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 June 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 |
|---|---|---|
| BlackRock, Inc. | 30.9M | 9.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 24.3M | 7.2% |
| STATE STREET CORP | 16.8M | 5.0% |
| FMR LLC | 14.1M | 4.2% |
| MORGAN STANLEY | 10.8M | 3.2% |
| JPMORGAN CHASE & CO | 8.5M | 2.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 8.4M | 2.5% |
| FRANKLIN RESOURCES INC | 7.3M | 2.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.2M | 1.9% |
| Capital World Investors | 6.2M | 1.8% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 5.1M | 1.5% |
| NORGES BANK | 5.1M | 1.5% |
| Capital Research Global Investors | 4.1M | 1.2% |
| Bank of New York Mellon Corp | 3.9M | 1.2% |
| BANK OF AMERICA CORP /DE/ | 3.9M | 1.2% |
| ROYAL BANK OF CANADA | 3.4M | 1.0% |
| NORTHERN TRUST CORP | 3.3M | 1.0% |
| Capital International Investors | 3.2M | 0.9% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.1M | 0.9% |
| Dodge & Cox | 3.1M | 0.9% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 3.0M | 0.9% |
| GOLDMAN SACHS GROUP INC | 3.0M | 0.9% |
| Fisher Asset Management, LLC | 2.9M | 0.9% |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 2.8M | 0.8% |
| Grantham, Mayo, Van Otterloo & Co. LLC | 2.7M | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FMR LLC | Increased | 10.8M | 14.1M | +3.3M |
| Dodge & Cox | Increased | 25.7K | 3.1M | +3.0M |
| JPMORGAN CHASE & CO | Increased | 6.8M | 8.5M | +1.7M |
| BANK OF AMERICA CORP /DE/ | Reduced | 5.5M | 3.9M | -1.6M |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 6.3M | 5.1M | -1.2M |
| Pictet Asset Management Holding SA | Reduced | 2.1M | 1.1M | -987.7K |
| Rathbones Group PLC | Reduced | 1.9M | 1.0M | -902.4K |
| SG Americas Securities, LLC | Increased | 143.9K | 937.3K | +793.3K |
| GENERATION INVESTMENT MANAGEMENT LLP | Sold Out | 773.6K | 0 | -773.6K |
| Cantillon Capital Management LLC | Sold Out | 769.7K | 0 | -769.7K |
| Capital International Investors | Reduced | 3.9M | 3.2M | -706.6K |
| C WorldWide Group Holding A/S | Reduced | 591.5K | 56.5K | -535.1K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 1.5M | 979.2K | -499.1K |
| Assenagon Asset Management S.A. | Increased | 186.4K | 683.6K | +497.2K |
| BlackRock, Inc. | Increased | 30.4M | 30.9M | +492.4K |
| BARCLAYS PLC | Reduced | 1.8M | 1.4M | -490.0K |
| ROYAL BANK OF CANADA | Reduced | 3.9M | 3.4M | -483.1K |
| MARSHALL WACE, LLP | Reduced | 477.3K | 4.3K | -472.9K |
| FRANKLIN RESOURCES INC | Increased | 6.8M | 7.3M | +458.5K |
| Capital World Investors | Reduced | 6.6M | 6.2M | -450.9K |
| Vontobel Holding Ltd. | Reduced | 601.2K | 185.9K | -415.3K |
| GLENVIEW CAPITAL MANAGEMENT, LLC | Increased | 250.5K | 627.2K | +376.7K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 634.4K | 1.0M | +373.0K |
| BESSEMER GROUP INC | Reduced | 370.3K | 28.4K | -341.8K |
| ALLIANCEBERNSTEIN L.P. | Reduced | 2.2M | 1.8M | -341.6K |
| D. E. Shaw & Co., Inc. | Increased | 302.8K | 641.6K | +338.8K |
| APG Asset Management N.V. | Reduced | 932.1K | 607.8K | -324.3K |
| AMERICAN CENTURY COMPANIES INC | Reduced | 414.4K | 90.9K | -323.5K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Reduced | 640.4K | 334.4K | -306.0K |
| Qube Research & Technologies Ltd | Increased | 188.8K | 492.6K | +303.8K |
| Holocene Advisors, LP | Reduced | 341.3K | 51.7K | -289.6K |
| CITADEL ADVISORS LLC | Reduced | 864.5K | 575.0K | -289.5K |
| Artisan Partners Limited Partnership | Reduced | 312.8K | 29.9K | -282.9K |
| Focus Partners Wealth | Reduced | 1.1M | 860.5K | -280.4K |
| OMERS ADMINISTRATION Corp | Reduced | 426.7K | 151.6K | -275.1K |
| Blue Sparrow, LLC /DE | Increased | 8.7K | 280.0K | +271.3K |
| VIKING GLOBAL INVESTORS LP | Increased | 1.7M | 1.9M | +269.4K |
| Capital Research Global Investors | Reduced | 4.4M | 4.1M | -267.1K |
| EdgePoint Investment Group Inc. | Increased | 1.9M | 2.2M | +260.7K |
| FIL Ltd | Increased | 531.9K | 789.3K | +257.5K |
| Alyeska Investment Group, L.P. | Increased | 124.9K | 376.1K | +251.1K |
| 1832 Asset Management L.P. | Reduced | 2.0M | 1.7M | -248.2K |
| TD Asset Management Inc | Reduced | 479.9K | 240.0K | -239.9K |
| Grantham, Mayo, Van Otterloo & Co. LLC | Increased | 2.5M | 2.7M | +237.0K |
| Freestone Grove Partners LP | New | 0 | 226.2K | +226.2K |
| NEUBERGER BERMAN GROUP LLC | Reduced | 885.6K | 667.5K | -218.1K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Reduced | 1.7M | 1.5M | -203.2K |
| Amundi | Reduced | 2.0M | 1.8M | -203.2K |
| NATIONAL BANK OF CANADA /FI/ | Increased | 266.2K | 468.9K | +202.7K |
| GOLDMAN SACHS GROUP INC | Reduced | 3.2M | 3.0M | -200.2K |
| CONGRESS ASSET MANAGEMENT CO | Reduced | 200.3K | 8.5K | -191.8K |
| Swedbank AB | Reduced | 1.5M | 1.3M | -181.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 2.9M | 3.1M | +179.7K |
| NATIXIS | Increased | 66.6K | 241.1K | +174.5K |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | Reduced | 221.0K | 47.7K | -173.3K |
| Bank of New York Mellon Corp | Increased | 3.8M | 3.9M | +171.8K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 187.9K | 17.0K | -170.9K |
| FARALLON CAPITAL MANAGEMENT LLC | Increased | 881.5K | 1.0M | +167.7K |
| Castle Hook Partners LP | New | 0 | 166.0K | +166.0K |
| SOUND SHORE MANAGEMENT INC /CT/ | New | 0 | 165.3K | +165.3K |
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.