Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionWedbush Securities Inc
Latest Disclosed Ownership3,558 shares
Latest Disclosed Value $ 1,749
Wedbush Securities Inc reports 8.97% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On April 21, 2026 - Wedbush Securities Inc filed a 13F-HR form disclosing ownership of 3,558 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $1,749 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 3,265 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 8.97% 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)
2026-04-21 2026-03-31 13F THERMO FISHER COM 883556102 3,558 293 8.97 2 0.00 0.0510
2026-02-12 2025-12-31 13F THERMO FISHER COM 883556102 3,265 -255 -7.24 2 0.00 0.0552
2025-11-06 2025-09-30 13F THERMO FISHER COM 883556102 3,520 -546 -13.43 2 0.00 0.0558
2025-08-06 2025-06-30 13F THERMO FISHER COM 883556102 4,066 270 7.11 2 0.00 0.0576
2025-05-06 2025-03-31 13F THERMO FISHER COM 883556102 3,796 131 3.57 2 0.00 0.0693
2025-02-13 2024-12-31 13F THERMO FISHER COM 883556102 3,665 -144 -3.78 2 -50.00 0.0679
2024-11-08 2024-09-30 13F THERMO FISHER COM 883556102 3,809 -493 -11.46 2 0.00 0.0874
2024-08-07 2024-06-30 13F THERMO FISHER COM 883556102 4,302 34 0.80 2 0.00 0.0850
2024-05-15 2024-03-31 13F THERMO FISHER COM 883556102 4,268 3 0.07 2 0.00 0.0926
2024-02-12 2023-12-31 13F THERMO FISHER COM 883556102 4,265 -875 -17.02 2 0.00 0.1003
2023-11-14 2023-09-30 13F THERMO FISHER COM 883556102 5,140 -203 -3.80 3 0.00 0.1294
2023-08-14 2023-06-30 13F THERMO FISHER COM 883556102 5,343 -1,594 -22.98 3 -33.33 0.1330
2023-05-09 2023-03-31 13F THERMO FISHER COM 883556102 6,937 -282 -3.91 4 0.00 0.2001
2023-01-31 2022-12-31 13F THERMO FISHER COM 883556102 7,219 -557 -7.16 4 -99.92 0.2185
2022-10-18 2022-09-30 13F THERMO FISHER COM 883556102 7,776 -234 -2.92 3,944 -9.37 0.2215
2022-07-21 2022-06-30 13F THERMO FISHER COM 883556102 8,010 -819 -9.28 4,352 -16.55 0.2370
2022-04-19 2022-03-31 13F THERMO FISHER COM 883556102 8,829 156 1.80 5,215 -9.88 0.2386
2022-01-13 2021-12-31 13F THERMO FISHER COM 883556102 8,673 606 7.51 5,787 25.56 0.2493
2021-10-08 2021-09-30 13F THERMO FISHER COM 883556102 8,067 173 2.19 4,609 15.75 0.2187
2021-07-27 2021-06-30 13F THERMO FISHER COM 883556102 7,894 -109 -1.36 3,982 9.01 0.1882
2021-04-26 2021-03-31 13F THERMO FISHER COM 883556102 8,003 1,215 17.90 3,653 15.53 0.2023
2021-02-16 2020-12-31 13F THERMO FISHER COM 883556102 6,788 692 11.35 3,162 17.46 0.2772
2020-10-20 2020-09-30 13F THERMO FISHER COM 883556102 6,096 1,140 23.00 2,692 49.89 0.2581
2020-07-16 2020-06-30 13F THERMO FISHER COM 883556102 4,956 17 0.34 1,796 28.19 0.1698
2020-04-17 2020-03-31 13F THERMO FISHER COM 883556102 4,939 313 6.77 1,401 -6.79 0.1667
2020-01-16 2019-12-31 13F THERMO FISHER COM 883556102 4,626 43 0.94 1,503 12.58 0.1336
2019-10-17 2019-09-30 13F THERMO FISHER COM 883556102 4,583 202 4.61 1,335 3.73 0.1306
2019-08-01 2019-06-30 13F THERMO FISHER COM 883556102 4,381 479 12.28 1,287 20.51 0.1294
2019-04-17 2019-03-31 13F THERMO FISHER COM 883556102 3,902 -37 -0.94 1,068 21.09 0.1147
2019-01-31 2018-12-31 13F THERMO FISHER COM 883556102 3,939 184 4.90 882 -3.82 0.1127
2018-11-13 2018-09-30 13F THERMO FISHER COM 883556102 3,755 140 3.87 917 22.43 0.1040
2018-08-03 2018-06-30 13F THERMO FISHER COM 883556102 3,615 191 5.58 749 5.94 0.0929
2018-05-01 2018-03-31 13F THERMO FISHER COM 883556102 3,424 356 11.60 707 21.27 0.0923
2018-02-09 2017-12-31 13F THERMO FISHER COM 883556102 3,068 306 11.08 583 11.47 0.0712
2017-10-31 2017-09-30 13F THERMO FISHER COM 883556102 2,762 -88 -3.09 523 5.23 0.0679
2017-08-02 2017-06-30 13F THERMO FISHER COM 883556102 2,850 517 22.16 497 38.83 0.0645
2017-05-05 2017-03-31 13F THERMO FISHER COM 883556102 2,333 662 39.62 358 51.69 0.0485
2017-01-25 2016-12-31 13F THERMO FISHER COM 883556102 1,671 48 2.96 236 -8.53 0.0348
2016-11-04 2016-09-30 13F THERMO FISHER COM 883556102 1,623 -33 -1.99 258 5.31 0.0384
2016-08-02 2016-06-30 13F THERMO FISHER COM 883556102 1,656 64 4.02 245 8.89 0.0401
2016-05-02 2016-03-31 13F THERMO FISHER COM 883556102 1,592 1,592 0.00 225 0.0391
2015-10-28 2015-09-30 13F THERMO FISHER COM 883556102 0 0 0 0.0000
2015-01-27 2014-12-31 13F THERMO FISHER COM 883556102 0 -1,786 -100.00 0 -100.00
2014-11-07 2014-09-30 13F THERMO FISHER COM 883556102 1,786 0 0.00 217 2.84 0.0338
2014-08-04 2014-06-30 13F THERMO FISHER COM 883556102 1,786 -1,000 -35.89 211 -37.01 0.0337
2014-05-09 2014-03-31 13F THERMO FISHER COM 883556102 2,786 200 7.73 335 16.32 0.0587
2014-02-03 2013-12-31 13F THERMO FISHER COM 883556102 2,586 2,586 288 0.0680
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.