Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionMeritage Portfolio Management
Latest Disclosed Ownership1,379 shares
Latest Disclosed Value $ 799,062
Meritage Portfolio Management reports 2.20% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On January 27, 2026 - Meritage Portfolio Management filed a 13F-HR form disclosing ownership of 1,379 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $799,062 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 28, 2025 disclosing 1,410 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -2.20% 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)
2026-01-27 2025-12-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,379 -31 -2.20 799 16.98 0.0530
2025-10-28 2025-09-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,410 0 0.00 684 19.61 0.0455
2025-07-25 2025-06-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,410 -75 -5.05 572 -22.63 0.0362
2025-04-28 2025-03-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,485 -14 -0.93 739 -5.26 0.0490
2025-01-27 2024-12-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,499 -11 -0.73 780 0.0484
2024-11-04 2024-09-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,510 0 0.00 1 0.0572
2024-08-09 2024-06-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,510 0 0.00 1 0.0527
2024-04-29 2024-03-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,510 -176 -10.44 1 0.0559
2024-02-02 2023-12-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,686 1,686 1 0.0590
2022-04-25 2022-03-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 0 -11,210 -100.00 0 -100.00
2022-01-28 2021-12-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 11,210 118 1.06 7,480 18.04 0.4242
2021-10-26 2021-09-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 11,092 122 1.11 6,337 14.51 0.3803
2021-07-26 2021-06-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 10,970 292 2.73 5,534 13.56 0.3335
2021-04-27 2021-03-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 10,678 1,888 21.48 4,873 19.03 0.3247
2021-02-03 2020-12-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 8,790 547 6.64 4,094 12.50 0.3007
2020-10-26 2020-09-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 8,243 62 0.76 3,639 22.77 0.3253
2020-07-27 2020-06-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 8,181 -364 -4.26 2,964 22.33 0.2849
2020-04-27 2020-03-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 8,545 -306 -3.46 2,423 -15.72 0.3289
2020-01-27 2019-12-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 8,851 -158 -1.75 2,875 9.57 0.2529
2019-10-25 2019-09-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 9,009 7,154 385.66 2,624 381.47 0.2490
2019-07-30 2019-06-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 1,855 1,855 -97.59 545 -92.30 0.0555
2014-01-31 2013-12-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 0 -76,830 -100.00 0 -100.00
2013-10-31 2013-09-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 76,830 2,970 4.02 7,080 13.26 0.9170
2013-07-31 2013-06-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 73,860 73,860 6,251 0.8958
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.