Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionLegacy Wealth Management, LLC / MS
Latest Disclosed Ownership6,130 shares
Latest Disclosed Value $ 3,013,079
Legacy Wealth Management, LLC / MS reports 24.54% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On April 10, 2026 - Legacy Wealth Management, LLC / MS filed a 13F-HR form disclosing ownership of 6,130 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $3,013,079 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 8,123 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -24.54% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-10 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,130 -1,993 -24.54 3,013 -35.98 0.8588
2026-01-05 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,123 980 13.72 4,707 35.85 1.2566
2025-10-23 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,143 -2,213 -23.65 3,464 -8.67 1.0428
2025-07-01 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,356 -1,427 -13.23 3,793 -29.30 1.1536
2025-04-03 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,783 7,054 189.17 5,366 176.69 1.7539
2025-01-06 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,729 -579 -13.44 1,940 -27.21 0.7707
2024-12-12 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,308 244 6.00 2,665 18.56 0.9787
2024-12-12 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,064 0 0.00 2,247 -4.87 0.9493
2024-12-12 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,064 0 0.00 2,362 9.50 1.0649
2024-12-12 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,064 0 0.00 2,157 4.86 1.0400
2024-12-12 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,064 -46 -1.12 2,057 -4.06 1.0692
2024-12-12 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,110 -8 -0.19 2,144 -9.65 1.0754
2024-12-12 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,118 0 0.00 2,373 4.68 1.3097
2024-12-12 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,118 0 0.00 2,268 8.57 1.3440
2024-12-12 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,118 6 0.15 2,089 -6.49 1.4095
2024-12-12 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,112 0 0.00 2,234 -8.03 1.3575
2024-12-12 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,112 6 0.15 2,429 -11.35 1.2679
2024-12-12 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,106 12 0.29 2,740 17.10 1.4023
2024-12-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,094 0 0.00 2,339 13.27 1.2511
2024-12-12 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,094 0 0.00 2,065 10.55 1.1449
2024-12-12 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,094 -15 -0.37 1,868 -2.35 1.1324
2024-12-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,109 -42 -1.01 1,914 4.42 1.2128
2024-12-12 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,151 -31 -0.74 1,833 20.92 1.2633
2024-12-12 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,182 249 6.33 1,515 35.87 1.1570
2024-12-12 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,933 2,223 130.00 1,115 100.90 1.0392
2024-12-12 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,710 1,710 556 0.4838
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.