Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionFirst Financial Corp /in/
Latest Disclosed Ownership2,373 shares
Latest Disclosed Value $ 1,166,401
First Financial Corp /in/ reports 4.43% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On April 7, 2026 - First Financial Corp /in/ filed a 13F-HR form disclosing ownership of 2,373 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $1,166,401 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 2,483 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -4.43% 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)
2026-04-07 2026-03-31 13F Thermo Fisher Scientific Com 883556102 2,373 -110 -4.43 1,166 -18.92 0.2612
2026-01-13 2025-12-31 13F Thermo Fisher Scientific Com 883556102 2,483 -18 -0.72 1,439 18.55 0.5430
2025-10-09 2025-09-30 13F Thermo Fisher Scientific Com 883556102 2,501 59 2.42 1,213 22.53 0.4753
2025-07-09 2025-06-30 13F Thermo Fisher Scientific Com 883556102 2,442 214 9.61 990 -10.65 0.4421
2025-04-10 2025-03-31 13F Thermo Fisher Scient Com 883556102 2,228 147 7.06 1,109 2.40 0.5359
2025-01-13 2024-12-31 13F Thermo Fisher Scient Com 883556102 2,081 3 0.14 1,083 -15.80 0.5043
2024-10-24 2024-09-30 13F Thermo Fisher Scient Com 883556102 2,078 -69 -3.21 1,285 8.26 0.6135
2024-07-11 2024-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,147 11 0.51 1,187 -4.35 0.6048
2024-04-12 2024-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,136 30 1.42 1,241 11.10 0.6302
2024-01-16 2023-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,106 93 4.62 1,118 9.72 0.5687
2023-10-11 2023-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,013 106 5.56 1,019 2.41 0.5973
2023-07-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,907 -265 -12.20 995 -20.54 0.6378
2023-04-17 2023-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,172 -201 -8.47 1,252 -4.21 0.7786
2023-01-17 2022-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,373 45 1.93 1,307 10.68 0.8019
2022-10-20 2022-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,328 36 1.57 1,180 -5.30 0.7928
2022-07-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,292 -105 -4.38 1,246 -12.01 0.8199
2022-04-14 2022-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,397 125 5.50 1,416 -6.60 0.7159
2022-01-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,272 -245 -9.73 1,516 5.42 0.9259
2021-10-18 2021-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,517 -26 -1.02 1,438 12.08 0.9552
2021-07-15 2021-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,543 99 4.05 1,283 15.07 0.8531
2021-04-15 2021-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,444 -153 -5.89 1,115 -7.85 0.7740
2021-01-15 2020-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,597 -89 -3.31 1,210 2.02 0.8922
2020-10-13 2020-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,686 -69 -2.50 1,186 18.84 1.0056
2020-07-15 2020-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,755 1,510 121.29 998 182.72 0.8509
2020-04-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,245 -170 -12.01 353 -23.09 0.3243
2020-01-15 2019-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,415 -13 -0.91 459 10.34 0.3339
2019-10-15 2019-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,428 -33 -2.26 416 -3.26 0.3243
2019-07-15 2019-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,461 -107 -6.82 430 0.23 0.3475
2019-04-12 2019-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,568 -25 -1.57 429 20.51 0.3204
2019-01-15 2018-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,593 0 0.00 356 -8.48 0.2867
2018-10-16 2018-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,593 -57 -3.45 389 14.08 0.2548
2018-07-12 2018-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,650 -188 -10.23 341 -10.03 0.2388
2018-04-17 2018-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,838 -245 -11.76 379 -4.29 0.2722
2018-01-16 2017-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,083 -88 -4.05 396 -3.65 0.2557
2017-10-13 2017-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,171 -80 -3.55 411 4.58 0.2686
2017-07-13 2017-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,251 -75 -3.22 393 10.08 0.2496
2017-04-18 2017-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,326 -321 -12.13 357 -4.29 0.2267
2017-01-10 2016-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 2,647 -616 -18.88 373 -28.13 0.2219
2016-10-17 2016-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 3,263 -376 -10.33 519 -3.53 0.3077
2016-07-12 2016-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 3,639 -7,765 -68.09 538 -66.69 0.3120
2016-04-18 2016-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 11,404 475 4.35 1,615 4.19 0.8420
2016-01-14 2015-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 10,929 505 4.84 1,550 21.57 0.8200
2015-10-09 2015-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 10,424 405 4.04 1,275 -1.92 0.7167
2015-07-14 2015-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 10,019 650 6.94 1,300 3.26 0.6587
2015-04-14 2015-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 9,369 -145 -1.52 1,259 5.62 0.6346
2015-01-08 2014-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 9,514 -92 -0.96 1,192 1.97 0.5946
2014-10-21 2014-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 9,606 45 0.47 1,169 3.63 0.5801
2014-07-18 2014-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 9,561 0 0.00 1,128 -1.83 0.5429
2014-07-17 2014-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 10,301 1,147
2014-04-21 2014-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 9,561 -740 -7.18 1,149 0.17 0.5520
2014-01-23 2013-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 10,301 -2,650 -20.46 1,147 -3.86 0.5364
2013-10-28 2013-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 12,951 -165 -1.26 1,193 7.48 0.5873
2013-07-24 2013-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 13,116 13,116 1,110 0.5503
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.