Thermo Fisher Scientific Inc.
US ˙ NYSE ˙ US8835561023

SecurityTMO / Thermo Fisher Scientific Inc.
InstitutionWetherby Asset Management Inc
Latest Disclosed Ownership8,210 shares
Latest Disclosed Value $ 3,982,015
Wetherby Asset Management Inc reports 2.01% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On November 14, 2025 - Wetherby Asset Management Inc filed a 13F-HR form disclosing ownership of 8,210 shares of Thermo Fisher Scientific Inc. (US:TMO) valued at $3,982,014 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 8,048 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 2.01% during the quarter. The current value of the position is $3,881,688 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.

Upgrade to unlock premium data and export to Excel .

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)
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,210 162 2.01 3,982 22.03 0.1626
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,048 -229 -2.77 3,263 -24.20 0.1453
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,277 -840 -9.21 4,306 -23.66 0.2064
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,117 -171 -1.84 5,639 9.79 0.2579
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,288 -285 -2.98 5,136 -7.68 0.2421
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,573 64 0.67 5,564 10.22 0.2651
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,509 -354 -3.59 5,047 1.10 0.2629
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,863 -17 -0.17 4,992 -3.14 0.2831
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,880 88 0.90 5,155 -8.67 0.2776
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,792 446 4.77 5,644 9.66 0.3303
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,346 -108 -1.14 5,147 7.32 0.3306
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,454 116 1.24 4,795 -5.48 0.3381
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,338 155 1.69 5,073 -6.47 0.3463
2022-05-16 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,183 151 1.67 5,424 -10.00 0.3108
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,032 203 2.30 6,027 19.49 0.3384
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,829 158 1.82 5,044 15.32 0.3112
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,671 180 2.12 4,374 12.88 0.2669
2021-05-14 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,491 -254 -2.90 3,875 -4.86 0.2953
2021-02-11 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,745 8,384 2,322.44 4,073 2,461.64 0.2762
2020-12-16 2020-09-30 13F/A-01 THERMO FISHER SCIENTIFIC COM 883556102 8,168 -587 3,606 0.3305
2020-12-16 2020-09-30 13F/A-02 THERMO FISHER SCIENTIFIC COM 883556102 361 -8,394 -95.88 159 -94.99 0.4778
2020-11-13 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,896 141 3,928 249,855.2900
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,755 30 0.34 3,172 28.16 0.3007
2020-05-06 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,725 -23 -0.26 2,475 -12.91 0.2778
2020-01-28 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,748 -303 -3.35 2,842 7.77 0.2799
2019-10-31 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,051 251 2.85 2,637 2.05 0.2753
2019-07-25 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,800 126 1.45 2,584 8.85 0.2829
2019-07-25 2019-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 8,674 -31 -0.36 2,374 21.81 0.2956
2019-05-09 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,674 -31 2,374
2019-01-30 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,705 112 1.30 1,949 -7.10 0.2757
2018-11-07 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,593 -22 -0.26 2,098 17.60 0.2591
2018-07-24 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,615 143 1.69 1,784 2.00 0.2415
2018-05-04 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,472 1,021 13.70 1,749 23.69 0.2414
2018-02-09 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,451 1,073 16.82 1,414 17.25 0.1962
2017-11-13 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,378 209 3.39 1,206 12.08 0.1794
2017-08-01 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,169 711 13.03 1,076 28.40 0.1831
2017-04-27 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,458 94 1.75 838 10.70 0.1507
2017-02-08 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,364 -393 -6.83 757 -17.36 0.1483
2016-11-14 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,757 571 11.01 916 19.58 0.1853
2016-08-10 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,186 42 0.82 766 5.22 0.1698
2016-05-10 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,144 74 1.46 728 1.25 0.1716
2016-02-08 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,070 -14 -0.28 719 15.78 0.1724
2015-11-12 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,084 199 4.07 621 -1.90 0.1591
2015-08-12 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,885 164 3.47 633 -0.16 0.1522
2015-05-08 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,721 428 9.97 634 17.84 0.1543
2015-02-12 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,293 158 3.82 538 6.96 0.1353
2014-11-03 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,135 19 0.46 503 3.50 0.1402
2014-08-01 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,116 -183 -4.26 486 -6.00 0.1372
2014-05-05 2014-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 4,299 -56 -1.29 517 6.60 0.1482
2014-04-30 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,299 517
2014-01-29 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,355 80 1.87 485 23.10 0.1383
2013-10-29 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,275 222 5.48 394 14.87 0.1229
2013-07-24 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,053 4,053 343 0.1195
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.