% | $89.5M | added +18.2% | ≤2013 |
| Soroban Capital Partners LP (focused) | 1.06M | 0.34% | $82.1M | unchanged | 2023 Q4 |
| Bahl & Gaynor INC | 1.04M | 0.34% | $81.1M | added +15.5% | 2021 Q1 |
| Soros Fund Management | 1.03M | 0.34% | $80.3M | trimmed -6.5% | 2025 Q3 |
| Qube Research & Technologies LTD | 1.03M | 0.34% | $79.9M | trimmed -31.5% | 2023 Q3 |
| Vaughan Nelson Investment Management, L.p. | 1.02M | 0.33% | $79.4M | added +28.6% | 2025 Q1 |
| Royal Bank OF Canada | 1.01M | 0.33% | $78.6M | trimmed -9.3% | ≤2013 |
| Nuveen | 990.2k | 0.32% | $76.8M | trimmed -9.4% | ≤2013 |
| First Trust Advisors LP | 947.2k | 0.31% | $73.5M | trimmed -12.4% | ≤2013 |
| Aviva PLC | 936.0k | 0.30% | $72.6M | added +8.5% | ≤2013 |
| Aberdeen Group plc | 914.4k | 0.30% | $70.9M | added +4.2% | 2017 Q3 |
| UniSuper Management Pty LTD | 909.1k | 0.30% | $70.5M | added +0.9% | 2023 Q2 |
Largest 50 of 775 shown; the full ranked, searchable register is at boothcheck.com/holders/CMS. 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.