Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionBurney Co/
Latest Disclosed Ownership1,392 shares
Latest Disclosed Value $ 684,210
Burney Co/ reports 24.68% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On April 29, 2026 - Burney Co/ filed a 13F-HR form disclosing ownership of 1,392 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $684,210 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 1,848 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -24.68% 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 1,392 -456 -24.68 684 -36.07 0.0175
2026-01-23 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,848 449 32.09 1,071 57.82 0.0334
2025-10-16 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,399 162 13.10 678 35.33 0.0216
2025-08-05 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,237 0 0.00 502 -18.54 0.0170
2025-05-06 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,237 390 46.04 616 39.77 0.0224
2025-01-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 847 -7 -0.82 441 -16.67 0.0156
2024-10-18 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 854 -3 -0.35 528 11.63 0.0188
2024-07-29 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 857 11 1.30 474 -3.67 0.0181
2024-05-22 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 846 0 0.00 492 9.35 0.0187
2024-02-12 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 846 -61 -6.73 449 -2.18 0.0189
2023-11-08 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 907 -168 -15.63 459 -18.04 0.0215
2023-08-09 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,075 -20 -1.83 561 -11.25 0.0257
2023-05-10 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,095 6 0.55 631 5.34 0.0311
2023-02-06 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,089 -446 -29.06 600 -23.11 0.0304
2022-11-15 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,535 -444 -22.44 779 -27.53 0.0430
2022-08-12 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,979 -2,299 -53.74 1,075 -57.46 0.0566
2022-05-09 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,278 2,854 200.42 2,527 166.00 0.1037
2022-02-11 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,424 0 0.00 950 16.71 0.0410
2021-11-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,424 -14 -0.97 814 12.28 0.0382
2021-08-06 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,438 26 1.84 725 12.58 0.0337
2021-05-13 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,412 -2,984 -67.88 644 -68.55 0.0318
2021-02-11 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,396 2,943 202.55 2,048 219.00 0.1124
2020-12-14 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,453 2 0.14 642 22.05 0.0398
2020-08-13 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,451 -1,835 -55.84 526 -43.56 0.0341
2020-05-13 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,286 75 2.34 932 -10.64 0.0716
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,211 1,847 135.41 1,043 162.72 0.0575
2019-11-12 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,364 0 0.00 397 -1.00 0.0238
2019-08-12 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,364 -664 -32.74 401 -27.75 0.0243
2019-05-13 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,028 -51 -2.45 555 19.35 0.0344
2019-02-12 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,079 0 0.00 465 -8.28 0.0327
2018-11-13 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,079 -660 -24.10 507 -10.58 0.0302
2018-08-13 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,739 332 13.79 567 14.08 0.0332
2018-05-08 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,407 -315 -11.57 497 -3.87 0.0308
2018-02-13 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,722 753 38.24 517 40.87 0.0292
2017-11-13 2017-09-30 13F/A-1 Thermo Fisher Scientific COM 883556102 1,969 0 0.00 367 7.31 0.0238
2017-11-09 2017-09-30 13F Thermo Fisher Scientific COM 883556102 1,969 0 342
2017-08-09 2017-06-30 13F Thermo Fisher Scientific COM 883556102 1,969 0 0.00 342 13.25 0.0224
2017-05-11 2017-03-31 13F Thermo Fisher Scientific COM 883556102 1,969 0 0.00 302 8.63 0.0199
2017-02-07 2016-12-31 13F Thermo Fisher Scientific COM 883556102 1,969 0 0.00 278 -10.90 0.0189
2016-11-14 2016-09-30 13F Thermo Fisher Scientific COM 883556102 1,969 0 0.00 312 7.22 0.0220
2016-08-10 2016-06-30 13F Thermo Fisher Scientific COM 883556102 1,969 -45 -2.23 291 2.11 0.0209
2016-05-02 2016-03-31 13F Thermo Fisher Scientific COM 883556102 2,014 0 0.00 285 0.71 0.0208
2016-02-09 2015-12-31 13F Thermo Fisher Scientific COM 883556102 2,014 0 0.00 283 15.04 0.0210
2015-11-03 2015-09-30 13F Thermo Fisher Scientific COM 883556102 2,014 0 0.00 246 -5.75 0.0189
2015-08-10 2015-06-30 13F Thermo Fisher Scientific COM 883556102 2,014 0 0.00 261 -3.69 0.0178
2015-05-12 2015-03-31 13F Thermo Fisher Scientific COM 883556102 2,014 -26 -1.27 271 5.86 0.0186
2015-02-11 2014-12-31 13F THERMO FISH COM 883556102 2,040 -85 -4.00 256 -1.16 0.0203
2014-11-12 2014-09-30 13F THERMO FISH COM 883556102 2,125 -165 -7.21 259 -4.07 0.0222
2014-08-05 2014-06-30 13F/A-1 THERMO FISH COM 883556102 2,290 0 0.00 270 -1.82 0.0234
2014-08-04 2014-06-30 13F THERMO FISH COM 883556102 2,290 270
2014-05-07 2014-03-31 13F/A-1 THERMO FISH COM 883556102 2,290 0 0.00 275 7.84 0.0251
2014-05-06 2014-03-31 13F UNIV HLTH B COM 883556102 160,502 13,172
2014-02-03 2013-12-31 13F THERMO FISH COM 883556102 2,290 -237 -9.38 255 9.44 0.0248
2013-11-04 2013-09-30 13F THERMO FISH COM 883556102 2,527 -293 -10.39 233 -2.51 0.0261
2013-07-22 2013-06-30 13F THERMO FISH COM 883556102 2,820 2,820 239 0.0298
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.