Thermo Fisher Scientific Inc.
CL ˙ SNSE ˙ US8835561023
SecurityCL:TMOCL / Thermo Fisher Scientific Inc.
InstitutionDundas Partners LLP
Latest Disclosed Ownership97,396 shares
Latest Disclosed Value $ 47,873,056
Dundas Partners LLP reports 1.03% decrease in ownership of TMOCL / Thermo Fisher Scientific Inc.

On May 14, 2026 - Dundas Partners LLP filed a 13F-HR form disclosing ownership of 97,396 shares of Thermo Fisher Scientific Inc. (CL:TMOCL) valued at $47,873,056 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 98,406 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -1.03% 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)
2026-05-14 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 97,396 -1,010 -1.03 47,873 -16.04 3.8172
2026-02-12 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 98,406 3,175 3.33 57,021 23.45 4.0153
2025-11-13 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 95,231 2,038 2.19 46,189 22.24 3.2609
2025-08-12 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 93,193 18,041 24.01 37,786 1.05 2.6265
2025-05-13 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 75,152 4,914 7.00 37,396 2.34 2.7533
2025-02-07 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 70,238 0 0.00 36,540 -15.90 2.5627
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 70,238 0 0.00 43,447 114,234.21 3.1264
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 70,238 664 0.95 39 -5.00 3.0133
2024-05-14 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 69,574 6,923 11.05 40 21.21 3.1836
2024-02-08 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 62,651 886 1.43 33 6.45 2.8990
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 61,765 8,477 15.91 31 14.81 3.0731
2023-08-11 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 53,288 0 0.00 28 -10.00 2.6176
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 53,288 -137 -0.26 31 3.45 3.2117
2023-02-08 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 53,425 849 1.61 29 -99.89 3.1976
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 52,576 0 0.00 26,666 -6.64 3.1022
2022-08-12 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 52,576 0 0.00 28,563 -8.02 3.0928
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 52,576 11,730 28.72 31,054 32.34 2.8238
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 40,846 2,278 5.91 23,466 6.49 2.9166
2021-11-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 0.00 22,035 13.26 3.1090
2021-08-09 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 0.00 19,456 10.53 2.8230
2021-05-14 2021-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 0.00 17,602 -18.15 2.7934
2021-05-14 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 17,602 2.7841
2021-02-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 0.00 21,505 26.28 3.1432
2020-11-13 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 0.00 17,029 21.85 3.4152
2020-08-13 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 0.00 13,975 27.56 3.0560
2020-05-14 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 0.00 10,956 -12.49 2.8711
2020-02-07 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 0.00 12,519 11.42 2.8336
2019-11-01 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 0 0.00 11,236 -0.79 2.7978
2019-08-01 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38,568 350 0.92 11,325 8.93 2.6456
2019-05-02 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 38,218 0 0.00 10,397 -7.49 2.5600
2019-02-15 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 38,218 0 0.00 11,239 -5.80 2.4545
2018-11-13 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38,218 8,397 28.16 11,931 92.81 2.4089
2018-07-26 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 29,821 -6,402 -17.67 6,188 -12.85 2.1099
2018-06-06 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 36,223 36,223 7,100 2.2000
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.