Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionGen-Wealth Partners Inc
Latest Disclosed Ownership555 shares
Latest Disclosed Value $ 272,799
Gen-Wealth Partners Inc reports 47.44% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 8, 2026 - Gen-Wealth Partners Inc filed a 13F-HR form disclosing ownership of 555 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $272,799 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,056 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -47.44% 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 INC COM Stock 883556102 555 -501 -47.44 273 -55.48 0.0860
2026-02-13 2025-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,056 -861 -44.91 612 -34.23 0.1961
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,917 -245 -11.33 930 6.05 0.3141
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 2,162 569 35.72 877 10.61 0.3384
2025-05-13 2025-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,593 269 20.32 792 15.12 0.3308
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,324 302 29.55 689 22.42 0.2961
2024-11-13 2024-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,022 323 46.21 562 45.60 0.2457
2024-08-13 2024-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 699 139 24.82 387 18.77 0.1868
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 560 560 325 0.1614
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.