Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionCapital International Inc /ca/
Latest Disclosed Ownership83,831 shares
Latest Disclosed Value $ 41,205,451
Capital International Inc /ca/ reports 10.64% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 13, 2026 - Capital International Inc /ca/ filed a 13F-HR form disclosing ownership of 83,831 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $41,205,451 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 93,812 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -10.64% 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)
2026-05-13 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 83,831 -9,981 -10.64 41,205 -24.20 0.3177
2026-02-11 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 93,812 3,502 3.88 54,359 24.10 0.4276
2025-11-13 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 90,310 23,811 35.81 43,802 62.46 0.3503
2025-08-13 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 66,499 6,271 10.41 26,963 -10.03 0.2619
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 60,228 13,462 28.79 29,969 23.18 0.3634
2025-02-13 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 46,766 3,729 8.66 24,329 -8.61 0.2869
2024-11-13 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 43,037 232 0.54 26,621 12.46 0.3357
2024-08-13 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 42,805 -6,790 -13.69 23,671 -17.88 0.3149
2024-05-14 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 49,595 7,294 17.24 28,825 28.38 0.3892
2024-02-13 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 42,301 4,293 11.29 22,453 16.71 0.3500
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38,008 3,783 11.05 19,239 7.74 0.3686
2023-08-11 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 34,225 6,002 21.27 17,857 9.77 0.3243
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 28,223 -431 -1.50 16,267 3.09 0.3267
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 28,654 -408 -1.40 15,779 7.05 0.3406
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 29,062 -11,465 -28.29 14,740 -33.05 0.3292
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 40,527 -274 -0.67 22,018 -8.64 0.3054
2022-05-19 2022-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 40,801 -14,357 -26.03 24,099 -34.52 0.2700
2022-05-16 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 40,801 -14,357 24,099 0.2776
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 55,158 1,074 1.99 36,804 19.11 0.3423
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 54,084 -4,459 -7.62 30,900 4.63 0.2981
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 58,543 -1,040 -1.75 29,533 8.61 0.2634
2021-05-14 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 59,583 -3,430 -5.44 27,192 -7.35 0.2527
2021-02-16 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 63,013 3,181 5.32 29,350 11.10 0.2721
2020-11-13 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 59,832 -6,687 -10.05 26,417 9.61 0.2908
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 66,519 25,454 61.98 24,102 106.96 0.2939
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 41,065 41,065 11,646 0.1961
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 0 -20,724 -100.00 0 -100.00
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 20,724 20,724 6,086 0.4252
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.