Thermo Fisher Scientific Inc.
CL ˙ SNSE ˙ US8835561023
SecurityCL:TMOCL / Thermo Fisher Scientific Inc.
InstitutionCastleview Partners, Llc
Latest Disclosed Ownership660 shares
Latest Disclosed Value $ 324,410
Castleview Partners, Llc reports 2.65% decrease in ownership of TMOCL / Thermo Fisher Scientific Inc.

On May 1, 2026 - Castleview Partners, Llc filed a 13F-HR form disclosing ownership of 660 shares of Thermo Fisher Scientific Inc. (CL:TMOCL) valued at $324,410 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 678 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -2.65% 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)
2026-05-01 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 660 -18 -2.65 324 -17.35 0.1663
2026-01-12 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 678 -4 -0.59 393 18.79 0.1947
2025-10-10 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 682 -798 -53.92 331 -45.00 0.1796
2025-07-16 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,480 186 14.37 600 -6.69 0.3856
2025-04-22 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,294 -151 -10.45 644 -14.83 0.4358
2025-01-21 2024-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,445 -211 -12.74 755 -26.27 0.4066
2025-01-21 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,656 0 1,024 0.5906
2024-10-21 2024-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,656 36 2.22 1,024 14.41 0.5907
2024-10-09 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,620 0 896 0.5092
2024-07-31 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,620 186 12.97 896 7.44 0.5092
2024-05-10 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,434 441 44.41 833 58.06 0.4653
2024-02-05 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 993 3 0.30 527 5.19 0.3692
2023-10-26 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 990 -2 -0.20 501 -3.09 0.4630
2023-08-15 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 992 -3 -0.30 518 -9.77 0.4663
2023-05-16 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 995 -8 -0.80 573 3.80 0.5082
2023-02-01 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,003 570 131.64 552 150.91 0.5378
2022-11-10 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 433 -1,112 -71.97 220 10.55 0.2102
2022-08-17 2022-06-30 13F/A-1 3M Common 883556102 1,545 1,112 256.81 200 -21.96 0.1590
2022-08-16 2022-06-30 13F TMO Equity 883556102 235,240 234,807 433 0.0049
2022-05-16 2022-03-31 13F THERMO FISHER SCIENTIFIC Equity 883556102 433 -288,481 -99.85 255 -41.11 0.1586
2022-02-17 2021-12-31 13F TMO Equity 883556102 288,914 288,407 56,885.01 433 69.14 0.0035
2021-08-17 2021-06-30 13F TMO Equity 883556102 507 -465 -47.84 256 27.36 0.1122
2018-05-07 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 972 972 201 0.1661
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.