Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionCrestwood Advisors Group LLC
Latest Disclosed Ownership93,303 shares
Latest Disclosed Value $ 45,860,208
Crestwood Advisors Group LLC reports 2.97% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 5, 2026 - Crestwood Advisors Group LLC filed a 13F-HR form disclosing ownership of 93,303 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $45,860,208 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 96,158 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -2.97% 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)
2026-05-05 2026-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 93,303 -2,855 -2.97 45,860 -17.69 0.7685
2026-02-03 2025-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 96,158 -3,635 -3.64 55,719 15.12 0.9281
2025-11-07 2025-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 99,793 4,484 4.70 48,400 25.24 0.8225
2025-08-05 2025-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 95,309 -17,520 -15.53 38,644 -31.17 0.6923
2025-05-05 2025-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 112,829 -6,929 -5.79 56,144 -9.88 1.0668
2025-02-04 2024-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 119,758 -2,727 -2.23 62,302 -17.77 1.1676
2024-10-30 2024-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 122,485 1,713 1.42 75,765 13.44 1.4472
2024-08-01 2024-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 120,772 2,937 2.49 66,787 -2.48 1.3814
2024-05-08 2024-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 117,835 7,233 6.54 68,487 16.66 1.4952
2024-02-13 2023-12-31 13F/A-1 THERMO FISHER SCIENTIFIC INC COM Stock 883556102 110,602 871 0.79 58,707 5.70 1.3678
2024-01-29 2023-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 110,602 871 58,707 1.3644
2023-11-15 2023-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 109,731 54,650 99.22 55,543 93.27 1.4567
2023-08-15 2023-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 55,081 22,306 68.06 28,738 52.13 0.9033
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 32,775 29,615 937.18 18,891 985.63 0.6293
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,160 -169 -5.08 1,740 3.08 0.0593
2022-10-26 2022-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,329 -362 -9.81 1,688 -15.81 0.0599
2022-07-07 2022-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,691 337 10.05 2,005 1.21 0.0675
2022-04-12 2022-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,354 -21 -0.62 1,981 -12.03 0.0555
2022-02-15 2021-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,375 355 11.75 2,252 30.55 0.0584
2021-11-03 2021-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,020 51 1.72 1,725 15.15 0.0489
2021-08-13 2021-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 2,969 0 0.00 1,498 10.55 0.0433
2021-04-21 2021-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 2,969 -138 -4.44 1,355 -6.36 0.0426
2021-02-09 2020-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,107 44 1.44 1,447 7.03 0.0477
2020-10-06 2020-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,063 14 0.46 1,352 22.35 0.0508
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,049 -3 -0.10 1,105 27.60 0.0442
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,052 -151 -4.71 866 -16.81 0.0430
2020-02-12 2019-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,203 -63 -1.93 1,041 9.46 0.0413
2019-11-13 2019-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 3,266 1,314 67.32 951 65.97 0.0418
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,952 445 29.53 573 39.08 0.0259
2019-05-09 2019-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,507 207 15.92 412 41.58 0.0295
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,300 0 0.00 291 -8.20 0.0232
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,300 -28 -2.11 317 3.59 0.0223
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,328 -329 -19.86 306 -10.53 0.0223
2018-05-14 2018-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 1,657 -519 -23.85 342 -17.19 0.0268
2018-01-11 2017-12-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 2,176 71 3.37 413 3.77 0.0329
2017-11-20 2017-09-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 2,105 -95 -4.32 398 2.84 0.0341
2017-07-31 2017-06-30 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 2,200 -124 -5.34 387 -0.51 0.0329
2017-05-03 2017-03-31 13F/A-1 THERMO FISHER SCIENTIFIC INC COM Stock 883556102 2,324 -316 -11.97 389 4.29 0.0343
2017-04-24 2017-03-31 13F THERMO FISHER SCIENTIFIC INC COM Stock 883556102 2,215 340
2017-01-12 2016-12-31 13F Thermo Fisher Scientific COM 883556102 2,640 -301 -10.23 373 -20.30 0.0361
2016-11-03 2016-09-30 13F Thermo Fisher Scientific COM 883556102 2,941 -50 -1.67 468 5.88 0.0560
2016-08-15 2016-06-30 13F Thermo Fisher Scientific COM 883556102 2,991 -374 -11.11 442 -7.14 0.0546
2016-05-16 2016-03-31 13F Thermo Fisher Scientific COM 883556102 3,365 -535 -13.72 476 -13.92 0.0562
2016-02-12 2015-12-31 13F Thermo Fisher Scientific COM 883556102 3,900 3,900 553 0.0667
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.