Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionProspera Financial Services Inc
Latest Disclosed Ownership15,183 shares
Latest Disclosed Value $ 7,466,016
Prospera Financial Services Inc reports 0.54% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On April 14, 2026 - Prospera Financial Services Inc filed a 13F-HR form disclosing ownership of 15,183 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $7,466,016 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 15,102 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 0.54% 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)
2026-04-14 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 15,183 81 0.54 7,466 -14.71 0.1202
2026-02-09 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 15,102 695 4.82 8,754 25.24 0.1437
2025-11-06 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 14,407 -5,034 -25.89 6,990 -11.33 0.1192
2025-08-06 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 19,441 10,913 127.97 7,884 85.74 0.1469
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,528 1,026 13.68 4,245 8.74 0.0975
2025-02-13 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,502 2,953 64.92 3,904 38.65 0.0909
2024-11-07 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,549 746 19.62 2,816 33.79 0.0719
2024-08-13 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,803 997 35.53 2,105 28.92 0.0585
2024-08-13 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,806 187 7.14 1,633 17.41 0.0486
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,619 -368 -12.32 1,390 -8.13 0.0460
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,987 -394 -11.65 1,513 -14.28 0.0585
2023-08-08 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,381 305 9.92 1,765 -0.45 0.0676
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,076 -30 -0.97 1,774 3.68 0.0729
2023-02-08 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,106 274 9.68 1,711 19.00 0.0857
2022-10-27 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,832 77 2.79 1,437 -4.07 0.0750
2022-08-08 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,755 -46 -1.64 1,498 -9.49 0.0764
2022-05-04 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,801 1,095 64.19 1,655 45.30 0.0693
2022-02-10 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,706 -116 -6.37 1,139 9.41 0.0492
2021-11-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,822 -254 -12.24 1,041 -0.48 0.0519
2021-08-16 2021-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 2,076 -39 -1.84 1,046 8.51 0.0524
2021-08-12 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,076 -39 1,048 0.0540
2021-05-06 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,115 -90 -4.08 964 -6.13 0.0572
2021-02-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,205 2,039 1,228.31 1,027 1,306.85 0.0708
2020-11-04 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 166 -876 -84.07 73 -80.64 0.0279
2020-08-10 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,042 94 9.92 377 40.15 0.0334
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 948 948 269 0.0285
2018-10-25 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,052 -100.00 0 -100.00
2018-07-18 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,052 -147 -12.26 218 -12.80 0.0295
2018-04-12 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,199 1,199 250 0.0349
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.