Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionTrue North Advisors, LLC
Latest Disclosed Ownership985 shares
Latest Disclosed Value $ 484,157
True North Advisors, LLC reports 7.16% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 7, 2026 - True North Advisors, LLC filed a 13F-HR form disclosing ownership of 985 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $484,157 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 1,061 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -7.16% 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)
2026-05-07 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 985 -76 -7.16 484 -21.17 0.0552
2026-01-22 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,061 117 12.39 615 34.35 0.0795
2025-10-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 944 418 79.47 458 114.55 0.0727
2025-07-16 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 526 -149 -22.07 213 -36.42 0.0409
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 675 51 8.17 336 3.40 0.0595
2025-01-17 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 624 55 9.67 325 -7.69 0.0765
2024-10-08 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 569 -87 -13.26 352 -3.04 0.0921
2024-08-12 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 656 9 1.39 363 -3.47 0.0969
2024-04-12 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 647 -38 -5.55 376 3.31 0.1038
2024-01-22 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 685 -62 -8.30 364 -3.97 0.0933
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 747 79 11.83 378 8.62 0.1164
2023-08-10 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 668 668 348 0.0988
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.