Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionHarrington Investments, INC
Latest Disclosed Ownership9,748 shares
Latest Disclosed Value $ 4,791,434
Harrington Investments, INC reports 1.04% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On April 13, 2026 - Harrington Investments, INC filed a 13F-HR form disclosing ownership of 9,748 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $4,791,434 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 9,648 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 1.04% 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)
2026-04-13 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,748 100 1.04 4,791 -14.29 2.5214
2026-01-13 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,648 -219 -2.22 5,591 16.82 2.8084
2025-10-20 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,867 -72 -0.72 4,786 18.76 2.3892
2025-07-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,939 -64 -0.64 4,030 -19.05 2.1324
2025-04-11 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,003 -46 -0.46 4,977 -4.78 2.8297
2025-02-10 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,049 -112 -1.10 5,228 -16.83 2.8734
2024-10-11 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,161 -43 -0.42 6,285 11.40 3.4290
2024-08-06 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,204 -495 -4.63 5,643 -9.26 3.2008
2024-04-26 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,699 -178 -1.64 6,218 7.71 3.5579
2024-01-17 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,877 -285 -2.55 5,773 2.20 3.5765
2023-10-19 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 11,162 -128 -1.13 5,650 -4.09 3.8887
2023-07-20 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 11,290 -282 -2.44 5,891 -11.68 3.8637
2023-04-28 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,572 -107 -0.92 6,670 3.70 4.6029
2023-01-11 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,679 -509 -4.18 6,432 4.03 4.6519
2022-10-19 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,188 4 0.03 6,182 -6.60 4.8085
2022-07-22 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,184 -966 -7.35 6,619 -14.78 4.9222
2022-04-26 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,150 -30 -0.23 7,767 -11.68 4.6514
2022-01-21 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,180 -285 -2.12 8,794 14.31 4.7298
2021-10-28 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,465 -72 -0.53 7,693 12.65 4.4388
2021-08-03 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 13,537 86 0.64 6,829 11.24 4.0432
2021-04-30 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,451 -104 -0.77 6,139 -2.77 3.8389
2021-01-13 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,555 -716 -5.02 6,314 0.21 4.1984
2020-10-21 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 14,271 -212 -1.46 6,301 20.06 4.4607
2020-07-21 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 14,483 -427 -2.86 5,248 24.12 4.0915
2020-05-07 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,910 -280 -1.84 4,228 -14.33 3.9623
2020-02-10 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 15,190 -124 -0.81 4,935 10.63 3.8202
2019-11-05 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 15,314 -133 -0.86 4,461 -1.65 3.6756
2019-08-07 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 15,447 5 0.03 4,536 7.31 3.7323
2019-04-29 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 15,442 87 0.57 4,227 23.02 3.6370
2019-02-01 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 15,355 -87 -0.56 3,436 -8.84 3.3049
2018-10-25 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 15,442 -235 -1.50 3,769 16.08 2.9917
2018-10-18 2018-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 15,677 -545 -3.36 3,247 -3.05 2.7452
2018-09-13 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 16,222 0 3,349
2018-04-12 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 16,222 -262 -1.59 3,349 7.00 2.7454
2018-02-01 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 16,484 323 2.00 3,130 2.35 2.6082
2017-10-23 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 16,161 16,161 3,058 2.9235
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.