Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionUtah Retirement Systems
Latest Disclosed Ownership61,398 shares
Latest Disclosed Value $ 30,178,959
Utah Retirement Systems reports 1.60% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 15, 2026 - Utah Retirement Systems filed a 13F-HR form disclosing ownership of 61,398 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $30,178,959 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 62,394 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -1.60% 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)
2026-05-15 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 61,398 -996 -1.60 30,179 -16.53 0.3085
2026-02-17 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 62,394 -13 -0.02 36,154 19.45 0.3440
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 62,407 -321 -0.51 30,269 19.01 0.2940
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 62,728 -539 -0.85 25,434 -19.21 0.2656
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 63,267 -75 -0.12 31,482 -4.46 0.3632
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 63,342 100 0.16 32,952 -15.76 0.3630
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 63,242 323 0.51 39,120 12.43 0.4414
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 62,919 -4,074 -6.08 34,794 -10.64 0.4132
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 66,993 50 0.07 38,937 9.58 0.4553
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 66,943 446 0.67 35,533 5.57 0.4525
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 66,497 293 0.44 33,659 -2.56 0.4811
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 66,204 -3,500 -5.02 34,542 -14.02 0.4790
2023-05-16 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 69,704 209 0.30 40,175 4.98 0.5809
2023-02-15 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 69,495 -657 -0.94 38,270 7.56 0.6069
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 70,152 346 0.50 35,580 -6.18 0.5933
2022-08-16 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 69,806 -292 -0.42 37,924 -8.40 0.6072
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 70,098 -1,167 -1.64 41,404 -12.93 0.5510
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 71,265 143 0.20 47,551 17.02 0.5876
2021-11-16 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 71,122 -3,800 -5.07 40,635 7.51 0.5495
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 74,922 -933 -1.23 37,796 9.18 0.4865
2021-05-17 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 75,855 -3,351 -4.23 34,619 -6.16 0.4825
2021-02-16 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 79,206 3,341 4.40 36,892 10.14 0.5236
2020-11-16 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 75,865 500 0.66 33,496 22.66 0.5560
2020-08-13 2020-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 75,365 -800 -1.05 27,308 26.42 0.5012
2020-08-13 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 75,365 -800 27,308 501,212.2847
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 76,165 0 0.00 21,601 -12.70 0.4673
2020-02-12 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 76,165 400 0.53 24,743 12.12 0.4350
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 75,765 200 0.26 22,068 -0.56 0.4199
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 75,565 -82 -0.11 22,192 7.18 0.4250
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 75,647 859 1.15 20,706 23.71 0.4104
2019-02-08 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 74,788 100 0.13 16,737 -8.19 0.3784
2018-11-13 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 74,688 500 0.67 18,230 18.62 0.3531
2018-08-10 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 74,188 -200 -0.27 15,368 0.07 0.3181
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 74,388 200 0.27 15,358 9.02 0.3267
2018-02-14 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 74,188 1,000 1.37 14,087 1.73 0.2961
2017-11-13 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 73,188 1,700 2.38 13,847 11.02 0.3114
2017-08-08 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 71,488 -446 -0.62 12,473 12.88 0.2907
2017-05-11 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 71,934 0 0.00 11,050 8.87 0.2643
2017-02-10 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 71,934 0 0.00 10,150 -11.29 0.2553
2016-11-07 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 71,934 0 0.00 11,442 7.65 0.2961
2016-08-03 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 71,934 300 0.42 10,629 4.79 0.2833
2016-05-10 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 71,634 100 0.14 10,143 -0.04 0.2751
2016-02-11 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 71,534 200 0.28 10,147 16.32 0.2751
2015-11-03 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 71,334 400 0.56 8,723 -5.23 0.2498
2015-08-11 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 70,934 -400 -0.56 9,204 -3.95 0.2446
2015-05-14 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 71,334 2,200 3.18 9,583 10.65 0.2518
2015-02-11 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 69,134 0 0.00 8,661 2.94 0.2381
2014-11-06 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 69,134 -100 -0.14 8,414 3.00 0.2413
2014-08-08 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 69,234 -1,000 -1.42 8,169 -3.27 0.2340
2014-05-08 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 70,234 6,200 9.68 8,445 18.44 0.2436
2014-02-05 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 64,034 0 0.00 7,130 20.83 0.2109
2013-11-06 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 64,034 -600 -0.93 5,901 7.88 0.1909
2013-08-02 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 64,634 64,634 5,470 0.1848
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.