Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionBrown, Lisle/cummings, Inc.
Latest Disclosed Ownership8,953 shares
Latest Disclosed Value $ 4,400,668
Brown, Lisle/cummings, Inc. reports 4.34% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On April 17, 2026 - Brown, Lisle/cummings, Inc. filed a 13F-HR form disclosing ownership of 8,953 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $4,400,668 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 8,581 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 4.34% 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)
2026-04-17 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,953 372 4.34 4,401 -11.50 1.0990
2026-01-23 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,581 1,775 26.08 4,972 50.62 1.2250
2025-10-10 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,806 -200 -2.85 3,301 16.23 0.8472
2025-07-16 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,006 340 5.10 2,841 -14.38 0.7560
2025-04-22 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,666 -2 -0.03 3,317 -4.35 0.9614
2025-01-27 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,668 -59 -0.88 3,469 -16.65 1.0353
2024-10-18 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,727 300 4.67 4,161 17.08 1.2644
2024-07-17 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,427 15 0.23 3,554 -4.62 1.1582
2024-07-01 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,412 360 5.95 3,727 16.00 1.2659
2024-07-01 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,052 175 2.98 3,212 8.00 1.1916
2024-07-01 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,877 144 2.51 2,975 -0.57 1.3459
2024-07-01 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,733 235 4.27 2,991 -5.59 1.3380
2024-07-01 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,498 -50 -0.90 3,169 3.70 1.6077
2024-07-01 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,548 261 4.94 3,055 13.95 1.6406
2024-07-01 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,287 -35 -0.66 2,682 -7.26 1.5656
2024-07-01 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,322 -140 -2.56 2,891 -10.38 1.6002
2024-07-01 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,462 130 2.44 3,226 -9.31 1.5499
2024-07-01 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,332 5,332 3,558 1.7781
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.