Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionNomura Asset Management Co Ltd
Latest Disclosed Ownership319,972 shares
Latest Disclosed Value $ 157,275,837
Nomura Asset Management Co Ltd reports 7.28% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 11, 2026 - Nomura Asset Management Co Ltd filed a 13F-HR form disclosing ownership of 319,972 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $157,275,837 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 298,253 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 7.28% 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)
2026-05-11 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 319,972 21,719 7.28 157,276 -9.00 0.2539
2026-02-10 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 298,253 -19,726 -6.20 172,823 12.06 0.4375
2025-11-12 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 317,979 -906 -0.28 154,226 19.28 0.4025
2025-08-11 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 318,885 -32,650 -9.29 129,295 -26.08 0.3545
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 351,535 37,466 11.93 174,924 7.06 0.5353
2025-02-12 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 314,069 21,403 7.31 163,388 -9.75 0.4916
2024-11-15 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 292,666 10,462 3.71 181,034 16.67 0.5581
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 282,204 -1,006 -0.36 155,168 -5.73 0.5288
2024-05-13 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 283,210 -13,059 -4.41 164,604 4.67 0.5975
2024-02-09 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 296,269 -19,001 -6.03 157,257 -1.46 0.6498
2023-11-03 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 315,270 -2,827 -0.89 159,580 -3.85 0.7479
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 318,097 33,257 11.68 165,967 1.09 0.7645
2025-01-10 2023-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 284,840 -19,383 -6.37 164,173 -2.00 0.8626
2023-05-11 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 284,840 -19,383 164,173 0.8626
2025-01-10 2022-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 304,223 16,055 5.57 167,533 14.63 0.9732
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 304,223 16,055 167,533 0.9732
2025-01-10 2022-09-30 13F/A-3 THERMO FISHER SCIENTIFIC COM 883556102 288,168 29,371 11.35 146,156 3.95 0.9305
2022-11-14 2022-09-30 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 288,168 29,371 146,156 0.9305
2022-11-10 2022-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 288,168 29,371 146,156 0.9305
2022-11-10 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 288,168 29,371 146,156 0.5882
2025-01-10 2022-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 258,797 7,392 2.94 140,599 -5.32 0.8781
2022-08-12 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 258,797 7,392 140,600 0.8673
2025-01-10 2022-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 251,405 30,256 13.68 148,492 0.63 0.8079
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 251,405 30,256 148,491 0.8079
2025-01-10 2021-12-31 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 221,149 76,699 53.10 147,559 78.80 0.7454
2022-02-01 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 221,149 76,699 147,559 0.7454
2025-01-10 2021-09-30 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 144,450 23,916 19.84 82,529 35.73 0.4657
2021-11-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 144,450 23,916 82,529 0.4658
2025-01-10 2021-06-30 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 120,534 -9,635 -7.40 60,806 2.35 0.3521
2021-08-06 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 120,534 -9,635 60,806 0.3521
2025-01-10 2021-03-31 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 130,169 -85,062 -39.52 59,407 -40.74 0.3786
2021-05-14 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 130,169 -85,062 59,406 0.3786
2025-01-10 2020-12-31 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 215,231 6,884 3.30 100,250 8.98 0.6744
2021-02-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 215,231 6,884 100,251 0.6745
2020-11-12 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 208,347 39,217 23.19 91,989 50.11 0.7062
2020-08-13 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 169,130 97,843 137.25 61,282 203.12 0.5185
2020-05-14 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 71,287 4,687 7.04 20,217 -6.56 0.2089
2020-02-13 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 66,600 -1,102 -1.63 21,636 9.72 0.1939
2019-11-13 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 67,702 4,088 6.43 19,720 5.56 0.1883
2019-08-13 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 63,614 -12,501 -16.42 18,682 -10.33 0.1846
2019-05-10 2019-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 76,115 -1,331 -1.72 20,835 20.21 0.2048
2019-05-10 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 76,115 -1,331 20,835
2019-02-12 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 77,446 4,196 5.73 17,332 -3.06 0.1937
2018-11-07 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 73,250 1,682 2.35 17,879 20.60 0.1735
2018-08-03 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 71,568 5,933 9.04 14,825 9.40 0.1539
2018-05-14 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 65,635 2,570 4.08 13,551 13.17 0.1480
2018-02-14 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 63,065 12,116 23.78 11,974 24.21 0.1386
2017-11-13 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 50,949 2,605 5.39 9,640 14.30 0.1245
2017-08-14 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 48,344 595 1.25 8,434 15.00 0.1135
2017-06-28 2017-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 47,749 -3,798 -7.37 7,334 0.81 0.1033
2017-05-12 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 47,749 7,334
2017-02-14 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 51,547 4,115 8.68 7,275 -3.58 0.1311
2016-11-10 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 47,432 770 1.65 7,545 9.43 0.1354
2016-08-12 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 46,662 530 1.15 6,895 5.56 0.1290
2016-05-13 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 46,132 360 0.79 6,532 0.60 0.1244
2016-02-12 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 45,772 330 0.73 6,493 16.84 0.1256
2015-11-13 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 45,442 1,281 2.90 5,557 -3.04 0.1113
2015-08-14 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 44,161 -820 -1.82 5,731 -5.16 0.1061
2015-05-13 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 44,981 670 1.51 6,043 7.78 0.1077
2015-02-13 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 44,311 -70 -0.16 5,607 3.81 0.0980
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 44,381 -37,312 -45.67 5,401 -44.01 0.0955
2014-08-14 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 81,693 28,827 54.53 9,647 51.87 0.1783
2014-05-14 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 52,866 -31,597 -37.41 6,352 -32.46 0.1162
2014-02-14 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 84,463 -440 -0.52 9,405 20.21 0.1690
2013-11-13 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 84,903 -8,350 -8.95 7,824 -0.86 0.1481
2013-08-13 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 93,253 93,253 7,892 0.1564
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.