Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionPatron Partners Advisors, Llc
Latest Disclosed Ownership538 shares
Latest Disclosed Value $ 264,453
Patron Partners Advisors, Llc ownership in TMO / Thermo Fisher Scientific Inc.

On April 29, 2026 - Patron Partners Advisors, Llc filed a 13F-HR form disclosing ownership of 538 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $264,453 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 538 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 0.00% 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)
2026-04-29 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 538 0 0.00 264 -15.11 0.1168
2026-02-11 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 538 0 0.00 312 19.62 0.1389
2025-10-31 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 538 0 0.00 261 19.27 0.1182
2025-07-16 2025-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 538 -72 -11.80 218 -28.05 0.1080
2025-04-24 2025-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 610 3 0.49 304 -3.81 0.1641
2025-01-24 2024-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 607 0 0.00 316 -16.00 0.1712
2024-11-05 2024-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 607 4 0.66 375 12.61 0.2075
2024-08-05 2024-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 603 0 0.00 333 -4.86 0.1960
2024-05-02 2024-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 603 16 2.73 350 12.54 0.2134
2024-01-18 2023-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 587 0 0.00 312 4.71 0.2067
2023-11-07 2023-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 587 14 2.44 297 -0.34 0.2191
2023-08-01 2023-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 573 -10 -1.72 299 -11.31 0.2113
2023-05-04 2023-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 583 -19 -3.16 336 1.51 0.2482
2023-01-27 2022-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 602 0 0.00 332 8.52 0.2488
2022-10-21 2022-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 602 0 0.00 305 -6.73 0.2534
2022-08-04 2022-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 602 2 0.33 327 -7.63 0.2597
2022-04-27 2022-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 600 -328 -35.34 354 -42.81 0.2415
2022-01-20 2021-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 928 39 4.39 619 22.09 0.4056
2021-10-29 2021-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 889 10 1.14 507 14.45 0.3726
2021-07-21 2021-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 879 39 4.64 443 15.67 0.3333
2021-05-20 2021-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 840 166 24.63 383 21.97 0.3246
2021-03-05 2020-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 674 674 314 0.3033
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.