Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionEverett Harris & Co /ca/
Latest Disclosed Ownership15,469 shares
Latest Disclosed Value $ 7,603,478
Everett Harris & Co /ca/ reports 0.19% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 8, 2026 - Everett Harris & Co /ca/ filed a 13F-HR form disclosing ownership of 15,469 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $7,603,478 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 15,498 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -0.19% 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)
2026-05-08 2026-03-31 13F Thermo Fisher Scientific COM 883556102 15,469 -29 -0.19 7,603 -15.33 0.0979
2026-02-11 2025-12-31 13F Thermo Fisher Scientific COM 883556102 15,498 -33 -0.21 8,980 19.22 0.1086
2025-11-03 2025-09-30 13F Thermo Fisher Scientific COM 883556102 15,531 76 0.49 7,533 20.20 0.0929
2025-08-08 2025-06-30 13F Thermo Fisher Scientific COM 883556102 15,455 746 5.07 6,266 -14.39 0.0804
2025-05-12 2025-03-31 13F Thermo Fisher Scientific COM 883556102 14,709 203 1.40 7,319 -3.01 0.0940
2025-01-24 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,506 362 2.56 7,546 -13.75 0.0953
2024-10-18 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 14,144 56 0.40 8,749 12.31 0.1085
2024-08-02 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 14,088 55 0.39 7,791 -4.49 0.0996
2024-04-19 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,033 33 0.24 8,156 9.76 0.1081
2024-01-18 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,000 -86 -0.61 7,431 4.24 0.1063
2023-10-24 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 14,086 190 1.37 7,130 -1.67 0.1112
2023-07-27 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,896 433 3.22 7,250 -6.56 0.1100
2023-04-25 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,463 229 1.73 7,760 6.46 0.1258
2023-01-20 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,234 19 0.14 7,288 8.73 0.1253
2022-10-21 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,215 -77 -0.58 6,703 -7.17 0.1234
2022-07-22 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,292 -93 -0.69 7,221 -8.66 0.1249
2022-04-22 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,385 14 0.10 7,906 -11.39 0.1124
2022-02-02 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,371 212 1.61 8,922 18.68 0.1238
2021-11-03 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,159 725 5.83 7,518 19.85 0.1188
2021-07-29 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,434 -223 -1.76 6,273 8.60 0.1003
2021-05-13 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 12,657 -300 -2.32 5,776 -4.29 0.1002
2021-02-04 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 12,957 -24 -0.18 6,035 5.30 0.1067
2020-11-03 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,981 -190 -1.44 5,731 20.10 0.1119
2020-07-29 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,171 30 0.23 4,772 28.04 0.1053
2020-04-29 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,141 98 0.75 3,727 -12.04 0.0960
2020-01-27 2019-12-31 13F Thermo Fisher Scientific COM 883556102 13,043 -275 -2.06 4,237 9.23 0.0958
2019-11-06 2019-09-30 13F Thermo Fisher Scientific COM 883556102 13,318 -300 -2.20 3,879 -3.00 0.0959
2019-08-13 2019-06-30 13F Thermo Fisher Scientific COM 883556102 13,618 -107 -0.78 3,999 6.44 0.1001
2019-05-13 2019-03-31 13F Thermo Fisher Scientific COM 883556102 13,725 0 0.00 3,757 22.30 0.0974
2019-02-13 2018-12-31 13F Thermo Fisher Scientific COM 883556102 13,725 55 0.40 3,072 -7.94 0.0872
2018-11-14 2018-09-30 13F Thermo Fisher Scientific COM 883556102 13,670 593 4.53 3,337 23.18 0.0836
2018-07-27 2018-06-30 13F Thermo Fisher Scientific COM 883556102 13,077 -40 -0.30 2,709 0.04 0.0738
2018-04-20 2018-03-31 13F Thermo Fisher Scientific COM 883556102 13,117 -10 -0.08 2,708 8.62 0.0750
2018-02-01 2017-12-31 13F/A-1 Thermo Fisher Scientific COM 883556102 13,127 0 0.00 2,493 0.36 0.0695
2018-01-30 2017-12-31 13F Thermo Fisher Scientific COM 883556102 13,127 0 2,484
2017-10-11 2017-09-30 13F Thermo Fisher Scientific COM 883556102 13,127 0 0.00 2,484 8.47 0.0746
2017-08-03 2017-06-30 13F Thermo Fisher Scientific COM 883556102 13,127 492 3.89 2,290 17.98 0.0709
2017-04-26 2017-03-31 13F Thermo Fisher Scientific COM 883556102 12,635 -25 -0.20 1,941 8.68 0.0635
2017-02-07 2016-12-31 13F Thermo Fisher Scientific COM 883556102 12,660 0 0.00 1,786 -11.32 0.0627
2016-10-26 2016-09-30 13F Thermo Fisher Scientific COM 883556102 12,660 -275 -2.13 2,014 5.39 0.0712
2016-08-03 2016-06-30 13F Thermo Fisher Scientific COM 883556102 12,935 0 0.00 1,911 4.37 0.0682
2016-04-26 2016-03-31 13F Thermo Fisher Scientific COM 883556102 12,935 -50 -0.39 1,831 -0.60 0.0658
2016-02-09 2015-12-31 13F Thermo Fisher Scientific COM 883556102 12,985 0 0.00 1,842 15.99 0.0643
2015-11-12 2015-09-30 13F Thermo Fisher Scientific COM 883556102 12,985 -100 -0.76 1,588 -6.48 0.0582
2015-08-12 2015-06-30 13F Thermo Fisher Scientific COM 883556102 13,085 -100 -0.76 1,698 -4.12 0.0596
2015-05-12 2015-03-31 13F Thermo Fisher Scientific COM 883556102 13,185 200 1.54 1,771 8.85 0.0607
2015-02-11 2014-12-31 13F Thermo Fisher Scientific COM 883556102 12,985 0 0.00 1,627 2.97 0.0556
2014-11-06 2014-09-30 13F Thermo Fisher Scientific COM 883556102 12,985 0 0.00 1,580 3.13 0.0570
2014-08-05 2014-06-30 13F Thermo Fisher Scientific COM 883556102 12,985 -50 -0.38 1,532 -2.23 0.0566
2014-05-19 2014-03-31 13F Thermo Fisher Scientific COM 883556102 13,035 -100 -0.76 1,567 7.11 0.0583
2014-02-13 2013-12-31 13F Thermo Fisher Scientific COM 883556102 13,135 5,000 61.46 1,463 95.07 0.0547
2013-11-01 2013-09-30 13F Thermo Fisher Scientific COM 883556102 8,135 -325 -3.84 750 4.75 0.0306
2013-07-24 2013-06-30 13F Thermo Fisher Scientific COM 883556102 8,460 8,460 716 0.0299
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.