Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
2,524 institutional managers reported holding TMO for the quarter ended Mar 31, 2026. Together they hold about 88% of shares outstanding; the top 10 hold 37%. 150 opened new positions; 287 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 34.27M | 9.19% | $16.85B | unchanged | ≤2013 |
| BlackRock | 30.43M | 8.16% | $14.96B | trimmed -0.8% | ≤2013 |
| State Street | 16.73M | 4.49% | $8.23B | added +0.7% | ≤2013 |
| Morgan Stanley | 10.86M | 2.91% | $5.34B | trimmed -8.7% | ≤2013 |
| FMR (Fidelity) | 10.78M | 2.89% | $5.30B | added +10% | ≤2013 |
| Geode Capital | 8.41M | 2.25% | $4.13B | added +2.6% | ≤2013 |
| Franklin Resources | 6.81M | 1.83% | $3.35B | added +7.4% | ≤2013 |
| Capital Group (American Funds) | 6.65M | 1.78% | $3.27B | trimmed -39.6% | 2013 Q3 |
| T. Rowe Price | 6.32M | 1.69% | $3.11B | trimmed -18% | ≤2013 |
| Bank OF America CORP /DE/ | 5.53M | 1.48% | $2.72B | trimmed -6.9% | ≤2013 |
| UBS | 4.90M | 1.31% | $2.41B | added +3.2% | ≤2013 |
| Capital Research Global Investors | 4.41M | 1.18% | $2.17B | added +51.5% | ≤2013 |
| Royal Bank OF Canada | 3.91M | 1.05% | $1.92B | trimmed -3% | ≤2013 |
| Capital International Investors | 3.89M | 1.04% | $1.91B | added +322.6% | 2025 Q2 |
| BNY Mellon | 3.77M | 1.01% | $1.85B | added +1.1% | ≤2013 |
| Northern Trust | 3.42M | 0.92% | $1.68B | trimmed -1% | ≤2013 |
| Goldman Sachs | 3.16M | 0.85% | $1.55B | added +3% | ≤2013 |
| MFS Investment Management | 3.01M | 0.81% | $1.48B | trimmed -2.4% | ≤2013 |
| Charles Schwab Investment Management | 2.93M | 0.79% | $1.44B | added +3.2% | ≤2013 |
| DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 2.91M | 0.78% | $1.43B | trimmed -17.5% | 2016 Q4 |
| Fisher Investments | 2.85M | 0.76% | $1.40B | added +2.1% | 2015 Q4 |
| Grantham, Mayo, Van Otterloo & CO. LLC | 2.50M | 0.67% | $1.23B | added +3.7% | 2024 Q2 |
| Legal & General Group PLC | 2.37M | 0.64% | $1.17B | trimmed -2% | ≤2013 |
| Invesco | 2.24M | 0.60% | $1.10B | added +3.3% | ≤2013 |
| AllianceBernstein | 2.19M | 0.59% | $1.08B | trimmed -10.6% | ≤2013 |
| Pictet Asset Management Holding SA | 2.06M | 0.55% | $1.01B | trimmed -16.3% | ≤2013 |
| Unisphere Establishment (focused) | 2.06M | 0.55% | $1.01B | added +5.1% | 2023 Q4 |
| Mitsubishi UFJ Asset Management CO., LTD. | 2.05M | 0.55% | $1.01B | trimmed -10.9% | ≤2013 |
| Amundi | 2.02M | 0.54% | $991.4M | added +22.4% | ≤2013 |
| PRIMECAP Management | 1.98M | 0.53% | $974.8M | trimmed -3.6% | 2013 Q4 |
| 1832 Asset Management L.p. | 1.97M | 0.53% | $968.4M | added +58.3% | ≤2013 |
| Flossbach VON Storch SE | 1.95M | 0.52% | $960.8M | trimmed -10.3% | ≤2013 |
| EdgePoint Investment Group INC. (focused) | 1.92M | 0.51% | $943.5M | added +38.5% | 2025 Q1 |
| Barclays PLC | 1.84M | 0.49% | $906.7M | added +10.4% | ≤2013 |
| Schroder Investment Management Group | 1.73M | 0.46% | $849.8M | trimmed -0.7% | ≤2013 |
| Dimensional Fund Advisors | 1.69M | 0.45% | $830.8M | added +2.2% | ≤2013 |
| Ameriprise Financial INC | 1.67M | 0.45% | $821.3M | trimmed -0.9% | ≤2013 |
| Viking Global | 1.67M | 0.45% | $820.1M | added +110.3% | 2025 Q4 |
| Nuveen | 1.65M | 0.44% | $809.8M | trimmed -23.3% | ≤2013 |
| Clearbridge Investments, LLC | 1.61M | 0.43% | $791.9M | trimmed -13.5% | ≤2013 |
| Parnassus Investments | 1.50M | 0.40% | $739.8M | trimmed -5% | 2022 Q1 |
| Swedbank Robur | 1.48M | 0.40% | $727.8M | trimmed -11.6% | 2021 Q1 |
| Wellington Management | 1.48M | 0.40% | $726.8M | trimmed -57.4% | ≤2013 |
| Wells Fargo & COMPANY/MN | 1.44M | 0.39% | $709.7M | added +3.3% | ≤2013 |
| Manufacturers Life Insurance Company, THE | 1.42M | 0.38% | $700.0M | trimmed -6.5% | ≤2013 |
| BNP Paribas Financial Markets | 1.38M | 0.37% | $677.1M | added +0.7% | ≤2013 |
| Loomis Sayles & CO L P | 1.36M | 0.37% | $670.5M | trimmed -1.1% | 2018 Q3 |
| Deutsche Bank AG\ | 1.26M | 0.34% | $619.7M | added +1% | ≤2013 |
| Lazard Asset Management LLC | 1.22M | 0.33% | $600.9M | trimmed -1% | ≤2013 |
| Temasek Holdings | 1.20M | 0.32% | $588.0M | added +34.1% | 2014 Q1 |
Largest 50 of 2,524 shown; the full ranked, searchable register is at boothcheck.com/holders/TMO. 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.