Thermo Fisher Scientific Inc.
CL ˙ SNSE ˙ US8835561023
SecurityCL:TMOCL / Thermo Fisher Scientific Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership10,863,528 shares
Latest Disclosed Value $ 5,339,751,925
Morgan Stanley reports 8.67% decrease in ownership of TMOCL / Thermo Fisher Scientific Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 10,863,528 shares of Thermo Fisher Scientific Inc. (CL:TMOCL) valued at $5,339,751,925 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 11,894,277 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -8.67% 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 10,863,528 -1,030,749 -8.67 5,339,752 -22.52 0.3217
2026-05-27 2025-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 11,894,277 -827,635 -6.51 6,892,141 11.70 0.4115
2026-02-13 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,894,277 -827,635 6,892,141 0.4115
2026-05-27 2025-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 12,721,912 -155,683 -1.21 6,170,384 18.18 0.3736
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,721,912 -155,683 6,170,384 0.3736
2025-08-15 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,877,595 1,282,165 11.06 5,221,352 -9.51 0.3401
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,595,430 105,141 0.92 5,769,887 -3.47 0.4125
2025-05-15 2024-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 11,490,289 348,741 3.13 5,977,595 -13.27 0.4188
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,490,289 348,741 5,977,595 0.4188
2025-05-14 2024-09-30 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 11,141,548 -955,965 -7.90 6,891,830 3.02 0.4997
2025-02-14 2024-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 11,141,548 -955,965 6,891,830 0.4997
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 11,141,548 -955,965 6,891,830 0.4996
2025-05-14 2024-06-30 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 12,097,513 344,376 2.93 6,689,927 -2.07 0.5177
2024-10-17 2024-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 12,097,513 344,376 6,689,927 0.5176
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,097,513 344,376 6,689,927 0.5177
2024-10-17 2024-03-31 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 11,753,137 -799,607 -6.37 6,831,043 2.52 0.5481
2024-08-16 2024-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 11,753,137 -799,607 6,831,043 0.5482
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,753,137 -799,607 6,831,043 0.5482
2024-08-16 2023-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 12,552,744 134,315 1.08 6,662,872 6.00 0.5872
2024-02-13 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 12,552,744 134,315 6,662,872 0.5872
2023-11-15 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,418,429 50,736 0.41 6,285,838 -2.59 0.6392
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,367,693 779,148 6.72 6,452,846 -3.39 0.6360
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,588,545 -141,518 -1.21 6,679,291 3.40 0.7162
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,730,063 1,764,312 17.70 6,459,629 27.80 0.7337
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,965,751 21,926 0.22 5,054,531 -6.44 0.6889
2022-10-27 2022-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 9,943,825 1,627,484 19.57 5,402,282 9.98 0.7012
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,943,825 1,627,484 5,402,282 0.1414
2022-10-27 2022-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 8,316,341 33,984 0.41 4,912,047 -11.12 0.6625
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,316,341 33,984 4,912,047 0.6625
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,282,357 172,299 2.12 5,526,320 19.27 0.6824
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,110,058 -195,995 -2.36 4,633,520 10.58 0.6241
2021-08-23 2021-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 8,306,053 12,811 0.15 4,190,157 10.71 0.5527
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,306,053 12,811 4,190,157 0.1149
2021-05-17 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,293,242 566,814 7.34 3,784,871 5.17 0.5560
2021-02-16 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,726,428 328,820 4.44 3,598,815 10.18 0.5558
2020-11-13 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,397,608 -265,702 -3.47 3,266,190 17.63 0.6317
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,663,310 107,355 1.42 2,776,723 29.58 0.6146
2020-05-26 2020-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 7,555,955 -365,463 -4.61 2,142,869 -16.73 0.5823
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,555,955 -365,463 2,142,869 164,617.0104
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,921,418 1,294,305 19.53 2,573,432 33.32 0.5985
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,627,113 2,476,490 59.67 1,930,278 58.36 0.5110
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,150,623 -38,534 -0.92 1,218,954 6.30 0.3244
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,189,157 -325,504 -7.21 1,146,658 13.49 0.3246
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,514,661 27,846 0.62 1,010,337 -7.74 0.3023
2019-04-23 2018-09-30 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 4,486,815 104,302 2.38 1,095,142 20.64 0.2741
2018-11-20 2018-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 4,486,815 0 1,095,142 0.2741
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,486,815 104,302 1,095,142
2019-04-23 2018-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 4,382,513 -65,884 -1.48 907,794 -1.16 0.2453
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,382,513 -65,884 907,794
2019-04-23 2018-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 4,448,397 4,313 0.10 918,414 8.84 0.2549
2018-05-14 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,448,397 4,313 918,414
2019-04-23 2017-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 4,444,084 188,728 4.44 843,842 4.81 0.2310
2018-02-14 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,444,084 188,728 843,842
2017-11-14 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,255,356 -280,124 -6.18 805,114 1.75 0.2412
2017-08-11 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,535,480 -129,402 -2.77 791,304 10.44 0.2391
2017-05-22 2017-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 4,664,882 327,826 7.56 716,526 17.09 0.2202
2017-05-12 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,664,882 716,526
2017-02-22 2016-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 4,337,056 -342,938 -7.33 611,959 -17.79 0.2003
2017-02-13 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,337,056 611,959
2016-11-10 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,679,994 -316,323 -6.33 744,399 0.83 0.2542
2016-08-12 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,996,317 -484,082 -8.83 738,255 -4.86 0.2667
2016-05-12 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,480,399 -549,781 -9.12 775,970 -9.28 0.2986
2016-02-09 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,030,180 286,391 4.99 855,382 21.79 0.3096
2016-02-08 2015-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 5,743,789 354,876 6.59 702,352 0.44 0.2596
2015-11-09 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,743,789 702,352
2015-08-12 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,388,913 225,392 4.37 699,267 0.81 0.2424
2015-05-14 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,163,521 -237,372 -4.40 693,667 2.51 0.2555
2015-02-13 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,400,893 399,760 7.99 676,677 11.18 0.2474
2014-12-16 2014-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 5,001,133 -80,525 -1.58 608,640 -0.39 0.2340
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,001,133 608,640
2014-05-13 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,081,658 73,018 1.46 611,019 9.56 0.2559
2014-02-13 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,008,640 601,160 13.64 557,712 37.32 0.2372
2013-11-13 2013-09-30 13F THERMO FISHER SCIENTI COM 883556102 4,407,480 -162,863 -3.56 406,148 5.01 0.1920
2013-08-08 2013-06-30 13F THERMO FISHER SCIENTI COM 883556102 4,570,343 4,570,343 386,787 0.1951
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.