TMO Thermo Fisher Scientific Inc.
Thermo Fisher Scientific Inc. (TMO) Institutional Ownership
What the institutions did with TMO last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 8.5M | 13.0% |
| Bank of New York Mellon Corp | 4.1M | 6.3% |
| Fisher Asset Management, LLC | 3.0M | 4.6% |
| Mitsubishi UFJ Asset Management Co., Ltd. | 2.0M | 3.1% |
| Amundi | 2.0M | 3.1% |
| DIMENSIONAL FUND ADVISORS LP | 1.8M | 2.7% |
| PARNASSUS INVESTMENTS, LLC | 1.5M | 2.2% |
| Temasek Holdings (Private) Ltd | 1.2M | 1.8% |
| DEUTSCHE BANK AG\ | 1.2M | 1.8% |
| BARCLAYS PLC | 1.1M | 1.7% |
| Sumitomo Mitsui Trust Group, Inc. | 1.0M | 1.6% |
| Swedbank AB | 975.8K | 1.5% |
| FLOSSBACH VON STORCH SE | 910.3K | 1.4% |
| Pictet Asset Management Holding SA | 887.6K | 1.4% |
| Aberdeen Group plc | 739.9K | 1.1% |
| Robeco Institutional Asset Management B.V. | 716.9K | 1.1% |
| KING LUTHER CAPITAL MANAGEMENT CORP | 651.2K | 1.0% |
| Veritas Asset Management LLP | 651.1K | 1.0% |
| DekaBank Deutsche Girozentrale | 645.8K | 1.0% |
| CITIGROUP INC | 614.8K | 0.9% |
| PRINCIPAL FINANCIAL GROUP INC | 607.5K | 0.9% |
| BAILLIE GIFFORD & CO | 605.2K | 0.9% |
| Mirova US LLC | 552.8K | 0.8% |
| Ninety One UK Ltd | 528.1K | 0.8% |
| Handelsbanken Fonder AB | 524.2K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FLOSSBACH VON STORCH SE | Reduced | 1.9M | 910.3K | -995.7K |
| Assenagon Asset Management S.A. | Reduced | 683.6K | 214.2K | -469.4K |
| BESSEMER GROUP INC | Increased | 28.4K | 356.5K | +328.1K |
| Swedbank AB | Reduced | 1.3M | 975.8K | -323.0K |
| Aberdeen Group plc | Increased | 461.0K | 739.9K | +278.8K |
| BARCLAYS PLC | Reduced | 1.4M | 1.1M | -259.0K |
| NATIXIS | Reduced | 241.1K | 2.1K | -239.1K |
| Veritas Asset Management LLP | Reduced | 882.9K | 651.1K | -231.8K |
| Amundi | Increased | 1.8M | 2.0M | +210.0K |
| Egerton Capital (UK) LLP | New | 0 | 198.2K | +198.2K |
| Jefferies Financial Group Inc. | Reduced | 193.3K | 800 | -192.5K |
| Mondrian Investment Partners LTD | Reduced | 346.3K | 157.5K | -188.8K |
| Pictet Asset Management Holding SA | Reduced | 1.1M | 887.6K | -186.1K |
| PARNASSUS INVESTMENTS, LLC | Reduced | 1.6M | 1.5M | -176.3K |
| Bank of New York Mellon Corp | Increased | 3.9M | 4.1M | +171.8K |
| Cardano Risk Management B.V. | New | 0 | 169.8K | +169.8K |
| B. Metzler seel. Sohn & Co. AG | Reduced | 454.4K | 285.1K | -169.3K |
| AGF MANAGEMENT LTD | Increased | 68.8K | 236.1K | +167.3K |
| LBP AM SA | Reduced | 167.2K | 2.3K | -164.9K |
| MACKENZIE FINANCIAL CORP | Increased | 332.0K | 492.9K | +160.9K |
| Robeco Institutional Asset Management B.V. | Increased | 577.6K | 716.9K | +139.3K |
| BANK OF MONTREAL /CAN/ | Reduced | 581.6K | 446.6K | -135.1K |
| KBC Group NV | Increased | 197.8K | 329.5K | +131.7K |
| DekaBank Deutsche Girozentrale | Reduced | 772.6K | 645.8K | -126.8K |
| Squarepoint Ops LLC | Reduced | 167.0K | 40.2K | -126.8K |
| Lindsell Train Ltd | Reduced | 514.5K | 391.8K | -122.7K |
| Cryder Capital Partners LLP | Reduced | 419.2K | 307.2K | -112.0K |
| Eurizon Capital SGR S.p.A. | Reduced | 540.0K | 431.2K | -108.7K |
| AEGON ASSET MANAGEMENT UK Plc | New | 0 | 83.9K | +83.9K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 8.4M | 8.5M | +80.4K |
| Fisher Asset Management, LLC | Increased | 2.9M | 3.0M | +74.6K |
| Migdal Insurance & Financial Holdings Ltd. | New | 0 | 72.0K | +72.0K |
| Thrivent Financial for Lutherans | Increased | 35.8K | 105.3K | +69.6K |
| iA Global Asset Management Inc. | Reduced | 186.5K | 120.4K | -66.1K |
| Ninety One UK Ltd | Reduced | 593.7K | 528.1K | -65.6K |
| Calamos Advisors LLC | Increased | 115.2K | 176.9K | +61.7K |
| Perpetual Ltd | Reduced | 209.4K | 148.3K | -61.1K |
| ASR Vermogensbeheer N.V. | Reduced | 93.7K | 34.7K | -59.0K |
| NICHOLAS COMPANY, INC. | Reduced | 159.8K | 102.7K | -57.2K |
| Candriam S.C.A. | Increased | 347.4K | 404.5K | +57.1K |
| PRINCIPAL FINANCIAL GROUP INC | Increased | 553.9K | 607.5K | +53.6K |
| OP Asset Management Ltd | Increased | 42.2K | 95.8K | +53.5K |
| Robeco Schweiz AG | Reduced | 190.9K | 140.7K | -50.2K |
| Fenimore Asset Management Inc | Increased | 6.1K | 53.8K | +47.7K |
| Cambridge Investment Research Advisors, Inc. | Reduced | 91.0K | 44.5K | -46.4K |
| Artemis Investment Management LLP | Increased | 41.3K | 84.8K | +43.5K |
| PFA Pension, Forsikringsaktieselskab | Increased | 151.8K | 194.7K | +42.9K |
| Temasek Holdings (Private) Ltd | Increased | 1.2M | 1.2M | +42.5K |
| BAILLIE GIFFORD & CO | Reduced | 645.6K | 605.2K | -40.5K |
| Formuepleje A/S | Reduced | 125.1K | 86.0K | -39.1K |
| Mirova US LLC | Reduced | 591.3K | 552.8K | -38.5K |
| Sound Shore Management Inc /CT/ | Reduced | 165.3K | 127.4K | -37.9K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.7M | 1.8M | +37.3K |
| LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA | Reduced | 491.5K | 454.3K | -37.1K |
| Sumitomo Mitsui Trust Group, Inc. | Reduced | 1.1M | 1.0M | -37.0K |
| LPL Financial LLC | Increased | 325.6K | 362.6K | +37.0K |
| CITIGROUP INC | Reduced | 651.0K | 614.8K | -36.2K |
| NEW SOUTH CAPITAL MANAGEMENT INC | Reduced | 155.8K | 121.3K | -34.5K |
| Swiss Life Asset Management Ltd | Increased | 60.5K | 94.4K | +33.9K |
| NUANCE INVESTMENTS, LLC | Reduced | 35.7K | 2.5K | -33.1K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.