Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionCapital International Ltd /ca/
Latest Disclosed Ownership45,947 shares
Latest Disclosed Value $ 22,584,329
Capital International Ltd /ca/ reports 20.68% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 13, 2026 - Capital International Ltd /ca/ filed a 13F-HR form disclosing ownership of 45,947 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $22,584,329 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 57,928 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -20.68% 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 45,947 -11,981 -20.68 22,584 -32.72 0.8370
2026-02-11 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 57,928 1,855 3.31 33,566 23.42 1.1830
2025-11-13 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 56,073 -813 -1.43 27,197 17.92 0.9841
2025-08-13 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 56,886 -2,409 -4.06 23,065 -21.83 0.8836
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 59,295 13,247 28.77 29,505 23.17 1.2864
2025-02-13 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 46,048 -4,609 -9.10 23,956 -23.55 0.9771
2024-11-13 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 50,657 -101 -0.20 31,335 11.63 1.3504
2024-08-13 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 50,758 -5,162 -9.23 28,069 -13.64 1.2944
2024-05-14 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 55,920 8,619 18.22 32,501 29.46 1.5546
2024-02-13 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 47,301 -2,155 -4.36 25,107 0.29 1.2875
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 49,456 87 0.18 25,033 -2.81 1.4397
2023-08-11 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 49,369 61 0.12 25,758 -9.36 1.4436
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 49,308 246 0.50 28,420 5.19 1.7041
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 49,062 1,346 2.82 27,018 11.64 1.8621
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 47,716 5,424 12.83 24,201 5.33 1.6870
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 42,292 -470 -1.10 22,976 -9.03 1.7291
2022-05-19 2022-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 42,762 126 0.30 25,257 -11.22 1.4391
2022-05-16 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 42,762 126 25,257 1.4532
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 42,636 -38 -0.09 28,448 16.68 1.4449
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 42,674 -502 -1.16 24,381 11.94 1.3274
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 43,176 1,722 4.15 21,781 15.13 1.2000
2021-05-14 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 41,454 -2,608 -5.92 18,919 -7.82 1.1419
2021-02-16 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 44,062 1,022 2.37 20,523 8.00 1.1982
2020-11-13 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 43,040 649 1.53 19,003 23.72 1.2878
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 42,391 -384 -0.90 15,360 26.62 1.4377
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 42,775 42,775 12,131 1.3608
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 0 -15,199 -100.00 0 -100.00
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 15,199 0 0.00 3,148 0.32 0.5505
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 15,199 15,199 3,138 0.5621
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.