Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionTrust Asset Management LLC
Latest Disclosed Ownership4,253 shares
Latest Disclosed Value $ 2,090,477
Trust Asset Management LLC ownership in TMO / Thermo Fisher Scientific Inc.

On April 20, 2026 - Trust Asset Management LLC filed a 13F-HR form disclosing ownership of 4,253 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $2,090,477 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 4,253 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 0.00% 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)
2026-04-20 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,253 0 0.00 2,090 -15.18 0.1497
2026-01-13 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,253 -161 -3.65 2,464 15.14 0.1681
2025-11-12 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,414 0 0.00 2,141 19.62 0.1471
2025-07-23 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,414 0 0.00 1,790 -18.53 0.1327
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,414 -111 -2.45 2,196 -6.71 0.1801
2025-01-16 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,525 0 0.00 2,354 -15.90 0.1840
2024-11-13 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,525 0 0.00 2,799 11.87 0.2232
2024-07-24 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,525 0 0.00 2,502 -4.83 0.2108
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,525 0 0.00 2,630 9.50 0.2303
2024-02-02 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,525 0 0.00 2,402 4.85 0.2320
2023-11-08 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,525 0 0.00 2,290 -2.97 0.2468
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,525 0 0.00 2,361 -9.51 0.2448
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,525 120 2.72 2,608 7.55 0.2935
2023-02-01 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,405 0 0.00 2,426 8.55 0.3019
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,405 292 7.10 2,234 -0.04 0.3046
2022-08-10 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,113 141 3.55 2,235 -4.73 0.3124
2022-05-10 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,972 142 3.71 2,346 -8.22 0.2884
2022-01-31 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,830 0 0.00 2,556 16.82 0.3158
2021-10-29 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,830 253 7.07 2,188 21.29 0.3012
2021-07-19 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,577 373 11.64 1,804 23.39 0.2449
2021-04-21 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,204 566 21.46 1,462 18.96 0.1944
2021-01-27 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,638 621 30.79 1,229 37.93 0.1867
2020-11-24 2020-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 2,017 890 78.97 891 118.38 0.1592
2020-10-28 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,017 890 891 165,137.6147
2020-07-20 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,127 1,127 408 0.0776
2018-11-16 2018-09-30 13F/A-1 THERMO FISHER SCIENTIFIC INC COM 883556102 0 -70 -100.00 0 -100.00
2018-08-13 2018-06-30 13F THERMO FISHER SCIENTIFIC INC COM 883556102 70 70 14 0.0055
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.