Thermo Fisher Scientific Inc.
US ˙ NYSE ˙ US8835561023

SecurityTMO / Thermo Fisher Scientific Inc.
InstitutionFifth Third Bancorp
Latest Disclosed Ownership418,258 shares
Latest Disclosed Value $ 205,586,345
Fifth Third Bancorp reports 27.22% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 418,258 shares of Thermo Fisher Scientific Inc. (US:TMO) valued at $205,586,355 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 328,780 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 27.22% during the quarter. The current value of the position is $198,233,379 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-01 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 418,258 89,478 27.22 205,586 7.91 0.3757
2026-02-02 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 328,780 1,115 0.34 190,512 19.88 0.6051
2025-11-07 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 327,665 6,440 2.00 158,924 22.02 0.5081
2025-07-15 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 321,225 -26,156 -7.53 130,244 -24.65 0.4502
2025-04-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 347,381 12,328 3.68 172,857 -0.83 0.6571
2025-01-21 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 335,053 34,917 11.63 174,305 -6.11 0.6322
2024-10-17 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 300,136 399 0.13 185,655 12.01 0.6725
2024-07-22 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 299,737 -1,334 -0.44 165,755 -5.28 0.6312
2024-04-23 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 301,071 1,729 0.58 174,985 10.13 0.6845
2024-01-19 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 299,342 -18,260 -5.75 158,888 -1.17 0.6759
2023-10-31 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 317,602 -3,653 -1.14 160,761 -4.09 0.7455
2023-07-26 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 321,255 10,194 3.28 167,615 -6.51 0.7399
2023-04-24 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 311,061 2,335 0.76 179,286 5.45 0.8345
2023-01-25 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 308,726 -18,171 -5.56 170,012 2.54 0.8170
2022-10-25 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 326,897 6,505 2.03 165,799 -4.75 0.8664
2022-08-04 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 320,392 3,722 1.18 174,063 -6.94 0.8416
2022-04-19 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 316,670 -6,944 -2.15 187,041 -13.38 0.7639
2022-02-01 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 323,614 3,632 1.14 215,928 18.11 0.8394
2021-10-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 319,982 -2,147 -0.67 182,815 12.50 0.7942
2021-08-06 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 322,129 -4,205 -1.29 162,504 9.11 0.7128
2021-05-07 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 326,334 -19,553 -5.65 148,932 -7.56 0.6913
2021-02-16 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 345,887 456 0.13 161,107 5.63 0.7920
2020-11-09 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 345,431 2,920 0.85 152,515 22.89 0.8428
2020-08-05 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 342,511 8,070 2.41 124,105 30.85 0.7441
2020-05-05 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 334,441 6,006 1.83 94,847 -11.11 0.6768
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 328,435 23,270 7.63 106,699 20.04 0.5941
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 305,165 39,820 15.01 88,885 14.06 0.5330
2019-08-07 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 265,345 54,800 26.03 77,927 35.22 0.4761
2019-05-14 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 210,545 24,035 12.89 57,630 38.07 0.3699
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 186,510 29,019 18.43 41,739 8.58 0.3035
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 157,491 20,730 15.16 38,440 35.69 0.2446
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 136,761 30,030 28.14 28,329 28.56 0.1920
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 106,731 16,259 17.97 22,036 28.27 0.1501
2018-02-14 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 90,472 26,811 42.12 17,179 42.62 0.1169
2017-11-14 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 63,661 9,892 18.40 12,045 28.40 0.0862
2017-08-11 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 53,769 9,373 21.11 9,381 37.57 0.0691
2017-05-12 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 44,396 -2,023 -4.36 6,819 4.11 0.0515
2017-02-13 2016-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 46,419 -750 -1.59 6,550 -12.70 0.0528
2017-02-09 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 47,169 0 7,503 0.0621
2016-11-10 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 47,169 -731 -1.53 7,503 6.00 0.0621
2016-08-11 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 47,900 -2,247 -4.48 7,078 -0.31 0.0601
2016-05-13 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 50,147 1,352 2.77 7,100 2.57 0.0614
2016-02-16 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 48,795 -5,105 -9.47 6,922 5.02 0.0608
2015-11-13 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 53,900 184 0.34 6,591 -5.44 0.0612
2015-08-14 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 53,716 -6,442 -10.71 6,970 -13.76 0.0608
2015-05-14 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 60,158 -945 -1.55 8,082 5.56 0.0700
2015-02-13 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 61,103 -6,781 -9.99 7,656 -7.32 0.0654
2014-11-17 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 67,884 785 1.17 8,261 4.33 0.0753
2014-08-14 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 67,099 -7,558 -10.12 7,918 -11.80 0.0717
2014-05-15 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 74,657 -347 -0.46 8,977 7.48 0.0844
2014-02-14 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 75,004 -63,128 -45.70 8,352 -34.39 0.0807
2013-11-14 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 138,132 -13,131 -8.68 12,729 -0.56 0.1312
2013-08-14 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 151,263 151,263 12,801 0.1366
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.