Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionWindward Capital Management Co /ca
Latest Disclosed Ownership32,317 shares
Latest Disclosed Value $ 15,884,901
Windward Capital Management Co /ca reports 1.85% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 13, 2026 - Windward Capital Management Co /ca filed a 13F-HR form disclosing ownership of 32,317 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $15,884,901 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 32,925 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -1.85% 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)
2026-05-13 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 32,317 -608 -1.85 15,885 -16.74 1.2936
2026-01-28 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 32,925 -1,141 -3.35 19,078 15.47 1.5113
2025-10-30 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 34,066 -344 -1.00 16,523 18.43 1.3176
2025-08-12 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 34,410 -211 -0.61 13,952 -19.02 1.1838
2025-05-13 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 34,621 -539 -1.53 17,228 -5.82 1.4859
2025-01-27 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 35,160 -452 -1.27 18,292 -16.96 1.3985
2024-11-01 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,612 -208 -0.58 22,029 11.21 1.6808
2024-08-06 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,820 -949 -2.58 19,808 -7.31 1.6671
2024-09-20 2024-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 36,769 -506 -1.36 21,370 112,373.68 1.7837
2024-05-07 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 36,769 -506 21,370 1.7837
2024-10-03 2023-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 37,275 -89 -0.24 20 5.56 1.7155
2024-01-16 2023-12-31 13F THERMO FISHER SCNTFC COM 883556102 37,275 -89 20 1.6916
2024-10-03 2023-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 37,364 -779 -2.04 19 -5.26 1.8517
2023-10-20 2023-09-30 13F THERMO FISHER SCNTFC COM 883556102 37,364 -779 19 1.8267
2023-07-18 2023-06-30 13F THERMO FISHER SCNTFC COM 883556102 38,143 208 0.55 20 -9.52 1.7970
2023-04-24 2023-03-31 13F THERMO FISHER SCNTFC COM 883556102 37,935 893 2.41 22 5.00 2.0153
2023-01-06 2022-12-31 13F THERMO FISHER SCNTFC COM 883556102 37,042 -187 -0.50 20 -99.89 2.2131
2022-10-14 2022-09-30 13F THERMO FISHER SCNTFC COM 883556102 37,229 64 0.17 18,882 -6.48 2.1350
2022-07-08 2022-06-30 13F THERMO FISHER SCNTFC COM 883556102 37,165 239 0.65 20,191 -7.42 2.1728
2022-04-20 2022-03-31 13F THERMO FISHER SCNTFC COM 883556102 36,926 -84 -0.23 21,810 -11.68 1.9462
2022-01-14 2021-12-31 13F THERMO FISHER SCNTFC COM 883556102 37,010 57 0.15 24,695 16.97 2.0454
2021-10-12 2021-09-30 13F THERMO FISHER SCNTFC COM 883556102 36,953 -99 -0.27 21,113 12.95 1.9566
2021-07-19 2021-06-30 13F THERMO FISHER SCNTFC COM 883556102 37,052 -77 -0.21 18,692 10.31 1.7370
2021-04-15 2021-03-31 13F THERMO FISHER SCNTFC COM 883556102 37,129 19,769 113.88 16,945 109.56 1.6944
2021-01-21 2020-12-31 13F THERMO FISHER SCNTFC COM 883556102 17,360 16,258 1,475.32 8,086 1,560.37 0.8146
2020-10-13 2020-09-30 13F THERMO FISHER SCNTFC COM 883556102 1,102 -14 -1.25 487 20.54 0.0492
2020-07-20 2020-06-30 13F THERMO FISHER SCNTFC COM 883556102 1,116 -11 -0.98 404 26.25 0.0458
2020-04-14 2020-03-31 13F THERMO FISHER SCNTFC COM 883556102 1,127 -92 -7.55 320 -19.19 0.0429
2020-01-14 2019-12-31 13F THERMO FISHER SCIENTIFICINC COM 883556102 1,219 -8 -0.65 396 10.92 0.0423
2019-10-11 2019-09-30 13F THERMO FISHER SCIENTIFICINC COM 883556102 1,227 -42 -3.31 357 -4.29 0.0427
2019-07-11 2019-06-30 13F THERMO FISHER SCIENTIFICINC COM 883556102 1,269 -31 -2.38 373 4.78 0.0465
2019-04-12 2019-03-31 13F THERMO FISHER SCIENTIFICINC COM 883556102 1,300 -10 -0.76 356 21.50 0.0455
2019-01-15 2018-12-31 13F THERMO FISHER SCIENTIFICINC COM 883556102 1,310 -26 -1.95 293 -10.12 0.0422
2018-10-10 2018-09-30 13F THERMO FISHER SCIENTIFICINC COM 883556102 1,336 1,336 326 0.0405
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.