賽默飛世爾科技公司
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionKeystone Financial Group
Latest Disclosed Ownership863 shares
Latest Disclosed Value $ 424,400
Keystone Financial Group reports 3.58% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 13, 2026 - Keystone Financial Group filed a 13F-HR form disclosing ownership of 863 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $424,400 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 895 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -3.58% 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)
2026-05-13 2026-03-31 13F THERMO FISHER Equtities 883556102 863 -32 -3.58 424 -18.15 0.0285
2026-02-06 2025-12-31 13F THERMO FISHER Equities 883556102 895 -8 -0.89 519 18.26 0.0384
2025-11-17 2025-09-30 13F/A-1 THERMO FISHER Common Stock 883556102 903 10 1.12 438 20.99 0.0335
2025-11-14 2025-09-30 13F THERMO FISHER Common Stock 883556102 893 0 362 0.0288
2025-08-13 2025-06-30 13F THERMO FISHER Common Stock 883556102 893 12 1.36 362 -17.35 0.0327
2025-05-13 2025-03-31 13F THERMO FISHER Common Stock 883556102 881 3 0.34 438 -3.95 0.0446
2025-02-13 2024-12-31 13F THERMO FISHER Common Stock 883556102 878 30 3.54 457 -12.98 0.0449
2025-02-19 2024-09-30 13F/A-3 THERMO FISHER Common Stock 883556102 848 101 13.52 525 26.88 0.0671
2025-02-18 2024-09-30 13F/A-2 THERMO FISHER Common Stock 883556102 8,921 8,174 511 0.0665
2024-11-12 2024-09-30 13F THERMO FISHER Common Stock 883556102 848 101 525 0.1732
2024-07-31 2024-06-30 13F THERMO FISHER Common Stock 883556102 747 21 2.89 413 -2.13 0.1480
2024-05-08 2024-03-31 13F THERMO FISHER Common Stock 883556102 726 51 7.56 422 17.88 0.0615
2024-02-14 2023-12-31 13F/A-1 THERMO FISHER Common Stock 883556102 675 -68 -9.15 358 -4.79 0.0623
2024-02-09 2023-12-31 13F THERMO FISHER Common Stock 883556102 675 -68 358 0.0623
2023-11-06 2023-09-30 13F THERMO FISHER Common Stock 883556102 743 0 0.00 376 -2.84 0.0630
2023-08-07 2023-06-30 13F THERMO FISHER Common Stock 883556102 743 0 0.00 388 -5.38 0.0659
2023-02-07 2022-12-31 13F THERMO FISHER Common Stock 883556102 743 0 0.00 409 8.49 0.0808
2022-11-10 2022-09-30 13F THERMO FISHER Common Stock 883556102 743 16 2.20 377 -4.56 0.0764
2022-08-05 2022-06-30 13F THERMO FISHER Common Stock 883556102 727 0 0.00 395 -7.93 0.0783
2022-05-13 2022-03-31 13F THERMO FISHER Common Stock 883556102 727 -18 -2.42 429 -13.68 0.0728
2022-02-11 2021-12-31 13F THERMO FISHER Common Stock 883556102 745 -9 -1.19 497 15.31 0.0815
2021-11-12 2021-09-30 13F THERMO FISHER Common Stock 883556102 754 -3 -0.40 431 12.83 0.0780
2021-08-13 2021-06-30 13F THERMO FISHER Common Stock 883556102 757 8 1.07 382 11.70 0.0692
2021-05-11 2021-03-31 13F THERMO FISHER Common Stock 883556102 749 -430 -36.47 342 -37.70 0.0666
2021-02-10 2020-12-31 13F THERMO FISHER Common Stock 883556102 1,179 90 8.26 549 14.14 0.1142
2020-11-13 2020-09-30 13F THERMO FISHER Common Stock 883556102 1,089 0 0.00 481 21.77 0.1181
2020-08-13 2020-06-30 13F THERMO FISHER Common Stock 883556102 1,089 0 0.00 395 27.83 0.1073
2020-05-05 2020-03-31 13F/A-1 THERMO FISHER Common Stock 883556102 1,089 -282 -20.57 309 -30.56 0.1024
2020-05-05 2020-03-31 13F THERMO FISHER Common Stock 883556102 1,371 0 445 119,550.3831
2020-02-06 2019-12-31 13F THERMO FISHER Common Stock 883556102 1,371 0 0.00 445 11.53 0.1196
2019-11-07 2019-09-30 13F THERMO FISHER Common Stock 883556102 1,371 2 0.15 399 -0.75 0.1227
2019-08-07 2019-06-30 13F THERMO FISHER Common Stock 883556102 1,369 -20 -1.44 402 5.79 0.1308
2019-05-07 2019-03-31 13F THERMO FISHER Common Stock 883556102 1,389 1,389 380 0.1351
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.