Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionFulton Breakefield Broenniman Llc
Latest Disclosed Ownership610 shares
Latest Disclosed Value $ 299,930
Fulton Breakefield Broenniman Llc reports 1.50% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On April 27, 2026 - Fulton Breakefield Broenniman Llc filed a 13F-HR form disclosing ownership of 610 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $299,930 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 601 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 1.50% 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)
2026-04-27 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 610 9 1.50 300 -14.08 0.0196
2026-01-21 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 601 -83 -12.13 348 5.14 0.0220
2025-10-16 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 684 62 9.97 332 31.35 0.0214
2025-07-23 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 622 148 31.22 252 7.23 0.0170
2025-05-01 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 474 -11 -2.27 236 -6.75 0.0170
2025-01-23 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 485 0 0.00 252 -15.72 0.0180
2024-10-16 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 485 -183 -27.40 300 -18.97 0.0209
2024-08-07 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 668 -8 -1.18 369 -5.87 0.0273
2024-04-29 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 676 0 0.00 393 9.50 0.0302
2024-02-02 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 676 -148 -17.96 359 -13.94 0.0288
2023-10-20 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 824 0 0.00 417 -3.03 0.0362
2023-07-19 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 824 -3 -0.36 430 -9.87 0.0355
2023-04-25 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 827 4 0.49 476 5.08 0.0409
2023-02-15 2022-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 823 0 0.00 453 8.63 0.0402
2023-01-31 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 823 0 0 0.0402
2022-10-17 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 823 1 0.12 417 -6.71 0.0392
2022-07-28 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 822 11 1.36 447 -6.68 0.0387
2022-04-27 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 811 -10 -1.22 479 -12.43 0.0421
2022-02-07 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 821 821 547 0.0405
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.