Thermo Fisher Scientific Inc.
US ˙ NYSE ˙ US8835561023

SecurityTMO / Thermo Fisher Scientific Inc.
InstitutionBRYN MAWR TRUST Co
Latest Disclosed Ownership41,860 shares
Latest Disclosed Value $ 20,575,445
BRYN MAWR TRUST Co reports 1.66% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On April 30, 2026 - BRYN MAWR TRUST Co filed a 13F-HR form disclosing ownership of 41,860 shares of Thermo Fisher Scientific Inc. (US:TMO) valued at $20,575,446 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 42,568 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -1.66% during the quarter. The current value of the position is $19,791,408 USD.

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)
2026-04-30 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 41,860 -708 -1.66 20,575 -16.59 0.3655
2026-02-12 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 42,568 -1,062 -2.43 24,666 16.56
2025-11-20 2025-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 43,630 -3,435 -7.30 21,161 10.90 0.5101
2025-10-28 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 46,708 -357 22,654 0.2510
2025-07-28 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 47,065 -1,942 -3.96 19,083 -21.75 0.3395
2025-05-08 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 49,007 -1,280 -2.55 24,386 -6.79 0.4557
2025-01-28 2024-12-31 13F Thermo Fisher Scientific COM 883556102 50,287 -1,767 -3.39 26,161 -18.76 0.4709
2024-11-25 2024-09-30 13F Thermo Fisher Scientific COM 883556102 52,054 4,553 9.59 32,199 22.58 0.5780
2024-08-08 2024-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 47,501 -459 -0.96 26,268 -5.76 1.0073
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 47,960 -759 -1.56 27,875 13.03 1.0695
2023-11-15 2023-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 48,719 -393 -0.80 24,660 98,540.00 1.0853
2023-08-11 2023-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 49,112 -1,056 -2.10 26 -10.71 1.0679
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 50,168 -2,202 -4.20 29 0.00 1.2778
2023-02-13 2022-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 52,370 -7,770 -12.92 29 -99.91 1.3099
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 60,140 -804 -1.32 30,502 -7.88 1.4895
2022-08-11 2022-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 60,944 -2,361 -3.73 33,110 -11.45 1.5233
2022-05-16 2022-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 63,305 -2,819 -4.26 37,391 -15.25 1.4600
2022-02-10 2021-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 66,124 -1,135 -1.69 44,121 14.82 1.5866
2021-10-26 2021-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 67,259 -2,004 -2.89 38,427 9.98 1.4840
2021-07-29 2021-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 69,263 -94 -0.14 34,941 10.39 1.3330
2021-04-23 2021-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 69,357 -664 -0.95 31,653 -2.95 1.2642
2021-02-11 2020-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 70,021 -16,285 -18.87 32,615 -14.41 1.3705
2020-11-12 2020-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 86,306 -3,581 -3.98 38,106 17.00 1.7662
2020-08-13 2020-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 89,887 -12,449 -12.16 32,569 12.22 1.6013
2020-05-08 2020-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 102,336 -561 -0.55 29,022 -13.18 1.7061
2020-02-11 2019-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 102,897 1,013 0.99 33,428 12.65 1.6955
2019-10-24 2019-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 101,884 -153 -0.15 29,675 -0.97 1.6194
2019-08-15 2019-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 102,037 -14,543 -12.47 29,966 -6.09 1.6215
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 116,580 10 0.01 31,910 22.32 1.7377
2019-08-28 2018-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 116,570 -746 -0.64 26,088 -8.89 1.5835
2019-02-15 2018-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 116,570 -746 26,088
2019-08-28 2018-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 117,316 -497 -0.42 28,635 17.34 1.5075
2018-11-15 2018-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 117,316 -497 28,634 1.5114
2019-08-27 2018-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 117,813 -2,057 -1.72 24,404 -1.39 1.3611
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 117,813 -2,057 24,404
2019-08-27 2018-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 119,870 -2,193 -1.80 24,749 6.78 1.4157
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 119,870 -2,193 24,749
2019-08-27 2017-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 122,063 671 0.55 23,177 0.91 1.2652
2018-02-15 2017-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 122,063 671 23,178 1.2689
2019-08-27 2017-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 121,392 3,318 2.81 22,967 11.49 1.3145
2017-11-14 2017-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 121,817 3,743 23,048 1.3089
2017-08-11 2017-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 118,074 -1,712 -1.43 20,600 11.97 1.2253
2017-05-12 2017-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 119,786 -153 -0.13 18,398 8.71 1.1133
2017-02-03 2016-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 119,939 -982 -0.81 16,924 -12.01 1.0611
2016-11-10 2016-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 120,921 -906 -0.74 19,234 6.85 1.2113
2016-08-10 2016-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 121,827 477 0.39 18,001 4.77 1.1437
2016-05-03 2016-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 121,350 170 0.14 17,182 -0.04 1.1032
2016-02-12 2015-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 121,180 1,490 1.24 17,189 17.44 1.0765
2015-11-09 2015-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 119,690 35,177 41.62 14,636 33.47 0.9371
2015-08-25 2015-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 84,513 32 0.04 10,966 -3.37 0.6371
2015-05-12 2015-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 84,481 664 0.79 11,348 8.07 0.6455
2015-02-17 2014-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 83,817 33,240 65.72 10,501 70.58 0.5893
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 50,577 -379 -0.74 6,156 2.40 0.3491
2014-08-07 2014-06-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 50,956 1,413 2.85 6,012 0.91 0.3315
2014-05-13 2014-03-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 49,543 -1,171 -2.31 5,958 5.51 0.3334
2014-02-14 2013-12-31 13F THERMO FISHER SCIENTIFIC COMMON 883556102 50,714 -1,772 -3.38 5,647 16.75 0.3178
2013-11-06 2013-09-30 13F THERMO FISHER COMMON 883556102 52,486 62 0.12 4,837 9.02 0.2981
2013-08-09 2013-06-30 13F THERMO FISHER SCIENTIFIC COMMON 883556102 52,424 -1,373 -2.55 4,437 7.83 0.2869
2013-05-20 2013-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 53,797 53,797 4,115 0.2655
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.