Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionFirst Business Financial Services, Inc.
Latest Disclosed Ownership535 shares
Latest Disclosed Value $ 262,969
First Business Financial Services, Inc. reports 30.17% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 1, 2026 - First Business Financial Services, Inc. filed a 13F-HR form disclosing ownership of 535 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $262,969 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 411 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 30.17% 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)
2026-05-01 2026-03-31 13F Thermo Fisher Scientific Com 883556102 535 124 30.17 263 10.08 0.0234
2026-02-06 2025-12-31 13F Thermo Fisher Scientific Com 883556102 411 -31 -7.01 238 11.21 0.0219
2025-10-30 2025-09-30 13F Thermo Fisher Scientific Com 883556102 442 -424 -48.96 214 -39.03 0.0197
2025-07-31 2025-06-30 13F Thermo Fisher Scientific Com 883556102 866 -2,021 -70.00 351 -75.56 0.0317
2025-05-02 2025-03-31 13F Thermo Fisher Scientific Com 883556102 2,887 228 8.57 1,437 3.83 0.1413
2025-02-06 2024-12-31 13F Thermo Fisher Scientific Com 883556102 2,659 99 3.87 1,383 -12.63 0.1368
2024-11-06 2024-09-30 13F Thermo Fisher Scientific Com 883556102 2,560 200 8.47 1,584 21.30 0.1585
2024-08-02 2024-06-30 13F Thermo Fisher Scientific Com 883556102 2,360 1,995 546.58 1,305 515.57 0.1384
2024-05-15 2024-03-31 13F/A-1 Thermo Fisher Scientific Common 883556102 365 365 212 0.0227
2024-02-14 2023-12-31 13F Thermo Fisher Scientific Common 883556102 0 -415 -100.00 0 -100.00
2023-11-14 2023-09-30 13F Thermo Fisher Scientific Common 883556102 415 415 210 0.0268
2023-08-07 2023-06-30 13F Thermo Fisher Scientific Common 883556102 0 -358 -100.00 0 -100.00
2023-05-09 2023-03-31 13F Thermo Fisher Scientific Common 883556102 358 358 206 0.0259
2022-08-02 2022-06-30 13F Thermo Fisher Scientific Common 883556102 0 -393 -100.00 0 -100.00
2022-05-09 2022-03-31 13F Thermo Fisher Scientific Common 883556102 393 0 0.00 232 -11.45 0.0257
2022-02-10 2021-12-31 13F Thermo Fisher Scientific Common 883556102 393 393 262 0.0277
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.