Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionCompass Capital Management, Inc
Latest Disclosed Ownership105,632 shares
Latest Disclosed Value $ 51,921,162
Compass Capital Management, Inc reports 7.57% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 21, 2026 - Compass Capital Management, Inc filed a 13F-HR form disclosing ownership of 105,632 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $51,921,162 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 114,283 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -7.57% 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)
2026-05-21 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 105,632 -8,651 -7.57 51,921 -21.59 3.1363
2026-02-12 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 114,283 -22,167 -16.25 66,221 0.06 3.6788
2025-11-13 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 136,450 -15,402 -10.14 66,181 7.49 3.5000
2025-08-07 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 151,852 40,068 35.84 61,570 10.69 3.2975
2025-04-17 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 111,784 2,909 2.67 55,624 -1.79 3.6585
2025-01-24 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 108,875 6,738 6.60 56,640 -10.35 3.7124
2024-10-25 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 102,137 -702 -0.68 63,179 11.09 4.0047
2024-07-25 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 102,839 -941 -0.91 56,870 -5.72 3.8120
2024-04-30 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 103,780 971 0.94 60,318 10.53 3.8951
2024-02-05 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 102,809 7,288 7.63 54,570 12.86 3.8622
2023-10-30 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 95,521 -3,982 -4.00 48,350 -6.87 3.7984
2023-07-31 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 99,503 3,725 3.89 51,916 -5.96 3.7372
2023-05-02 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 95,778 -995 -1.03 55,204 3.59 4.2263
2023-01-30 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 96,773 -1,407 -1.43 53,292 7.02 4.3675
2022-10-27 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 98,180 -2,074 -2.07 49,796 -8.57 4.3701
2022-07-27 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 100,254 184 0.18 54,466 -7.85 4.4665
2022-05-06 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 100,070 1,107 1.12 59,107 -10.49 4.2148
2022-01-31 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 98,963 -4,219 -4.09 66,032 12.01 4.4226
2021-11-05 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 103,182 -5,814 -5.33 58,951 7.21 4.5422
2021-08-09 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 108,996 8,164 8.10 54,985 19.49 4.2053
2021-04-29 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 100,832 4,197 4.34 46,018 2.24 3.8978
2021-02-05 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 96,635 -4,296 -4.26 45,011 1.01 3.9430
2020-11-12 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 100,931 -7,024 -6.51 44,563 13.93 4.3177
2020-08-06 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 107,955 -7,702 -6.66 39,116 19.26 4.2826
2020-04-24 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 115,657 -7,744 -6.28 32,800 -18.18 4.2416
2020-01-30 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 123,401 -886 -0.71 40,089 10.74 4.3331
2019-10-22 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 124,287 155 0.12 36,201 -0.70 4.2327
2019-07-31 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 124,132 -1,794 -1.42 36,455 5.76 4.3432
2019-05-06 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 125,926 -7,261 -5.45 34,468 15.64 4.3583
2019-01-25 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 133,187 306 0.23 29,806 -8.10 4.2423
2018-10-31 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 132,881 -1,920 -1.42 32,434 16.16 4.2492
2018-07-20 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 134,801 -4,036 -2.91 27,923 -2.59 4.0631
2018-04-27 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 138,837 -2,920 -2.06 28,664 6.49 4.2886
2018-01-30 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 141,757 3,264 2.36 26,917 2.72 4.0706
2017-11-01 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 138,493 -5,864 -4.06 26,203 4.04 4.1627
2017-07-27 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 144,357 -2,315 -1.58 25,186 11.79 4.1032
2017-05-02 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 146,672 3,374 2.35 22,529 11.42 3.8794
2017-02-02 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 143,298 1,203 0.85 20,219 -10.54 3.7743
2016-11-01 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 142,095 -2,107 -1.46 22,602 6.08 4.2430
2016-07-28 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 144,202 -1,723 -1.18 21,307 3.12 4.0740
2016-05-03 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 145,925 -836 -0.57 20,662 -0.75 4.1141
2016-01-28 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 146,761 -2,184 -1.47 20,818 14.30 4.4077
2015-10-29 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 148,945 1,531 1.04 18,213 -4.78 4.0859
2015-07-30 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 147,414 321 0.22 19,128 -3.20 4.0383
2015-05-01 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 147,093 147,093 0.00 19,760 4.1156
2015-01-29 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -143,665 -100.00 0 -100.00
2014-10-28 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 143,665 -42 -0.03 17,484 3.11 3.3663
2014-07-28 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 143,707 -3,672 -2.49 16,957 -4.31 3.2797
2014-04-24 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 147,379 -14,403 -8.90 17,721 -1.63 3.5381
2014-01-28 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 161,782 -3,410 -2.06 18,014 18.34 3.6324
2013-10-24 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 165,192 -67 -0.04 15,222 8.84 3.4257
2013-07-25 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 165,259 165,259 13,986 3.4031
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.