Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionEmpirical Financial Services, LLC d.b.a. Empirical Wealth Management
Latest Disclosed Ownership3,923 shares
Latest Disclosed Value $ 1,928,273
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management reports 18.59% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 4, 2026 - Empirical Financial Services, LLC d.b.a. Empirical Wealth Management filed a 13F-HR form disclosing ownership of 3,923 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $1,928,273 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 4,819 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -18.59% 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)
2026-05-04 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,923 -896 -18.59 1,928 -30.95 0.0230
2026-01-16 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,819 -288 -5.64 2,792 12.76 0.0497
2025-11-10 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,107 36 0.71 2,477 20.43 0.0496
2025-07-21 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,071 -289 -5.39 2,056 -22.91 0.0464
2025-05-08 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,360 1,132 26.77 2,667 21.28 0.0686
2025-01-22 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,228 -57 -1.33 2,200 -17.02 0.0597
2024-11-01 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,285 296 7.42 2,651 20.18 0.0744
2024-08-09 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,989 296 8.02 2,206 2.75 0.0654
2024-05-07 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,693 -190 -4.89 2,147 4.17 0.0648
2024-02-06 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,883 824 26.94 2,061 33.07 0.0684
2023-11-03 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,059 1,820 146.89 1,548 139.63 0.0606
2023-08-11 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,239 -413 -25.00 646 -32.14 0.0260
2023-05-09 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,652 153 10.21 952 15.39 0.0413
2023-02-08 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,499 -500 -25.01 826 -18.64 0.0389
2022-11-03 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,999 -20 -0.99 1,014 -7.57 0.0531
2022-08-02 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,019 -45 -2.18 1,097 -10.01 0.0576
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,064 -183 -8.14 1,219 -18.68 0.0608
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,247 1,163 107.29 1,499 142.16 0.0748
2021-11-02 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,084 397 57.79 619 78.39 0.0353
2021-08-12 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 687 105 18.04 347 30.45 0.0210
2021-05-17 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 582 -74 -11.28 266 -13.07 0.0213
2021-02-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 656 -11 -1.65 306 3.73 0.0233
2020-11-12 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 667 0 0.00 295 21.90 0.0252
2020-08-12 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 667 -126 -15.89 242 7.56 0.0226
2020-05-11 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 793 61 8.33 225 -5.46 0.0246
2020-02-13 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 732 9 1.24 238 12.80 0.0262
2019-11-13 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 723 -10 -1.36 211 -1.86 0.0255
2019-08-12 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 733 -65 -8.15 215 -1.38 0.0280
2019-05-13 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 798 798 218 0.0317
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.