Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionNorthern Oak Wealth Management Inc
Latest Disclosed Ownership1,586 shares
Latest Disclosed Value $ 779,587
Northern Oak Wealth Management Inc reports 1.43% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 14, 2026 - Northern Oak Wealth Management Inc filed a 13F-HR form disclosing ownership of 1,586 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $779,587 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 1,609 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -1.43% 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)
2026-05-14 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,586 -23 -1.43 780 -16.42 0.0973
2026-01-29 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,609 -48 -2.90 932 16.06 0.1170
2025-10-31 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,657 4 0.24 804 19.85 0.0986
2025-07-16 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,653 16 0.98 670 -17.69 0.0849
2025-05-09 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,637 6 0.37 815 -4.01 0.1049
2025-01-21 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,631 -55 -3.26 849 -18.62 0.1074
2024-10-30 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,686 -105 -5.86 1,043 5.25 0.1214
2024-07-26 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,791 -18 -1.00 990 -5.80 0.1193
2024-05-01 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,809 164 9.97 1,051 20.39 0.1250
2024-01-11 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,645 -965 -36.97 873 -33.91 0.1043
2023-10-24 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,610 129 5.20 1,321 2.09 0.1643
2023-07-31 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,481 -231 -8.52 1,294 -17.21 0.1542
2023-05-09 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,712 2,712 1,563 0.1872
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -42 -100.00 0 -100.00
2022-08-16 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 42 0 0.00 23 -8.00 0.0032
2022-05-24 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 42 -300 -87.72 25 -89.04 0.0031
2022-02-16 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 342 0 0.00 228 16.92 0.0258
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 342 0 0.00 195 12.72 0.0238
2021-08-17 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 342 0 0.00 173 10.90 0.0209
2021-05-14 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 342 0 0.00 156 -1.89 0.0202
2021-02-16 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 342 0 0.00 159 5.30 0.0212
2020-11-16 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 342 0 0.00 151 21.77 0.0220
2020-08-17 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 342 0 0.00 124 27.84 0.0196
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 342 0 0.00 97 -12.61 0.0184
2020-01-27 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 342 -42 -10.94 111 0.00 0.0170
2019-10-31 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 384 84 28.00 111 26.14 0.0161
2019-07-30 2019-06-30 13F THERMO FISHER SCIENTIFIC I COM 883556102 300 0 0.00 88 7.32 0.0133
2019-04-24 2019-03-31 13F THERMO FISHER SCIENTIFIC I COM 883556102 300 0 0.00 82 22.39 0.0125
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 300 0 0.00 67 -8.22 0.0112
2018-11-15 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 300 0 0.00 73 17.74 0.0107
2018-08-13 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 300 -127 -29.74 62 -29.55 0.0097
2018-05-11 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 427 0 0.00 88 8.64 0.0150
2018-02-16 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 427 427 81 0.0128
2017-08-14 2017-06-30 13F Thermo Fisher Scientific COM 883556102 0 -3,412 -100.00 0 -100.00
2017-05-17 2017-03-31 13F Thermo Fisher Scientific COM 883556102 3,412 0 0.00 524 8.94 0.1006
2017-02-15 2016-12-31 13F Thermo Fisher Scientific COM 883556102 3,412 12 0.35 481 -11.09 0.0971
2016-11-15 2016-09-30 13F Thermo Fisher Scientific COM 883556102 3,400 0 0.00 541 7.77 0.1174
2016-08-15 2016-06-30 13F Thermo Fisher Scientific COM 883556102 3,400 0 0.00 502 4.37 0.1090
2016-05-03 2016-03-31 13F Thermo Fisher Scientific COM 883556102 3,400 0 0.00 481 -0.21 0.1099
2016-02-11 2015-12-31 13F Thermo Fisher Scientific COM 883556102 3,400 -31 -0.90 482 14.76 0.1132
2015-11-10 2015-09-30 13F Thermo Fisher Scientific COM 883556102 3,431 0 0.00 420 -5.62 0.1042
2015-08-12 2015-06-30 13F Thermo Fisher Scientific COM 883556102 3,431 -69 -1.97 445 -5.32 0.1216
2015-05-04 2015-03-31 13F Thermo Fisher Scientific COM 883556102 3,500 3,500 0.00 470 0.1276
2015-02-03 2014-12-31 13F Thermo Fisher Scientific COM 883556102 0 -3,400 -100.00 0 -100.00
2014-11-06 2014-09-30 13F Thermo Fisher Scientific COM 883556102 3,400 0 0.00 414 3.24 0.1142
2014-08-06 2014-06-30 13F Thermo Fisher Scientific COM 883556102 3,400 0 0.00 401 -1.96 0.1085
2014-04-28 2014-03-31 13F Thermo Fisher Scientific COM 883556102 3,400 0 0.00 409 7.92 0.1198
2014-02-11 2013-12-31 13F/A-1 Thermo Fisher Scientific COM 883556102 3,400 0 0.00 379 21.09 0.1113
2014-02-07 2013-12-31 13F Thermo Fisher Scientific COM 883556102 3,400 313
2013-10-30 2013-09-30 13F Thermo Fisher Scientific COM 883556102 3,400 0 0.00 313 8.68 0.1027
2013-08-09 2013-06-30 13F Thermo Fisher Scientific COM 883556102 3,400 3,400 288 0.0988
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.