Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionTrillium Asset Management, Llc
Latest Disclosed Ownership60,524 shares
Latest Disclosed Value $ 16,539,182
Trillium Asset Management, Llc reports 78.33% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 11, 2026 - Trillium Asset Management, Llc filed a 13F-HR form disclosing ownership of 60,524 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $16,539,182 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 33,939 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 78.33% 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)
2026-05-11 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 60,524 26,585 78.33 16,539 -16.78 0.5488
2026-02-13 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 33,939 -2,881 -7.82 19,874 11.28 0.6082
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 36,820 -38,005 -50.79 17,860 -41.14 0.4717
2025-08-06 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 74,825 -5,439 -6.78 30,339 -24.04 0.8162
2025-05-13 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 80,264 -3,065 -3.68 39,940 -7.87 1.1493
2025-02-11 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 83,329 -4,366 -4.98 43,351 -20.08 1.1238
2024-11-07 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 87,695 -1,761 -1.97 54,246 9.65 1.3320
2024-08-08 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 89,456 -3,241 -3.50 49,469 -8.18 1.2494
2024-05-09 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 92,697 -253 -0.27 53,876 9.20 1.3713
2024-02-08 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 92,950 1,135 1.24 49,338 6.16 1.3441
2023-11-08 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 91,815 1,112 1.23 46,474 -1.80 1.4004
2023-08-10 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 90,703 9,178 11.26 47,324 4.41 1.3264
2023-05-09 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 81,525 1,621 2.03 45,326 3.01 1.3282
2023-02-08 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 79,904 -45 -0.06 44,002 8.51 1.3546
2022-11-09 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 79,949 2,386 3.08 40,549 -4.34 1.3284
2022-08-08 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 77,563 8,993 13.12 42,389 4.66 1.3001
2022-05-04 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 68,570 31,359 84.27 40,501 63.13 1.0772
2022-02-08 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 37,211 1,231 3.42 24,828 20.78 0.5823
2021-11-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,980 16,887 88.45 20,556 114.46 0.5427
2021-11-12 2021-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 19,093 2,298 13.68 9,585 25.07 0.2648
2021-08-06 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 19,093 2,298 9,585 0.2097
2021-05-10 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 16,795 4,932 41.57 7,664 38.69 0.2419
2021-02-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,863 11,863 5,526 0.1985
2020-02-10 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,262 -100.00 0 -100.00
2019-11-06 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,262 -3,007 -70.44 367 -6.62 0.0171
2013-10-17 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,269 4,269 393 0.0438
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.