Ken Fisher's TMO Position Overview
Ken Fisher (via Fisher Asset Management, LLC) currently holds 2.79 M shares of Thermo Fisher Scientific Inc. (TMO) worth $1.62 B, representing 0.55% of the portfolio. First purchased in 2015-Q4, this long-term strategic position has been held for 41 quarters.
Based on 13F filings since 2013, Ken Fisher has maintained a long-term strategic position in TMO, representing a significant commitment to this investment thesis. Largest addition occurred in Q1 2020, adding 942,774 shares. Largest reduction occurred in Q1 2024, reducing 74,268 shares.
Analysis based on 13F filings available since 2013 Q2
Ken Fisher's Thermo Fisher Scientific (TMO) Holding Value Over Time
Track share changes against reported price movement
Quarterly Thermo Fisher Scientific (TMO) Trades by Ken Fisher
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | +71,320 | Add 2.62% | 2.79 M | $579.45 |
| Q3 2025 | +31,298 | Add 1.16% | 2.72 M | $485.02 |
| Q2 2025 | -25,615 | Reduce 0.94% | 2.69 M | $405.46 |
| Q1 2025 | +49,516 | Add 1.86% | 2.72 M | $497.60 |
| Q4 2024 | +29,344 | Add 1.11% | 2.67 M | $520.23 |
| Q3 2024 | +65,586 | Add 2.55% | 2.64 M | $618.57 |
| Q2 2024 | +73,574 | Add 2.95% | 2.57 M | $553.00 |
| Q1 2024 | -74,268 | Reduce 2.89% | 2.5 M | $581.21 |
| Q4 2023 | +589 | Add 0.02% | 2.57 M | $530.79 |
| Q3 2023 | +114,394 | Add 4.66% | 2.57 M | $506.17 |
| Q2 2023 | +60,712 | Add 2.53% | 2.46 M | $521.75 |
| Q1 2023 | +44,874 | Add 1.91% | 2.4 M | $576.42 |
| Q4 2022 | +46,035 | Add 2.00% | 2.35 M | $550.69 |
| Q3 2022 | -35,752 | Reduce 1.53% | 2.31 M | $507.19 |
| Q2 2022 | +83,936 | Add 3.72% | 2.34 M | $543.28 |
| Q1 2022 | +104,324 | Add 4.85% | 2.26 M | $590.65 |
| Q4 2021 | +139,982 | Add 6.96% | 2.15 M | $667.24 |
| Q3 2021 | +86,150 | Add 4.47% | 2.01 M | $571.33 |
| Q2 2021 | +112,351 | Add 6.19% | 1.93 M | $504.47 |
| Q1 2021 | +82,766 | Add 4.78% | 1.81 M | $456.38 |
| Q4 2020 | +116,353 | Add 7.20% | 1.73 M | $465.78 |
| Q3 2020 | +85,254 | Add 5.57% | 1.61 M | $441.52 |
| Q2 2020 | +585,222 | Add 61.96% | 1.53 M | $362.34 |
| Q1 2020 | +942,774 | Add 55392.13% | 944,476 | $283.60 |
| Q4 2019 | +123 | Add 7.79% | 1,702 | $324.91 |
| Q3 2019 | +668 | Add 73.33% | 1,579 | $291.32 |
| Q2 2019 | +911 | New Buy | 911 | $294.18 |
| Q1 2019 | -968 | Sold Out | 0 | $0.00 |
| Q4 2018 | -825 | Reduce 46.01% | 968 | $224.17 |
| Q3 2018 | +73 | Add 4.24% | 1,793 | $244.28 |
| Q2 2018 | -190 | Reduce 9.95% | 1,720 | $206.98 |
| Q1 2018 | -160 | Reduce 7.73% | 1,910 | $206.28 |
| Q4 2017 | +805 | Add 63.64% | 2,070 | $189.86 |
| Q3 2017 | -19 | Reduce 1.48% | 1,265 | $188.93 |
| Q2 2017 | -1,318 | Reduce 50.65% | 1,284 | $174.45 |
| Q1 2017 | +895 | Add 52.43% | 2,602 | $153.73 |
| Q4 2016 | +225 | Add 15.18% | 1,707 | $141.18 |
| Q3 2016 | +1,482 | New Buy | 1,482 | $159.24 |
| Q2 2016 | -1,642 | Sold Out | 0 | $0.00 |
| Q1 2016 | -225 | Reduce 12.05% | 1,642 | $145.55 |
| Q4 2015 | +1,867 | New Buy | 1,867 | $141.94 |
Ken Fisher's Thermo Fisher Scientific Investment FAQs
Ken Fisher first purchased Thermo Fisher Scientific Inc. (TMO) in Q4 2015, acquiring 1,867 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Ken Fisher has held Thermo Fisher Scientific Inc. (TMO) for 41 quarters since Q4 2015.
Ken Fisher's largest addition to Thermo Fisher Scientific Inc. (TMO) was in Q1 2020, adding 944,476 shares worth $267.85 M.
According to the latest 13F filing for Q4 2025, Ken Fisher's firm, Fisher Asset Management, LLC, owns 2,792,421 shares of Thermo Fisher Scientific Inc. (TMO), valued at approximately $1.62 B.
As of the Q4 2025 filing, Thermo Fisher Scientific Inc. (TMO) represents approximately 0.55% of Ken Fisher's publicly disclosed stock portfolio, making it one of their key holdings.
Ken Fisher's peak holding in Thermo Fisher Scientific Inc. (TMO) was 2,792,421 shares, as reported at the end of Q4 2025.