Thermo Fisher Scientific Inc.
CL ˙ SNSE ˙ US8835561023
SecurityCL:TMOCL / Thermo Fisher Scientific Inc.
InstitutionAdvisors Asset Management, Inc.
Latest Disclosed Ownership14,579 shares
Latest Disclosed Value $ 7,166,016
Advisors Asset Management, Inc. reports 1.59% increase in ownership of TMOCL / Thermo Fisher Scientific Inc.

On May 15, 2026 - Advisors Asset Management, Inc. filed a 13F-HR form disclosing ownership of 14,579 shares of Thermo Fisher Scientific Inc. (CL:TMOCL) valued at $7,166,016 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 14,351 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 1.59% 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)
2026-05-15 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,579 228 1.59 7,166 -13.82 0.1190
2026-02-12 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,351 -3,230 -18.37 8,316 -2.49 0.1396
2025-11-06 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 17,581 -1,871 -9.62 8,527 8.11 0.1447
2025-08-12 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 19,452 -1,579 -7.51 7,887 -24.63 0.1412
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 21,031 419 2.03 10,465 -2.40 0.1966
2025-02-10 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 20,612 -1,091 -5.03 10,723 -20.13 0.1975
2024-11-08 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 21,703 1,179 5.74 13,425 18.28 0.2466
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 20,524 236 1.16 11,350 -3.75 0.2214
2024-05-14 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 20,288 1,319 6.95 11,792 17.11 0.2266
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 18,969 -1,987 -9.48 10,069 -5.08 0.2056
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 20,956 -155 -0.73 10,607 -3.70 0.2288
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 21,111 -3,312 -13.56 11,015 -21.75 0.2250
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 24,423 -4,866 -16.61 14,077 -12.73 0.2864
2023-02-13 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 29,289 -6,926 -19.12 16,129 -12.19 0.3323
2022-11-08 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 36,215 -3,700 -9.27 18,368 -15.30 0.3862
2022-08-08 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 39,915 -3,432 -7.92 21,685 -15.30 0.4113
2022-05-17 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 43,347 -870 -1.97 25,603 -13.22 0.3943
2022-02-15 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 44,217 -152 -0.34 29,503 16.39 0.4212
2021-11-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 44,369 -7,438 -14.36 25,349 -3.01 0.3855
2021-07-30 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 51,807 -2,800 -5.13 26,135 4.87 0.3855
2021-05-07 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 54,607 -8,039 -12.83 24,922 -14.59 0.3875
2021-02-12 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 62,646 -4,406 -6.57 29,179 -1.44 0.4826
2020-11-16 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 67,052 -224 -0.33 29,605 21.45 0.5474
2020-08-12 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 67,276 2,055 3.15 24,377 31.79 0.4746
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 65,221 -4,204 -6.06 18,497 -17.99 0.4400
2020-05-20 2019-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 69,425 -4,753 -6.41 22,554 4.39 0.3954
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 69,425 -4,753 22,572 199,783.5413
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 74,178 -8,334 -10.10 21,606 -10.84 0.3979
2019-11-14 2019-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 82,512 -4,015 -4.64 24,232 2.31 0.4371
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 82,512 -4,015 24,232
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 86,527 -6,235 -6.72 23,684 14.09 0.4215
2019-02-06 2018-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 92,762 -5,514 -5.61 20,759 -13.46 0.4179
2019-01-31 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 92,762 -5,514 20,759
2018-11-15 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 98,276 4,463 4.76 23,987 23.44 0.3921
2018-08-22 2018-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 93,813 9,832 11.71 19,432 10.95 0.3300
2018-08-15 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,179 -80,802 19,432
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 83,981 7,563 9.90 17,514 20.70 0.2935
2018-02-13 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 76,418 4,367 6.06 14,510 6.44 0.2385
2017-11-07 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 72,051 7,717 12.00 13,632 21.45 0.2284
2017-08-02 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 64,334 -1,974 -2.98 11,224 10.20 0.1876
2017-05-02 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 66,308 5,713 9.43 10,185 5.68 0.1707
2016-10-31 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 60,595 -1,336 -2.16 9,638 5.32 0.1581
2016-08-08 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 61,931 6,443 11.61 9,151 16.47 0.1484
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 55,488 -10,579 -16.01 7,857 -16.17 0.1307
2016-02-10 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 66,067 865 1.33 9,372 17.55 0.1487
2015-11-16 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 65,202 6,477 11.03 7,973 4.63 0.1271
2015-08-11 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 58,725 5,667 10.68 7,620 6.90 0.1046
2015-05-13 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 53,058 -7,889 -12.94 7,128 -6.65 0.0949
2015-02-05 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 60,947 -889 -1.44 7,636 1.48 0.1024
2014-11-13 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 61,836 1,809 3.01 7,525 6.24 0.1038
2014-08-14 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 60,027 7,223 13.68 7,083 11.56 0.0982
2014-05-15 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 52,804 14,470 37.75 6,349 48.76 0.0963
2014-02-03 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 38,334 15,523 68.05 4,268 103.04 0.0688
2013-11-15 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 22,811 3,180 16.20 2,102 26.55 0.0373
2013-08-14 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 19,631 19,631 1,661 0.0314
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.