Thermo Fisher Scientific Inc.
US ˙ NYSE ˙ US8835561023

SecurityTMO / Thermo Fisher Scientific Inc.
InstitutionBlackRock Variable Series Funds, Inc. - BlackRock Managed Volatility V.I. Fund Class I
Latest Disclosed Ownership777 shares
Latest Disclosed Value $ 315,042
BlackRock Variable Series Funds, Inc. - BlackRock Managed Volatility V.I. Fund Class I reports 96.21% increase in ownership of TMO / Thermo Fisher Scientific Inc.

On August 28, 2025 - BlackRock Variable Series Funds, Inc. - BlackRock Managed Volatility V.I. Fund Class I filed a NPORT-P form disclosing ownership of 777 shares of Thermo Fisher Scientific Inc. (US:TMO) valued at $315,042 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 27, 2025 disclosing 396 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 96.21% during the quarter. The current value of the position is $364,965 USD.

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)
2025-08-28 2025-06-30 NP Thermo Fisher Scientific EC US8835561023 777 381 96.21 315 59.90 0.2074
2025-05-27 2025-03-31 NP Thermo Fisher Scientific EC US8835561023 396 -293 -42.53 197 -44.97 0.1315
2025-02-27 2024-12-31 NP Thermo Fisher Scientific EC US8835561023 689 -299 -30.26 358 -41.41 0.2216
2024-11-26 2024-09-30 NP Thermo Fisher Scientific EC US8835561023 988 -107 -9.77 611 0.99 0.3757
2024-08-27 2024-06-30 NP Thermo Fisher Scientific EC US8835561023 1,095 0 0.00 606 -4.87 0.3663
2024-05-28 2024-03-31 NP Thermo Fisher Scientific EC US8835561023 1,095 154 16.37 636 27.45 0.3717
2024-02-27 2023-12-31 NP Thermo Fisher Scientific EC US8835561023 941 -73 -7.20 499 -2.73 0.2996
2023-11-22 2023-09-30 NP Thermo Fisher Scientific EC US8835561023 1,014 243 31.52 513 27.61 0.3087
2023-08-25 2023-06-30 NP Thermo Fisher Scientific EC US8835561023 771 -358 -31.71 402 -38.15 0.2353
2023-05-26 2023-03-31 NP Thermo Fisher Scientific EC US8835561023 1,129 9 0.80 651 5.52 0.3843
2023-02-24 2022-12-31 NP Thermo Fisher Scientific EC US8835561023 1,120 -166 -12.91 617 -5.52 0.3543
2022-11-28 2022-09-30 NP Thermo Fisher Scientific EC US8835561023 1,286 -97 -7.01 652 -13.18 0.3830
2022-08-26 2022-06-30 NP Thermo Fisher Scientific EC US8835561023 1,383 -129 -8.53 751 -15.90 0.4217
2022-05-25 2022-03-31 NP Thermo Fisher Scientific EC US8835561023 1,512 282 22.93 893 8.90 0.4506
2022-02-25 2021-12-31 NP Thermo Fisher Scientific EC US8835561023 1,230 45 3.80 821 21.12 0.3819
2021-11-26 2021-09-30 NP Thermo Fisher Scientific EC US8835561023 1,185 237 25.00 677 41.63 0.3099
2021-08-24 2021-06-30 NP Thermo Fisher Scientific EC US8835561023 948 -21 -2.17 478 8.14 0.2171
2021-05-25 2021-03-31 NP Thermo Fisher Scientific EC US8835561023 969 -135 -12.23 442 -14.01 0.2017
2021-02-24 2020-12-31 NP Thermo Fisher Scientific EC US8835561023 1,104 -16 -1.43 514 4.05 0.2299
2020-11-24 2020-09-30 NP Thermo Fisher Scientific EC US8835561023 1,120 -295 -20.85 495 -3.52 0.2338
2020-08-24 2020-06-30 NP Thermo Fisher Scientific EC US8835561023 1,415 -868 -38.02 513 -20.87 0.2455
2020-05-26 2020-03-31 NP Thermo Fisher Scientific EC US8835561023 2,283 307 15.54 647 0.94 0.3188
2020-02-25 2019-12-31 NP Thermo Fisher Scientific EC 883556102 1,976 -588 -22.93 642 -14.08 0.2717
2019-11-25 2019-09-30 NP Thermo Fisher Scientific EC US8835561023 2,564 2,564 747 0.3177
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.