Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership1,670,400 shares
Latest Disclosed Value $ 821,090,809
Ameriprise Financial Inc reports 0.86% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 1,670,400 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $821,090,809 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,684,945 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -0.86% 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 1,670,400 -14,545 -0.86 821,091 -15.92 0.0352
2026-02-17 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,684,945 111,947 7.12 976,580 28.00 0.2207
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,572,998 -115,887 -6.86 762,924 11.41 0.1752
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,688,885 -387,749 -18.67 684,799 -33.73 0.1688
2025-05-14 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,076,634 -154,396 -6.92 1,033,415 -10.96 0.2790
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,231,030 -249,621 -10.06 1,160,661 -24.36 0.2978
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,480,651 -606 -0.02 1,534,495 11.83 0.3935
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,481,257 604,895 32.24 1,372,157 25.81 0.3713
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,876,362 493,302 35.67 1,090,618 48.56 0.3002
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,383,060 -96,553 -6.53 734,122 -1.98 0.2198
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,479,613 -110,418 -6.94 748,964 -9.72 0.2459
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,590,031 -35,771 -2.20 829,594 -11.48 0.2601
2023-05-22 2023-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,625,802 -40,104 -2.41 937,135 2.15 0.3073
2023-05-15 2023-03-31 13F REALREAL COM 883556102 1,625,802 -40,104 937,135 0.0567
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,665,906 70,251 4.40 917,434 12.32 0.3145
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,595,655 -329,549 -17.12 816,827 -21.29 0.3021
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,925,204 448,143 30.34 1,037,786 22.60 0.3620
2022-05-16 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,477,061 -24,603 -1.64 846,454 -12.44 0.2498
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,501,664 534,801 55.31 966,740 75.02 0.2674
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 966,863 -458,589 -32.17 552,370 -23.19 0.1765
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,425,452 -15,768 -1.09 719,135 9.23 0.2224
2021-05-17 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,441,220 -138,539 -8.77 658,389 -10.50 0.2188
2021-02-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,579,759 446,694 39.42 735,638 47.11 0.2609
2020-11-16 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,133,065 -11,544 -1.01 500,073 20.63 0.2034
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,144,609 -98,441 -7.92 414,538 17.67 0.1776
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,243,050 20,878 1.71 352,276 -11.24 0.1849
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,222,172 23,554 1.97 396,888 13.67 0.1650
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,198,618 -292,978 -19.64 349,155 -20.22 0.1565
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,491,596 17,363 1.18 437,651 8.47 0.1960
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,474,233 -37,085 -2.45 403,481 19.30 0.1856
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,511,318 -60,012 -3.82 338,211 -31.54 0.1691
2018-11-14 2018-09-30 13F THERMO FISHER SCIENT COM 883556102 1,571,330 353,964 29.08 494,027 95.91 0.1727
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,217,366 -32,431 -2.59 252,168 -2.26 0.1116
2018-05-14 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,249,797 -225,041 -15.26 257,998 -7.89 0.1167
2018-02-12 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,474,838 -1,070,524 -42.06 280,101 -41.83 0.1278
2017-11-07 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,545,362 90,393 3.68 481,554 12.42 0.2292
2017-08-10 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,454,969 -258,185 -9.52 428,369 2.80 0.2144
2017-05-05 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,713,154 -61,436 -2.21 416,714 6.40 0.2156
2017-02-03 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,774,590 170,393 6.54 391,666 -5.44 0.2139
2016-11-08 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,604,197 -103,471 -3.82 414,190 3.53 0.2320
2016-08-08 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,707,668 -464,338 -14.64 400,070 -10.91 0.2345
2016-05-12 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,172,006 229,116 7.79 449,064 7.58 0.2680
2016-02-11 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,942,890 267,564 10.00 417,441 27.66 0.2450
2015-11-12 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,675,326 731,968 37.67 327,004 29.68 0.2025
2015-08-13 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,943,358 479,583 32.76 252,157 28.24 0.1435
2015-05-14 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,463,775 132,248 9.93 196,624 17.85 0.1129
2015-02-13 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,331,527 -1,039,805 -43.85 166,848 -42.19 0.0972
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,371,332 -172,874 -6.79 288,600 -3.87 0.1736
2014-08-13 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,544,206 -1,006,526 -28.35 300,228 -29.68 0.1771
2014-05-14 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,550,732 -145,987 -3.95 426,962 3.73 0.2564
2014-02-14 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,696,719 686,095 22.79 411,619 48.35 0.2493
2013-11-14 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,010,624 -90,416 -2.92 277,471 5.73 0.1820
2013-08-14 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,101,040 3,101,040 262,434 0.1817
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.