Thermo Fisher Scientific Inc.
US ˙ NYSE ˙ US8835561023

SecurityTMO / Thermo Fisher Scientific Inc.
InstitutionAscent Group, LLC
Latest Disclosed Ownership11,221 shares
Latest Disclosed Value $ 5,515,532
Ascent Group, LLC reports 3.07% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 15, 2026 - Ascent Group, LLC filed a 13F-HR form disclosing ownership of 11,221 shares of Thermo Fisher Scientific Inc. (US:TMO) valued at $5,515,458 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 11,576 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -3.07% during the quarter. The current value of the position is $5,318,193 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)
2026-05-15 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,221 -355 -3.07 5,516 -17.77 0.0631
2026-01-20 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,576 613 5.59 6,708 26.14 0.2293
2025-10-20 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,963 3,119 39.76 5,317 67.20 0.1881
2025-07-21 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,844 -1,007 -11.38 3,180 -27.79 0.1239
2025-05-16 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,851 1,454 19.66 4,404 14.45 0.1892
2025-02-21 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,397 -699 -8.63 3,848 -23.15 0.2890
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,096 -2,933 -26.59 5,008 -17.90 0.3793
2024-08-15 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 11,029 561 5.36 6,099 0.25 0.4967
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,468 3,484 49.89 6,084 59.31 0.5359
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,984 24 0.34 3,819 23.51 0.3623
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,960 -111 -1.57 3,092 -21.30 0.3414
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,071 -779 -9.92 3,930 -13.15 0.4330
2023-05-10 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,850 -876 -10.04 4,525 -5.85 0.4814
2023-02-17 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,726 530 6.47 4,805 14.08 0.5656
2022-11-15 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,196 115 1.42 4,212 -12.90 0.5123
2022-08-05 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,081 431 5.63 4,836 7.04 0.5782
2022-05-10 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,650 -23 -0.30 4,518 1.46 0.5257
2022-03-01 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,673 7,673 4,453 0.5674
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.