Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionEnvestnet Asset Management Inc
Latest Disclosed Ownership613,387 shares
Latest Disclosed Value $ 301,497,944
Envestnet Asset Management Inc reports 18.29% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 4, 2026 - Envestnet Asset Management Inc filed a 13F-HR form disclosing ownership of 613,387 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $301,497,944 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 518,558 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 18.29% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-04 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 613,387 94,829 18.29 301,498 0.34 0.0807
2026-02-10 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 518,558 -49,913 -8.78 300,467 8.98 0.0891
2025-11-05 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 568,471 -57,885 -9.24 275,720 8.57 0.0793
2025-08-01 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 626,356 -173,941 -21.73 253,962 -36.23 0.0741
2025-04-29 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 800,297 -13,929 -1.71 398,228 -5.99 0.1284
2025-02-13 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 814,226 -95,471 -10.49 423,585 -24.72 0.1360
2024-11-07 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 909,697 11,181 1.24 562,711 13.25 0.1816
2024-08-08 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 898,516 25,862 2.96 496,879 -2.03 0.1731
2024-05-13 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 872,654 160,901 22.61 507,195 34.25 0.1894
2024-02-13 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 711,753 13,308 1.91 377,792 6.86 0.1562
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 698,445 125,267 21.85 353,532 18.22 0.1618
2023-08-04 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 573,178 1,890 0.33 299,056 -9.18 0.1325
2023-05-11 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 571,288 -42,418 -6.91 329,273 -2.57 0.1582
2023-02-07 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 613,706 22,512 3.81 337,962 12.71 0.1750
2022-11-10 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 591,194 10,812 1.86 299,848 -4.90 0.1712
2022-08-03 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 580,382 4,215 0.73 315,310 -7.35 0.1763
2022-05-04 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 576,167 8,063 1.42 340,313 -10.22 0.1712
2022-02-04 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 568,104 17,592 3.20 379,061 20.52 0.1875
2021-10-07 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 550,512 24,356 4.63 314,524 18.50 0.1727
2021-08-04 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 526,156 3,096 0.59 265,430 11.19 0.1507
2021-05-04 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 523,060 48,397 10.20 238,714 7.97 0.1551
2021-02-02 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 474,663 -5,921 -1.23 221,088 4.19 0.1669
2020-10-09 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 480,584 25,119 5.52 212,187 28.57 0.1879
2020-07-08 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 455,465 67,048 17.26 165,030 49.82 0.1614
2020-04-23 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 388,417 62,711 19.25 110,155 4.10 0.1306
2020-02-11 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 325,706 45,538 16.25 105,812 29.66 0.1116
2019-10-17 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 280,168 22,736 8.83 81,605 7.94 0.0892
2019-08-02 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 257,432 32,130 14.26 75,603 22.59 0.0952
2019-05-10 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 225,302 -1,745 -0.77 61,670 21.37 0.0846
2019-02-12 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 227,047 224,081 7,554.99 50,811 6,918.09 0.0786
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,966 -42,330 -93.45 724 -92.28 0.0013
2018-08-10 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 45,296 485 1.08 9,384 1.38 0.0214
2018-05-09 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 44,811 -16,452 -26.85 9,256 -20.43 0.0262
2018-02-20 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 61,263 2,916 5.00 11,633 5.35 0.0259
2017-11-13 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 58,347 -3,414 -5.53 11,042 2.46 0.0264
2017-08-14 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 61,761 3,209 5.48 10,777 19.85 0.0298
2017-05-09 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 58,552 6,243 11.93 8,992 21.84 0.0288
2017-02-14 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 52,309 1,320 2.59 7,380 -9.00 0.0268
2016-11-14 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 50,989 -20,882 -29.05 8,110 -23.63 0.0314
2016-08-15 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 71,871 3,576 5.24 10,620 9.82 0.0424
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 68,295 -6,964 -9.25 9,670 -9.41 0.0416
2016-02-16 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 75,259 3,138 4.35 10,675 21.05 0.0485
2015-11-13 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 72,121 -2,269 -3.05 8,819 -8.64 0.0438
2015-08-13 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 74,390 -6,254 -7.76 9,653 -10.90 0.0459
2015-05-15 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 80,644 73,584 1,042.27 10,834 1,124.18 0.0560
2015-02-12 2014-12-31 13F Thermo Fisher Scientific COM 883556102 7,060 -3,162 -30.93 885 -28.86 0.0090
2014-11-13 2014-09-30 13F Thermo Fisher Scientific COM 883556102 10,222 -2,624 -20.43 1,244 -17.94 0.0125
2014-08-14 2014-06-30 13F * THERMO FISHER SCIENTIFIC COM 883556102 12,846 -54 -0.42 1,516 -2.26 0.0158
2014-05-12 2014-03-31 13F Thermo Fisher Scientific COM 883556102 12,900 1,197 10.23 1,551 19.03 0.0172
2014-02-12 2013-12-31 13F Thermo Fisher Scientific COM 883556102 11,703 -8,792 -42.90 1,303 -31.02 0.0149
2013-11-12 2013-09-30 13F Thermo Fisher Scientific COM 883556102 20,495 -1,766 -7.93 1,889 0.27 0.0230
2013-08-09 2013-06-30 13F Thermo Fisher Scientific COM 883556102 22,261 22,261 1,884 0.0244
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.