Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionLegal & General Group Plc
Latest Disclosed Ownership2,370,531 shares
Latest Disclosed Value $ 1,165,187,097
Legal & General Group Plc reports 1.99% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 2,370,531 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $1,165,187,097 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 2,418,582 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -1.99% 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)
2026-05-08 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,370,531 -48,051 -1.99 1,165,187 -16.86 0.2695
2026-02-09 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,418,582 -44,406 -1.80 1,401,447 17.32 0.3108
2025-11-13 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,462,988 124,432 5.32 1,194,598 25.99 0.2680
2025-08-12 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,338,556 59,738 2.62 948,191 -16.38 0.2354
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,278,818 16,278 0.72 1,133,940 -3.66 0.3088
2025-02-13 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,262,540 -110,111 -4.64 1,177,041 -19.80 0.3114
2025-02-28 2024-09-30 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 2,372,651 18,579 0.79 1,467,648 12.74 0.3861
2024-11-14 2024-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 2,980,177 -29,938 1,843,445 0.3842
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,980,177 -29,938 1,843,445 0.1940
2025-05-29 2024-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 2,354,072 -130,029 -5.23 1,301,792 -9.83 0.3678
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,010,115 -60,982 1,664,584 0.3726
2025-05-29 2024-03-31 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 2,484,101 -53,485 -2.11 1,443,784 7.19 0.4157
2024-07-01 2024-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 3,071,097 -53,065 1,784,952 0.4167
2024-05-14 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,041,810 -82,352 1,767,930 0.2126
2025-05-29 2023-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 2,537,586 20,203 0.80 1,346,932 5.71 0.4185
2024-02-15 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,124,162 606,779 1,658,281 0.4255
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,517,383 -92,725 -3.55 1,274,227 -6.43 0.4445
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,610,108 50,802 1.98 1,361,819 -7.68 0.4430
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,559,306 32,431 1.28 1,475,107 6.01 0.5276
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,526,875 -72,003 -2.77 1,391,525 5.57 0.5341
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,598,878 -127,345 -4.67 1,318,127 -11.00 0.5150
2022-08-22 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,726,223 -25,749 -0.94 1,481,106 -8.88 0.5241
2022-05-16 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,751,972 174,785 6.78 1,625,459 -5.47 0.4944
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,577,187 -123,129 -4.56 1,719,605 11.46 0.5201
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,700,316 129,279 5.03 1,542,769 18.95 0.5015
2021-08-12 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,571,037 144,560 5.96 1,297,012 17.12 0.4337
2021-05-17 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,426,477 -37,838 -1.54 1,107,401 -3.52 0.4125
2021-02-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,464,315 43,584 1.80 1,147,826 7.39 0.4495
2020-11-13 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,420,731 -105,133 -4.16 1,068,796 16.79 0.4777
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,525,864 -51,210 -1.99 915,141 25.14 0.4422
2020-05-14 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,577,074 81,301 3.26 731,316 -9.80 0.4277
2020-02-13 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,495,773 53,904 2.21 810,804 13.07 0.3863
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,441,869 -12,395 -0.51 717,102 6.75 0.3857
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,454,264 476,994 24.12 671,740 51.81 0.3835
2019-02-15 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,977,270 130,064 7.04 442,473 -1.86 0.3428
2018-11-20 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,847,206 70,872 3.99 450,856 22.54 0.3227
2018-08-10 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,776,334 -77,317 -4.17 367,927 -3.86 0.2839
2018-05-17 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,853,651 -117,232 -5.95 382,689 2.26 0.2920
2018-02-13 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,970,883 2,433 0.12 374,244 0.49 0.2708
2017-11-09 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,968,450 41,041 2.13 372,405 10.74 0.2801
2017-08-03 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,927,409 63,359 3.40 336,280 17.45 0.2717
2017-05-12 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,864,050 69,279 3.86 286,323 13.06 0.2430
2017-02-13 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,794,771 25,400 1.44 253,247 -10.01 0.2362
2016-10-12 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,769,371 -37,585 -2.08 281,419 5.41 0.2851
2016-08-16 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,806,956 101,399 5.95 266,970 10.55 0.2813
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,705,557 16,966 1.00 241,483 0.81 0.2674
2016-02-16 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,688,591 36,270 2.20 239,536 18.56 0.2707
2015-11-13 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,652,321 50,142 3.13 202,037 -2.82 0.2463
2015-07-31 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,602,179 22,497 1.42 207,905 -2.03 0.2442
2015-05-14 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,579,682 -18,114 -1.13 212,218 6.00 0.2537
2015-02-20 2014-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,597,796 -71,844 -4.30 200,198 -1.48 0.2355
2015-02-17 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,597,796 -71,844 200,198 0.2466
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,669,640 -41,986 -2.45 203,196 0.61 0.2437
2014-08-13 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,711,626 69,926 4.26 201,972 2.32 0.2353
2014-05-14 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,641,700 35,932 2.24 197,398 10.40 0.2397
2014-02-07 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,605,768 4,652 0.29 178,802 21.19 0.2164
2013-11-12 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,601,116 -21,218 -1.31 147,542 7.46 0.1943
2013-08-01 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,622,334 1,622,334 137,298 0.1896
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.