Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionArkadios Wealth Advisors
Latest Disclosed Ownership12,238 shares
Latest Disclosed Value $ 6,015,136
Arkadios Wealth Advisors reports 46.39% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 18, 2026 - Arkadios Wealth Advisors filed a 13F-HR form disclosing ownership of 12,238 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $6,015,136 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 8,360 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 46.39% 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)
2026-05-18 2026-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 12,238 3,878 46.39 6,015 24.17 0.0634
2026-02-13 2025-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 8,360 893 11.96 4,844 33.78 0.0939
2025-10-29 2025-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 7,467 2,081 38.64 3,622 65.87 0.0869
2025-08-04 2025-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 5,386 2,512 87.40 2,184 52.66 0.0644
2025-05-08 2025-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 2,874 1,947 210.03 1,430 196.68 0.0540
2025-01-15 2024-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 927 -346 -27.18 482 -38.75 0.0263
2024-10-24 2024-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,273 26 2.09 787 14.22 0.0446
2024-07-29 2024-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,247 239 23.71 690 17.78 0.0465
2024-04-30 2024-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,008 75 8.04 586 18.18 0.0454
2024-01-24 2023-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 933 37 4.13 495 9.27 0.0419
2023-10-13 2023-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 896 224 33.33 454 29.43 0.0430
2023-07-26 2023-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 672 -347 -34.05 350 -40.37 0.0407
2023-05-02 2023-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,019 -125 -10.93 588 -6.83 0.0700
2023-01-11 2022-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,144 308 36.84 630 0.0835
2022-10-21 2022-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 836 236 39.33 0 0.0643
2022-07-14 2022-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 600 -170 -22.08 0 0.0485
2022-05-02 2022-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 770 -109 -12.40 0 0.0596
2022-02-03 2021-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 879 -532 -37.70 1 0.0777
2021-10-19 2021-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,411 -60 -4.08 1 0.1162
2021-07-28 2021-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,471 415 39.30 1 0.0904
2021-04-26 2021-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,056 -75 -6.63 0 0.0794
2021-02-09 2020-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,131 948 518.03 1 -100.00 0.1106
2020-11-10 2020-09-30 13F THERMO FISHER SCIENTIFIC INC COM Common Stock 883556102 183 -11 -5.67 86 13.33 0.0431
2020-08-10 2020-06-30 13F THERMO FISHER SCIENTIFIC INC COM Common Stock 883556102 194 66 51.56 75 108.33 0.0418
2020-05-14 2020-03-31 13F THERMO FISHER SCIENTIFIC INC COM Common Stock 883556102 128 2 1.59 36 -14.29 0.0232
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC INC COM Common Stock 883556102 126 126 42 0.0254
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.