Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionFrank, Rimerman Advisors LLC
Latest Disclosed Ownership4,463 shares
Latest Disclosed Value $ 2,193,699
Frank, Rimerman Advisors LLC reports 6.96% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On April 29, 2026 - Frank, Rimerman Advisors LLC filed a 13F-HR form disclosing ownership of 4,463 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $2,193,699 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 4,797 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -6.96% 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)
2026-04-29 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,463 -334 -6.96 2,194 -21.09 0.1438
2026-01-15 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,797 53 1.12 2,780 20.83 0.1762
2025-11-04 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,744 88 1.89 2,301 21.89 0.1476
2025-08-11 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,656 -269 -5.46 1,888 -22.98 0.1269
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,925 104 2.16 2,451 -2.31 0.1942
2025-02-10 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,821 140 2.99 2,508 -13.37 0.1821
2024-10-24 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,681 83 1.81 2,896 13.89 0.2054
2024-08-13 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,598 4,574 19,058.33 2,543 19,453.85 0.1800
2024-05-09 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 24 0 0.00 14 8.33 0.0027
2024-02-13 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 24 24 13 0.0027
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 0 0 0.0000
2023-09-07 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,845 -100.00 0 -100.00
2023-09-07 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,845 0 0.00 1,090 -11.54 0.3490
2023-09-07 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,845 247 15.46 1,231 34.98 0.4130
2023-09-07 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,598 1,598 913 0.3527
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.