Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionLake Street Financial Llc
Latest Disclosed Ownership430 shares
Latest Disclosed Value $ 211,358
Lake Street Financial Llc reports 0.47% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On April 13, 2026 - Lake Street Financial Llc filed a 13F-HR form disclosing ownership of 430 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $211,358 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 428 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 0.47% 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.

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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)
2026-04-13 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 430 2 0.47 211 -14.92 0.0269
2026-01-07 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 428 -5 -1.15 248 18.10 0.0303
2025-11-10 2025-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 433 433 210 0.0271
2025-08-11 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -431 -100.00 0 -100.00
2025-04-10 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 431 -34 -7.31 214 -11.20 0.0349
2025-01-15 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 465 -1,075 -69.81 242 -74.68 0.0386
2024-10-22 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,540 -2,573 -62.56 953 -58.14 0.1527
2024-07-12 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,113 1,084 35.79 2,274 29.20 0.2945
2024-04-19 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,029 5 0.17 1,760 9.66 0.2430
2024-01-10 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,024 1,261 71.53 1,605 81.15 0.2527
2023-10-20 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,763 16 0.92 887 -2.74 0.1595
2023-07-18 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,747 41 2.40 911 -7.32 0.1601
2023-04-17 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,706 -96 -5.33 983 -0.91 0.1834
2023-01-25 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,802 102 6.00 992 15.08 0.2052
2022-10-21 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,700 110 6.92 862 -0.23 0.1980
2022-07-12 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,590 815 105.16 864 88.65 0.1820
2022-05-09 2022-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 775 -8 -1.02 458 -12.26 0.0823
2022-04-29 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,667 2,884 2,166 1.3921
2022-01-24 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 783 104 15.32 522 34.54 0.0916
2021-10-07 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 679 -18 -2.58 388 9.30 0.0942
2021-07-14 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 697 -188 -21.24 355 -12.13 0.0904
2021-04-16 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 885 -438 -33.11 404 -34.42 0.1116
2021-01-19 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,323 -22 -1.64 616 3.70 0.1779
2020-10-09 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,345 -5 -0.37 594 21.47 0.1995
2020-07-14 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,350 141 11.66 489 42.57 0.1812
2020-04-07 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,209 32 2.72 343 -10.21 0.1562
2020-01-13 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,177 103 9.59 382 22.04 0.1463
2019-10-18 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,074 211 24.45 313 23.72 0.1424
2019-07-29 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 863 863 253 0.1490
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.