Thermo Fisher Scientific Inc.
US ˙ NYSE ˙ US8835561023

SecurityTMO / Thermo Fisher Scientific Inc.
InstitutionQuilter Plc
Latest Disclosed Ownership288,042 shares
Latest Disclosed Value $ 141,581,285
Quilter Plc reports 3.04% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 13, 2026 - Quilter Plc filed a 13F-HR form disclosing ownership of 288,042 shares of Thermo Fisher Scientific Inc. (US:TMO) valued at $141,581,284 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 279,531 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 3.04% during the quarter. The current value of the position is $136,517,506 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)
2026-05-13 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 288,042 8,511 3.04 141,581 -12.59 1.2568
2026-01-21 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 279,531 745 0.27 161,974 19.79 2.7196
2025-10-31 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 278,786 2,675 0.97 135,217 20.78 2.3221
2025-08-12 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 276,111 35,983 14.98 111,952 -6.31 2.0438
2025-04-24 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 240,128 4,824 2.05 119,488 -2.39 2.4814
2025-01-29 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 235,304 19,148 8.86 122,412 -8.45 2.4182
2024-11-12 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 216,156 790 0.37 133,708 12.27 2.7282
2024-08-09 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 215,366 8,890 4.31 119,097 -0.76 2.6714
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 206,476 5,795 2.89 120,006 12.57 2.8379
2024-02-14 2023-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 200,681 7,540 3.90 106,604 -44.68 3.6010
2024-01-24 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 200,681 7,540 199,517 0.6255
2023-11-01 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 193,141 12,963 7.19 192,716 7.79 0.7602
2023-07-19 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 180,178 12,298 7.33 178,789 7.25 0.6944
2023-05-16 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 167,880 669 0.40 166,705 81.04 0.6399
2023-02-08 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 167,211 4,595 2.83 92,081 11.64 3.0299
2022-11-02 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 162,616 1,735 1.08 82,478 -5.64 2.9590
2022-08-04 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 160,881 3,584 2.28 87,404 -5.92 2.9571
2022-05-20 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 157,297 3,901 2.54 92,908 -6.09 2.5253
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 153,396 19,722 14.75 98,928 29.53 2.5769
2021-11-04 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 133,674 4,238 3.27 76,372 16.96 2.1305
2021-08-12 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 129,436 15,449 13.55 65,296 25.52 1.8778
2021-05-14 2021-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 113,987 15,375 15.59 52,021 13.26 1.6451
2021-05-12 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 113,987 15,375 52,021 0.7596
2021-02-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 98,612 13,681 16.11 45,932 22.49 1.5736
2020-11-12 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 84,931 3,518 4.32 37,499 27.12 1.4848
2020-08-12 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 81,413 15,508 23.53 29,499 57.82 1.4451
2020-05-08 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 65,905 20,333 44.62 18,691 26.24 1.2365
2020-02-13 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 45,572 45,572 14,806 0.8691
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.