Renaissance Technologies (RenTech)'s TMO Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 138,964 shares of Thermo Fisher Scientific Inc. (TMO) worth $68.3 M, representing 0.11% of the portfolio. First purchased in 2014-Q3, this long-term strategic position has been held for 30 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in TMO, demonstrating sustained confidence in this investment. Largest addition occurred in Q4 2016, adding 813,644 shares. Largest reduction occurred in Q3 2017, reducing 760,144 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Thermo Fisher Scientific (TMO) Holding Value Over Time
Track share changes against reported price movement
Quarterly Thermo Fisher Scientific (TMO) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +138,964 | New Buy | 138,964 | $491.53 |
| Q3 2025 | -458,950 | Sold Out | 0 | $0.00 |
| Q2 2025 | +303,706 | Add 195.63% | 458,950 | $405.46 |
| Q1 2025 | -26,100 | Reduce 14.39% | 155,244 | $497.60 |
| Q4 2024 | +132,393 | Add 270.46% | 181,344 | $520.23 |
| Q3 2024 | -186,898 | Reduce 79.24% | 48,951 | $618.57 |
| Q2 2024 | +235,849 | New Buy | 235,849 | $553.00 |
| Q3 2023 | -328,546 | Sold Out | 0 | $0.00 |
| Q2 2023 | +328,546 | New Buy | 328,546 | $0.52 |
| Q2 2022 | -31,900 | Sold Out | 0 | $0.00 |
| Q1 2022 | +31,900 | New Buy | 31,900 | $590.66 |
| Q3 2021 | -61,344 | Sold Out | 0 | $0.00 |
| Q2 2021 | -261,200 | Reduce 80.98% | 61,344 | $504.47 |
| Q1 2021 | +251,700 | Add 355.29% | 322,544 | $456.38 |
| Q4 2020 | +70,844 | New Buy | 70,844 | $465.78 |
| Q3 2020 | -191,917 | Sold Out | 0 | $0.00 |
| Q2 2020 | +65,500 | Add 51.81% | 191,917 | $362.34 |
| Q1 2020 | +126,417 | New Buy | 126,417 | $283.60 |
| Q3 2018 | -377,044 | Sold Out | 0 | $0.00 |
| Q2 2018 | +14,300 | Add 3.94% | 377,044 | $207.14 |
| Q1 2018 | +362,744 | New Buy | 362,744 | $206.46 |
| Q3 2017 | -760,144 | Sold Out | 0 | $0.00 |
| Q2 2017 | -612,900 | Reduce 44.64% | 760,144 | $174.47 |
| Q1 2017 | +559,400 | Add 68.75% | 1.37 M | $153.60 |
| Q4 2016 | +813,644 | New Buy | 813,644 | $141.10 |
| Q3 2015 | -188,344 | Sold Out | 0 | $0.00 |
| Q2 2015 | -61,800 | Reduce 24.71% | 188,344 | $129.76 |
| Q1 2015 | +43,500 | Add 21.05% | 250,144 | $134.34 |
| Q4 2014 | +168,800 | Add 446.04% | 206,644 | $125.29 |
| Q3 2014 | +37,844 | New Buy | 37,844 | $121.71 |
Renaissance Technologies (RenTech)'s Thermo Fisher Scientific Investment FAQs
Renaissance Technologies (RenTech) first purchased Thermo Fisher Scientific Inc. (TMO) in Q3 2014, acquiring 37,844 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Thermo Fisher Scientific Inc. (TMO) for 30 quarters since Q3 2014.
Renaissance Technologies (RenTech)'s largest addition to Thermo Fisher Scientific Inc. (TMO) was in Q4 2016, adding 813,644 shares worth $114.8 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 138,964 shares of Thermo Fisher Scientific Inc. (TMO), valued at approximately $68.3 M.
As of the Q1 2026 filing, Thermo Fisher Scientific Inc. (TMO) represents approximately 0.11% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Thermo Fisher Scientific Inc. (TMO) was 1,373,044 shares, as reported at the end of Q1 2017.