賽默飛世爾科技公司
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionAvalon Trust Co
Latest Disclosed Ownership35,923 shares
Latest Disclosed Value $ 17,657,233
Avalon Trust Co reports 2.47% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 6, 2026 - Avalon Trust Co filed a 13F-HR form disclosing ownership of 35,923 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $17,657,233 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 35,056 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 2.47% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-06 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 35,923 867 2.47 17,657 -13.08 1.2165
2026-02-09 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 35,056 -137 -0.39 20,313 19.01 1.3137
2025-11-10 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,193 -507 -1.42 17,069 17.93 1.1082
2025-08-08 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,700 -1,506 -4.05 14,475 -21.82 1.0583
2025-05-09 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 37,206 422 1.15 18,513 -3.26 1.4723
2025-02-10 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 36,784 2,162 6.24 19,136 -10.65 1.3608
2024-11-13 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 34,622 -274 -0.79 21,416 10.98 1.5835
2024-08-12 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 34,896 -1,251 -3.46 19,297 -8.14 1.5273
2024-05-07 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 36,147 -150 -0.41 21,009 9.04 1.7232
2024-02-06 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 36,297 495 1.38 19,266 6.32 1.7605
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,802 -260 -0.72 18,122 -3.69 1.7951
2023-08-09 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 36,062 2,718 8.15 18,815 -2.10 1.7016
2023-05-11 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 33,344 33,344 19,218 1.9059
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.