Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionRehmann Capital Advisory Group
Latest Disclosed Ownership2,098 shares
Latest Disclosed Value $ 1,031,577
Rehmann Capital Advisory Group reports 1.78% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 15, 2026 - Rehmann Capital Advisory Group filed a 13F-HR form disclosing ownership of 2,098 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $1,031,577 USD as of March 31, 2026. The entity filed a previous 13F-HR on March 4, 2026 disclosing 2,136 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -1.78% 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)
2026-05-15 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,098 -38 -1.78 1,032 -16.72 0.0537
2026-03-04 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,136 34 1.62 1,238 22.21 0.0645
2025-11-13 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,102 88 4.37 1,014 24.14 0.0555
2025-07-30 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,014 -433 -17.70 817 -33.00 0.0495
2025-04-30 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,447 42 1.75 1,218 -2.64 0.0767
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,405 -163 -6.35 1,252 -21.27 0.0793
2024-11-18 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,568 -708 -21.61 1,590 -12.26 0.1039
2024-08-12 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,276 95 2.99 1,812 -2.00 0.1298
2024-05-03 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,181 -14 -0.44 1,849 8.96 0.1378
2024-02-13 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,195 24 0.76 1,696 5.67 0.1406
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,171 -127 -3.85 1,605 -6.69 0.1495
2023-08-23 2023-06-30 13F/A-1 THERMOFISHERSCIENTIFICINC COM 883556102 3,298 -75 -2.22 1,721 -11.52 0.1543
2023-08-15 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,373 0 1,944 0.1829
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,373 15 0.45 1,944 5.14 0.1829
2023-02-10 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,358 -132 -3.78 1,849 4.46 0.1895
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,490 -258 -6.88 1,770 -13.06 0.1963
2022-08-12 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,748 -104 -2.70 2,036 -10.47 0.2240
2022-06-03 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,852 -96 -2.43 2,275 -13.67 0.2161
2022-03-02 2021-12-31 13F THERMO FISHER SCIENTIFIC TMO 883556102 3,948 -80 -1.99 2,635 14.47 0.2449
2021-11-16 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,028 13 0.32 2,302 13.74 0.2181
2021-08-13 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,015 171 4.45 2,024 15.34 0.1957
2021-05-26 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,844 -9 -0.23 1,755 -2.23 0.1794
2021-02-19 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,853 273 7.63 1,795 13.54 0.2026
2020-11-19 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,580 -2,175 -37.79 1,581 -24.22 0.2005
2020-11-20 2020-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 5,755 304 5.58 2,086 34.86 0.2846
2020-08-25 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 900 0 255 134,826.6752
2020-11-20 2020-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 5,451 1,981 57.09 1,546 53.07 0.2523
2020-08-24 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 900 -2,570 255 142,387.3359
2020-01-02 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,470 127 3.80 1,011 2.96 0.1223
2019-08-27 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,343 124 3.85 982 11.35 0.1209
2019-05-22 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,219 18 0.56 881 23.04 0.1194
2019-02-12 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,201 -87 -2.65 717 -10.72 0.1075
2018-12-07 2018-09-30 13F/A-1 THERMOFISHERSCIENTIFICINC COM 883556102 3,288 173 5.55 803 24.34 0.1107
2018-09-20 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,115 -513 -14.14 645 -13.89 0.0936
2018-04-24 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,628 -1 -0.03 749 8.71 0.1166
2018-02-22 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,629 -72 -1.95 689 -1.57 0.1162
2017-10-25 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,701 -633 -14.61 700 -7.41 0.1262
2017-07-19 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,334 57 1.33 756 15.07 0.1444
2017-04-24 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,277 -69 -1.59 657 7.18 0.1097
2017-02-13 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,346 328 8.16 613 -4.07 0.1122
2016-10-26 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,018 -558 -12.19 639 -5.47 0.1238
2016-07-25 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,576 -176 -3.70 676 0.45 0.1265
2016-05-09 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,752 1,245 35.50 673 35.14 0.1310
2016-02-11 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,507 -99 -2.75 498 12.93 0.1046
2015-11-12 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,606 233 6.91 441 0.68 0.0998
2015-07-08 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,373 -12 -0.35 438 -3.74 0.1000
2015-04-14 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,385 283 9.12 455 16.97 0.1032
2015-03-09 2014-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 3,102 124 4.16 389 7.46 0.0895
2015-09-01 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,978 -211 -6.62 362 -3.72 0.0857
2015-09-01 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,189 591 22.75 376 20.51 0.0898
2015-08-31 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,598 2,598 312 0.0843
2015-08-31 2012-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 0 0 0.0000
2015-08-31 2011-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -5,666 -100.00 0 -100.00
2015-08-31 2011-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,666 -254 -4.29 287 -24.67 0.1050
2015-08-31 2011-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,920 -170 -2.79 381 12.72 0.1181
2015-08-31 2011-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,090 641 11.76 338 11.92 0.1175
2015-08-31 2010-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,449 -74 -1.34 302 14.39 0.1654
2015-08-31 2010-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,523 -305 -5.23 264 -7.69 0.1691
2015-08-31 2010-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,828 1,145 24.45 286 18.67 0.2125
2015-08-27 2010-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,683 -250 -5.07 241 2.55 0.1474
2015-08-27 2009-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,933 4,933 235 0.1520
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.