Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionCentral Bank & Trust Co
Latest Disclosed Ownership1,809 shares
Latest Disclosed Value $ 889,178
Central Bank & Trust Co reports 9.82% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On April 7, 2026 - Central Bank & Trust Co filed a 13F-HR form disclosing ownership of 1,809 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $889,178 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 2,006 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -9.82% 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)
2026-04-07 2026-03-31 13F THERMO FISHER Equities 883556102 1,809 -197 -9.82 889 -23.49 0.1397
2026-01-09 2025-12-31 13F THERMO FISHER Equities 883556102 2,006 -83 -3.97 1,162 14.71 0.1797
2025-10-09 2025-09-30 13F THERMO FISHER Equities 883556102 2,089 144 7.40 1,013 28.55 0.1597
2025-07-09 2025-06-30 13F THERMO FISHER Equities 883556102 1,945 -49 -2.46 789 -20.56 0.1289
2025-04-14 2025-03-31 13F THERMO FISHER Equities 883556102 1,994 61 3.16 992 -1.29 0.1658
2025-01-16 2024-12-31 13F THERMO FISHER Equities 883556102 1,933 -53 -2.67 1,006 -18.16 0.1522
2024-10-30 2024-09-30 13F THERMO FISHER Equities 883556102 1,986 -7 -0.35 1,228 11.43 0.1694
2024-07-19 2024-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,993 -247 -11.03 1,102 -15.30 0.1532
2024-04-11 2024-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,240 -602 -21.18 1,302 -13.73 0.1856
2024-01-09 2023-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,842 -724 -20.30 1,508 -16.41 0.2338
2023-10-10 2023-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 3,566 -5 -0.14 1,805 -3.17 0.3138
2023-07-13 2023-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 3,571 62 1.77 1,863 -7.86 0.3158
2023-04-13 2023-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 3,509 54 1.56 2,022 6.31 0.3599
2023-01-18 2022-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 3,455 75 2.22 1,903 10.97 0.3590
2022-10-20 2022-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 3,380 600 21.58 1,714 13.51 0.3685
2022-07-22 2022-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,780 501 21.98 1,510 12.18 0.3079
2022-04-18 2022-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,279 -125 -5.20 1,346 -16.08 0.2148
2022-01-18 2021-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,404 -11 -0.46 1,604 16.23 0.2475
2021-10-19 2021-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,415 -44 -1.79 1,380 11.29 0.2268
2021-07-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,459 -22 -0.89 1,240 9.54 0.2002
2021-04-20 2021-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,481 -265 -9.65 1,132 -11.49 0.1931
2021-01-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,746 -14 -0.51 1,279 4.92 0.2209
2020-10-08 2020-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,760 -181 -6.15 1,219 14.35 0.2282
2020-07-15 2020-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,941 8 0.27 1,066 28.13 0.2105
2020-04-14 2020-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,933 -79 -2.62 832 -14.93 0.2003
2020-04-14 2020-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,375 -637 697 114,699.8468
2020-01-13 2019-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 3,012 312 11.56 978 24.43 0.1932
2019-10-23 2019-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,700 325 13.68 786 12.77 0.1691
2019-07-16 2019-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,375 195 8.94 697 16.75 0.1570
2019-04-22 2019-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,180 845 63.30 597 99.67 0.1340
2019-01-17 2018-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,335 920 221.69 299 196.04 0.0754
2018-11-23 2018-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 415 13 3.23 101 21.69 0.0234
2018-07-17 2018-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 402 66 19.64 83 20.29 0.0207
2018-04-27 2018-03-31 13F THERMO FISHER SCIENTIFIC FIXED INCOME/TAX-EXEMPT 883556102 336 -78 -18.84 69 -12.66 0.0172
2018-01-16 2017-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 414 52 14.36 79 16.18 0.0191
2017-10-13 2017-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 362 0 0.00 68 7.94 0.0169
2017-07-11 2017-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 362 0 0.00 63 12.50 0.0164
2017-04-28 2017-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 362 175 93.58 56 115.38 0.0145
2017-01-20 2016-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 187 0 0.00 26 -13.33 0.0069
2016-10-07 2016-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 187 -46 -19.74 30 -11.76 0.0084
2016-07-11 2016-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 233 0 0.00 34 3.03 0.0098
2016-04-11 2016-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 233 73 45.62 33 43.48 0.0092
2016-01-12 2015-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 0 0.00 23 15.00 0.0066
2015-10-13 2015-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 0 0.00 20 -4.76 0.0066
2015-07-30 2015-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 0 0.00 21 0.00 0.0067
2015-04-21 2015-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 160 0.00 21 0.0070
2015-01-27 2014-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 0 -160 -100.00 0 -100.00
2014-10-16 2014-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 0 0.00 19 5.56 0.0072
2014-09-11 2014-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 0 0.00 18 -5.26 0.0070
2014-04-07 2014-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 0 0.00 19 5.56 0.0074
2014-03-13 2013-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 0 0.00 18 20.00 0.0070
2013-10-30 2013-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 0 0.00 15 -99.89 0.0067
2013-07-09 2013-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 160 160 14,040 0.0067
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.