Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionHolderness Investments Co
Latest Disclosed Ownership900 shares
Latest Disclosed Value $ 442,377
Holderness Investments Co reports 1.42% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 12, 2026 - Holderness Investments Co filed a 13F-HR form disclosing ownership of 900 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $442,377 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 913 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -1.42% 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)
2026-05-12 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 900 -13 -1.42 442 -16.45 0.0888
2026-02-10 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 913 0 0.00 529 19.68 0.1076
2025-11-12 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 913 -37 -3.89 443 14.81 0.0904
2025-08-12 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 950 -344 -26.58 385 -40.12 0.0828
2025-05-13 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,294 17 1.33 644 -3.16 0.1501
2025-02-11 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,277 21 1.67 664 -14.43 0.1465
2024-11-12 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,256 137 12.24 777 25.57 0.1696
2024-08-13 2024-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,119 16 1.45 619 -3.59 0.1460
2024-08-13 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,119 16 619 0.1460
2024-05-13 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,103 -165 -13.01 641 -4.75 0.1567
2024-02-13 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,268 -247 -16.30 673 -12.14 0.1848
2023-11-15 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,515 0 0.00 767 -3.04 0.2984
2023-08-15 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,515 -45 -2.88 790 -12.12 0.2920
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,560 60 4.00 899 8.84 0.3594
2023-02-13 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,500 107 7.68 826 16.83 0.3561
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,393 -140 -9.13 707 -15.13 0.3213
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,533 0 0.00 833 -7.96 0.3477
2022-05-12 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,533 -50 -3.16 905 -14.30 0.3017
2022-02-09 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,583 0 0.00 1,056 16.81 0.3118
2021-11-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,583 70 4.63 904 18.48 0.2984
2021-08-09 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,513 95 6.70 763 17.93 0.2520
2021-05-11 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,418 35 2.53 647 0.47 0.2323
2021-02-05 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,383 253 22.39 644 29.06 0.2498
2020-11-09 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,130 50 4.63 499 27.62 0.2059
2020-08-13 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,080 35 3.35 391 32.09 0.1740
2020-05-13 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,045 20 1.95 296 -11.11 0.1673
2020-02-05 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,025 0 0.00 333 11.37 0.1428
2019-11-01 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,025 -100 -8.89 299 -9.39 0.1391
2019-08-02 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,125 325 40.62 330 50.68 0.1497
2019-05-20 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 800 800 219 0.1048
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.