Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionHighMark Wealth Management LLC
Latest Disclosed Ownership75 shares
Latest Disclosed Value $ 36,737
HighMark Wealth Management LLC reports 5.06% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 6, 2026 - HighMark Wealth Management LLC filed a 13F-HR form disclosing ownership of 75 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $36,737 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 79 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -5.06% 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)
2026-05-06 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 75 -4 -5.06 37 -20.00 0.0150
2026-02-05 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 79 4 5.33 46 25.00 0.0186
2025-10-20 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 75 -2 -2.60 36 16.13 0.0159
2025-07-21 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 77 45 140.62 31 106.67 0.0152
2025-04-24 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 32 -5 -13.51 16 -21.05 0.0094
2025-01-31 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 37 -69 -65.09 19 -70.77 0.0111
2024-10-17 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 106 7 7.07 66 20.37 0.0360
2024-07-29 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 99 6 6.45 55 -5.26 0.0331
2024-04-29 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 93 2 2.20 58 18.75 0.0358
2024-01-23 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 91 -1 -1.09 48 4.35 0.0357
2023-10-18 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 92 5 5.75 47 6.98 0.0387
2023-07-26 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 87 2 2.35 44 -12.24 0.0330
2023-04-21 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 85 0 0.00 49 6.52 0.0383
2023-02-02 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 85 -7 -7.61 47 -2.13 0.0354
2022-10-21 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 92 2 2.22 47 -4.08 0.0401
2022-07-19 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 90 1 1.12 49 -7.55 0.0394
2022-04-25 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 89 -16 -15.24 53 -24.29 0.0354
2022-01-20 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 105 62 144.19 70 180.00 0.0444
2021-11-01 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 43 -4 -8.51 25 8.70 0.0184
2021-08-02 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 47 0 0.00 23 9.52 0.0169
2021-04-22 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 47 0 0.00 21 -4.55 0.0167
2021-01-27 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 47 6 14.63 22 22.22 0.0189
2020-10-26 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 41 3 7.89 18 28.57 0.0162
2020-07-22 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38 -493 -92.84 14 -90.67 0.0154
2020-11-19 2020-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 531 -19 -3.45 150 -15.73 0.1810
2020-04-30 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 531 -19 151 181,342.6667
2020-03-19 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 550 550 178 0.1900
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.