Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionCitizens Financial Group Inc/ri
Latest Disclosed Ownership38,786 shares
Latest Disclosed Value $ 19,064,826
Citizens Financial Group Inc/ri reports 3.54% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 1, 2026 - Citizens Financial Group Inc/ri filed a 13F-HR form disclosing ownership of 38,786 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $19,064,826 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 40,209 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -3.54% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-01 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 38,786 -1,423 -3.54 19,065 -18.18 0.2239
2026-01-30 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 40,209 -305 -0.75 23,299 18.57 0.3123
2025-10-24 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 40,514 6,789 20.13 19,650 43.70 0.2692
2025-08-08 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 33,725 4,736 16.34 13,674 -5.25 0.2197
2025-05-09 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 28,989 -719 -2.42 14,432 -6.62 0.2848
2025-02-07 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 29,708 1,892 6.80 15,455 -10.21 0.3013
2024-11-08 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 27,816 443 1.62 17,212 13.71 0.3462
2024-08-09 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 27,373 8,491 44.97 15,137 37.94 0.3358
2024-05-17 2024-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 18,882 773 4.27 10,975 14.17 0.3665
2024-05-10 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 18,109 0 9,612 0.2316
2024-02-02 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 18,109 6 0.03 9,612 4.90 0.3315
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 18,103 -8,585 -32.17 9,164 -34.19 0.3734
2023-08-04 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 26,688 -377 -1.39 13,925 -10.74 0.5066
2023-05-10 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 27,065 -385 -1.40 15,601 3.20 0.5709
2023-02-09 2022-12-31 13F THERMO FISHER SCIENTIFIC INC COM COM 883556102 27,450 -7,972 -22.51 15,118 -15.86 0.5900
2022-11-10 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,422 -113 -0.32 17,967 -6.94 0.7974
2022-08-05 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,535 -646 -1.79 19,306 -9.66 0.8089
2022-05-12 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 36,181 -7,029 -16.27 21,371 -25.88 0.7462
2022-02-10 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 43,210 -1,215 -2.73 28,832 13.59 0.9673
2021-11-05 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 44,425 -8,164 -15.52 25,382 -4.33 0.9376
2021-08-04 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 52,589 366 0.70 26,530 11.32 1.1516
2021-05-14 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 52,223 -327 -0.62 23,833 -2.63 1.2551
2021-02-11 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 52,550 -749 -1.41 24,477 4.06 1.4025
2020-11-12 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 53,299 526 1.00 23,523 23.02 1.5037
2020-08-12 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 52,773 -716 -1.34 19,122 26.06 1.3404
2020-05-08 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 53,489 -1,715 -3.11 15,169 -15.42 1.2401
2020-02-07 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 55,204 -1,747 -3.07 17,934 8.11 1.1962
2019-11-01 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 56,951 -895 -1.55 16,588 -2.35 1.1966
2019-08-09 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 57,846 9,681 20.10 16,988 28.86 1.2443
2019-05-09 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 48,165 347 0.73 13,183 23.19 0.9713
2019-02-11 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 47,818 -525 -1.09 10,701 -9.31 0.9723
2018-11-02 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 48,343 -570 -1.17 11,800 16.47 0.9307
2018-07-27 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 48,913 -1,100 -2.20 10,131 -1.89 0.8492
2018-05-11 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 50,013 -3,807 -7.07 10,326 1.05 0.8668
2018-02-09 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 53,820 95 0.18 10,219 0.53 0.8240
2017-11-13 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 53,725 -1,579 -2.86 10,165 5.35 0.8669
2017-08-10 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 55,304 -1,354 -2.39 9,649 10.87 0.8530
2017-05-11 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 56,658 6,206 12.30 8,703 22.25 0.7706
2017-02-10 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 50,452 -2,276 -4.32 7,119 -15.12 0.6886
2016-11-10 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 52,728 -127 -0.24 8,387 7.39 0.7938
2016-08-12 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 52,855 -742 -1.38 7,810 2.91 0.7499
2016-05-13 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 53,597 3,621 7.25 7,589 2.46 0.7294
2016-02-16 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 49,976 49,976 7,407 0.7046
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.