Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionJanney Montgomery Scott LLC
Latest Disclosed Ownership116,856 shares
Latest Disclosed Value $ 57,439
Janney Montgomery Scott LLC reports 13.71% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On April 22, 2026 - Janney Montgomery Scott LLC filed a 13F-HR form disclosing ownership of 116,856 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $57,439 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 102,770 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 13.71% 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)
2026-04-22 2026-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 116,856 14,086 13.71 57 -3.39 0.1422
2026-02-11 2025-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 102,770 -255 -0.25 60 20.41 0.1366
2025-10-27 2025-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 103,025 -395 -0.38 50 19.51 0.1184
2025-07-17 2025-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 103,420 -19,013 -15.53 42 -31.67 0.1096
2025-04-17 2025-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 122,433 -9,505 -7.20 61 -11.76 0.1727
2025-01-17 2024-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 131,938 -5,101 -3.72 69 -19.05 0.1902
2024-10-29 2024-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 137,039 -3,811 -2.71 85 9.09 0.2366
2024-07-25 2024-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 140,850 -1,989 -1.39 78 -7.23 0.2375
2024-05-01 2024-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 142,839 -6,339 -4.25 83 5.06 0.2469
2024-02-08 2023-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 149,178 -4,351 -2.83 79 2.60 0.2569
2023-11-08 2023-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 153,529 -43,593 -22.11 78 -24.51 0.2897
2023-07-26 2023-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 197,122 3,031 1.56 103 -8.11 0.3588
2023-04-28 2023-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 194,091 -12,680 -6.13 112 -1.77 0.4567
2023-02-01 2022-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 206,771 2,104 1.03 114 -99.89 0.4435
2022-10-25 2022-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 204,667 7,836 3.98 103,806 -1.88 0.4448
2022-08-03 2022-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 196,831 15,515 8.56 105,790 -1.22 0.4778
2022-05-04 2022-03-31 13F SMITH NEPHEW PLC ADR Common Stock 883556102 181,316 470 0.26 107,095 -11.25 0.4580
2022-01-27 2021-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 180,846 3,807 2.15 120,668 19.30 0.4681
2021-10-29 2021-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 177,039 4,768 2.77 101,148 16.39 0.4325
2021-07-26 2021-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 172,271 -720 -0.42 86,906 10.08 0.3832
2021-04-27 2021-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 172,991 2,788 1.64 78,950 -0.41 0.3836
2021-01-25 2020-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 170,203 1,836 1.09 79,277 6.64 0.3830
2020-11-06 2020-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 168,367 3,628 2.20 74,338 24.54 0.4239
2020-07-23 2020-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 164,739 2,633 1.62 59,692 29.84 0.3772
2020-04-30 2020-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 162,106 4,101 2.60 45,974 -10.44 0.3637
2020-01-21 2019-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 158,005 7,308 4.85 51,331 16.94 0.3370
2019-10-29 2019-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 150,697 11,457 8.23 43,894 7.34 0.3194
2019-07-29 2019-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 139,240 3,906 2.89 40,892 10.39 0.3140
2019-04-30 2019-03-31 13F/A-1 THERMO FISHER SCIENTIFIC Common Stock 883556102 135,334 11,350 9.15 37,044 33.51 0.3047
2019-04-30 2019-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 123,984 0 27,746
2019-02-01 2018-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 123,984 9,862 8.64 27,746 -0.39 0.2674
2018-11-05 2018-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 114,122 6,493 6.03 27,855 24.94 0.2399
2018-07-24 2018-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 107,629 7,796 7.81 22,294 8.16 0.2144
2018-04-19 2018-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 99,833 31,384 45.85 20,612 58.59 0.2074
2018-02-14 2017-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 68,449 5,573 8.86 12,997 9.26 0.1350
2017-11-15 2017-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 62,876 4,767 8.20 11,896 17.34 0.1356
2017-07-27 2017-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 58,109 -3,468 -5.63 10,138 7.19 0.1266
2017-04-26 2017-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 61,577 47 0.08 9,458 8.94 0.1259
2017-02-13 2016-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 61,530 4,401 7.70 8,682 -4.46 0.1309
2016-11-14 2016-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 57,129 -57,453 -50.14 9,087 -46.33 0.1600
2016-08-11 2016-06-30 13F/A-1 THERMO FISHER SCIENTIFIC Common Stock 883556102 114,582 63,066 122.42 16,930 132.11 0.3452
2016-08-05 2016-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 109,220 15,831
2016-05-10 2016-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 51,516 -413 -0.80 7,294 -0.98 0.1910
2016-02-19 2015-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 51,929 -1,118 -2.11 7,366 13.55 0.1902
2015-11-16 2015-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 53,047 1,728 3.37 6,487 -2.58 0.1831
2015-08-04 2015-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 51,319 2,116 4.30 6,659 0.74 0.1394
2015-05-12 2015-03-31 13F/A-1 THERMO FISHER SCIENTIFIC Common Stock 883556102 49,203 6,774 15.97 6,610 24.37 0.1231
2015-04-30 2015-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 49,203 6,610
2015-02-10 2014-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 42,429 -4,272 -9.15 5,316 -6.48 0.1064
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 46,701 17,664 60.83 5,683 65.88 0.1183
2014-08-13 2014-06-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 29,037 -2,899 -9.08 3,426 -10.78 0.0747
2014-05-14 2014-03-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 31,936 4,986 18.50 3,840 28.00 0.0929
2014-02-19 2013-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 26,950 20,435 313.66 3,001 -99.50 0.0793
2013-11-14 2013-09-30 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 6,515 6,515 600,357 0.0180
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.