Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionMarino, Stram & Associates Llc
Latest Disclosed Ownership1,732 shares
Latest Disclosed Value $ 851,422
Marino, Stram & Associates Llc reports 0.12% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On April 29, 2026 - Marino, Stram & Associates Llc filed a 13F-HR form disclosing ownership of 1,732 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $851,422 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 1,730 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 0.12% 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 1,732 2 0.12 851 -15.07 0.1530
2026-01-16 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,730 -47 -2.64 1,003 16.38 0.1812
2025-11-03 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,777 -65 -3.53 862 15.42 0.1550
2025-07-18 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,842 30 1.66 747 -17.20 0.1507
2025-04-21 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,812 73 4.20 901 -0.33 0.2001
2025-01-17 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,739 -179 -9.33 905 -23.78 0.2002
2024-10-21 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,918 14 0.74 1,187 12.63 0.2648
2024-07-18 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,904 55 2.97 1,053 -1.96 0.2573
2024-04-24 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,849 0 0.00 1,075 9.48 0.2545
2024-01-30 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,849 -54 -2.84 981 1.87 0.2538
2023-10-30 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,903 -6 -0.31 963 -3.22 0.2821
2023-07-20 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,909 11 0.58 996 -8.97 0.2820
2023-04-20 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,898 8 0.42 1,094 5.10 0.3304
2023-01-19 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,890 28 1.50 1,041 10.17 0.3278
2022-10-17 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,862 57 3.16 944 -3.67 0.3406
2022-07-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,805 40 2.27 980 -5.95 0.3398
2022-04-25 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,765 56 3.28 1,042 -8.60 0.3286
2022-01-20 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,709 49 2.95 1,140 20.25 0.3500
2021-10-14 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,660 815 96.45 948 122.54 0.3277
2021-07-22 2021-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 845 -525 -38.32 426 -31.84 0.1112
2021-04-26 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,370 -9 -0.65 625 -2.65 0.2442
2021-01-19 2020-12-31 13F HEALTHPEAK PROPERTIES INC COM COM 883556102 1,379 28 2.07 642 7.72 0.2851
2020-10-22 2020-09-30 13F THERMO FISHER SCIENTIFIC Equities 883556102 1,351 8 0.60 596 22.63 0.3182
2020-07-20 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,343 218 19.38 486 52.35 0.2893
2020-05-05 2020-03-31 13F THERMO FISHER SCIENTIFIC Equities 883556102 1,125 399 54.96 319 35.17 0.2459
2020-01-31 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 726 726 236 0.1544
2019-07-19 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -673 -100.00 0 -100.00
2019-05-14 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 673 34 5.32 184 28.67 0.1327
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 639 9 1.43 143 -7.14 0.1249
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC Equities 883556102 630 42 7.14 154 26.23 0.1233
2018-08-13 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 588 -5 -0.84 122 -0.81 0.1085
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC Equities 883556102 593 87 17.19 123 28.13 0.1138
2018-03-09 2017-12-31 13F THERMO FISHER SCIENTIFIC Equities 883556102 506 506 96 0.0886
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.