Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionBlue Zone Wealth Advisors, LLC
Latest Disclosed Ownership4,508 shares
Latest Disclosed Value $ 2,057,000
Blue Zone Wealth Advisors, LLC reports 65.69% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 4, 2021 - Blue Zone Wealth Advisors, LLC filed a 13F-HR form disclosing ownership of 4,508 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $2,057,000 USD as of May 31, 2189. The entity filed a previous 13F-HR on April 16, 2026 disclosing 12,856 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -65.69% 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)
2021-05-04 2189-05-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,508 -8,630 -65.69 2,057 -72.98 0.8750
2026-04-16 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 12,856 -282 -2.15 6,319 -17.00 1.2858
2026-01-21 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,138 165 1.27 7,613 20.99 1.4559
2025-10-15 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,973 725 5.92 6,292 26.70 1.2562
2025-07-24 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,248 858 7.53 4,966 -12.37 1.2403
2025-04-11 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,390 1,264 12.48 5,668 7.57 1.5749
2025-01-30 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,126 225 2.27 5,268 -13.98 1.5191
2024-10-07 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,901 436 4.61 6,125 17.00 1.9055
2024-07-12 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,465 -186 -1.93 5,234 -6.69 1.8069
2024-04-18 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,651 198 2.09 5,609 11.80 1.9285
2024-01-10 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,453 222 2.40 5,018 7.38 2.0026
2023-10-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,231 143 1.57 4,673 -1.46 2.0499
2023-07-24 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,088 2,368 35.24 4,742 22.41 2.1879
2023-04-21 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,720 -4 -0.06 3,873 4.62 2.0705
2023-01-27 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,724 100 1.51 3,703 10.18 1.9770
2022-10-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,624 36 0.55 3,360 -6.12 1.7402
2022-07-13 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,588 32 0.49 3,579 -7.57 1.6226
2022-04-08 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,556 1,267 23.96 3,872 9.72 1.4440
2022-01-24 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,289 -3 -0.06 3,529 16.74 1.1664
2021-10-26 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,292 40 0.76 3,023 14.12 1.0479
2021-08-04 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,252 744 16.50 2,649 28.78 0.9942
2021-05-04 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,508 4,508 2,057 0.8750
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.