써모 피셔 사이언티픽(주)
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionMirova US LLC
Latest Disclosed Ownership615,090 shares
Latest Disclosed Value $ 302,335,188
Mirova US LLC reports 4.08% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 11, 2026 - Mirova US LLC filed a 13F-HR form disclosing ownership of 615,090 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $302,335,188 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 641,259 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -4.08% 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 615,090 -26,169 -4.08 302,335 -18.63 3.4309
2026-02-11 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 641,259 -19,530 -2.96 371,578 15.94 3.7306
2025-10-20 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 660,789 -26,277 -3.82 320,496 15.05 3.2365
2025-07-23 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 687,066 -101,873 -12.91 278,578 -29.04 2.8835
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 788,939 26,414 3.46 392,576 -1.04 4.6625
2025-02-10 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 762,525 -23,283 -2.96 396,688 -18.39 4.7579
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 785,808 4,800 0.61 486,077 12.54 5.5763
2024-07-31 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 781,008 16,189 2.12 431,897 -2.84 5.3764
2024-05-09 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 764,819 -13,615 -1.75 444,520 7.58 5.9759
2024-01-30 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 778,434 -5,018 -0.64 413,185 4.19 6.2256
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 783,452 29,297 3.88 396,560 0.78 6.7231
2023-07-24 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 754,155 16,299 2.21 393,480 -7.48 6.5499
2023-05-02 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 737,856 9,747 1.34 425,278 6.06 7.7160
2023-02-09 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 728,109 16,405 2.31 400,962 11.08 8.0550
2022-11-03 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 711,704 -5,932 -0.83 360,969 -7.41 8.4314
2022-07-28 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 717,636 42,260 6.26 389,877 -2.26 8.3955
2022-05-06 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 675,376 50,729 8.12 398,910 -4.29 7.6610
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 624,647 65,960 11.81 416,789 30.58 7.8300
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 558,687 60,738 12.20 319,194 27.07 7.4506
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 497,949 56,253 12.74 251,200 24.61 6.7380
2021-05-17 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 441,696 68,002 18.20 201,581 15.81 7.0164
2021-02-16 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 373,694 3,168 0.86 174,059 6.40 7.5866
2020-11-16 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 370,526 98,307 36.11 163,594 65.86 9.3552
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 272,219 23,265 9.35 98,636 39.71 8.5981
2020-05-13 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 248,954 45,181 22.17 70,603 6.65 9.3533
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC Common Stock 883556102 203,773 203,773 66,198 8.9656
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.