Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionGw Henssler & Associates Ltd
Latest Disclosed Ownership38,239 shares
Latest Disclosed Value $ 18,795,497
Gw Henssler & Associates Ltd reports 0.86% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 15, 2026 - Gw Henssler & Associates Ltd filed a 13F-HR form disclosing ownership of 38,239 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $18,795,497 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 37,914 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 0.86% 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 38,239 325 0.86 18,795 -14.45 0.8853
2026-02-10 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 37,914 -160 -0.42 21,969 18.97 1.0571
2026-01-23 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 38,074 1,017 2.74 18,466 22.91 0.9226
2025-07-25 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 37,057 347 0.95 15,025 -17.75 0.8026
2025-05-15 2025-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 36,710 19,285 110.67 18,267 69.47 1.0477
2025-05-14 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 17,117 -308 10,588 0.6119
2025-01-24 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 17,425 0 0.00 10,779 0.00 0.6178
2024-10-25 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 17,425 -4 -0.02 10,779 11.83 0.6097
2024-08-01 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 17,429 -72 -0.41 9,638 -5.24 0.5801
2024-05-07 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 17,501 -131 -0.74 10,172 8.69 0.5975
2024-01-26 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 17,632 -1,239 -6.57 9,359 -2.02 0.6179
2023-10-24 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 18,871 -482 -2.49 9,552 -5.41 0.6521
2023-08-02 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 19,353 -472 -2.38 10,097 -11.63 0.6631
2023-04-26 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 19,825 -180 -0.90 11,427 3.72 0.7591
2023-02-03 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 20,005 -229 -1.13 11,017 7.35 0.7736
2022-11-04 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 20,234 -25 -0.12 10,262 -6.76 0.7681
2022-08-04 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 20,259 -73 -0.36 11,006 -8.35 0.8171
2022-05-09 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 20,332 -94 -0.46 12,009 -11.89 0.7294
2022-01-28 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 20,426 -394 -1.89 13,629 14.58 0.8694
2021-11-02 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 20,820 -398 -1.88 11,895 11.13 0.8251
2021-08-09 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 21,218 -197 -0.92 10,704 9.53 0.7040
2021-04-28 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 21,415 -229 -1.06 9,773 -3.06 0.6988
2021-02-02 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 21,644 -173 -0.79 10,081 4.65 0.7701
2020-10-22 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 21,817 -38 -0.17 9,633 21.64 0.8169
2020-07-21 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 21,855 -940 -4.12 7,919 22.49 0.6961
2020-04-27 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 22,795 -1,627 -6.66 6,465 -18.52 0.6551
2020-02-24 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 24,422 -586 -2.34 7,934 8.92 0.6561
2019-11-18 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 25,008 -463 -1.82 7,284 -2.62 0.6485
2019-08-05 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 25,471 -542 -2.08 7,480 5.06 0.6772
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC I COM 883556102 26,013 -5,683 -17.93 7,120 0.38 0.6525
2019-01-22 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 31,696 -1,681 -5.04 7,093 -12.94 0.7577
2018-10-23 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 33,377 -1,666 -4.75 8,147 12.23 0.7416
2018-08-06 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,043 -1,930 -5.22 7,259 -4.90 0.7122
2018-05-04 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 36,973 -3,365 -8.34 7,633 -0.34 0.7667
2018-02-06 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 40,338 -1,287 -3.09 7,659 -2.74 0.7159
2017-11-03 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 41,625 -4,143 -9.05 7,875 -1.38 0.7902
2017-08-03 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 45,768 -1,920 -4.03 7,985 9.01 0.8319
2017-04-24 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 47,688 -4,431 -8.50 7,325 -0.39 0.7906
2017-01-17 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 52,119 -1,704 -3.17 7,354 -14.10 0.8141
2016-10-28 2016-09-30 13F THERMO FISHER SCIENTIFIC IN COM 883556102 53,823 -5,176 -8.77 8,561 -1.80 0.9791
2016-07-28 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 58,999 -4,955 -7.75 8,718 -3.72 1.0037
2016-04-21 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 63,954 -11,271 -14.98 9,055 -15.14 1.0635
2016-01-28 2015-12-31 13F THERMO FISHER SCIENTIFIC I COM 883556102 75,225 -11,205 -12.96 10,671 0.97 1.2617
2015-10-23 2015-09-30 13F THERMO FISHER SCIENTIFIC I COM 883556102 86,430 -15,249 -15.00 10,569 -19.90 1.2129
2015-07-21 2015-06-30 13F THERMO FISHER SCIENTIFIC IN COM 883556102 101,679 -20,163 -16.55 13,194 -19.39 1.4348
2015-05-11 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 121,842 -11,183 -8.41 16,368 -1.79 1.8949
2015-02-06 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 133,025 -454 -0.34 16,667 2.60 1.8678
2014-11-07 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 133,479 -1,168 -0.87 16,244 2.24 1.9695
2014-08-12 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 134,647 -5,789 -4.12 15,888 -5.91 1.9264
2014-05-12 2014-03-31 13F Thermo Fischer Scientific COM 883556102 140,436 -22,115 -13.60 16,886 -6.71 1.9817
2014-02-07 2013-12-31 13F Thermo Fischer Scientific COM 883556102 162,551 -2,250 -1.37 18,100 19.19 2.1172
2013-11-06 2013-09-30 13F Thermo Fischer Scientific COM 883556102 164,801 -1,833 -1.10 15,186 7.69 1.9593
2013-08-02 2013-06-30 13F Thermo Fischer Scientific COM 883556102 166,634 166,634 14,102 1.9414
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.