Thermo Fisher Scientific Inc.
US ˙ NYSE ˙ US8835561023

SecurityTMO / Thermo Fisher Scientific Inc.
InstitutionWest Paces Advisors Inc.
Latest Disclosed Ownership502 shares
Latest Disclosed Value $ 246,748
West Paces Advisors Inc. reports 1.95% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 5, 2026 - West Paces Advisors Inc. filed a 13F-HR form disclosing ownership of 502 shares of Thermo Fisher Scientific Inc. (US:TMO) valued at $246,748 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 512 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -1.95% during the quarter. The current value of the position is $237,923 USD.

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)
2026-05-05 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 502 -10 -1.95 247 -16.89 0.0478
2026-01-21 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 512 40 8.47 297 29.82 0.0574
2025-10-22 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 472 472 229 0.0456
2025-07-23 2025-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 0 -490 -100.00 0 -100.00
2025-04-15 2025-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 490 0 0.00 244 -4.33 0.0555
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 490 -11 -2.20 255 -17.80 0.0622
2024-10-15 2024-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 501 0 0.00 310 11.55 0.0759
2024-07-17 2024-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 501 0 0.00 277 -4.81 0.0722
2024-04-15 2024-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 501 -59 -10.54 291 -2.02 0.0767
2024-01-30 2023-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 560 14 2.56 297 7.61 0.0835
2023-12-18 2023-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 546 -74 -11.94 276 -14.55 0.0866
2023-12-18 2023-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 620 -50 -7.46 323 -16.32 0.0953
2023-12-18 2023-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 670 5 0.75 386 5.46 0.1200
2023-12-18 2022-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 665 40 6.40 366 15.82 0.1165
2023-12-19 2022-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 625 -7 -1.11 317 -7.87 0.1127
2023-12-19 2022-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 632 30 4.98 343 -3.38 0.1169
2023-12-19 2022-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 602 253 72.49 356 53.02 0.1109
2023-12-20 2021-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 349 7 2.05 233 18.97 0.0727
2023-12-20 2021-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 342 169 97.69 195 124.14 0.0686
2023-12-20 2021-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 173 -41 -19.16 87 -10.31 0.0321
2023-12-20 2021-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 214 -30 -12.30 98 -14.16 0.0393
2023-12-20 2020-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 244 0 0.00 114 5.61 0.0506
2023-12-20 2020-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 244 -22 -8.27 108 11.46 0.0551
2023-12-20 2020-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 266 0 0.00 96 28.00 0.0521
2023-12-21 2020-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 266 15 5.98 75 -7.41 0.0479
2023-12-22 2019-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 82 10.96 0.0444
2023-12-22 2019-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 73 0.00 0.0437
2023-12-22 2019-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 74 7.35 0.0460
2023-12-22 2019-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 69 21.43 0.0481
2023-12-22 2018-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 56 -8.20 0.0433
2023-12-21 2018-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 61 19.61 0.0441
2023-12-22 2018-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 52 0.00 0.0389
2023-12-22 2018-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 52 8.51 0.0386
2023-12-22 2017-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 48 0.00 0.0353
2023-12-22 2017-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 47 9.30 0.0358
2023-12-22 2017-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 44 13.16 0.0348
2023-12-22 2017-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 0 0.00 39 8.57 0.0307
2023-12-22 2016-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 251 251 35 0.0331
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.