Thermo Fisher Scientific Inc.
CL ˙ SNSE ˙ US8835561023
SecurityCL:TMOCL / Thermo Fisher Scientific Inc.
InstitutionD.a. Davidson & Co.
Latest Disclosed Ownership5,833 shares
Latest Disclosed Value $ 2,867,293
D.a. Davidson & Co. reports 11.38% increase in ownership of TMOCL / Thermo Fisher Scientific Inc.

On May 5, 2026 - D.a. Davidson & Co. filed a 13F-HR form disclosing ownership of 5,833 shares of Thermo Fisher Scientific Inc. (CL:TMOCL) valued at $2,867,293 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 5,237 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 11.38% 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)
2026-05-05 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,833 596 11.38 2,867 -5.54 0.0174
2026-01-29 2025-12-31 13F THERMO FISHER SCIENTIFIC IN NC COM 883556102 5,237 375 7.71 3,035 28.71 0.0186
2025-10-22 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,862 192 4.11 2,358 24.56 0.0151
2025-07-30 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,670 -3,960 -45.89 1,894 -55.92 0.0133
2025-04-28 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,630 -110 -1.26 4,295 -5.56 0.0345
2025-01-31 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,740 -1,418 -13.96 4,547 -27.63 0.0370
2024-11-13 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,158 201 2.02 6,283 14.11 0.0519
2024-08-01 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,957 395 4.13 5,507 -0.92 0.0488
2024-05-13 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,562 239 2.56 5,558 12.29 0.0501
2024-02-09 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,323 -572 -5.78 4,949 -1.18 0.0485
2023-11-08 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,895 -632 -6.00 5,009 -8.81 0.0544
2023-08-11 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,527 -7 -0.07 5,493 -8.95 0.0580
2023-04-25 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,534 -2 -0.02 6,032 3.62 0.0679
2023-02-03 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,536 -30 -0.28 5,821 8.06 0.0687
2022-11-07 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,566 -100 -0.94 5,387 -7.04 0.0706
2022-07-28 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,666 -177 -1.63 5,795 -9.52 0.0728
2022-05-12 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,843 14 0.13 6,405 -11.29 0.0698
2022-01-31 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,829 2 0.02 7,220 16.72 0.0769
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,827 -164 -1.49 6,186 11.56 0.0718
2021-08-10 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,991 -336 -2.97 5,545 7.25 0.0650
2021-05-07 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,327 -1,292 -10.24 5,170 -11.77 0.0661
2021-02-10 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 12,619 -68 -0.54 5,860 4.61 0.0896
2020-11-02 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,687 -163 -1.27 5,602 20.32 0.0975
2020-08-10 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,850 -3,377 -20.81 4,656 1.00 0.0869
2020-05-05 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 16,227 -249 -1.51 4,610 -13.90 0.0900
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 16,476 1,626 10.95 5,354 23.79 0.0865
2019-11-05 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 14,850 -1,419 -8.72 4,325 -9.48 0.0775
2019-08-13 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 16,269 -13,860 -46.00 4,778 -36.61 0.0890
2019-05-13 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 30,129 -1,090 -3.49 7,537 7.87 0.1295
2019-01-29 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 31,219 -488 -1.54 6,987 -9.72 0.1362
2018-11-13 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 31,707 -4,560 -12.57 7,739 3.02 0.1377
2018-08-02 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 36,267 969 2.75 7,512 3.07 0.1472
2018-05-04 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 35,298 315 0.90 7,288 9.71 0.1506
2018-02-08 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 34,983 178 0.51 6,643 0.88 0.1393
2017-11-08 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 34,805 -155 -0.44 6,585 7.97 0.1292
2017-08-11 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 34,960 -94 -0.27 6,099 13.28 0.1377
2017-05-12 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 35,054 -30,693 -46.68 5,384 -41.93 0.1306
2017-02-15 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 65,747 8,307 14.46 9,272 1.52 0.2103
2016-11-18 2016-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 57,440 15,406 36.65 9,133 47.14 0.2273
2016-11-14 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 57,440 9,133
2016-08-13 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 42,034 597 1.44 6,207 5.83 0.1826
2016-05-13 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 41,437 1,647 4.14 5,865 3.95 0.1827
2016-02-12 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 39,790 245 0.62 5,642 16.76 0.1838
2015-11-13 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 39,545 458 1.17 4,832 -4.68 0.1691
2015-08-14 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 39,087 -575 -1.45 5,069 -4.79 0.1666
2015-05-06 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 39,662 23 0.06 5,324 7.27 0.1748
2015-02-12 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 39,639 5,509 16.14 4,963 19.56 0.1623
2014-11-12 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 34,130 217 0.64 4,151 3.80 0.1407
2014-07-29 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 33,913 -1,304 -3.70 3,999 -5.51 0.1354
2014-05-05 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 35,217 -626 -1.75 4,232 6.12 0.1513
2014-02-13 2013-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 35,843 -972 -2.64 3,988 17.64 0.1490
2014-02-12 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 35,843 3,988
2013-11-14 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 36,815 922 2.57 3,390 11.70 0.1525
2013-08-16 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,893 35,893 3,035 0.1465
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.