賽默飛世爾科技公司
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionLyell Wealth Management, Lp
Latest Disclosed Ownership34,546 shares
Latest Disclosed Value $ 16,980,444
Lyell Wealth Management, Lp reports 0.94% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 7, 2026 - Lyell Wealth Management, Lp filed a 13F-HR form disclosing ownership of 34,546 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $16,980,444 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 34,223 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 0.94% 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)
2026-05-07 2026-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 34,546 323 0.94 16,980 -14.37 1.2478
2026-02-11 2025-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 34,223 1,453 4.43 19,831 24.76 1.4360
2025-11-06 2025-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 32,770 656 2.04 15,894 22.07 1.1806
2025-07-29 2025-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 32,114 1,333 4.33 13,021 -14.99 1.0285
2025-05-08 2025-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 30,781 1,013 3.40 15,317 -1.10 1.4317
2025-02-03 2024-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 29,768 408 1.39 15,486 -14.73 1.3882
2024-10-23 2024-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 29,360 247 0.85 18,161 12.81 1.6513
2024-08-08 2024-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 29,113 839 2.97 16,100 -2.03 1.5372
2024-05-03 2024-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 28,274 374 1.34 16,433 10.97 1.6709
2024-02-02 2023-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 27,900 2,679 10.62 14,809 16.00 1.6836
2023-10-31 2023-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 25,221 -429 -1.67 12,766 -4.60 1.7169
2023-08-04 2023-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 25,650 491 1.95 13,383 -7.71 1.7104
2023-05-03 2023-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 25,159 -519 -2.02 14,501 2.55 2.0299
2023-01-24 2022-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 25,678 -1,140 -4.25 14,141 3.96 2.2333
2022-10-24 2022-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 26,818 710 2.72 13,602 -4.16 2.3160
2022-07-28 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 26,108 -219 -0.83 14,192 -8.78 2.3145
2022-05-04 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 26,327 -1,142 -4.16 15,558 -15.15 2.0024
2022-02-08 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 27,469 267 0.98 18,336 17.93 2.0929
2021-11-10 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 27,202 58 0.21 15,548 13.49 1.8910
2021-08-09 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 27,144 1,197 4.61 13,700 15.63 1.6958
2021-05-07 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 25,947 1,632 6.71 11,848 4.56 1.7259
2021-02-04 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 24,315 1,626 7.17 11,331 13.05 1.8097
2020-11-04 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 22,689 -107 -0.47 10,023 21.27 1.8778
2020-07-30 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 22,796 951 4.35 8,265 33.31 1.8131
2020-05-11 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 21,845 415 1.94 6,200 -11.00 1.8535
2020-02-05 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 21,430 650 3.13 6,966 15.01 1.8600
2019-11-06 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 20,780 887 4.46 6,057 3.61 1.8203
2019-08-01 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 19,893 922 4.86 5,846 12.51 1.7623
2019-05-06 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 18,971 708 3.88 5,196 27.04 1.7346
2019-02-09 2018-12-31 13F Thermo Fisher SCNTFC COM 883556102 18,263 97 0.53 4,090 -7.82 1.7077
2018-10-30 2018-09-30 13F Thermo Fisher SCNTFC COM 883556102 18,166 554 3.15 4,437 21.53 1.4939
2018-07-27 2018-06-30 13F Thermo Fisher SCNTFC COM 883556102 17,612 385 2.23 3,651 2.56 1.3344
2018-05-04 2018-03-31 13F Thermo Fisher SCNTFC COM 883556102 17,227 640 3.86 3,560 12.94 1.3171
2018-01-30 2017-12-31 13F Thermo Fisher SCNTFC COM 883556102 16,587 360 2.22 3,152 2.57 1.2519
2017-10-26 2017-09-30 13F Thermo Fisher SCNTFC COM 883556102 16,227 205 1.28 3,073 9.83 1.3271
2017-07-27 2017-06-30 13F Thermo Fisher SCNTFC COM 883556102 16,022 812 5.34 2,798 19.62 1.3617
2017-05-08 2017-03-31 13F Thermo Fisher SCNTFC Equity 883556102 15,210 -260 -1.68 2,339 7.05 1.2656
2017-02-13 2016-12-31 13F Thermo Fisher SCNTFC Common Stock 883556102 15,470 15,470 2,185 1.3575
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.