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Below is a table of the TMO shares outstanding history going back to 2/5/2010:
Also see: TMO Market Cap History TMO YTD Return |
TMO Shares Outstanding History — Thermo Fisher Scientific Share Count Over Time
As of 1/31/2026 Thermo Fisher Scientific has 371.48 million TMO shares outstanding. Investors often track the TMO shares outstanding history to compare shareholder return trends against the change in share count over time.
This page shows TMO share count trends over time, with 64 historical shares outstanding datapoints presented, dating back to 2/5/2010.
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TMO Historical Shares Outstanding: -0.61% CAGR 
Mouse over chart for data details
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| TMO Stock Price Chart |
| About Thermo Fisher Scientific Inc |
| Thermo Fisher Scientific Inc. is engaged in helping life sciences research, increasing laboratory productivity, and improving patient health through diagnostics and the development and manufacture of life-changing therapies. Life Sciences Solutions segment provides a portfolio of reagents, instruments and consumables used in biological and medical research, discovery and production of new drugs and vaccines as well as diagnosis of infection and disease. It also provides proteomics solutions. Analytical Instruments segment provides instruments and the supporting consumables, software and services that are used for a range of applications in the laboratory and in the field. We show 64 historical shares outstanding datapoints in our coverage of TMO's shares outstanding history. Understanding the changing numbers of TMO shares outstanding — and comprehending the concept of differing number of shares outstanding in general comparing companies like TMO versus peers — is critical for investors. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies. Furthermore, via issuance of new shares over time, or the repurchase of existing shares, the number of shares outstanding can fluctuate over the course of history. With this page we aim to empower investors researching TMO by allowing them to research TMO shares outstanding history as well as any other stock in our coverage universe. |
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| TMO Share Performance |
| Shares Outstanding Peers |
| Thermo Fisher Scientific (TMO) is categorized under the Healthcare sector; to help you further research historical shares outstanding numbers, below are some other companies in the same sector:
TNDM Shares Outstanding History TNFA Shares Outstanding History TNGX Shares Outstanding History TNON Shares Outstanding History TNXP Shares Outstanding History TNYA Shares Outstanding History TOCA Shares Outstanding History TOI Shares Outstanding History TORC Shares Outstanding History TPIV Shares Outstanding History More Healthcare companies » |
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