Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionPayden & Rygel
Latest Disclosed Ownership16,400 shares
Latest Disclosed Value $ 8,061
Payden & Rygel ownership in TMO / Thermo Fisher Scientific Inc.

On May 12, 2026 - Payden & Rygel filed a 13F-HR form disclosing ownership of 16,400 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $8,061 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2025 disclosing 0 shares of Thermo Fisher Scientific Inc..

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)
2026-05-12 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 16,400 16,400 8 0.6205
2025-02-13 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,800 -100.00 0 -100.00
2024-11-08 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,800 0 0.00 1 0.0858
2024-10-07 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,800 -1,100 -37.93 1 -100.00 0.0804
2024-10-08 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,900 0 0.00 2 0.00 0.0795
2024-02-13 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,900 0 0.00 2 0.00 0.1069
2024-10-07 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,900 -600 -17.14 1 0.00 0.1003
2023-08-10 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,500 -2,000 -36.36 2 -66.67 0.1290
2023-05-10 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,500 0 0.00 3 0.00 0.1877
2023-02-13 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,500 0 0.00 3 -99.89 0.1614
2022-11-10 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,500 2,000 57.14 2,790 46.76 0.1632
2022-08-12 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,500 3,500 1,901 0.1142
2021-05-12 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -700 -100.00 0 -100.00
2021-02-08 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 326 5.50 0.0167
2020-11-10 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 309 21.65 0.0183
2020-08-12 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 254 27.64 0.0162
2020-05-04 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 199 -12.33 0.0143
2020-01-31 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 227 11.27 0.0142
2019-10-30 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 204 -0.97 0.0139
2019-08-06 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 206 7.29 0.0141
2019-05-08 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 192 22.29 0.0140
2019-01-24 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 157 -8.19 0.0127
2018-11-07 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 171 17.93 0.0130
2018-08-08 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 145 0.00 0.0114
2018-05-08 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 145 9.02 0.0118
2018-02-06 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 133 0.76 0.0115
2017-11-14 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 132 8.20 0.0131
2017-08-10 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 122 12.96 0.0107
2017-05-10 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 108 9.09 0.0099
2017-02-08 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 99 -10.81 0.0091
2016-11-09 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 111 7.77 0.0111
2016-08-05 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 103 4.04 0.0117
2016-05-06 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 -74 -9.56 99 -10.00 0.0120
2016-02-09 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 774 74 10.57 110 27.91 0.0145
2015-11-02 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 86 -5.49 0.0124
2015-08-03 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 91 -3.19 0.0120
2015-05-08 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 94 6.82 0.0123
2015-02-06 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 88 3.53 0.0168
2014-11-05 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 85 2.41 0.0168
2014-08-07 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 83 -1.19 0.0210
2014-05-09 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 84 7.69 0.0327
2014-02-10 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 78 20.00 0.0266
2013-11-06 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 0 0.00 65 10.17 0.0232
2013-08-12 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 700 700 59 0.0230
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.