Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionSignet Financial Management, Llc
Latest Disclosed Ownership545 shares
Latest Disclosed Value $ 267,884
Signet Financial Management, Llc reports 22.47% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 5, 2026 - Signet Financial Management, Llc filed a 13F-HR form disclosing ownership of 545 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $267,884 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 445 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 22.47% 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)
2026-05-05 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 545 100 22.47 268 3.89 0.0300
2026-01-08 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 445 8 1.83 258 21.80 0.0288
2025-11-07 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 437 437 212 0.0246
2025-07-15 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -436 -100.00 0 -100.00
2025-04-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 436 17 4.06 217 -0.46 0.0293
2025-01-13 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 419 419 218 0.0278
2024-08-02 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,024 -100.00 0 -100.00
2024-04-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,024 -34 -3.21 595 5.88 0.0818
2024-01-30 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,058 -19 -1.76 562 2.94 0.0841
2023-10-25 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,077 -5 -0.46 545 -3.37 0.0900
2023-07-18 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,082 0 0.00 565 -9.47 0.0893
2023-04-17 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,082 -2 -0.18 623 4.36 0.1050
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,084 -36 -3.21 597 5.11 0.1066
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,120 2 0.18 568 -6.43 0.1112
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,118 -58 -4.93 607 -12.54 0.1156
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,176 4 0.34 694 -11.25 0.1161
2022-02-11 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,172 5 0.43 782 17.24 0.1184
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,167 1,167 667 0.1152
2021-08-09 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,148 -100.00 0 -100.00
2021-05-05 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,148 10 0.88 524 -1.13 0.0982
2021-02-10 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,138 9 0.80 530 -8.15 0.1072
2020-11-05 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,129 228 25.31 577 55.95 0.1276
2020-08-18 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 901 0 0.00 370 23.75 0.0823
2020-05-20 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 901 -36 -3.84 299 -1.64 0.0704
2020-01-23 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 937 0 0.00 304 10.55 0.0567
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 937 37 4.11 275 6.59 0.0538
2019-08-13 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 900 0 0.00 258 3.20 0.0512
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 900 0 0.00 250 24.38 0.0489
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 900 0 0.00 201 -8.64 0.0438
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 900 -1 -0.11 220 17.65 0.0385
2018-08-10 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 901 900 90,000.00 187 0.0330
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1 1 0 0.0000
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.