Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionGrove Bank & Trust
Latest Disclosed Ownership1,881 shares
Latest Disclosed Value $ 924,568
Grove Bank & Trust reports 5.50% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On April 8, 2026 - Grove Bank & Trust filed a 13F-HR form disclosing ownership of 1,881 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $924,568 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 1,783 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 5.50% 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)
2026-04-08 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,881 98 5.50 925 -10.55 0.1045
2026-01-08 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,783 503 39.30 1,033 66.61 0.1162
2025-10-06 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,280 -4,693 -78.57 621 -74.39 0.0726
2025-07-11 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,973 -317 -5.04 2,422 -22.63 0.3020
2025-04-17 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,290 132 2.14 3,130 -2.31 0.4183
2025-01-16 2024-12-31 13F Thermo Fisher Scientific COM 883556102 6,158 66 1.08 3,204 -14.99 0.4446
2024-10-11 2024-09-30 13F Thermo Fisher Scientific COM 883556102 6,092 187 3.17 3,768 15.41 0.5566
2024-07-24 2024-06-30 13F Thermo Fisher Scientific COM 883556102 5,905 250 4.42 3,265 -0.64 0.5242
2024-04-30 2024-03-31 13F Thermo Fisher Scientific COM 883556102 5,655 2,107 59.39 3,287 74.51 0.5536
2024-01-30 2023-12-31 13F Thermo Fisher Scientific COM 883556102 3,548 70 2.01 1,883 6.99 0.3465
2023-10-30 2023-09-30 13F Thermo Fisher Scientific COM 883556102 3,478 316 9.99 1,760 6.73 0.3588
2023-07-27 2023-06-30 13F Thermo Fisher Scientific COM 883556102 3,162 91 2.96 1,650 -6.84 0.3332
2023-05-10 2023-03-31 13F Thermo Fisher Scientific COM 883556102 3,071 37 1.22 1,770 176,900.00 0.3742
2023-02-03 2022-12-31 13F Thermo Fisher Scientific COM 883556102 3,034 1,813 148.48 2 -99.84 0.3687
2022-10-28 2022-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,221 0 0.00 619 -6.64 0.1534
2022-07-29 2022-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,221 0 0.00 663 -8.04 0.1588
2022-04-22 2022-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,221 93 8.24 721 -4.25 0.1418
2022-01-31 2021-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,128 0 0.00 753 16.93 0.1438
2021-10-28 2021-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,128 0 0.00 644 13.18 0.1355
2021-07-28 2021-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,128 -4 -0.35 569 10.06 0.1232
2021-04-23 2021-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,132 -7 -0.61 517 -2.64 0.1216
2021-02-03 2020-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,139 159 16.22 531 22.63 0.1379
2020-10-30 2020-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 980 93 10.48 433 34.89 0.1326
2020-07-31 2020-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 887 94 11.85 321 42.67 0.1057
2020-05-05 2020-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 793 -349 -30.56 225 -39.35 0.0888
2020-02-11 2019-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,142 -5 -0.44 371 11.08 0.1115
2019-10-30 2019-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,147 306 36.39 334 35.22 0.1077
2019-07-24 2019-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 841 26 3.19 247 10.76 0.0902
2019-04-26 2019-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 815 815 223 0.0856
2018-05-07 2018-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 0 -755 -100.00 0 -100.00
2018-02-02 2017-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 755 -345 -31.36 143 -31.25 0.0624
2017-11-13 2017-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,100 240 27.91 208 38.67 0.1012
2017-07-28 2017-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 860 143 19.94 150 36.36 0.0960
2017-04-28 2017-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 717 -950 -56.99 110 -53.19 0.0903
2017-02-03 2016-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,667 72 4.51 235 -7.48 0.1794
2016-11-04 2016-09-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 1,595 600 60.30 254 72.79 0.2164
2016-08-05 2016-06-30 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 995 0 0.00 147 4.26 0.1317
2016-05-11 2016-03-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 995 0 0.00 141 0.00 0.1285
2016-01-27 2015-12-31 13F THERMO FISHER SCIENTIFIC COMMON STOCK 883556102 995 995 141 0.1264
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.