Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionEmpirical Finance, LLC
Latest Disclosed Ownership13,042 shares
Latest Disclosed Value $ 6,410,571
Empirical Finance, LLC reports 0.21% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 14, 2026 - Empirical Finance, LLC filed a 13F-HR/A form disclosing ownership of 13,042 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $6,410,571 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 13,070 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -0.21% 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)
2026-05-14 2026-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 13,042 -28 -0.21 6,411 -15.36 0.3012
2026-05-14 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,042 -28 6,411 0.3012
2026-02-12 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,070 -973 -6.93 7,573 11.19 0.3613
2025-11-13 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 14,043 128 0.92 6,811 20.74 0.3243
2025-08-11 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,915 489 3.64 5,642 -15.55 0.2954
2025-05-07 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,426 171 1.29 6,681 -3.12 0.4034
2025-01-28 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,255 -175 -1.30 6,896 -17.00 0.3989
2024-11-06 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,430 271 2.06 8,307 14.17 0.4844
2024-07-30 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,159 -984 -6.96 7,277 -11.48 0.4546
2024-05-06 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,143 467 3.41 8,220 13.24 0.5045
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,676 70 0.51 7,259 5.42 0.5062
2023-11-02 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,606 1,259 10.20 6,887 6.89 0.5059
2023-07-27 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,347 1,440 13.20 6,442 2.48 0.4990
2023-04-05 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,907 470 4.50 6,286 9.38 0.5888
2023-02-21 2022-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 10,437 861 8.99 5,748 18.32 0.5951
2023-01-24 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,437 861 6 0.5951
2022-11-04 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,576 1,568 19.58 4,857 11.63 0.5760
2022-08-01 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,008 429 5.66 4,351 -2.81 0.5545
2022-04-21 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,579 810 11.97 4,477 -0.89 0.5015
2022-02-04 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,769 1,794 36.06 4,517 58.94 0.5333
2021-11-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,975 274 5.83 2,842 19.81 0.4284
2021-08-10 2021-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 4,701 640 15.76 2,372 25.37 0.3867
2021-08-04 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,061 0 1,892 0.3327
2021-05-13 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,061 0 0.00 1,892 0.00 0.3327
2021-02-02 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,061 712 21.26 1,892 27.92 0.3327
2020-10-28 2020-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 3,349 690 25.95 1,479 53.58 0.3169
2020-10-26 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 941 -1,718 274 76,514.7263
2020-07-20 2020-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 2,659 331 14.22 963 45.91 0.2464
2020-04-16 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,328 833 55.72 660 35.80 0.2052
2020-01-27 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,495 554 58.87 486 77.37 0.1182
2019-10-30 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 941 19 2.06 274 1.11 0.0765
2019-07-09 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 922 -16 -1.71 271 5.45 0.0743
2019-05-10 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 938 938 0.00 257 0.00 0.0654
2018-07-09 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -938 -100.00 0 -100.00
2019-05-10 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 938 938 257 0.0538
2018-02-01 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,171 -100.00 0 -100.00
2017-10-31 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,171 1,171 222 0.0766
2017-05-11 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -175 -100.00 0 -100.00
2017-02-13 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 175 175 25 0.0169
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.